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Harris Samba Member
Joined: June 11, 2004 Posts: 1317 Location: Texas
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6BUG3 Samba Member
Joined: October 05, 2005 Posts: 256 Location: Victorville, CA
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Posted: Tue Dec 13, 2011 2:08 pm Post subject: |
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quick question.
If the fuel pump is opened, does it need to be preloaded again? i'm assuming so. My dad opened it to see if it was still good |
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bill may Samba Member
Joined: August 27, 2003 Posts: 14160 Location: san diego,ca
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6BUG3 Samba Member
Joined: October 05, 2005 Posts: 256 Location: Victorville, CA
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Posted: Tue Dec 13, 2011 2:26 pm Post subject: |
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that sucks. |
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BulliBill Samba Member
Joined: July 09, 2004 Posts: 4561 Location: St Charles, MO
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Posted: Tue Apr 17, 2012 8:18 am Post subject: |
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Yes! If the fuel pump is ever opened up exposing th diaphram, it needs to be "preloaded" when put back together.
I happen to have both VW factory fuel pump "pre-load" tools (the 25hp /36hp tool, and the 40hp onward tool) somewhere in the basement, and I believe (from memory) that the pre-load distance of the pump rod is 36mm on the 36hp tool, and for the later 40hp onward it is 14mm. Double check that someone...
Great to see the nice homebuilt tools!!!
Bill _________________ I'm looking for these license plate frames for my fleet:
Coeur D'Alene - Lake Shore Volkswagen
Mission VW - San Fernando
Thornton VW - Stockton
Thanks for any help! |
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DHMaher Samba Member
Joined: November 16, 2009 Posts: 787 Location: Portland, Oregon
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Posted: Tue Apr 17, 2012 11:01 am Post subject: |
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Can I "rent" your 40hp one? In between moves and currently don't have resources to build a homemade jig. Will buy or rent someone else's though.... _________________ Daniel
"POs, you gotta love them, because killing them is illegal." -Unknown Samba Member
1967 Beetle - Java Green
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youngnstudly Samba Member
Joined: October 21, 2005 Posts: 833 Location: Whine Country (SF Bay area)
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Posted: Thu May 03, 2012 11:09 pm Post subject: |
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I was going to post a pic (months ago) of the jig I threw together, but apparently I forgot to! It's nothing special, just a flat piece of 1/2" thick milled aluminum that I drilled and tapped on the drill press. The bolt and jam nut threaded into the plate make the height adjustable, and yes I forgot to dress the end of the bolt before this pic was taken. Anyways, quick and easy.... just like me.
-Andy
_________________ The economy is in a state of disaster, we have NO time for common sense! |
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BossGuitars Samba Member
Joined: April 25, 2011 Posts: 66 Location: Los Angeles, CA.
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Posted: Fri Nov 02, 2012 11:29 pm Post subject: |
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Here is a diagram / templet my neighbor Andy made up for me when we rebuilt my 36hp pump this last week. Worked great! This could be adjusted from 14mm to 35mm without having to make two different tools.
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Window Pain 472 Samba Member
Joined: April 30, 2014 Posts: 4 Location: United States
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Posted: Wed Apr 30, 2014 10:28 am Post subject: Rebuild kit for Brosol Fuel Pump |
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I just started working on my first VW since the 70s.
I would like to know where i can purchase a rebuild kit for my Brosol fuel pump ??( 65 VW type 1 1200) |
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EverettB Administrator
Joined: April 11, 2000 Posts: 69733 Location: Phoenix Metro
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vdubmyk Samba Member
Joined: October 24, 2008 Posts: 508 Location: Corona, CA
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Posted: Wed Apr 30, 2014 7:51 pm Post subject: |
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I used two of the Brazilian kits that WW sells and both of them put out too much pressure. I even swapped out the original spring and used extra gaskets and couldn't get it right. I bought a NOS kit, preloaded it correctly and all is fine now. _________________ 64 stock bug, 12V (converted 6v unit), 40 hp, all documents even sales contract and dealer window sticker! |
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Volktales Samba Member
Joined: June 21, 2013 Posts: 545 Location: Nanaimo, B.C. CANADA
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Posted: Wed Apr 30, 2014 10:08 pm Post subject: |
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I used one of those Brazilian fuel pump rebuild kits and the pressure was 10 psi. Rechecked what I did and could find no assembly errors. Same thing happened to another guy I knew as well... Was not impressed... _________________ 1974 "Restfalia" Camper 2000 cc EFI 2001-
1970 Beetle first car, rotten, yard art 1985-
1966 Sunroof Beetle, restored 1998-
1964 Ghia, ongoing project 2007-
1962 Beetle Beryl,original paint survivor 2012-
1970 Savannah Beige Beetle 2012-
1992 16v GTI, 100% stock 2006-
1991 "Terseo", wife's old daily 1995-
1969 Chevrolet CST/10 (family owned since new)
1965 Gold Corvair Monza 2021-
1966 and 1965 Monza 2022- |
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EverettB Administrator
Joined: April 11, 2000 Posts: 69733 Location: Phoenix Metro
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Posted: Wed Apr 30, 2014 11:00 pm Post subject: |
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Yes, it's better to use some of the existing parts if possible.
