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1968KdFWagen
Samba Member
Joined: May 16, 2016
Posts: 47
Location: Granville
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 Posted: Wed Jun 29, 2016 7:13 pm Post subject: Bosch 36hp Distributor |
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Can a Bosch 36hp VJU4BR8 be used without the vacuum can? Like a 010 or 019? What would you time it at, if you could use it without the vacuum?
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Ian
"Insanity is doing the same thing, over and over again, and expecting a different result."
1968 Type 1 - Royal Red --- Built: September, 1967
1600 Single Port Engine - F1950480 (VW Exchange) Made January 16th, 1970
113-905-205K
30 PICT-1
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Glenn 
Mr. 010
Joined: December 25, 2001
Posts: 76884
Location: Sneaking up behind you
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| Posted: Wed Jun 29, 2016 7:19 pm Post subject: Re: Bosch 36hp Distributor |
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It's similar to a VJ4BR8 (019). set it to 28-32* BDTC @ 3500rpm with the vacuum disconnected.
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Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
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1968KdFWagen
Samba Member
Joined: May 16, 2016
Posts: 47
Location: Granville
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| Posted: Wed Jun 29, 2016 7:27 pm Post subject: Re: Bosch 36hp Distributor |
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Thanks Glenn!
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Ian
"Insanity is doing the same thing, over and over again, and expecting a different result."
1968 Type 1 - Royal Red --- Built: September, 1967
1600 Single Port Engine - F1950480 (VW Exchange) Made January 16th, 1970
113-905-205K
30 PICT-1
Fahrgest.-Nr. 118096544 |
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ALB
Samba Member
Joined: August 05, 2008
Posts: 3483
Location: beautiful suburban Wet Coast of Canada
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| Posted: Wed Jun 29, 2016 8:21 pm Post subject: Re: Bosch 36hp Distributor |
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Does anyone know how much vacuum it takes to operate the can?
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On a lifelong mission to prove (much to my wife's dismay) that Immaturity is Forever!! |
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j-dub
Samba Member
Joined: November 09, 2003
Posts: 865
Location: Phoenix, AZ
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| Posted: Wed Jun 29, 2016 8:45 pm Post subject: Re: Bosch 36hp Distributor |
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| ALB wrote: |
| Does anyone know how much vacuum it takes to operate the can? |
The Vacuum can on these is very easily adjusted, for the last two performance builds I did I set the can to start advancing at 3 inches of vacuum.
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1957 Oval rag
"POLICE STATION TOILET STOLEN ... Cops have nothing to go on." |
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ALB
Samba Member
Joined: August 05, 2008
Posts: 3483
Location: beautiful suburban Wet Coast of Canada
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| Posted: Wed Jun 29, 2016 8:51 pm Post subject: Re: Bosch 36hp Distributor |
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| j-dub wrote: |
| ALB wrote: |
| Does anyone know how much vacuum it takes to operate the can? |
The Vacuum can on these is very easily adjusted, for the last two performance builds I did I set the can to start advancing at 3 inches of vacuum. |
What dual carbs have you used them with?
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On a lifelong mission to prove (much to my wife's dismay) that Immaturity is Forever!! |
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j-dub
Samba Member
Joined: November 09, 2003
Posts: 865
Location: Phoenix, AZ
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| Posted: Wed Jun 29, 2016 8:53 pm Post subject: Re: Bosch 36hp Distributor |
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| ALB wrote: |
| j-dub wrote: |
| ALB wrote: |
| Does anyone know how much vacuum it takes to operate the can? |
The Vacuum can on these is very easily adjusted, for the last two performance builds I did I set the can to start advancing at 3 inches of vacuum. |
What dual carbs have you used them with? |
45 Dellorto DRLAs
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1957 Oval rag
"POLICE STATION TOILET STOLEN ... Cops have nothing to go on." |
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esde
Samba Member
Joined: October 20, 2007
Posts: 5963
Location: central rust belt
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| Posted: Wed Jun 29, 2016 9:55 pm Post subject: Re: Bosch 36hp Distributor |
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| j-dub wrote: |
| ALB wrote: |
| Does anyone know how much vacuum it takes to operate the can? |
The Vacuum can on these is very easily adjusted, for the last two performance builds I did I set the can to start advancing at 3 inches of vacuum. |
How do you adjust it?
