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NASkeet
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Joined: April 29, 2006
Posts: 3185
Location: South Benfleet, Essex, UK
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 Posted: Thu Apr 06, 2023 12:46 pm Post subject: Re: "Autoflash" - Alternative & Updated "Spark Plug" Options |
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Here is the original "article" about Autoflash & Unipart which appeared in the PULSE newspaper. I stumbled upon it in my automotive technical-literature archives recently. I think that they might be too heavy as ear-rings! 
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Regards.
Nigel A. Skeet
Independent tutor (semi-retired) of mathematics, physics, technology & engineering for secondary, tertiary, further & higher education.
Much modified, RHD 1973 VW "1600" Type 2 Westfalia Continental campervan, with the World's only decent, cross-over-arm, SWF pantograph rear-window wiper
Onetime member, plus former Technical Editor & Editor of Transporter Talk magazine
Volkswagen Type 2 Owners' Club (Great Britain)
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NASkeet
Samba Member
Joined: April 29, 2006
Posts: 3185
Location: South Benfleet, Essex, UK
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| Posted: Thu Feb 09, 2023 1:01 pm Post subject: Re: "Autoflash" - Alternative & Updated "Spark Plug" Options |
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| jeffrey8164 wrote: |
| I think if there was truly a superior plug design it would be proven already and everyone would have a version by now. |
That is probably true.
In my other topic thread on the Triumph Dolomite Club forum in Great Britain, a former resident of the USSR, mentioned a similar product to the "Autoflash", which was said to have been manufactured by a Ukrainian company called PLAZMOFOR.
https://forum.triumphdolomite.co.uk/viewtopic.php?f=5&t=37831#p345321
https://plazmofor.prom.ua/ua/
_________________
Regards.
Nigel A. Skeet
Independent tutor (semi-retired) of mathematics, physics, technology & engineering for secondary, tertiary, further & higher education.
Much modified, RHD 1973 VW "1600" Type 2 Westfalia Continental campervan, with the World's only decent, cross-over-arm, SWF pantograph rear-window wiper
Onetime member, plus former Technical Editor & Editor of Transporter Talk magazine
Volkswagen Type 2 Owners' Club (Great Britain)
https://vwt2oc.co.uk |
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NASkeet
Samba Member
Joined: April 29, 2006
Posts: 3185
Location: South Benfleet, Essex, UK
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| Posted: Thu Feb 09, 2023 12:48 pm Post subject: Re: "Autoflash" - Alternative & Updated "Spark Plug" Options |
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| ps2375 wrote: |
| Erik G wrote: |
| NASkeet wrote: |
That's a lot of driving, just to get to and from work!
Wouldn't it have been better to commute to & from work by railway train!?!
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me thinks you've never been to the americas |
LOLOLOLOL
I have customers that I support that are 14-16 hours apart, some even more (driving mostly 84mph). Thankfully I don't see them in the same week or even month. I have driven 8 hrs in the same day one direction and never left the state I was in. The American west is vast and not conducive to public transit nor travel by rail, the same trip by rail could take 12-36 hrs since cargo trains literally OWN the tracks and take priority. |
One of my local female acquaintances (works on the checkout, at the local branch of Iceland supermarkets), whose husband works as a consultant safety inspector on the railways in the USA, relayed his comments that railway safety standards in the USA are much inferior to those in Great Britain! I have seen video footage of railway lines in the USA which resemble fairground rides!
When I travelled in November 1994 by InterCity 125 (introduced in the early-1970s) overnight sleeper train from London to Aberdeen, for a job interview at Robert Gordon University's Department of Architecture & Built Environment, several hundred miles away, it took only about 7 hours to get there.  We also have freight trains.
https://www.thetrainline.com/train-times/london-to-aberdeen
https://rail.cc/night-train/london-aberdeen-caledo...0%20hours.
https://en.wikipedia.org/wiki/InterCity_125
https://simple.wikipedia.org/wiki/InterCity_125
https://british-rail.fandom.com/wiki/InterCity_125...erator%29.
