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Fuelpump rebuild gl1000 (It worked)

Posted: Sat Jul 19, 2008 7:50 pm
by peteybug
Ok here go's I hate things that can't be repaired. I figure if man built it man can fix it so I tried. So far used three differant gasket material's and none worked. I work for a company that manufactures gasket material. None of our stuff would last. Today wife and I were at garage sale and there were two old (not used) mechanical fuelpumps. Got both for 15.00 so heres what I did. Took old wing pump apart. Image Image Image Ground with Dremel so I could drill used a # 36 drill bit. Image After I drilled into pin I took a 6-32 tap and very carefuly taped it out Image then with diegrinder ground off top of pin to release top plate and pumper diaphram. Image next took fuel pump I got at garage sale and ground slits in side Image Image With a chisel hammerd apart Image This was inside Image Next ground top of pin on pump off to get diaphram Image Image Put parts on gl pump used a screw and washer to put back together. Image need to trim after its all together, Took a wood drill bit and drilled starter holes for screws. Image Now trim extra off with sharp blade Image. Will put on bike tomorrow. The other ones I did worked for a day or so butt gas ate the material up. Thats why when I saw these pumps I bought them. They should work as they were made to use with gas. Will keep people posted On weather it works and for how long. (will carry my reg pump with me just in case)

Posted: Sat Jul 19, 2008 9:32 pm
by Whiskerfish
I will be watching with great interest!! I am sure that some of the more common car pumps have rebuild kits. We just need someone in the parts buisness to look over a bunch of them and see which would adapt easiest to our application??

Posted: Sat Jul 19, 2008 10:17 pm
by peteybug
Next week i will go to auto parts store. Have a friend that works there and is willing to spend time looking for me. Told him about what I did and he said to come in. He has 2 wings and was real interested. I just hope this works! Have to be careful with tap I broke one the first time I did one.

Posted: Mon Jul 21, 2008 12:57 am
by peteybug
Installed pump today and it worked great put 50 miles on bike. Not a problem at all. Got home and hooked up pressure gauge in line. It has between 1-1/2 to 2 lbs of pressure. I think this is about right but not sure. Someone can tell me if i'm incorrect. Will keep updated later this week after I ride it more.

Posted: Mon Jul 21, 2008 1:38 am
by heraldhamster
genius and innovative!

job well done.

Posted: Mon Jul 21, 2008 5:25 am
by octane
Brilliant work!
peteybug wrote:.. It has between 1-1/2 to 2 lbs of pressure. I think this is about right but not sure....
The figure in the Honda manual is: 2.4 psi at cranking speed
Volume: 355ml (12 oz) per minute at 600 rpm.


Posted: Mon Jul 21, 2008 10:13 am
by peteybug
Thanks Octane I was using what Clymer manual stated. Ran at 5000 rpm's. Will check it today at what you stated at cranking speed. Hope you didn't notice mess on my work bench :oops:

Posted: Wed Jul 23, 2008 5:22 pm
by heraldhamster
you wouldn't happen to know what model/manufacturer those pumps were you found at the G-sale?

see, now I cleaned my '79 I noticed the weep hole was dribbling fuel. installed my spare, but now I'd like to rebuild the one that was on.

thanks for your time & effort on it peteybug!

Posted: Wed Jul 23, 2008 5:47 pm
by heraldhamster
I've emailed this seller on eBay to see what diameter * these * are...

might/could work... not bad for less than ten bucks. yes, I read his 97% feedback, but everyone who bought one of these has been pleased. and he doesn't take PayPal... risky, I admit.

Posted: Wed Jul 23, 2008 5:50 pm
by Cookie
Heck ya! The real problem is getting good material and you solved that!

Posted: Wed Jul 23, 2008 7:04 pm
by drmudd
Well done, thank you. Post technological and simple!

Posted: Wed Jul 23, 2008 9:18 pm
by Cookie
Now that you are in the fuel pump rebuild business I recommend a name for your company. Peteybuilt.

Posted: Wed Jul 23, 2008 10:24 pm
by roadster5580
Excellent idea

Posted: Thu Jul 24, 2008 10:00 am
by peteybug
Thanks guys. I got a large roll of gasket material from distributor at work. Have some soaking in gas now. Its holding up. If it works out and last I will be glad to share it with anyone who wants to try it. As far as the model of pump i found there are no numbers on them. Thy are prob from a pickup as most cars had smaller ones. Found some rebuild kits for older chevy's and mopars mostly from 60's & 70's and Elderblock (not sure about speeling) makes rebuild kits for there pumps. Still working on where to find.

Posted: Thu Jul 24, 2008 3:35 pm
by Whiskerfish
peteybug wrote: Hope you didn't notice mess on my work bench :oops:
Looks just like my work bench :shock:

Not all of us can be as organized as Octane. I ain't never seen a bike shop with Hardwood floors 8)