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Bent cranks are silent but gather no moss. I mean, ah, something like that. |
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j-dub
Samba Member
Joined: November 09, 2003
Posts: 865
Location: Phoenix, AZ
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| Posted: Thu Jun 30, 2016 8:37 am Post subject: Re: Bosch 36hp Distributor |
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| esde wrote: |
| j-dub wrote: |
| ALB wrote: |
| Does anyone know how much vacuum it takes to operate the can? |
The Vacuum can on these is very easily adjusted, for the last two performance builds I did I set the can to start advancing at 3 inches of vacuum. |
How do you adjust it? |
Sorry for the dark picture but here is a pic of one in my car, the vacuum line goes to a t fitting then to both Dellortos. You can see the big nut on the vacuum can, take that off then with a flat blade screw driver you can adjust the spring preload. This adjustment will determine how much vacuum it will take before the advance starts. The large nut has a copper sealing ring, make sure this is tight and in good shape when you put it back together or it will leak.
The total vacuum advance is also adjustable with a double nut on the linkage rod, so if you want 8 degrees or 14 degrees, no problem.
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1957 Oval rag
"POLICE STATION TOILET STOLEN ... Cops have nothing to go on." |
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ALB
Samba Member
Joined: August 05, 2008
Posts: 3483
Location: beautiful suburban Wet Coast of Canada
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| Posted: Thu Jun 30, 2016 6:26 pm Post subject: Re: Bosch 36hp Distributor |
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Thanks for the info J-dub
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On a lifelong mission to prove (much to my wife's dismay) that Immaturity is Forever!! |
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j-dub
Samba Member
Joined: November 09, 2003
Posts: 865
Location: Phoenix, AZ
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| Posted: Thu Jun 30, 2016 6:55 pm Post subject: Re: Bosch 36hp Distributor |
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| ALB wrote: |
| Thanks for the info J-dub |
Your Welcome. It is my favorite SVDA type distributor, I am surprised that more people are not using them.
Jeremy
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tasb
The Distributor Distributor
Joined: April 27, 2002
Posts: 6371
Location: Pentwater, Michigan
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| Posted: Sat Jul 02, 2016 7:41 am Post subject: Re: Bosch 36hp Distributor |
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The cast iron VJU(R) 4 BR 8 is also capable of being rebuilt where most of the later SVDA's like the "034" are not good candidates. Depending upon how the BR 8 has been stored, the vacuum canisters are still usable 50 years later.
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Roads Scholar &
1957 Kombi low mileage 36 hp governor equipped M 178 Slow Drag Winner 2014, 2015, 2018
1965 hardtop Deluxe Microbus owned since 1990 M 620 factory 12 v 1500cc
1961 (October)Single Cab- Road Trip Workhorse |
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tasb
The Distributor Distributor
Joined: April 27, 2002
Posts: 6371
Location: Pentwater, Michigan
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| Posted: Sat Jul 02, 2016 7:51 am Post subject: Re: Bosch 36hp Distributor |
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Now that the word is out the price of these VJU 4 BR 8 cores is going to go up  .
There are scads of these 36 hp Beetle distributors out there. I have over 150 cores and I am no where close to cornering the market on them in any sense of the word.
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Roads Scholar &
1957 Kombi low mileage 36 hp governor equipped M 178 Slow Drag Winner 2014, 2015, 2018
1965 hardtop Deluxe Microbus owned since 1990 M 620 factory 12 v 1500cc
1961 (October)Single Cab- Road Trip Workhorse
Last edited by tasb on Sat Jul 02, 2016 11:15 pm; edited 1 time in total |
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raygreenwood
Samba Member
Joined: November 24, 2008
Posts: 21507
Location: Oklahoma City
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| Posted: Sat Jul 02, 2016 11:35 am Post subject: Re: Bosch 36hp Distributor |
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The later Bosch aluminum distributors.....like those used in fuel inected type 4 engines in bus, 411/412/914....and very similar to those used in fuel injected type 3.....and also very similar in casting to the distributor bodies used in carbed engine....and very similar to the 009 casting.....used advance cans that an adjusting screw can easily be added to.
On the 411/412 and 914....some models came with an adjustable advance can. It had a screw with a locknut. Arm # 917. Yes..it was a dual can....advance and retard but the concept is the same.
I have added advance adjustment to numerous advance cans....even the single advance cans. I will post pics by tomorrow. Ray |
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