_________________
Regards.
Nigel A. Skeet
Independent tutor (semi-retired) of mathematics, physics, technology & engineering for secondary, tertiary, further & higher education.
Much modified, RHD 1973 VW "1600" Type 2 Westfalia Continental campervan, with the World's only decent, cross-over-arm, SWF pantograph rear-window wiper
Onetime member, plus former Technical Editor & Editor of Transporter Talk magazine
Volkswagen Type 2 Owners' Club (Great Britain)
https://vwt2oc.co.uk
Last edited by NASkeet on Thu Apr 06, 2023 12:56 pm; edited 4 times in total |
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NASkeet
Samba Member
Joined: April 29, 2006
Posts: 3185
Location: South Benfleet, Essex, UK
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| Posted: Thu Feb 09, 2023 12:34 pm Post subject: Re: "Autoflash" - Alternative & Updated "Spark Plug" Options |
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| Bus boy 89 wrote: |
| Yes a Ram is an American pick up and a 2276 is a big capacity type 1 vw motor. |
I have never heard of a truck manufacturer by the name of RAM, although I am acquainted with a large number of truck manufacturers (past & present) in Great Britain, Europe, Asia & North America; including : AEC, Albion, Ashok-Leyland, Atkinson, Austin, Bedford, Berliet, Commer, Dennis, Deutz, Dodge (UK), ERF, Foden, Ford (UK), Guy, Hannomag, Isuzu, Iveco, Karrier, Leyland, Mack, Magirus, Magirus-Deutz, MAN (part of the Volkswagen Group), Mercedes (i.e. Daimler-Benz), Mitsubishi, Morris, Nissan, Opel, Oshkosh, Peterbilt, Puch (part of Steyr-Daimler-Puch), Renault, Saviem, Scammel, Scania (part of the Volkswagen Group), Seddon, Seddon-Atkinson, Steyr (part of Steyr-Daimler-Puch), Stonefield (i.e. Scotland’s very own 4 x 4 & 6 x 4 trucks, dating from circa 1979) Tata, Tatra, Thornycroft, Toyota, Volvo and White.
https://en.wikipedia.org/wiki/List_of_truck_manufacturers
https://en.wikipedia.org/wiki/List_of_truck_manufacturers#North_America
_________________
Regards.
Nigel A. Skeet
Independent tutor (semi-retired) of mathematics, physics, technology & engineering for secondary, tertiary, further & higher education.
Much modified, RHD 1973 VW "1600" Type 2 Westfalia Continental campervan, with the World's only decent, cross-over-arm, SWF pantograph rear-window wiper
Onetime member, plus former Technical Editor & Editor of Transporter Talk magazine
Volkswagen Type 2 Owners' Club (Great Britain)
https://vwt2oc.co.uk |
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vamram 
Samba Member
Joined: March 08, 2012
Posts: 7995
Location: NOVA
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| Posted: Thu Feb 09, 2023 12:33 pm Post subject: Re: "Autoflash" - Alternative & Updated "Spark Plug" Options |
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| jeffrey8164 wrote: |
| I think if there was truly a superior plug design it would be proven already and everyone would have a version by now. |
Bingo!
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NASkeet
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Joined: April 29, 2006
Posts: 3185
Location: South Benfleet, Essex, UK
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| Posted: Thu Feb 09, 2023 12:06 pm Post subject: Re: "Autoflash" - Alternative & Updated "Spark Plug" Options |
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| Erik G wrote: |
| NASkeet wrote: |
That's a lot of driving, just to get to and from work!
Wouldn't it have been better to commute to & from work by railway train!?!
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me thinks you've never been to the americas |
During a two-centre holiday with my parents in September 1981, we visited Vancouver Island, British Columbia, Canada (stayed with two retired Canadian army nurses that we had met in Ethiopia in 1972) and southern California, USA.
