Robs 308 GT4 Clutch Service Adventure Take 2

That spacer or one of the spacers should just slide on to the shaft and rest up against the retainer clip (I think you call that a C ring).

 

if it does go over and past the c clip, are you sure the c clip is seated far enough to let the spacer pass? BUT how did you get the spacer past the clip when the bell housing was removed?

 

go to 27 min

 

spacer stops at clip

 

Rob,

Glad to see you back in Ferrari action, although I do envy your rock star diversion.

I want to take you up on your offer of a searchable GT4 parts book, but I can' figure out how to send a PM on this new site. I tried your old earthlink emall address but it bounced back. I think you have my email address, or can somebody tell me how to send a PM in this site?

 

I think you have to subscribe before you can access some advanced features

 

not sure rob, are you saying the hollow washer space wont seat over the clip, or why would you need a different distance now?

 

I've been giving this some thought.

You say you don't want to take the pressure plate off, but I'm thinking THIS may be your issue. There was a "trick" (no pun intended considering this is Halloween night ) that putting in Daytona pressure plate/friction disc setups would prevent any slippage. Those V-12s and these V-8s can interchange clutches, the drillings and sizes are the same. They (Chinetti) did this for the LeMans GT4. Obviously, because it was meant for considerably more power, the diaphram spring in the Daytona plate is going to be considerably stiffer (and often a criticism of how "manly" the Daytona was to shift). This could be why there's so much difference in effort between your two cars.

As for the snap-ring, there may be a nick, or it could be bent along it's plane, preventing it from dropping into the grove completely, thus preventing the collar to pass over it. If you've re-used the original snap-ring, it may be bent out of round, which would also not fit into the recess of the collar.

I see they put a "cushion" on the coolant pipe. I had the same issue with my GT4...

 

I should've also said that, because it's been so many years, I can't remember, but when I look at your photo with the snap-ring on the input shaft, to me, that gap looks too wide. I'm sure it was much closer (the ends of the snap-ring I mean) when I did my clutch... That's why I'm thinking that it may be not perfectly round and why the collar won't slip over it.

 

my car is on a lift,,, I can send you a pic in 20 seconds tell me exactly what you want

 

I can mic some measurements as well

 

Nice

 

Rob the guitarist ADD in me is kicking in. so you thought the clutch was too hard and you want to change the parts to make it softer and at the same time the bearing spacer wouldn't fit back in and now you took the bell housing off and what?

 

Rob,

I can't remember that job but have done it a bunch in the old days. The race fits in the case and is stopped by a flange of aluminum case. The spacer fits over the C clip. The lower bearing is stopped by the spacer riding over and capturing the clip so it does not grind into the case. That's how I remember it. Use you spacer that you have and assemble then prussian blue the gears to make sure the mating is good and then you are done. Make sure the c lip can be rotated in the shaft land ensuring it is fully seated. It is possible to bung up the c clip so that it rotates too freely and is too big so you can't get the spacer over. If that happens get a new c-clip. If you are just a few thou out you heat the spacer in your toaster oven at 300F for 10 mins then it will slip right over the c clip.

 

Cool. Then according to your diagram demensions the problem is the clip is slightly open like Peter said

 

Robert. I just did this on my 328 and the spacer does fit over the retainer clip. On a GT4, the clip has to be removed before the bell housing comes out and that tends to distort them (it is frustrating to remove that sucker so we lever too hard). Just get another one and refit it. Do torque the large 4 ring nut (get a new one from Ricambi, $40) to 180 Nm.

Really, while you are at this stage, replace the Rear Main Seal. The labor is free at this point. Might as well check the flywheel thickness and the clutch thickness too. Peter can tell you what the specs are. I have forgotten !!!

Good luck GT4 fanatic.

 

Rob where are you????!!!!!

 

Rob, I just sent you an email...

I have very strong feelings that your pressure plate is the culprit in this incident.