I'm trying to replace the diaphragm in my GL1000 fuel pump a la this thread, but I've got a couple of questions (if I can get this sorted out and working I plan on doing a simplified writeup for anyone interested--there's a lot going on in that thread to try and take in). After I drill out the rivet holding the diaphragm in place, is the wide part remaining at the top of the small post supposed to be removed as well, or is that where I should drill and tap? Also, I'm replacing the diaphragm with one from Marx parts that is mentioned in the same thread; the plates on either side of the OEM diaphragm should be reused to sandwich the new one, right?
questions about rebuilding fuel pump [gl1000/gl1100]
Moderators: CYBORG, Oldewing, robin1731, Forum Moderators
-
- Chrome Member
- Posts: 109
- Joined: Sun Aug 05, 2018 6:02 pm
- Sidecar Bob
- Honored Life Member
- Posts: 7634
- Joined: Sun Jun 11, 2006 10:14 pm
- Location: Kawartha Lakes, Ontario
Re: questions about rebuilding fuel pump [gl1000/gl1100]
Yes, the wide part is what you drill & tap. I found I needed the plates on either side of the original diaphragm plus a small washer under the head of the new screw.
BTW: Mine is still working fine all these years later.
BTW: Mine is still working fine all these years later.
Mr. Honda ('83 GL1100/Dnepr) summer How a motorcycle evolves 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....
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....
-
- Chrome Member
- Posts: 109
- Joined: Sun Aug 05, 2018 6:02 pm
Re: questions about rebuilding fuel pump [gl1000/gl1100]
Awesome, thanks. I'm a little worried about the screw vibrating loose over time; did you put on any threadlocker, or has it stayed tight all this time?Sidecar Bob wrote: ↑Mon Dec 06, 2021 10:03 pm Yes, the wide part is what you drill & tap. I found I needed the plates on either side of the original diaphragm plus a small washer under the head of the new screw.
BTW: Mine is still working fine all these years later.
- Sidecar Bob
- Honored Life Member
- Posts: 7634
- Joined: Sun Jun 11, 2006 10:14 pm
- Location: Kawartha Lakes, Ontario
Re: questions about rebuilding fuel pump [gl1000/gl1100]
I think I used threadlocker but to be honest I can't remember for sure this many years later.
Mr. Honda ('83 GL1100/Dnepr) summer How a motorcycle evolves 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....
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....
- LuckyEddie
- Billet Alum. Member
- Posts: 216
- Joined: Mon Jun 22, 2009 7:42 am
- Location: Middleville, MI.
Re: questions about rebuilding fuel pump [gl1000/gl1100]
I have replaced the fuel pump on both my Wings in the last few years. The part number has been superceded as I would THINK they have upgraded the diaphragm rubber to deal with modern ethenol fuel..
LuckyEddie
1978 GL1000 Supercharged (Avitar)
1976 GL1000
1980 XS1100LG
1982 XV750J
1981 XV920RH
1978 GL1000 Supercharged (Avitar)
1976 GL1000
1980 XS1100LG
1982 XV750J
1981 XV920RH
- tlbranth
- Platinum Member
- Posts: 1636
- Joined: Mon Jan 28, 2008 12:16 am
- Location: carnation, wa
Re: questions about rebuilding fuel pump [gl1000/gl1100]
I tried rebuilding and finally gave up & bought a new one. Couldn't get the rebuild to work.
Terry
Don't own a Vanagon
Don't work at Boeing
Life is good
1999 GL1500 SE
2002 Honda VT750 "ACE"
1975 GL1000
1970 CB750
Don't own a Vanagon
Don't work at Boeing
Life is good
1999 GL1500 SE
2002 Honda VT750 "ACE"
1975 GL1000
1970 CB750
-
- Billet Alum. Member
- Posts: 227
- Joined: Sun Oct 27, 2019 6:38 am
Re: questions about rebuilding fuel pump [gl1000/gl1100]
count me as one who simply bought a new pump. It wasn't crazy expensive (like that $110 petcock or $700 starter for Triumphs), easy to install, and no worries.
Greater Boston MA, USA
Stable as of 26Dec22: '81 GL1100, '10 Bonnie SE, '86 Yamaha Radian, '83 Suzuki GS650L, '14 Moto Guzzi California, '85 Honda V30 Magna
Stable as of 26Dec22: '81 GL1100, '10 Bonnie SE, '86 Yamaha Radian, '83 Suzuki GS650L, '14 Moto Guzzi California, '85 Honda V30 Magna
-
- Similar Topics
- Replies
- Views
- Last post
-
- 4 Replies
- 376 Views
-
Last post by Sidecar Bob
-
- 5 Replies
- 247 Views
-
Last post by 2wheelred
-
- 1 Replies
- 123 Views
-
Last post by Placerville
-
- 3 Replies
- 305 Views
-
Last post by odyssey
-
- 11 Replies
- 420 Views
-
Last post by RB