LM964

Small leak emanating from bottom of chain cover. Is it possible to fit new cover gaskets without raising/removing engine?

Thanks

AOW162435

While the 993 & 964 exhaust systems are different, replacing chain cover gaskets is the same job on both cars. I've personally changed them on my 993 as well as four other 993s. The exhaust, crossover tube, engine carrier, rear tin, crank pulley and A/C bracket need to come off. Then the chain covers are in plain sight. I rest the engine on two flat-top stands placed under the heat exchangers.




Andreas

LM964

Thanks Andreas. So, you still need to unbolt the engine from the mounts then and lower or raise the engine slightly? Did you write this up as a post a while back?

Thanks..

AOW162435

Correct. With your floor jack supporting the engine case, remove the nuts that fasten the carrier to the mounts. Then lower the engine on to a set of flat-top stands (I use wood spacers such that the drop is no more than an inch or so). Yes, I spoke of this on the 993 forum a few years ago.




Andreas

ffc

This thread is your friend. http://perelet.com/cars/porsche/leaks_thread/1.html

LM964

Thanks guys... will add this to my end of year projects list.

Richard H

I replaced mine without removing the crank pulley although I don't have AC. I had read that on non AC cars the large ali bracket can be removed without taking the pulley off but this was not the case. Rather than take the pulley off I 'double nut' the studs and wound them out. The bracket comes away easily giving easy access to the RH cover. Looking at the images off the AC bracket it looks the same on the bottom half as the non AC one. Before refitting I also ground away the edges on the bracket so it slides past the pulley for easy removal in the future. I used loctite on the studs when refitting them to the case.

LM964

Interesting. I have an engine from a later (A/C) 964 but the rest of the car is non-A/C. The 'empty' bracket just sits there getting in the way. Non-A/C bracket @£200 here in the UK. Will look at doing what you did Richard - presumably some kind of bracket needs to be there (i.e. I can't just remove it and have nothing there?)

Richard H

Pretty sure the engine carrier/mount bracket bolts to the studs. You would also end up with a big gap on the RH side. I'm sure I've seen a post on here where someone cut the top off the ali bracket to turn it into a non AC bracket.

Super90

Here is the AC bracket with the engine carrier removed, and then you can see the engine carrier installed in front of it. That bracket is a key piece of the puzzle....

LM964

Thanks Richard and Robert. Yup, it looks a pretty big casting without some kind of alternative needing to be in place - hence the non-A/C bracket I guess. Whether or not I want to saw off and reshape the A/C bracket instead I'm not sure about. Will think about that one.

Thanks