Rebuild Help

andycook · andycook's Garage

I am new to the F6 scene and am looking for some help/guidance. I just recently purchased a 1978 911SC with a bad rod bearing. It would start, run, and idle wiothout noise, but would develop a know at any RPM off idle. Thank god they didn't grenade it. I have the engine out and am preparing to rebuild it.
I have read alot of info both here and other sites about the rebuild process. My first concerns are the cylinders and pistons. Do I need to replace them if they were no immediate threat? What about head studs? I am trying to compile a complete list of parts here at Pelican to do the job. After reading the posts about MotorMeister, I am steering clear of them! I was also told I cannot hone out my cylinders. The indiv said they are alloy and not receptive to this procedure. True? And yes Wayne, I have ordered your book.

Anyways, any insight/advice/warnings/thoughts you guys could share would be appreciated. Alot of difference between a Pro Stock Suzuki and a Porsche!! Thanks in advance.

Tim Walsh · Tim Walsh's Garage

I know wayne says this all the time but his book will answer all your questions about your engine

henry bugay · 08-19-2003, 05:21 PM

I am no expert, in fact, a serious rookie, however, I would think that a 1978 engine should receive new pistons and cylinders especially if you are thinking about keeping it. You are talking about 25 years of service and that is a bunch--especially if you are rebuilding and saving so much of that costs--what a great investment the pistons/cylinders are if they are brand spankin new.

Jay Auskin · 08-19-2003, 07:12 PM

Like Tim says, it's all in Wayne's book. And it truly is a bargain for all the money it can save you. But to answer your questions, you just won't know until you have the individual components in your hand, and are able to either measure/inspect them yourself, or have someone else do so for you. I just tore my engine down and the root cause of the failure changed with every part I removed. You just need to take it apart.

Wayne 962 · Wayne 962's Garage

Right-o. I don't mind answering questions on topics, but if it's in the book, I like to have people read it before posting questions...

Take a look at the book - all the answers to your questions listed above are in there (along with how to pick a good machine shop). Let us know if you have any more questions after that...

-Wayne