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3 minute(s) of a 114 minute read
9-14-2008
I will restart work on the motor once all parts are here, that is more efficient than doing small things 1 at a time. I did receive Verell's square shift shaft seals, they will go in this week. In the meanwhile I did some filling and handsanding the front fenders and rear spoiler, pictures won't show any noticable progress but at the moment I can't lift my own arms anymore, was time I got some workout it had been a while.
9-18-2008
amongst other things, I reamed the valve guides with the 8 mm reamer I got. Seemed like a real tight interference fit because the portruding ends were fine but I removed quite some material were they are held in the head. Then I started lapping the valves in with valve grind paste and discovered 1 inlet valve was seriously bend, unbelieveable. No marks on the valve, no marks on any piston (I threw them all in a box without marking were they came from) but the valve seat showed that this bend valve was there before disassembling. I took the head to the engine builder and he pointed out that the valve guide was not centered. This was the new guide I installed but I'm sure I didn't mess up, no alu or valve guide shavings, it just went in there and I know for sure the old guide was just like this. Upon further investigation 2 more seats are suspect, showing signs of running with a misaligned guide. I have no reason to think this motor was ever opened up before, certainly not in the 11 years I have had it and it ran fine (this means it can only get better after repair...). I don't know, I left the head there and tomorrow I will bring the other head and just let them do what needs to be done, maybe new offcenter seats have to be installed or re cutting the seats will do. No pics because my good old "dark angel" (because it can take clear pictures in the dark with 30 seconds+ shutter time) 2001 Sony 707 finally died, covered in filler, dust, blue, red and grey paint.
9-19-2008
I understand now, but the one seat from the bend valve was really battered offcenter. Bend valve, misaligned guide, don't know what is the cause and what is the result. Anyway, I brought the other head today and all the valves. The old guy I dealt with today and yesterday was the dad of the current owner and assured me they would make everything allright, as he had been building engines since 1957. I suggested removing the severely misaligned guide and rebore the ground bore in the proper direction to fit an oversize guide but he told me it was far easier and safer to just install a new seat. His shop was the only in the country that could make it's own seats, if necessary. I told him to do what needs to be done and just make it good so I won't have to worry the next decades.
