Fuelpump rebuild gl1000 (It worked)

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EddieK
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Re: Fuelpump rebuild gl1000 (It worked)

#76

Post by EddieK »

Rebuilt the fuel pump on my 75' as per instructions but using the diaphragm from Marxparts. Pretty straight forward, done with simple hand tools. Pump puts out a good puff of air. Wont be able to fire it up for a few weeks though....love this forum !
1975 GL1000
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Re: Fuelpump rebuild gl1000 (It worked)

#77

Post by Roady »

Image

Awww ... that's nice.
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Barney T Weasel
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Re: Fuelpump rebuild gl1000 (It worked)

#78

Post by Barney T Weasel »

This is such a good forum for GL1000's. Just got mine going after 27 years stored and rode it today for the first time in all that time. She's still got heaps of grunt. The fuel pump needed renewal so got a second hand one here in Oz luckily and it works well but will be repairing the old one when I find some diaphram material. They must sell it in rolls somewhere.... action1
GL1000 '75 model Blue....heading to rat, then cafe racer then full resto...owned 33 years.
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ericheath
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Re: Fuelpump rebuild gl1000 (It worked)

#79

Post by ericheath »

page before from Sidecarbob,

Almost 2 years and the Marxparts diaphragm is still OK.

If you need one they are on this page http://www.marxparts.com/repro%20chevy_fuel.htm (last item at the bottom - still $6)

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5speed
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Re: Fuelpump rebuild gl1000 (It worked)

#80

Post by 5speed »

well..I think I'm in this leaking boat too. lol
tried to start the bike after installing the exhaust and I couldn't get it to start. After attempting for about 15 minutes I pulled a plug and..dry as a bone.
I'm going to pull the fuel line off to the carb to confirm my suspicion but I ordered 2 diaphragms anyway.
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Sidecar Bob
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Re: Fuelpump rebuild gl1000 (It worked)

#81

Post by Sidecar Bob »

Update: 8 years later my rebuilt pump is still working perfectly. I am in the process of replacing the engine and I have removed the rebuilt pump for installation on the new engine.
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Re: Fuelpump rebuild gl1000 (It worked)

#82

Post by 82_GL1100 »

Thanks. I'd pretty much decided to go electric if the parts bike pump didn't work, but it's great to have options.
82 GL1100 Standard 44k miles 83 wheels & forks
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pidjones
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Re: Fuelpump rebuild gl1000 (It worked)

#83

Post by pidjones »

I have a 1100 pump on my '78 - fit fine. I looked into rebuilding the 1000 pump (I still have it), but the phenolic valves appear to be breaking down and leaking. Is there a replacement source for those?
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Re: Fuelpump rebuild gl1000 (It worked)

#84

Post by Dr. Frankenstein »

I'm in the middle of doing this very same rebuild - the most time-consuming part is drilling out that dang center-post; took me almost an hour, going slow - REAL slow - with an electric drill and careful eyeballing, but I got it 5 or 6mm in.... I tried to tap it with a M4x.70 tap, but so far no success. I'll get it...I just have to figure out what it wants...from what I've read that washer on the top is kind of important when putting the top back on, but what size washer is optimum?


I got the diaphragm on the Marxparts page here, down at the bottom - it's almost a perfect fit. You'll probably need to trim it, but it's close:
https://marxparts.com/repro%20chevy_fuel.htm
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Sidecar Bob
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Re: Fuelpump rebuild gl1000 (It worked)

#85

Post by Sidecar Bob »

That's the diaphragm I used 9 years ago (still working fine). It definitely needs to be trimmed to fit the GL1000/1100 fuel pump. Read this:
https://www.ngwclub.com/forum/viewtopic ... 60#p269684
Mr. Honda ('83 GL1100/Dnepr) summer New Engine Thread
The Famous Eccles ('84 CX650EI/VeloUral) winter Never Ending Build (CX500forum)
Click: Colour schematics for all GL1000 & GL1100 and GL1200 standard models plus instructions on how to download the full size version
"A guy with two sidecars can't be all bad." - Cookie
Another guy with two sidecars..... Hmmmm... must be something to that....
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