engine swap?

beer man

Hi, couple ?s just locked my motor up the kf82 would it be smarter to rebuild or replace it with the 16 hp engine? Also is there like a crazy amount of machining to the swap for the clutches to work? Just checking on my options Ive been reading a lot of you guys would switch over from the post ive seen so it must b the way to go, any help would be awesome.

BGW

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evorob

I'm in a similar situation... I just don't want to spend that much $$ on something I only use on the golf course...

beer man

im not lookin to spend a whole lot my self i just dont know what to do about the clutches if they would work off my cart or would i need new ones. I use the cart in the woods so i dont car about top end that much i need power for the sand and trails.

evorob

Get a hold of Scotty B... He knows quite a bit about all the BB swaps

beer man

sounds good thanks. Ive been lookin around and im trying to figure out if im gonna use my old clutch or get a new one, ive seen the one they sell on cpp so im checkin my options. If i use the sleeve they sell i dont no what i would be paying for machining the new crank so im stuck on what to do now

scottyb

Tom at CPP is the BB EXPERT. He can answer all of your Qs if you don't find what you are looking for here on the board just drop him a line

I think it is easier to just get another drive clutch when switching motors. Do your research, check your engine specs to determine the shaft size on the old KF82 and the new motor you are wanting... in some cases an adapter is possible. But consider your old clutch is probably worn beyond serving a new motor well for long... a fresh motor with more HP will likely be too much strain for the old clutch to perform well for long....

$ wise = depends upon your ability and resources ..
Refreshing the orig motor yourself is the least expensive.
A clone motor conversion is the 2nd least expensive.
CPP's BB kit is the easiest solution with the best results

BigBlockMan

Thanks for the support Scotty. The tapered adapter requires very little machining. (can be done with hand tools) A few measurments will determine if any crankshat needs to be trimmed. Some do some don't. Some a little, some alot. For this example lets say crank is 3/4" to long to position clutch properly. Cutting that much off would remove most of the threads. Here's the fix.
1. Determine thread size in crankshaft (most are 3/8-24 some clones are metric)
2. Determine proper drill size for that thread
3. Using hand drill hole 3/4 deeper. Since there is already a hole in shaft the drill will follow that line and remain nice and straight.
4. Cut 3/4" off crankshaft with hacksaw or cutoff wheel, Straighten up cut with a file.
5. Carefully start tap into existing threads and finish tapping to 3/4" depth.
6. Ready to go!!

Even if you have to go to the hardware and buy the Drill bit, Tap, File and Hack saw, $25 would buy them all. Or any dealer, repair center or machine shop will probably do it for you pretty reasonable

BigBlockMan

On another note I have a KF82 shortblock just had rings and valves if you would rather just replace the stocker. Some guys have good luck with the clones, Some not so much.

scottyb

My opinion is the stock motor is the easiest least expensive repair. There were hidden compromises & expenses to the clone install in my experience. PM tom for a price on that refreshed unit before you go for a clone

BigBlockMan

Your 100% correct Scotty.
Getting the clone in and getting a clutch on it is by far the easiest part of the swap. Its all the little details that takes the time. Unless you have done a few swaps plan on doing a few things more than one time. Sometimes what seems like a good plan may not work the way you want it to.