Putting a new clutch on my old KW and I noticed that the manual does NOT say anything about torque specs for the 8 clutch pressure plate bolts that go to the flywheel. The 8 bolts are 7/16" -14 x2.5" so I'd imagine they can't take too much torque, anybody know the specs?
Also, on the new clutch assembly there are two small blocks of wood wedged between the pressure plate and the throwout bearing. Do I take these out before the motor gets stabbed back in or does that happen when we step on the clutch for the first time?
A few clutch questions
Discussion in 'Trucks [ Eighteen Wheelers ]' started by Bigkenny, Jun 1, 2012.
Page 1 of 2
-
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
-
55 ft lbs on the bolts. Leave the blocks in, they'll fall out on their own when you bolt up the clutch.
-
I belive 75 foot pounds for the bolts in a star pattern and the blocks of wood are there to help with the trans install by keeping the throw out bearing centered they will fall out when you depress the clutch the first time.if you don't grease your own truck you should remove the remote throwout bearing grease line in my opinion.I've seen way to many ruined clutch brakes from over greasing.also will ruin the throwout bearing without grease so make sure you grease it your self to male sure it gets greaswd
-
The old clutch had a grease line but the new one just has a zirc, should be fun to grease that one up!
So it sounds like somewhere between 55-75lbs for the torque? My wrench goes to 150lbs so that should be no problem. -
As truckmechanic said, if you grease the truck yourself, do yourself a favor and run a grease line down through the inspection cover.
-
You can transfer your grease hose from your old clutch to new clutch if it's in good shape. -
my manuall has a chart in the front for torque specs. when they are not specified in the preceeduer part
-
well I use my snapon mg325 3/8" air impact to run the bolts in, run em down till it hammers a couple times and it is gudentite! I do this on a daily basis on clutch jobs, never had a bolt break or come loose(knocking on wood profusely!) just my .02 but i dont know anything, I'm a dumb ole diesel mechanic.
truckmechanic Thanks this. -
The tourque is 55ftlbs blocks hold clutch released for alignment with lineup tool. Leave lineup tool in until u torque clutch then u can remove them.i like removing them so when u go to stab trans. The cluch plates can't move indepently while your moving the head shaft lined up with cluch splines.
-
Got the everything together with the new clutch and have it installed into the truck but I'm having issues. Went to go hook the linkage up then depress the pedal for the first time and the linkage underneath the truck just bent. While looking thru the inspection hole I can see the clutch is in the proper position, the clutch 'forks' are at the correct spot on the throwout bearing and the blocks of wood are still in place. Any ideas on what I might have done wrong?
I'm thinking that the issue has to do with the wood blocks, can I stick a crow bar or pry bar between the bearing and pressure plate to release pressure on the blocks or is that too much pressure in such a little spot? Thanks for the help.
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
Page 1 of 2