Re: In-Car Rebuild

Posted by JeromeSolberg On 2020/8/25 22:15:18
Well, so I was able to get the pan off and the head off.

Getting the pan off was hard, but not that hard. I found that one of the pan screws was missing, when I got the pan off I found that one of the screws had been twisted off a long time ago, the rest of the bolt is still in the block. This is probably one explanation for all the oil leakage around the pan that I've experienced over the years. Everything was/is so "crusty" down there that I had never noticed this before.

I was able to get the head off. The cylinder surfaces look very smooth, the pistons in some cylinders have some noticeable deposits but are not damaged.

I thought I had got enough of the block drained when I started to take the bolts off, but it turns out I hadn't. So I got a little bit of water, which I have vacuumed off and displaced with a healthy dose of WD-40 in the interim.

What I can see is that especially around a few cylinders I have some oil around the valves, probably bad valve guides, and some oil between the cylinders 6 and 7 on the gasket surface. That's not a very good sign, but I expect it actually got there from when I opened the thing up, the surface of the gasket looks fine so I don't think there was any blowby. The head gasket actually looks in really good shape and I could probably use it again if I had to, which I don't plan on doing.

So my next setps are to:

A) Ream the ridges and take out the pistons and inspect
B) Measure the cylinder bores (I have a tool for that)
C) Take out the valves and inspect the valves, seats and guides.
D) Evaluate how to easy-out the broken screw in the pan.
E) Take the exhaust and intake manifolds off.

I am thinking that the Goodson Tool G-534-G is a replacement for the KD-815, it measures .343" x .487" x .336". They have another tool available for an 11/32" pilot: G-533-G .343" x .422" x .336". Any advice on which one of these is correct?

www.goodson.com

Depending on what I find I have found two shops that are willing and experienced to do machine work. They are Tech Machine and Dan's Machine Shop, both in Livermore Ca. There are a couple of other shops I need to visit. Both of these are very backed up, however, though Dan's Machine Shop of said that if I got him the engine unassembled he would do the necessary machine and fitting work for a reasonable price and turnaround, with final assembly up to me. Depending on what I find with the pistons and valves I may end up pulling the engine and going that route.

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