forklift

Me too, Hey Bob, can you do this for me in the VIR paddock?, haha....that would rock.

chris walrod

You'll have to remove the engine carrier to add the doubler like Bob posted.

One thing that I have noticed which stresses these carriers is when a engine mount (not carrier) nut(s) is stuck or really tough to loosen (with std engine fluid filled mounts). This torque in loosening the nut(s) feeds right into each end of the carrier plate. This isnt so much the case with RS mounts as they are through bolted where one must hold the other end of the bolt while loosening the nuts.

I have bent a few carriers local to the round 'eye' upon loosening the two nuts that fasten the engine carrier to the tub.

viperbob

You can jack up the motor and then remove the engine carrier to do this mod. All in all it is about a 2 hour job.

Sorry Jim, don't think I can do a proper job in the pits. We do have a welder, but just a 110V one for emergency welding...

chris walrod

Tonight I am installing RS engine mounts in the turbo. My left one is COMPLETELY shot / empty / leaking -- I noticed both sides were tired, but the left being so bad that when I lowered the car back onto the ground I noticed the engine clunked downwards about an inch.

Anyhow, while I am at this point, I pulled the engine carrier to have a look for cracks and with the intent to take it into work to let our magicians (fabricators) have there way with it by adding a doubler to add some strength.

After looking at the engine carrier closely, it seems to be already done by the factory. I figured it was just like the NA cars, but not so.

Here are a few pictures showing the differences between the 993 NA and the turbo carriers:

forklift

Bob, thanks, look forward to meeting you at VIR.

Chris, thanks for the pics., interesting.

I just had my engine out of my car in Dec for my trans rebuild and I should have taken care of this....it did look fine though except a little rust. I have had solid motor mounts for the last 3 years and just got solid trans mounts so this will be on the list to do this year. I need to look at my buddy's Cup 964 Cup car to see if his are any different...just curious about that.

Mark in Baltimore

Chris,

Can the Turbo carrier be used on the NA cars? If not, would you be interested in making a run of reinforcements for some of us?

Archilla

The 964 and 993 N/A engine carriers look the same except for two differences: 1) the 964 part has an additional bracket for exhaust mounting (which looks easy to remove); 2) the 993 part has two additional holes in the center of the carrier (circled in the attached pic). Any idea what mounts through those 2 additional holes on the 993 carrier, and if the spacing of all the other holes is the same between the 964 and 993 parts? I'm trying to figure out if a carrier from a 964 will fit a 993.
Thanks,
-Ruben

tj90

I got a gusset kit from rennline. I frankly am surprised how little weld is used to support all that weight and torque. Im not sure how the carrier can be removed without dropping the motor. http://www.rennline.com/newssection.asp?dept=808

MarkD

It can be removed without dropping the engine... we have installed the rennline kit this way... remove a bunch-o-stuff then support engine case, unbolt carrier.

Archilla

Hi Mark,
Among the bunch-o-stuff that needs to be moved, I assume the catalytic converter is one. What small parts should I plan on having on-hand to replace when I do this job, other than gaskets for the cat?
Below are pics of a carrier froma 964 and 993. Are those additional holes in the 993 carrier necessary or will the 964 part just bolt in once the exhaust hangar is removed?
Different topic...I installed the clear stone guards this weekend and the results are really great. Looks far better than the original silver vinyl. FWIW, my old ones came off without heat in one single piece, although the one on the pass side left quite a bit of adhesive.
Thanks,
-Ruben

axl911

The 993 also has two extra holes on the top right arm pictured above for mounting the ignition coils.

MarkD

Ruben, yes, cats have to come off... if your exhaust HW is in bad shape you might want some replacement parts there.
Other than that, nothing comes to mind. The rear engine tin needs to come out also. Ultimately, it is the final piece to get the carrier out.

I have never had the 964 and 993 carrier side by side so I'm not sure. IIRC, that is where the cat hangar bolts in.. not sure if the 964 part will bolt in or not.

Good news on the stone guards! Odd that one side was easy and the other required clean up. Usually both sides are similar.

mike993c2s

Ruben,
Make sure you get new bolts for the connecting the cat to the heat exchanger. You'll need 6 of them. The Gillet and Bischoff ones are different. When Mark, Darin and I did my car, one of the bolts broke and the head sheared off. Good thing we had the spares. And don't forget the accompanying gaskets! Good Luck!

tchubacha

I am thinking about tackling this rennline carrier mod this weekend also while I have everything apart to do the sai flush, dach sport cat, and RS motor mount install. Parts everywhere! And that's just the back of the car! I will let you know how easy or PITA it is.

Bruce SEA 993

I'm going to check mine next time the car is near the lift.

Viper Bob, did not see any picture...did I miss something?