Hi
I'm in the middle of rebuilding my early 964 engine to install into a 1985 body and I'm carrying out a few upgrades whilst in there.
The reason the engine is being rebuilt is because of a snapped head stud, poor leakdown figures on a different cylinder and lack of history with the engine.
At the moment the engine has been disassembled and I'm in the process of cleaning up the various parts to see what needs replacing and what can go back in. I had my local specialist look at the heads, pistons, cylinders, cams, and rockers - The good news was the P & C's were fine, the bad news was both cams and 5 or 6 rockers had wear and slight pitting on the lobes.
The cams and all rockers will be resurfaced and the profile changed possibly to a DC21 with a 114 lobe centre.
I've been mainly working Wayne Dempsey's Engine rebuild book but this only covers up to the 1989 3.2 engines. I'm just getting round to checking the amount of wear on the valves to see if they need replacing and a quick measure of the crank so I guess my first questions are:
All the measurements in the Wayne Dempsey book are for earlier models - Does anyone know where I can get all the measurements and tolerances for a 964 engine, the first thing I was going to measure was the crank?
Similar question regarding the valves - What measurements and tolerances do I need to take to ascertain whether the valves are reusable or need replacing?
The engine has certainly been fully rebuilt before as the case, pistons, con-rods etc have all had machining work carried out on them.
Thanks
