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DanHoug
Samba Member
Joined: December 05, 2016
Posts: 5684
Location: Bemidji, MN
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 Posted: Tue Nov 23, 2021 6:30 am Post subject: Re: Early Euro "Bullet" Fuse: Old (OE) vs New |
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take a neodymium magnet to the metal fuse ends and see if there is anything ferrous. cheap fuses MAY be copper plating over steel. sorta like 'copper' exhaust nuts.
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-dan
60% of what you find on the internet is wrong, including this post.
'87 Westy & '89 Westy both 2.1 4spd
Past projects can be found at--
www.thefixitworkshop.com |
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erste
Samba Member
Joined: March 29, 2013
Posts: 1110
Location: San Francisco
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| Posted: Mon Nov 22, 2021 9:47 pm Post subject: Re: Early Euro "Bullet" Fuse: Old (OE) vs New |
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| DanHoug wrote: |
| you can buy like a 100 pack of off-shore plastic bodied aluminum or worse fuses for cheap but the smart money cruises eBay for NOS ceramic fuses. |
I got Flosser ceramic bullet fuses from this seller on amazon:
https://www.amazon.com/Bullet-Ceramic-Torpedo-Flosser-Germany/dp/B00KO9F1PG/ref=lp_9237165011_1_2
Haven’t installed them yet, but the ones I got are ceramic and look to be copper. |
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Vanagon Nut
Samba Member
Joined: February 08, 2008
Posts: 10495
Location: Sunshine Coast B.C.
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| Posted: Mon Nov 22, 2021 6:19 pm Post subject: Re: Early Euro "Bullet" Fuse: Old (OE) vs New |
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Oh my. Galvanic reaction at its' "best"!
_________________
1981 Westy DIY 15º ABA
(VW Gas I4)
1988 Westy DIY 50º ABA
VE7TBN |
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DanHoug
Samba Member
Joined: December 05, 2016
Posts: 5684
Location: Bemidji, MN
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| Posted: Mon Nov 22, 2021 6:18 pm Post subject: Re: Early Euro "Bullet" Fuse: Old (OE) vs New |
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those are cursed fuses. yeah i woke up numeruous W126 circuits by buffing those stupid things but use in ANY vehicle is folly. the clamping pressure on the fuse ends is not enough to exclude oxygen so the connection corrodes between the wimpy blade with a hole and the fuse point. copper or aluminum, they both suck. sure, they work fine when new... add 35 years then put on your hair shirt.
one of the few uses for a Dremel, put a brass brush in it and polish the vehicle blades for the conehead fuses. then hit each fuse on the wire wheel. you can buy like a 100 pack of off-shore plastic bodied aluminum or worse fuses for cheap but the smart money cruises eBay for NOS ceramic fuses.
_________________
-dan
60% of what you find on the internet is wrong, including this post.
'87 Westy & '89 Westy both 2.1 4spd
Past projects can be found at--
www.thefixitworkshop.com |
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valvecovergasket
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Joined: October 10, 2018
Posts: 1499
Location: pnw
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Vanagon Nut
Samba Member
Joined: February 08, 2008
Posts: 10495
Location: Sunshine Coast B.C.
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| Posted: Mon Nov 22, 2021 5:56 pm Post subject: Re: Early Euro "Bullet" Fuse: Old (OE) vs New |
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Interesting points guys; hadn't thought of the body material difference.
As a side bar, I tested current draw via the fuse terminals.
Approximate values with VOM on 10 Amp scale:
rear defog: 0.07 Amps (seems low. IIRC, only one or two defog wires are working)
wipers, low speed: 3.5 - 5.x Amps
wipers with washer pump: about the same.
Fuse likely failed due to normal wear and tear but I'm not discounting an issue with rear defog given what looks like a low Amp draw.
Neil.
_________________
1981 Westy DIY 15º ABA
(VW Gas I4)
1988 Westy DIY 50º ABA
VE7TBN |
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danfromsyr
Samba Member
Joined: March 01, 2004
Posts: 15345
Location: Syracuse, NY
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| Posted: Mon Nov 22, 2021 3:53 pm Post subject: Re: Early Euro "Bullet" Fuse: Old (OE) vs New |
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what doesn't work well on the new fuses is that they have a plastic body
and if you have a resistance heat demand, that won't blow the fuse. but will melt the plastic and then fail..
well maybe that's a good thing.. 
the OEM were ceramic bodied.
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| Abscate wrote: |
| These are the reasons we have words like “wanker” |
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djkeev
Samba Moderator
Joined: September 30, 2007
Posts: 32987
Location: Reading Pennsylvania
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Ahwahnee
Samba Member
Joined: June 05, 2010
Posts: 10215
Location: Mt Lemmon, AZ
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| Posted: Mon Nov 22, 2021 3:46 pm Post subject: Re: Early Euro "Bullet" Fuse: Old (OE) vs New |
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| I suppose either will work fine - but for things electrical I'd generally take copper over aluminum. |
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djkeev
Samba Moderator
Joined: September 30, 2007
Posts: 32987
Location: Reading Pennsylvania
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Vanagon Nut
Samba Member
Joined: February 08, 2008
Posts: 10495
Location: Sunshine Coast B.C.
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| Posted: Mon Nov 22, 2021 12:42 pm Post subject: Early Euro "Bullet" Fuse: Old (OE) vs New |
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Hi all.
For the wiper/washer/rear defog fuse, '81 Westfalia.
Wipers, washer motor work but I haven't checked the rear defog circuit so....
IF years of normal use caused this fuse to fail....
Is the newer style fuse with different wider fuse material more robust re: long term wear/tear?
Thanks,
Neil.
_________________
1981 Westy DIY 15º ABA
(VW Gas I4)
1988 Westy DIY 50º ABA
VE7TBN |
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