Got in the wrong pew a few minutes ago, got into the newer trucks. I bought a 89 F250 7.3, knowing the clutch was bad. Know nothing about this "double mass " clutch and stuff, how and what do I do? Pray alot? Whers is the best place to purchase flywheel and clutch parts?
Regards
Bill MacParker

 

go with luk single mass clutch conversion kit .i just replaced mine in my 94 f250 4x4 with the luk kit and it made a world of differance in clutch pedal pressure (more like the feel of a gasser clutch) i got mine from carolina clutch.

 

Many thanks. Will proceede
Bill Mac

 

How much time and effort to change out?

 

it took me 10.5 hours to r&r by my self with a el-cheapo trans jack!!! not to bad mine is also 4x4

 

Oh. Thats too much for me because Im doing a headgasket change right now, estimated to take 22 hours in "the book"

 

22 hours? what kind of engine are you working on?


You can go to the Luk clutch website and they list the different clutch packages and prices.

 

Raw power, pull the engine and kill two birds with one stone. It will be easier and faster to do the heads and you can get to the clutch at the same time.

Two mechanic buddies and I swaped a 7.3 turbo into an 86 6.9 in 14 hours first time
we did it.

Check the book, pull and replace engine time and remove and replace heads out of truck. It is faster that way. Also easier on the back.

 

Dave,
Did you remove the x-fer case or pull it with the motor and transmission?
Dave

 

Going to have a Fireman/mechanic do it. I am going on 71 years got better things to do. However I will take your advisemnet under consideration.
Thanks
Bill MacPArker

 

make sure you look at the old clutch, My '90 350 DID NOT have the dual mass clutch. just a possibility. a bad mechanic could replace the regular 1 plate clutch and charge you for a dual mass hopefully your fireman/mechanic is not like that

best of luck Phil

 

I left the transmission and transfer case in the truck. Just unbolt the bell housing from the back of the engine. Flywheel, clutch and pressure plate comes out with the motor.

The only thing is it is a heavy motor and it has to go very high to get it out of the truck. I did it once with a very big engine hoist and once with a chain hoist. I felt much safer with the chain hoist.

With the crank pulley and the water pump installed on the block you have to turn the motor almost sideways to clear the radiator shell. This is when the engine hoist got kinda shakey and had me worried about safety. Remember it is about 1100 pounds you are wrestling around way up in the air.

Bill since you are only doing the clutch I would drop the tranny to do that.
Rawpower was doing headgaskets as well. That is a very hard thing to do in the truck, that is why it takes about 22 hours of wrenching to do. And you are lifting heavy heads in very awkward places and body positions.
When my first reman engine started letting coolant into the cylinders and we had to pull the heads, we looked at the 22 hours in the book for R & R and the tightness in the engine compartment. Then we thought 14 hours to do the swap, which included lots of part swaping from the 6.9 to the 7.3 and some wiring issueswith the 86 truck and the 94 engine harness. Then we looked at R & R heads with the motor out of the truck. Six hours later the engine was on the floor, the turbo was off, intake was off, the heads were off and I was taking pictures of a cracked block / blown head gasket / stripped bolt holes to email to the engine remanufacturer.

 

I just replaced mine with the LUK unit. I paid 610.00 including shipping from CarolinaClutch and paid 500.00 for the R&R which was about 250.00 too much as far as I'm concerned. Since then, I found that SouthBendClutch has a 13" unit (Luk is 12.25") for nearly the same price.

What a change in clutch feel. No pressure with the new single mass flywheel. I feel it was well worth the $$

Lance