I'm new to the 928 here so sorry for the newbie questions.

I just recently purchased a 81 928 US 3spd. Some how the previous owner blew up the bell housing(fly wheel cover). The flex plate, and flywheel are still in good shape.

I've already got new lower and upper housing pieces, and a new starter.
How do I get the new pieces in there without lowering the transmission?
I've got the exhaust, and heat shield off. I just don't know where to go from there.
Thanks
Russell

 

Undo the 8mm hex bolt holding the coupler to the torque tube shaft. You ought to be able to remove the two vertical M12 bolts that hold the transmission mounts to the rear crossmember, then undo the four M10 bolts that hold the front of the torque tube to the upper bellhousing. Then you can use a prybar between the differential case and the rear of the rear crossmember to slide the transmission and TT an inch or so rearward.

Then you ought to be able to remove the two upper and two lower M12 bellhousing bolts from the engine block, and remove the bellhousing. DUnno whether the flywheel will need to come off first, if so it uses 9 12mm XZN/triplesquare/cheesehead bolts.

Assembly is the reverse of disassembly.

Here's a link to the proper torques for the above-mentioned bolts:

https://webfiles.uci.edu/redwards/pu...r%203-3-10.xls


EDIT: Crap, this is an automatic. Forgot about the longer TT shaft. Since you're going to throw away the old upper bellhousing, you can probably just cut across its bottom to get it past the TT shaft. But I'm not sure whether you'll be able to get the replacement up in place without dropping the TT and tranny. You might be able to tip the rear of the tranny up enough that you can feed the new upper bellhousing onto the TT shaft then get the bellhousing up in place. Hopefully someone who has BTDT can comment.

Or you can go ghetto and sawzall the bottom of the new bellhousing too. But I can't recommend that.

EDIT #2: See post #22 in this thread for the general approach and some pics:

https://rennlist.com/forums/928-foru...tos-added.html

 

I would rather pull the engine (about 4 hours) than to pull the trans, not long to remove, but can be a bear to reinstall-at least for me it was. Just my .02
Mike

 

This is a new one to me. I'd try unbolting the tranny and sliding it back.

It's more than 4 hours to pull the engine especially if it hasn't been pulled in a few years and/or oyu're doing it for the first time.

 

After getting everything out and taking a peek at the damage, it turned out to be worse than i thought. The place where the bolts on the bell housing mount to the block, well.....
The bolt hole on the top driver side was missing half of the hole. So you just see half the bottom half of the threads. The bottom two bolt holes are completely missing. Must of snapped off with the rest of the bell housing.

What I was originally told what had happened was that the guy was revving it in neutral and the bell housing just exploded into about 10 pieces. Lower and upper.

After pulling the torque tube, i found out that the driveshaft was bent up pretty bad and the bearing that aligns the driveshaft inside the torque tube looked like a square instead of a perfect circle.

I do have replacement pieces for all the parts except for where the aluminium broke off from the block.

I'm not a mechanic by all means, so correct me if I said something wrong. Everything I've learned has been from my dad, or off the internet.

I really don't want to just dump a few G's into this car to get it running and driving condition. What would you all suggest doing? Selling and settle with losses if any for how cheap i got the car? Or take it to a mechanic who can fix this without going completely broke haha?

The car was running just two tuesdays ago, until the bell housing broke into a bunch of pieces...
Thanks for the help

Russell

 

Post some photos. That will help people make useful recommendations.

Dave

 

If your goal is to get it running and sell it, skip the foreplay and sell it, you will recover little for your effort and expense.

If you want to keep it and enjoy 928 ownership, get used to dropping some coin.

 

I would say find a good used engine for $1500-2000 (check ebay) and swap it out. Or, you can get a block from Mark at 928 Intl and go to town tearing it apart and building a new engine. Have Constantine make you a new driveshaft for and get his super bearings for your TT. Can't think of a better way to learn about your car. NOw while you are at it you'll want to replace every rubber bit, hose, sensor, get bolts cad plated . . . . . . It's a sickness really.

Here's an engine on ebay that might work or perhaps you could make one car out of two. I am not up to speed on old 928's and engine compatibility.

http://www.ebay.com/itm/Porsche-928-...US_Cars_Trucks

no affiliation with the seller.

 

did you find the cause of the bell housing issue?

so far you need a block, bell housing, torque tube bearings and more.........your way over a couple of G's already and that's you doing the work

hows the rest of the car? if its a great example then maybe worth fixing......if not, then you may want to cut your losses now

 

I've got a new bell housing, torque tube, driveshaft, and the bearing. I also have an almost complete engine from a '80 euro model.
If I was to sell the car what would be a reasonable price? I would include all the parts(not including the extra engine), and a set or flat disk rims.
The car needs paint. Interior is 7/10. I have a the receipts dating back to 1982. Everytime the 1st owner put in gas, how much, mpg. Everytime it got new parts. When it was waxed. When it got oil changes. The 1st owner had it till 2000 and documented everything that was done to this car. The owners after him didn't do that as much.
Almost everything is original in this car.

 

50 bucks without pictures

 

If you have all the stuff then dive in and fix it. It's only time at this point.

 

The owner of this car posted about it on one of the FB 928 pages.

Prior to the bellhousing exploding, the engine block bad a crack in the lower girdle. The total failure was likely cause by the repair work that was done.

At this point you need to replace the engine, bellhousing, and torque tube.

Contact Mark Anderson with 928intl.com

 

Oh okay, guess he made sure not to tell me that. Well im not at too much of a loss, i got the car for under $1000. Thanks for the input!
Russell

 

Run, run away as fast as you can.... you are not emotionally committed to this car, no fond memories, best to just PUNT ... At this point it sounds like you would only be out the $1,000, trust me on this you would never ever be that close to breaking even on this car again....