In California, I drove a hired (rented in USA parlance!  ) Luton-bodied, Ford Honey motorhome [circa 23 feet long x 8 feet wide x 10~11 feet high] with a gutless V8 petrol engine which gave ONLY 10 miles per US gallon of petrol, and whose cooling system boiled up at the least suggestion of a hill.
https://www.campingandcaravanningclub.co.uk/advice/equipment/types-of-motorhomes/
https://www.wikimotors.org/what-is-a-luton-body.ht...uck%20cab.
https://en.wikipedia.org/wiki/Box_truck#Luton_body
https://www.smartrvguide.com/rvs-for-sale/ford-honey
www.viewrvs.com/motorhome/honey/honey-motorhome.php
I was appalled to see massive chunks of truck tyres, littering the side of the Pacific Coast Highway, at regular intervals.   I have never seen this in any other country in which I have travelled, of which there have been more than a few! I suspect that even the bus & truck tyres in Albania in the mid-1960s and in Russia & Baltic States in 1993, were probably in much better condition!
We travelled on one of the public-transport buses in the San Diego area and found a carton of Valvoline molybdenum sulphide grease, plus paperback copies of J. R. R. Tolkien's books "Lord of the Rings" and "The Hobbit" in a thrift / charity shop. I still have those books and there is some of that grease still remaining.
Strangely, the local populous never seemed to walk anywhere; preferring to drive instead, even if it were only a few blocks away! Perhaps it was the fear of muggings or drive-by shootings that seem to be so common in the USA!?!
n.b. sulphide is spelt the proper way, in preference to sulfide!
_________________
Regards.
Nigel A. Skeet
Independent tutor (semi-retired) of mathematics, physics, technology & engineering for secondary, tertiary, further & higher education.
Much modified, RHD 1973 VW "1600" Type 2 Westfalia Continental campervan, with the World's only decent, cross-over-arm, SWF pantograph rear-window wiper
Onetime member, plus former Technical Editor & Editor of Transporter Talk magazine
Volkswagen Type 2 Owners' Club (Great Britain)
https://vwt2oc.co.uk
Last edited by NASkeet on Thu Feb 09, 2023 2:23 pm; edited 5 times in total |
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jeffrey8164
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| Posted: Tue Feb 07, 2023 5:05 pm Post subject: Re: "Autoflash" - Alternative & Updated "Spark Plug" Options |
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I think if there was truly a superior plug design it would be proven already and everyone would have a version by now.
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ps2375
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Joined: April 24, 2014
Posts: 2516
Location: Meridian,ID
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| Posted: Tue Feb 07, 2023 4:47 pm Post subject: Re: "Autoflash" - Alternative & Updated "Spark Plug" Options |
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| Erik G wrote: |
| NASkeet wrote: |
That's a lot of driving, just to get to and from work!
Wouldn't it have been better to commute to & from work by railway train!?!
|
me thinks you've never been to the americas |
LOLOLOLOL
I have customers that I support that are 14-16 hours apart, some even more (driving mostly 84mph). Thankfully I don't see them in the same week or even month. I have driven 8 hrs in the same day one direction and never left the state I was in. The American west is vast and not conducive to public transit nor travel by rail, the same trip by rail could take 12-36 hrs since cargo trains literally OWN the tracks and take priority. |
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Erik G
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Joined: October 16, 2002
Posts: 13545
Location: Tejas!
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| Posted: Tue Feb 07, 2023 3:38 pm Post subject: Re: "Autoflash" - Alternative & Updated "Spark Plug" Options |
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| NASkeet wrote: |
That's a lot of driving, just to get to and from work!
Wouldn't it have been better to commute to & from work by railway train!?!
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me thinks you've never been to the americas |
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NASkeet
Samba Member
Joined: April 29, 2006
Posts: 3185
Location: South Benfleet, Essex, UK
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| Posted: Tue Feb 07, 2023 2:45 pm Post subject: Re: "Autoflash" - Alternative & Updated "Spark Plug" Options |
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Here are some more pictures of the early-1980s vintage "Autoflash" polythermic-converter spark-plug substitute, that I found on another French website, that are also listed on French E-bay.
https://picclick.fr/Lot-de-8-bougies-dallumage-neuves-de-la-363120454329.html
https://www.ebay.fr/itm/363120454329?mkevt=1&m...EVEg%3D%3D
_________________
Regards.
