Ah, yes, the elusive OEM nylon water pump driven gear -- fragile, fickle and nearly impossible to find.
I'm in search of said gear (17522-31031) and the only one I've found costs $217 US on eBay.
I found one guy in the US who makes/sells machined aluminum ones for $120 US -- a bargain by comparison.
https://chrislivengood.net/product/gt75 ... pump-gear/
I contacted him through his website but have not heard back yet.
Has anyone found any other sources for OEM or aluminum water pump gears?
Thanks much,
Paul
Water pump gear crisis
- Write2Paul90277
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- Alan H
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Re: Water pump gear crisis
Aluminum? We only have Aluminium here.
Proof that four strokes are over complicated
- BAZ
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Re: Water pump gear crisis
Don't worry always split never fail I have built 150 Kettle engines.
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Re: Water pump gear crisis
Legend motorcycles has them for £70 on ebay
- Write2Paul90277
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Re: Water pump gear crisis
Thanks! I found the listing and ordered one. What a relief to know I won’t be gambling on using my old, cracked gear and wondering when the time bomb will explode!
Trivia question: Is it my failing memory, or do I recall hearing that some guys have removed the water pump altogether and relied solely on thermosiphon action to keep the engine cool?
Curious minds want to know!
Trivia question: Is it my failing memory, or do I recall hearing that some guys have removed the water pump altogether and relied solely on thermosiphon action to keep the engine cool?
Curious minds want to know!
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- Joined: Sat May 13, 2017 6:39 pm
Re: Water pump gear crisis
I wouldn't think so buddy, IMHO the Kettle would boil at the cylinder head