The Forestry Forum

I am putting a new clutch into my 1978 Timberjack 230 with a Cummins 3.9L 4B engine. I was wondering if some members can help me with the torque settings for flywheel to crank torque and clutch housing to flywheel torque and suggested steps to torque.

I am also not sure what to do about Locktight? The previous owner used locktight on the flywheel bolts but I find it hard to tell what colour it was.  I plan to put blue lock tight on the flywheel bolts or should I use red? Due to the tight space between engine and transmission, next time I do the clutch I would plan to get the bolts off without heat using a half inch battery impact wrench (I have engine in-place and transmission hanging from roof with a chain and transmission turned sideways with flywheel side pointed out the right side). I am afraid if I use Red then heat may be needed next time which I would like to avoid). So, hopefully blue is good enough. 

Also wondering about torque for the clutch cover to flywheel? The previous owner did not use locktight on these but lock washers were used. I will use new lock washers. Should I use blue lock tight or are the lock washers and proper torque good enough? 

As some background info, I had a post a few years back about this clutch acting odd and I was asking advise whether to keep using the Skidder or not (link below). Looks like a few years back, one spring popped out the clutch cover, then a second adjacent spring popped out a few days ago. When the second spring popped, it would not go from neutral into gear unless the engine was turned off. With the engine off, I could put it in gear, start the engine with the clutch pushed in (it was trying to move some but clutch was more or less releasing). At least I was able to drive it to a friends, nearby garage for the repair work. The clutch was due anyways. Friction disks were almost done and the release bearing was rough and the pilot bearing had one little rough spot, so it was due. 
 
Thanks for Now

Mountain D 



https://forestryforum.com/board/index.php?topic=118131.0 

https://www.dropbox.com/scl/fi/r61rw2hm09xhx92mc843q/Timberjack200D.PDF?rlkey=raorutvpg7nqzxw6aaddz51pj&dl=0 (https://www.dropbox.com/scl/fi/r61rw2hm09xhx92mc843q/Timberjack200D.PDF?rlkey=raorutvpg7nqzxw6aaddz51pj&dl=0)

Man , I wouldn't use red locktite unless you want to use heat to get them out the next time

That is what I want to hear! I hope to use blue locktight on the flywheel bolts unless someone here think different. 

Blue locktite is all you need, but someone else will have to give the torque spec.
Pressure plate bolts don't need locktite, but new lock washers will do. 3/8 bolts would be fine with 35 lb/ft.  7/16 use 45-50 lb/ft.
4btswaps.com has several threads with torque numbers.