Nigel A. Skeet
Independent tutor (semi-retired) of mathematics, physics, technology & engineering for secondary, tertiary, further & higher education.
Much modified, RHD 1973 VW "1600" Type 2 Westfalia Continental campervan, with the World's only decent, cross-over-arm, SWF pantograph rear-window wiper
Onetime member, plus former Technical Editor & Editor of Transporter Talk magazine
Volkswagen Type 2 Owners' Club (Great Britain)
https://vwt2oc.co.uk |
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NASkeet
Samba Member
Joined: April 29, 2006
Posts: 3185
Location: South Benfleet, Essex, UK
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| Posted: Tue Feb 07, 2023 2:17 pm Post subject: Re: "Autoflash" - Alternative & Updated "Spark Plug" Options |
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| Bonesberg55 wrote: |
Those Autoflash photos look similar to the "fire injectors" that Warshawsky/J.C. Whitney used to sell back in the early 70s. I think there were more ground electrodes. Being the teenage sap that I was, I took the bait. They were around 3X the price of regular plugs. They claimed increased gas mileage & a noticeable increase in your idle speed. As I recall, there was no difference other than they went a bit longer.
When we were first married, my wife had a '78 Rabbit and I did notice a difference in the brand of spark plug used. The Bosch original equipment spec plug got 2 mpg better than the Champion equivalent, 38 mpg vs 36 mpg. That, to me, was a significant difference. |
I have a general catalogue of J. C. Whitney dating from 1984 (given to me by an American foreign-student at Cranfield), but I don't recall seeing any alternative designs of "spark-plug" in there.
I'll wager that you would not have got anywhere near as much as 36 mpg (miles per US gallon or miles per proper Imperial gallon!?!) driving an American car, for which I have heard that 18 mpg would have been considered to be good!?!
_________________
Regards.
Nigel A. Skeet
Independent tutor (semi-retired) of mathematics, physics, technology & engineering for secondary, tertiary, further & higher education.
Much modified, RHD 1973 VW "1600" Type 2 Westfalia Continental campervan, with the World's only decent, cross-over-arm, SWF pantograph rear-window wiper
Onetime member, plus former Technical Editor & Editor of Transporter Talk magazine
Volkswagen Type 2 Owners' Club (Great Britain)
https://vwt2oc.co.uk
Last edited by NASkeet on Thu Feb 09, 2023 12:55 pm; edited 1 time in total |
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NASkeet
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Joined: April 29, 2006
Posts: 3185
Location: South Benfleet, Essex, UK
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| Posted: Tue Feb 07, 2023 2:10 pm Post subject: Re: "Autoflash" - Alternative & Updated "Spark Plug" Options |
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| oprn wrote: |
| NASkeet wrote: |
| I Ride Sand wrote: |
| NASkeet wrote: |
it would probably take me nearly 50 years to rack up 198,000 miles!
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between January 2018 and January 2019 I racked up over 31,000 miles just getting to work. In 2016, I put about 60,000 miles on a single car between commuting to work and driving for fun.
the US is a bit more.... sprawled out. |
That's a lot of driving, just to get to and from work!
Wouldn't it have been better to commute to & from work by railway train!?!
In some countries, employers specify as part of the employment contract, that employees must live within a half-hours' travelling distance of their work-place. This is certainly specified for staff at South Essex College, in England.
During the 1990~91, 12-month academic-year that I spent at the Royal Military College of Science, I was covering about 13,000 miles, going home for the weekends with my family; living in the officers' mess on campus during the week. That's the most driving I have ever done in one year! |
Back when I was still in the work force I averaged about 66,000 km a year just for work then about another 20,000 or so for personal travel. No there is no public transportation in our part of the world of any description. No trains, no busses, no subways, not even a decent taxi service.
