86 951 Driver

I tried to make a thread like this before and didn't get that much action.

I am trying to see what some commons issues with the 944 turbo trans are. I believe some bearings are going. Trans has supposedly 60,000 miles on it. Leaks oil as well. Quite a bit actually. Could have been run low on oil for a while.

Info to include would be: Year, Mileage, What issue its having/had? and also what kind of noises it made.

Thanks in advance,

Jeff

pigeon

Mine hasn't blown up yet but it makes an awful whine on accel or decel. 86 Turbo, stock, TMU (broken odo when I got it) but believed to be about 87k based on Carfax reporting.

choinga

Mine whines when coasting in low gears but I think it's mostly because my PO put in a Fidanza flywheel. Otherwise, the trans is tight and responsive, no leaks. My car has about 94k.

badcoupe

I have been through a few and fixed a few for others as well. I have proken the R&P once blown one open diff and repaired one messed up gear set from a high speed missed gear by a track guy.

ninefiveone

What is it about the fidanza that makes you suspect it's causing the whine?

docwyte

Flywheels won't whine. They chatter some at idle, that's about it.

MooreBoost

i broke second gear i think from power shifting and going sidways. i have a solid mount so i hear every little noise that the trans, engine, tt and so on make.

Luis de Prat

My 3rd gear pinon cracked a several years ago and I had the box rebuilt locally with new parts from Porsche. Car now has 136K km and counting.

Broken 3rd Gear in 951 Box

theross03

3rd gear syncro (I hope) causes slight scratch going into 3rd. 130,000 miles on car. I assume original trans, 1987 951.

86 951 Driver

This is good info. Keep it coming.

AScholtes

Second gear synchro is bad in mine, but it has 254000 miles on it (not sure that is 100% accurate though as I have no documentation on it prior to my ownership). Other than that, it is just a little difficult to get in reverse when it is cold out, but that may b e resolved by changing the oil.

drew944

Pinion Bearing on gearset side shot out a few needles and gernaded itself. 86 LSD w/ 134xxx ish...Only one I have ever heard of doing that.

86 951 Driver

Just curious if it made any weird noises before it let go?

ninefiveone

Actually, my fidanza is dead silent at idle as well. I'm just curious what made choinga think a flywheel on the motor at the front of the car would cause whine from the tranny at the back of the car. Didn't make any sense to me at all.

drew944

Yeah, it was whining a little bit before it busted and then it got a little louder before it finally busted, but a couple days before that it wouldn't go into 4th or 5th gear. Don't know if the issues were related as I had just gotten the car a few days before.