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Colonel Mosby
Samba Member
Joined: February 23, 2014
Posts: 253
Location: Warrenton, VA
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 Posted: Sun Jul 27, 2014 9:27 am Post subject: Fuel Pump Replacement |
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Well the Colonel sure could use your help. I have a 1970 VW Bus. I believe the fuel pump is failing. I have fuel in the engine oil. I have a light fuel leak around the two gaskets on the fuel pump flange/base. I ordered the parts from Wolfsburg West. Here is what I have. The pump. New flange. Two gaskets. Long push rod. I noticed the original fuel pump has the VW stamp on it. The new one is a Brosol. The orginial has a screw inlet for the metal fuel line and the outlet is a rubber hose to the carb. The new pump will not accept the metal line screw. I was wondering if there are any thoughts on how to proceed. How do you bridge from metal screw inlet on the pump to the metal line? I was thinking now maybe I should get the rebuild kit instead of the new pump? I thought this was going to be very easy. I am sure it still is. Appreciate any suggestions!
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| [img]http://www.thesamba.com/vw/gallery/pix/1236479.jpg[/img] |
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babysnakes
Samba Member
Joined: August 19, 2008
Posts: 7174
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| Posted: Sun Jul 27, 2014 9:31 am Post subject: |
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| Cut the metal line and use a piece of fuel hose for the bridge. |
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 53210
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Sun Jul 27, 2014 9:34 am Post subject: |
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It'd be a shame to cut the end off the threaded fuel line, you may be able to push the nut back a few inches on the line and put a hose on the end. The VW pump is the best you will get but the quality of the rebuild kits lately has been really dissapointing, if you do go the rebuild route try to find an older NOS one.
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Colonel Mosby
Samba Member
Joined: February 23, 2014
Posts: 253
Location: Warrenton, VA
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| Posted: Sun Jul 27, 2014 9:35 am Post subject: |
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| Just behind the distributor I have a brass fitting. You can't see it in the picture. Should I just disconnect the metal line from the pump, disconnect the brass fitting, get a fuel hose, cut, clamp, done? Do you know what size of hose might work. Thank you for the reply. |
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Colonel Mosby
Samba Member
Joined: February 23, 2014
Posts: 253
Location: Warrenton, VA
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| Posted: Sun Jul 27, 2014 9:37 am Post subject: |
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| busdaddy wrote: |
| It'd be a shame to cut the end off the threaded fuel line, you may be able to push the nut back a few inches on the line and put a hose on the end. The VW pump is the best you will get but the quality of the rebuild kits lately has been really dissapointing, if you do go the rebuild route try to find an older NOS one. |
I like your suggestion. Perhaps I could do this until I get the VW pump rebuilt with a NOS. |
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Brian
Samba Moderator
Joined: May 28, 2012
Posts: 8339
Location: Oceanside
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| Posted: Sun Jul 27, 2014 9:39 am Post subject: |
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I think its either 1/4" or 5/16" for the hose
I'll take that pump off your hands though.
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 53210
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Sun Jul 27, 2014 9:47 am Post subject: |
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5.5mm is what VW used but German braided fuel line is dangerous when combined with modern fuels, 1/4" is a little loose but will work, don't skimp on clamps, the worm ones cut into the line, spend a couple bucks more and get the good ones:
When shopping for line get one with a J30R9 rating or higher preferrably with a barrier liner, most FLAPS have it, ask for fuel injection hose.
_________________
Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
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Colonel Mosby
Samba Member
Joined: February 23, 2014
Posts: 253
Location: Warrenton, VA
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| Posted: Sun Jul 27, 2014 9:59 am Post subject: |
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| That is what the guys at WW said. I did not pay enough attention to that threaded part and was not expecting that. I think I can do this though with no trouble. Heading down to the flaps to see what they got. |
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babysnakes
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Joined: August 19, 2008
Posts: 7174
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| Posted: Sun Jul 27, 2014 10:01 am Post subject: |
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| I PM'd you, busdaddy says you should be good with that. |
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Brian
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Location: Oceanside
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 53210
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Sun Jul 27, 2014 10:33 am Post subject: |
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Beware, I was recently told of a new rebuild kit failing in only a couple hundred miles, the end of the pull rod apparently wore away, China strikes again 
I don't know where he got the kit but he's not a cheapskate so it would have been a supposedly good quality one, it's likely all the kits come from the same supplier anyways.
_________________
Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
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kreemoweet
Samba Member
Joined: March 13, 2008
Posts: 4149
Location: Seattle, WA
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| Posted: Sun Jul 27, 2014 10:37 am Post subject: |
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That's not the right rebuild kit for the OP's pump. Some of the parts
might work. If the main diaphragm, which is probably all he needs, works in the VW/Pierburg round-top
pump he has, that would be my choice also
Quality of rebuild kit parts seems to be all over the place. It may be impossible to get the correct fuel pressure with kit parts.
Using the old diaphragm spring with the new diafram might work.