When Platinum plugs first came out I tried a set in my Rabbit. They lasted 3 days and when I took them out instead of a center electrode there were just deep holes on all 4 plugs. That was with the stock VW ignition system. I kind of lost faith in them... |
I suspect that the platinum spark plugs with which you were supplied were of the wrong "heat-range"!
Canada has a vast land area, but only about 37,500,000 population, so outside of the large cities & towns, it is probably not economically viable to have an integrated public-transport network! Although the mainland of Great Britain is of relatively small area, the population is slightly larger than the combined populations of Australia, Canada & New Zealand!
During the four years that I was a student at the University of London (3 years at Chelsea College & 1 year at Institute of Education), I travelled from my home on Canvey Island, Essex by bus to South Benfleet, Essex, British Rail train from Benfleet Station to London Fenchurch Street Station & London Underground trains (i.e. the "Tube") from Tower Hill Tube-Station to either of Sloane Square Tube-Station, Fulham Broadway Tube-Station or Russell Square Tube-Station, with changes as necessary, followed by a 10~15 minute walk; taking a total of 1½~1¾ hours each way.
During the first of four and a half years, that I was a postgraduate student at Cranfield Institute of Technology, I travelled from my home on Canvey Island, Essex by bus to South Benfleet, Essex, British Rail train from Benfleet Station to London Fenchurch Street Station & London Underground trains (i.e. the"Tube") from Tower Hill Tube-Station to either Euston or King's Cross / St, Pancras Stations, followed by another British Rail train to either Bedford, in Bedfordshire or Bletchley in Buckinghamshire (recall Bletchley Park, centre of WW2 "Enigma-machine" code breaking) and a public-transport bus to Cranfield; taking a total of circa 4 hours.
In contrast, the 80 mile cross-country journey by road (lots of narrow, windy roads with sharp 90 degree bends every few hundred yards) between Canvey Island and Cranfield, typically took 2½ hours in my family's 1974 Triumph Toledo 1300 "HL Special" on Friday & Sunday evenings. After a heavy snowfall lasting a week, I did the same journey on snow, in 2¾ hours, albeit under lighter traffic conditions.
These days, having reached state retirement age last year, I now have a zero-cost concessionary bus pass, which enables me to travel FREE of charge, on almost any public-transport bus service between 9:30 am & 11:00 pm on weekdays and virtually any time at weekends, anywhere in England & Wales. 
_________________
Regards.
Nigel A. Skeet
Independent tutor (semi-retired) of mathematics, physics, technology & engineering for secondary, tertiary, further & higher education.
Much modified, RHD 1973 VW "1600" Type 2 Westfalia Continental campervan, with the World's only decent, cross-over-arm, SWF pantograph rear-window wiper
Onetime member, plus former Technical Editor & Editor of Transporter Talk magazine
Volkswagen Type 2 Owners' Club (Great Britain)
https://vwt2oc.co.uk |
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Bonesberg55
Samba Member
Joined: January 18, 2012
Posts: 1269
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| Posted: Fri Feb 03, 2023 3:14 pm Post subject: Re: "Autoflash" - Alternative & Updated "Spark Plug" Options |
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Those Autoflash photos look similar to the "fire injectors" that Warshawsky/J.C. Whitney used to sell back in the early 70s. I think there were more ground electrodes. Being the teenage sap that I was, I took the bait. They were around 3X the price of regular plugs. They claimed increased gas mileage & a noticeable increase in your idle speed. As I recall, there was no difference other than they went a bit longer.
