78 5spd with lots of miles, and I don't know the history. The timing chain broke and did some top end damage that has been repaired and reworked by a reputable machine shop. We were concerned about the bottom end but it seemed fine. We could not get the engine to idle smoothly once I got it put back together and trying everything obvious. We decided to seek professional help. We took the Z to Happy Japs in Cary, NC. Rex said based on a bore scope and the way the engine is running #1 has experienced trauma that is effecting combustion. It will cost me +/- $300 to confirm that is the extent of it and $1900+ (1400 is labor) to repair if that is the end of it. That basically includes #1 piston and a new set of rings. The engine stays in the car so if I understand this right a sleeve will be put in the cylinder. He "thinks" the $1900 will fix it.
I have no doubt of his initial diagnosis, but I have doubts as to whether that will be the end of it. I'm thinking of bringing the car home and either installing a long block from MSA for $2500 or pulling and rebuilding the entire block myself with the help of the local machine shop for about $1500. If I do the long block, I will lose the previous head work. Assembled sounds nice, and I can keep my current engine for reworking later for another project.
If I've already had the head off and then got it running, is it really any big deal to lift the rest of it out and finish the job myself? I've never done this part and would have never considered this four months ago, but with what I've already done, this feels like a no brainer. Am I missing something? Any other ideas or experience on the MSA engine source?
Thanks for the input.
I have no doubt of his initial diagnosis, but I have doubts as to whether that will be the end of it. I'm thinking of bringing the car home and either installing a long block from MSA for $2500 or pulling and rebuilding the entire block myself with the help of the local machine shop for about $1500. If I do the long block, I will lose the previous head work. Assembled sounds nice, and I can keep my current engine for reworking later for another project.
If I've already had the head off and then got it running, is it really any big deal to lift the rest of it out and finish the job myself? I've never done this part and would have never considered this four months ago, but with what I've already done, this feels like a no brainer. Am I missing something? Any other ideas or experience on the MSA engine source?
Thanks for the input.