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Last edited by kreemoweet on Sun Jul 27, 2014 10:44 am; edited 1 time in total |
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Tcash
Samba Member
Joined: July 20, 2011
Posts: 12843
Location: San Jose, California, USA
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| Posted: Sun Jul 27, 2014 10:37 am Post subject: Fuel Pumps |
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To link to this post
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| [url=https://www.thesamba.com/vw/forum/viewtopic.php?p=7302183#7302183]Fuel Pumps[/url] |
1968-70 T2 fuel pump VW prt#?
Pierburg VW 3 8289
40 HP fuel pump rebuild kit 111-198-553.
Replacement Airtex 1070
Hello, note there are two styles of pumps out there.
One has a recessed plunger arm. Generator style = 107.5mm (4.25) pushrod.
One has a protruding plunger arm. Alternator style = 100mm (4") pushrod.
There was also a angled pump with a Generator style base produced.
One has a recessed plunger arm. Generator style = 107.5mm (4.25) pushrod.
One has a protruding plunger arm. Alternator style = 100mm (4") pushrod.
Thanks sxuxrxf.
You will also need to adjust the pushrod height and pressure per your repair manual. Good Luck
Link
http://vwparts.aircooled.net/Mechanical-Fuel-Pump-Upright-Engine-w-Alternator-p/113-127-025g.htm
http://vwparts.aircooled.net/Mechanical-Fuel-Pump-1961-65-Type-1-1960-65-T2-p/211-127-025.htm
Last edited by Tcash on Sat Aug 26, 2017 11:22 am; edited 7 times in total |
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Tcash
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Location: San Jose, California, USA
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Brian
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Joined: May 28, 2012
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Location: Oceanside
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Tom Powell
Samba Member
Joined: December 01, 2005
Posts: 4852
Location: Kaneohe
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| Posted: Sun Jul 27, 2014 11:18 am Post subject: |
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I faced a similar fuel line situation. I started at the tank with new hose, used a double barb brass nipple to go through the fire wall. That hose can go to a filter or directly to the carburetor. After an OG fuel pump failure I bought a "made in Brazil" fuel pump at a FLAPS. The instructions were in Portuguese and the inlet and outlet were reversed from the OG pump. Entrada and salida. Keep your hoses out of alignment with the fan belt and away from the distributor and high tension wires. Many Sambans recommend keeping filters out of the engine bay.
Aloha
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wcfvw69
Samba Purist
Joined: June 10, 2004
Posts: 13701
Location: Arizona
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| Posted: Sun Jul 27, 2014 1:04 pm Post subject: |
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| busdaddy wrote: |
| 5.5mm is what VW used but German braided fuel line is dangerous when combined with modern fuels |
Another bus regular posted that you can buy the 5.5 MM braided hose now at the VW dealers. He posted a pic of the hose with the VW/Audi logo on it. You'd wonder if it's a new rubber compound in it for todays fuels? I'm going to go by my VW dealer tomorrow and check it out.
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**Restored German Bosch distributors for sale or I can restore yours**
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 53210
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Sun Jul 27, 2014 1:11 pm Post subject: |
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| wcfvw69 wrote: |
| I'm going to go by my VW dealer tomorrow and check it out. |
Please do, perhaps you can soak a section in known ethanol gas to see how it looks in a few weeks.
_________________
Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!
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Brian
Samba Moderator
Joined: May 28, 2012
Posts: 8339
Location: Oceanside
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| Posted: Sun Jul 27, 2014 1:18 pm Post subject: |
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| busdaddy wrote: |
| wcfvw69 wrote: |
| I'm going to go by my VW dealer tomorrow and check it out. |
Please do, perhaps you can soak a section in known ethanol gas to see how it looks in a few weeks. |
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wcfvw69
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Joined: June 10, 2004
Posts: 13701
Location: Arizona
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| Posted: Wed Jul 30, 2014 11:23 am Post subject: |
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| lustig69 wrote: |
| busdaddy wrote: |
| wcfvw69 wrote: |
| I'm going to go by my VW dealer tomorrow and check it out. |
Please do, perhaps you can soak a section in known ethanol gas to see how it looks in a few weeks. |
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So.. I went to my local VW dealer and asked if they had the 5.5MM braided fuel hose w/the Audi/VW logo on it. He said VW discontinued it 6-8 months ago. He stated there was no demand for it since none of their new cars use it. I'm not this parts guy was the brightest bulb in the light strand but he stated Wolfsburg West sells the same thing. I said, no they don't. The fuel line I saw had the Audi logo on it and WW does not. He then looked puzzled.
I may call a couple of other VW dealers parts departments in the next couple of days just in case this guy was FOS.
_________________
Contact me at [email protected]
Follow me on instagram @sparxwerksllc
40+ years of VW repair, and VW parts and vehicle restoration experience.
The Samba member since 2004.
**Now rebuilding throttle bodies for VW's and Porsche's**
**Restored German Bosch distributors for sale or I can restore yours**
**Restored German Pierburg fuel pumps for sale or I can restore yours**
**Restored Porsche fuel pumps or I can restore yours**
**Restored Porsche distributors or I can restore yours** |
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