fixing leaks

[micheloaks]

Hi I am relatively new to the 'marvels' of air cooled porsche after 20 years of...alfa lancia and FIAT joy.

I have a 71T with 2,2 motor. It is leaking form the rear seal and also a main seal towards the front of the motor. The case has also had a silasitc applied to it externally by PO.

I want to make it relatively drip free...I stress relative. Can anyone point to a good existing thread or make a simple suggestion re: antidote. At the moment I do not want to totally strip the motor...

cheers Michel

[T77911S]

you can replace the front and rear seals. the motor has to come out but not apart.
it may not help though. there is a rubber O ring on the crank inside the motor, i have seen it wear a groove in the case and replacing seals does no good. i had a 2.2E in my 914-6, i could not get the front seal to stop leaking and my brothers 2.4 was the same way. perhaps someone will chime in to confirm/deny this.

the best thing to do is clean the motor very good and find out for sure where the leaks are coming from.

[Henry Schmidt]

If the # 8 main bearing is leaking the engine has to come apart. At that point the case must be evaluated and a proper solution applied.
In some cases that means align bore in all bearings including the # 8 which is generally excluded from the align bore process.
Oversized # 8 main bearings are available but very pricey.
Over the past 30 years I have seen all manner of external repair and none have proven to be "worth the effort".

[micheloaks]

thanks any other tips? I keep hearing about a book by 'wayne' who is this? where can it be bought?

[Aurel]

Originally Posted by micheloaks

thanks any other tips? I keep hearing about a book by 'wayne' who is this? where can it be bought?

Wayne is the owner of this website. You can read the sticky (second thread of the list) for info on his book:
http://www.101projects.com/rebuild.htm

[micheloaks]

DOH!!! have 101. Just didn't connect with the name "Wayne" Thanks