When we were first married, my wife had a '78 Rabbit and I did notice a difference in the brand of spark plug used. The Bosch original equipment spec plug got 2 mpg better than the Champion equivalent, 38 mpg vs 36 mpg. That, to me, was a significant difference. |
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oprn
Samba Member
Joined: November 13, 2016
Posts: 14704
Location: Western Canada
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| Posted: Fri Feb 03, 2023 2:55 pm Post subject: Re: "Autoflash" - Alternative & Updated "Spark Plug" Options |
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| NASkeet wrote: |
| I Ride Sand wrote: |
| NASkeet wrote: |
it would probably take me nearly 50 years to rack up 198,000 miles!
|
between January 2018 and January 2019 I racked up over 31,000 miles just getting to work. In 2016, I put about 60,000 miles on a single car between commuting to work and driving for fun.
the US is a bit more.... sprawled out. |
That's a lot of driving, just to get to and from work!
Wouldn't it have been better to commute to & from work by railway train!?!
In some countries, employers specify as part of the employment contract, that employees must live within a half-hours' travelling distance of their work-place. This is certainly specified for staff at South Essex College, in England.
During the 1990~91, 12-month academic-year that I spent at the Royal Military College of Science, I was covering about 13,000 miles, going home for the weekends with my family; living in the officers' mess on campus during the week. That's the most driving I have ever done in one year! |
Back when I was still in the work force I averaged about 66,000 km a year just for work then about another 20,000 or so for personal travel. No there is no public transportation in our part of the world of any description. No trains, no busses, no subways, not even a decent taxi service.
When Platinum plugs first came out I tried a set in my Rabbit. They lasted 3 days and when I took them out instead of a center electrode there were just deep holes on all 4 plugs. That was with the stock VW ignition system. I kind of lost faith in them...
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Bus boy 89
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Joined: February 24, 2022
Posts: 39
Location: England
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| Posted: Fri Feb 03, 2023 1:40 pm Post subject: Re: "Autoflash" - Alternative & Updated "Spark Plug" Options |
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| Yes a Ram is an American pick up and a 2276 is a big capacity type 1 vw motor. |
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NASkeet
Samba Member
Joined: April 29, 2006
Posts: 3185
Location: South Benfleet, Essex, UK
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| Posted: Fri Feb 03, 2023 1:35 pm Post subject: Re: "Autoflash" - Alternative & Updated "Spark Plug" Options |
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| raygreenwood wrote: |
| Pruneman99 wrote: |
I changed the plugs on my Nissian at 200k. They looked new still.
They were of an odd design. On the ground probe, there was a flat round protrusion. Think of a set of points, if that makes sense.
6,000 miles for a set of plugs? Damn, that's awful. How rich ya running? |
Those are probably what is known as "double platinum" plugs. In dbl platinum, instead of just the center electrode being platinum, they have a very small puck or donut of platinum...usually about the diameter of a straight pin head....maybe 1mm diameter...welded to the side/ground electrode.
It makes for a very high mileage plug. There are a very few single platinum plugs made with just the donut/puck on the ground electrode and normal center electrode. Ray |
It's amazing how many spark-plug options there are!
https://www.boschautoparts.com/g/spark-plugs
https://www.boschautoparts.com/p/copper-with-nickel-spark-plugs
https://www.boschautoparts.com/p/silver-spark-plugs
https://www.boschautoparts.com/p/platinum-spark-plugs
https://www.boschautoparts.com/p/double-platinum-spark-plugs
https://www.boschautoparts.com/p/platinum-4-spark-plugs
https://www.boschautoparts.com/p/iridium-spark-plugs
https://www.boschautoparts.com/p/double-iridium-spark-plugs
https://www.boschautoparts.com/p/double-iridium-pin-to-pin-spark-plugs
_________________
Regards.
Nigel A. Skeet
Independent tutor (semi-retired) of mathematics, physics, technology & engineering for secondary, tertiary, further & higher education.
