water pump kit

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Don R
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water pump kit

#1

Post by Don R »

I noticed on ebay there are water pump seal and bearing kits for sale, has anyone tried to rebuild one or is it just better to buy a new pump?
78 GL 1000, 70 CB750 sandcast, 70 CB836 hot rod, 1124cc 750 dragbike resto project.
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CYBORG
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Re: water pump kit

#2

Post by CYBORG »

I rebuilt three of them yesterday. Not that hard, and its really a pretty simple design. I guess you have to weigh the cost of the kit against the cost of the kit, and your time
1978 custom GL1000
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1985 gl1200
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wingrider
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Re: water pump kit

#3

Post by wingrider »

Yep, rebuilt one using that kit. If you are careful, they work good as Cyborg said. You have to be careful with the impeller...it is a fragile little bugger!
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CYBORG
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Re: water pump kit

#4

Post by CYBORG »

Fragile for sure. I dropped one of my pumps, and it broke. So I now have four good pumps, and a small box of pump extra parts :lol:
1978 custom GL1000
1977 custom with 1200 engine
1985 gl1200
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wingrider
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Re: water pump kit

#5

Post by wingrider »

Yep! When I did mine, I had a foam pad directly below the work space...just in hopes if something fell, it would hit that a couple inches away vs the concrete floor. Didn't trust doing it on the bench, so sat on the floor. :)
2002 1800 Wing
2001 Valkyrie Interstate
1978 1200 EFI Wing with Motorvation Coupe Royale sidecar
1977 1200 Wing cafe/bobber project
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scootsx2
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Re: water pump kit

#6

Post by scootsx2 »

I just replaced a water pump last week. Just buy a new pump and the associated gaskets and seals IMHO.
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Don R
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Re: water pump kit

#7

Post by Don R »

The water seems to have stopped leaking since I got it running, the oil not so much. I'm holding off on the pump until I correct the missfire that has defied all my attempts to diagnose. My mechanic buddy thinks it's a sticky valve.
78 GL 1000, 70 CB750 sandcast, 70 CB836 hot rod, 1124cc 750 dragbike resto project.
You don't need a weatherman to know which way the wind blows.
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Toehead
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Re: water pump kit

#8

Post by Toehead »

I don't know the history of your bike, but I would think carb issues are far more likely.
Do you have a topic for the misfire issue?
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Don R
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Re: water pump kit

#9

Post by Don R »

I didn't start a separate topic yet. it's probably time to do that, I wanted to try everything I know how to do before asking. Timing belts are on the way, I didn't want to run it after I discovered what could very well be original belts.
Thanks.
78 GL 1000, 70 CB750 sandcast, 70 CB836 hot rod, 1124cc 750 dragbike resto project.
You don't need a weatherman to know which way the wind blows.
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Whiskerfish
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Re: water pump kit

#10

Post by Whiskerfish »

A lot of time pump leaks will resolve themselves once summer arrives and the bikes get used frequently again. Both of mine leak a bit in the winter but are just fine all summer and have been that way for years. Same with the crossover tubes. When it is cold a bit of seepage there is not a cause for alarm to me anyway.
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Kriss
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Re: water pump kit

#11

Post by Kriss »

The Honda CX500 water pump seal kit fits OK
5x GL1000S, 2x GL1500,
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RB
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Re: water pump kit

#12

Post by RB »

I have lots of pump parts too..even one good bakelite impeller..anyone want to buy it?? Note the metal impellers and Bakelite take different rebuild kits..I think the bearings are different???
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CYBORG
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Re: water pump kit

#13

Post by CYBORG »

That is correct. They take different kits
1978 custom GL1000
1977 custom with 1200 engine
1985 gl1200
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