Porsche 944S engine rebuild

[williamp]

james said:

Will do. I'll also need to head sort out the head. I'm going to need at least 4 valves, but the seats don't look like they were damaged (although I can't be sure until I've stripped them out and inspected it properly). As I don't want to have to be rebuilding the engine again in a couple of years, I'd like to be as sure as possible that I don't suffer a cam belt snapping, like so many people seem to have done (cylinder heads seem to be in constant demand for just this reason). What is the general consesnsus on when you really do need to change the cam belts? The Porsche recommended interval seems to be a bit long by the sound of things. Or is it that people do low miles over several years, so the belts age? Cheers James

30,000 miles or so. I dont think the age is the problem

[james]

I picked up the 8V short engine on Saturday. And a lovely greasy lump it is too

At first look, it appears to be identical (other than the pistons) to the 16V block I have (which is nice). The pistons that I bought turned up in the post on Friday, and they're in good nick too, so I've now got most of the components that I need to start the rebuild.

I just need to get the valves out of the head in order to check them out and replace the 4 that are definitely dinged, and any others that might turn out to be damaged when I get them out.

Unfortunately I ended up decorating the kitchen instead of doing some useful work on the car this weekend, so progress was somewhat limited

James

[williamp]

james said:

Unfortunately I ended up decorating the kitchen instead of doing some useful work on the car this weekend, so progress was somewhat limited James

Repeat after me: I must try hareder. Just keep telling yourself that its not cold in the garage...

[james]

I know it wasn't cold. In fact, it was quite pleasant in my garage. However, my wife was under the impression that I'd said that I would decorate the kitchen when I got back from "playing".

[ninemeister]

I assume that you have noticed the difference in size of the waterway at the back of the head between the 8V and 16V blocks/heads? Depending on the year of block, you may have to alter the head to suit the narrower hole on the 8V block.

[james]

Well I just checked the head and the block, and the waterways appear to match up pretty well, which is a relief.



Cheers

James