Much modified, RHD 1973 VW "1600" Type 2 Westfalia Continental campervan, with the World's only decent, cross-over-arm, SWF pantograph rear-window wiper
Onetime member, plus former Technical Editor & Editor of Transporter Talk magazine
Volkswagen Type 2 Owners' Club (Great Britain)
https://vwt2oc.co.uk |
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NASkeet
Samba Member
Joined: April 29, 2006
Posts: 3185
Location: South Benfleet, Essex, UK
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| Posted: Fri Feb 03, 2023 12:26 pm Post subject: Re: "Autoflash" - Alternative & Updated "Spark Plug" Options |
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| I Ride Sand wrote: |
| NASkeet wrote: |
it would probably take me nearly 50 years to rack up 198,000 miles!
|
between January 2018 and January 2019 I racked up over 31,000 miles just getting to work. In 2016, I put about 60,000 miles on a single car between commuting to work and driving for fun.
the US is a bit more.... sprawled out. |
That's a lot of driving, just to get to and from work!
Wouldn't it have been better to commute to & from work by railway train!?!
In some countries, employers specify as part of the employment contract, that employees must live within a half-hours' travelling distance of their work-place. This is certainly specified for staff at South Essex College, in England.
During the 1990~91, 12-month academic-year that I spent at the Royal Military College of Science, I was covering about 13,000 miles, going home for the weekends with my family; living in the officers' mess on campus during the week. That's the most driving I have ever done in one year!
_________________
Regards.
Nigel A. Skeet
Independent tutor (semi-retired) of mathematics, physics, technology & engineering for secondary, tertiary, further & higher education.
Much modified, RHD 1973 VW "1600" Type 2 Westfalia Continental campervan, with the World's only decent, cross-over-arm, SWF pantograph rear-window wiper
Onetime member, plus former Technical Editor & Editor of Transporter Talk magazine
Volkswagen Type 2 Owners' Club (Great Britain)
https://vwt2oc.co.uk |
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Pruneman99
Samba Member
Joined: February 22, 2012
Posts: 5013
Location: Oceanside
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| Posted: Fri Feb 03, 2023 9:11 am Post subject: Re: "Autoflash" - Alternative & Updated "Spark Plug" Options |
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| raygreenwood wrote: |
| Pruneman99 wrote: |
I changed the plugs on my Nissian at 200k. They looked new still.
They were of an odd design. On the ground probe, there was a flat round protrusion. Think of a set of points, if that makes sense.
6,000 miles for a set of plugs? Damn, that's awful. How rich ya running? |
Those are probably what is known as "double platinum" plugs. In dbl platinum, instead of just the center electrode being platinum, they have a very small puck or donut of platinum...usually about the diameter of a straight pin head....maybe 1mm diameter...welded to the side/ground electrode.
It makes for a very high mileage plug. There are a very few single platinum plugs made with just the donut/puck on the ground electrode and normal center electrode. Ray |
That's probably what they were then. I just have never seen the round puck on the ground side before. They must work well, there was no noticeable wear after 200k. |
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raygreenwood
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Location: Oklahoma City
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| Posted: Fri Feb 03, 2023 9:04 am Post subject: Re: "Autoflash" - Alternative & Updated "Spark Plug" Options |
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| Pruneman99 wrote: |
I changed the plugs on my Nissian at 200k. They looked new still.
They were of an odd design. On the ground probe, there was a flat round protrusion. Think of a set of points, if that makes sense.
6,000 miles for a set of plugs? Damn, that's awful. How rich ya running? |
Those are probably what is known as "double platinum" plugs. In dbl platinum, instead of just the center electrode being platinum, they have a very small puck or donut of platinum...usually about the diameter of a straight pin head....maybe 1mm diameter...welded to the side/ground electrode.
It makes for a very high mileage plug. There are a very few single platinum plugs made with just the donut/puck on the ground electrode and normal center electrode. Ray |
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Pruneman99
Samba Member
Joined: February 22, 2012
Posts: 5013
Location: Oceanside
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| Posted: Fri Feb 03, 2023 8:51 am Post subject: Re: "Autoflash" - Alternative & Updated "Spark Plug" Options |
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I changed the plugs on my Nissian at 200k. They looked new still.
They were of an odd design. On the ground probe, there was a flat round protrusion. Think of a set of points, if that makes sense.
6,000 miles for a set of plugs? Damn, that's awful. How rich ya running? |
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