K141 overall valve lengths question

topconker

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Last part of my K141 motor and see the valve clearance to too high, (0.020+), on both exhaust and intake valves. I've lapped both in but before I close the lid wanted to know if it's worth buying replacement valves. Does anyone have the spec on the valve overall lengths as I can't find it anywhere and found trying to contact kohler impossible for help.
Cheers,
Phil.
 

topconker

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Also it looks like I may have to re cut the valve seat, again does anyone have the specs for this please. angle etc?
 

cpurvis

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Have you done this before? Have the seats been replaced? It's been a long time since I did any valve seats, but it wasn't a simple process back then. The process I followed included a mandrel to guide the stones, three different angle stones and a power tool to spin the stones. There was also a separate tool for grinding valves and dressing the stones. These were not cheap tools, either.

Maybe it's simpler now. Harbor Freight probably sells the whole works for ten bucks.
 

topconker

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It's at times like this that I wish we lived in the USA rather than the UK as we cannot get anything like this here. We have to rely on Amazon, e-bay or other online suppliers. Would love to buy in the USA but the P&P plus import duties make everything very expensive
 

bertsmobile1

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If the seats need to be recut take it along to a mower shop & ask them to do it.
Any motorcycle workshop that works on old British motorcycle will also have the gear in the right size.
That will be a small fraction of the price to buy the gear you need to cut seats.
Should be lots of old gear in the motorcycle section of the internet used sales .
I charge $ 20 ( AUS ) a valve for cutting seats and $ 10 extra for facing the valves .
You can also use car gear, we had an old Repco unit that came from an old service station that closed down .
It did the job quite well but eventually we dug into the pockets for some Neway hand gear which does the job better & faster
 

topconker

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Thanks Bert, probably the best bet but will have to wait for the shut down before I can ask
 
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