water pump replacement gl1100

Information and questions on GL1100 Goldwings (1980-1983)
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Joined: Tue Aug 10, 2010 9:28 am
Location: harvard,ill
Motorcycle: 1980 gl1100 standard w/vetter fairing

water pump replacement gl1100

Post by crowesnest3 » Wed Mar 16, 2011 11:40 am

I plan to open up my wing and replace the water pump which is definitely shot ... hopefully, the engine has not suffered any damage from operating with the bad pump. Didn't realize right away the strange knocking was from the water pump. What I did learn was you really need to be aware of how repair work is done. I had once made a comment to a mechanic that I would see a little coolant leaking out of front of engine. Got bike back and it no longer leaked BECAUSE he tapped a bolt right into the weep hole and he stopped the leak! I didn't figure this out till later when started to notice the milkey telltale signs of water inside my valve covers! Anyway engine was running well and strong when I shut her down, knowing the water pump was the culprit. The question I have is a "while your at it" question. I will do my own wrenching and have no qualms about it, already have had front end off including radiator. Once I am in there what other maintenance issues should I address, I expect to replace the timing belts since the front end is exposed, what about oil pump which is also part of same casing that houses water pump? Any test that can be done to assure that it is working as it should? Any thoughts about what else to look at while she is broken down would be appreciated. ALSO, understand that only way to go is with an OEM pump, any thoughts about where to purchase for the best price? The Sandhill Cranes flew over yesterday, winter is ending!

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Re: water pump replacement gl1100

Post by WingAdmin » Thu Mar 17, 2011 12:32 pm

I feel your pain regarding the "fixing" of leaking water pumps with a bolt screwed into the weep hole...believe it or not, that's not the first time I've heard of someone discovering this type of "fix". The fact that it was done by a mechanic makes it all the worse!

Have a look through How to remove and replace your water pump and you'll see a lot of what you're in for. You'll need a new pump (definitely OEM, I just bought mine online, I think I found one for about $130 or so), as well as a gasket kit.

Unless you've got obvious problems with the oil pump, there's no point in replacing it - they don't fail as frequently as water pumps.

Make sure you clean out your crankcase well to get all that coolant out of there!

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