I noticed the pivot piece that the pushrod pushes up and down against sits lower in these kits than an original. This could be the cause of your increased pressure. I have not measured the spring diameter to see if it's different but that is another possibility.
I have an original German pump rebuilt with one of these in my '63 and the pressure was barely too high. I added 2 gaskets and it was fine.
He said he had a Brosol which is Brazilian/Mexican so maybe it will work correctly with that? Always a good idea to check the pressure afterward. _________________ How to Post Photos
Everett Barnes - [email protected] | My wanted ads
"Water is the only drink for a wise man" | "Communication prevents complaints"
Stop dead photo links! Post your photos to The Samba Gallery! |
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Window Pain 472 Samba Member
Joined: April 30, 2014 Posts: 4 Location: United States
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Posted: Thu May 01, 2014 1:44 pm Post subject: Rebuild kit for Brosol Fuel Pump |
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Thank you for the info. |
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Dr OnHolliday Samba Member
Joined: May 11, 2012 Posts: 1215 Location: was Escondido now San Berdoo
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Posted: Thu May 01, 2014 6:17 pm Post subject: |
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Hey, Andy:
Nice drawing! _________________ 1965 Type 1 sunroof Baja / about 70k miles on self-rebuilt '74 1600 and counting / SP heads and aftermarket valve keepers / non-doghouse shroud with external cooler and filter / 1.5 qt extended sump / Weber 32/36 DFAV progressive carb / 009 dist with Pertronix / 1.25 ratio rockers and ball adjusters / 1.5" stainless steel J-pipes and carbon steel baja exhaust |
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Window Pain 472 Samba Member
Joined: April 30, 2014 Posts: 4 Location: United States
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Posted: Fri May 02, 2014 9:25 am Post subject: Re: Rebuild kit for Brosol Fuel Pump |
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Thanks EverettB |
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Window Pain 472 Samba Member
Joined: April 30, 2014 Posts: 4 Location: United States
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Posted: Fri May 02, 2014 11:24 am Post subject: 28 pict -1 carb element |
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Should the choke be completely closed when the engine is cold?? if not closed, do i need a new element or does it need adjustment? |
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otis_bartleh Samba Member
Joined: August 19, 2009 Posts: 1105 Location: Martinez, CA
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Posted: Fri Jun 13, 2014 2:03 pm Post subject: |
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When I got a new fuel pump, a Carter pump, I needed to reset the top the right way, like the cheaper airteks. I didn't think about pre-loading the pump when putting the top back on. My own fault I know for assuming... It was putting out ~3psi iirc.
So, now that I've been running the pump for a few months without having done the pre-load when re-installing the cap, would it be a good idea, or bad idea to pull it back off and set the pre-load properly? _________________ -Adam
'59 Mango Bus
'69 Bug |
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bug-ugly Samba Member
Joined: April 24, 2012 Posts: 164 Location: USA
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Posted: Tue Sep 30, 2014 1:20 pm Post subject: |
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I used that drawing to make a fuel pump jig out of aluminum. It uses three 5/16-24 bolts (not pictured).
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frogman_94 Samba Member
Joined: March 10, 2006 Posts: 116
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Posted: Wed Mar 11, 2015 8:16 am Post subject: |
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After reading this thread and making my own jig, I preloaded the diaphragm and tightened up everything. I installed it on the engine and hooked up the fuel line and it leaked like crazy. I took it off and reinstalled the diaphragm without preloading it. Installed on the engine and hooked up the gas line, no leaks.
It looks like when I preload it there is not enough rubber sticking out to make a good seal. Has this happen to anyone else? |
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