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KL engine clutch adjustment

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trebot
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KL engine clutch adjustment

Post by trebot » Thu Aug 01, 2019 9:11 am

Clutch slips when applying full power. What is adjustment procedure? I know you adjust after taking off top cover.

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Captain Nemo
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Re: KL engine clutch adjustment

Post by Captain Nemo » Fri Aug 02, 2019 7:56 am

The adjustment procedure is pretty simple once you’ve done it. The fwd clutch discs are contained in a cylindrical case which is threaded on the back for adjustment. There is a locking bolt on the back that goes into a series of holes. Remove that bolt and turn the back of the case clockwise so the bolt will line up with the next hole or the second.
The shifter handle should take a fair amount of effort to get into fwd with a pronounced “pop”. Same can be said for reverse, the adjustment for that is the band that goes around the clutch case which has a bolt with a locking nut. Pretty straightforward.
Towards the top of the page above the board index there is a quick link to search topics type in “clutch adjustment” there have been some good postings on the subject that will help.
Boats are to be made of wood, otherwise, God would have grown fiberglass trees.

mcashman53
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Re: KL engine clutch adjustment

Post by mcashman53 » Sun Aug 04, 2019 7:15 am

I have the same issue on my 1950 18ft Sportsman. At approximately 2500 rpm, the engine revs high and if falls out of gear. I adjusted the collar clockwise by 1 hole with no difference, 2 holes with nothing and then 3...still no difference, if anything it got worse and only gets to 2000 rpms before disengaging. I tried going one more adjustment hole and the shaft was very hard to turn by hand, so I backed it off by 1 hole. I have noticed there is some "play" at the shift lever attachment....could that have something to do with the issue? Thanks-Mike

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Captain Nemo
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Re: KL engine clutch adjustment

Post by Captain Nemo » Sun Aug 04, 2019 7:43 am

Cashman, it does sound like there is something going on that is keeping the clutch from staying engaged. I would look closely inside the box to see if something in there has come apart.
Worst case scenario is that the clutch discs are worn out or warped.
Boats are to be made of wood, otherwise, God would have grown fiberglass trees.

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Bilge Rat
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Re: KL engine clutch adjustment

Post by Bilge Rat » Mon Aug 05, 2019 12:00 pm

Cashman (and the original poster)...you're not using a synthetic oil in the engine by chance are you? Synthetics are too slippery for the transmission.
1966 Lyman Cruisette 25 foot "Serenity Now!"
1953 Chris Craft Sportsman 22 foot "Summerwind"

mcashman53
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Re: KL engine clutch adjustment

Post by mcashman53 » Tue Aug 06, 2019 9:37 am

No, straight 30W. But thanks. After tightening the adjustment collar 3 holes, I think the forward clutch plate is worn and will need to be replaced. I spoke to Dave at Van Ness Eng. and he offered great advice and confirmed that is most likely the issue. I may use the boat for the remainder of the season and take the transmission off and send it to them for a rebuild. Anyone else have a suggestion on who to use or how to get it fixed without taking it out of the boat? Thanks-Mike

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Captain Nemo
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Re: KL engine clutch adjustment

Post by Captain Nemo » Tue Aug 06, 2019 10:31 am

From what I have heard Dave does great work, highly recommended. The reverse gear will have to be removed to rebuild, not a big deal. You will need to disconnect the shaft and shift linkage. Also the rear engine mounts and jack up the rear of the engine for clearance to slide it off.
Boats are to be made of wood, otherwise, God would have grown fiberglass trees.

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Bilge Rat
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Re: KL engine clutch adjustment

Post by Bilge Rat » Tue Aug 06, 2019 11:39 am

You might be close enough to Van Ness to drive it there but if you have to ship it, build a 3/4" plywood crate for it. It weighs around 80 pounds, which both UPS and Fed Ex will ship but a cardboard box will not protect it enough during transit. I built one to ship mine out for rebuilding and while the crate came back looking like it was shipped around the world twice, the transmission was protected. I included some hand holes on it to make the UPS guy's job easier.
1966 Lyman Cruisette 25 foot "Serenity Now!"
1953 Chris Craft Sportsman 22 foot "Summerwind"

mcashman53
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Re: KL engine clutch adjustment

Post by mcashman53 » Wed Aug 07, 2019 12:52 pm

Thanks, that's helpful. I think it might be worth the drive in the long run! Mike

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