964 C4 light refurb
#1126
Technical Guru
Rennlist Member
Rennlist Member
Originally Posted by John Mcm
The engine looks relatively clean as I dismantle it. So far a lot of the oil seems to be from the breather.
Somebody used yamabond(?) on the valve cover gaskets and (not surprisingly) it looks like it leaked?
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nabfa1 (03-17-2024)
#1130
Burning Brakes
Any evidence of other leaks there? Or, at the piston cylinder to case junctions? Just curious.
#1131
Rennlist Member
Thread Starter
That's messy. I can well imagine, that was done with the hope it was just the timing cover leaking, and, maybe it was. But as we know, ultimately, it's all those timing box seals that are compromised.
Any evidence of other leaks there? Or, at the piston cylinder to case junctions? Just curious.
Any evidence of other leaks there? Or, at the piston cylinder to case junctions? Just curious.
#1133
#1134
Rennlist Member
Thread Starter
For the DIY garage I think these are better than a 2 post lift. They can be used in a typical New Zealand domestic garage height, don’t restrict parking due to posts and there’s not one single task I can’t do with one e.g. I have dropped the engine/gearbox on my own with this lift. The only thing I would do if I had the chance would be to recess the lift into the garage floor.
#1135
Burning Brakes
For the DIY garage I think these are better than a 2 post lift. They can be used in a typical New Zealand domestic garage height, don’t restrict parking due to posts and there’s not one single task I can’t do with one e.g. I have dropped the engine/gearbox on my own with this lift. The only thing I would do if I had the chance would be to recess the lift into the garage floor.
#1137
Rennlist Member
Thread Starter
Second camshaft out of the engine. It’s so frustrating to have just one lobe pitted as badly as this is. So close to perfect. The good news is that the cylinder honing is still clear and the head looks good.
#1140
Rennlist Member
Thread Starter
As for speed, the figures I have seen indicate that an engine rebuild is 60 hours labour when the engine needs to be removed and refitted in the car. So it’s between 42 and 45 hours of labour to dismantle, clean and reassemble an engine.
My first rebuild was slow because I wasn’t sure how things came apart and was constantly off to the tool shop looking for items e.g. 10mm sockets with a thin wall to take the chain retainer cover off. This time I knew what the sequence was, I had the tools and the various bolts, nuts and connectors didn’t put up a fight. It also helped that the engine owner had removed the exhaust system and headers as that can be time consuming, requiring heat to remove nuts.
Given that the time component of a rebuild is fairly constant, I’m going to document the parts cost with this rebuild so that there is a data point for others to view. I have a degree of sympathy for mechanics where someone goes in and says I won’t pay any more than $X because that’s what is reasonable based on what it cost Y. No two rebuilds are exactly the same and there are ways to save money e.g. don’t replace rod bolts, bearings, chain guides and chains, which are crazy in the long term but you could get away with it if just flicking the car after the build.