1. The #1 cylinder is almost toast. Compression test was 61/80......It was 30 deg F when they did the cold leak test. Small displacement cylinders shouldn't be leaking that much though I don't think. Wouldn't bother me at all if it was a big Cont, but it's not. What do you think?
First off you don't do cold differential cylinder pressure tests. Second, Continental has a SB that gives the specifics of a special orifice to test the mechanics "compression" tester, and in many cases the allowable minimum is down around 50/80. In any case a 61/80 on a cold cylinder is not a problem.
3. No record of prop at all except in airframe book #1 (a LONG time ago). No mention of it since then. I would think the prop needs to be overhauled ($500-650)? Opinions? The mechanic said it looked fine, but again, no logs.
As others have said, prop records are usually skimpy and if the prop looks in good shape it probably is. If you are that particular about it, go ahead and overhaul but if I were the seller, I would not make any concessions for it.
1. The engine valve covers are original. The logs say the cylinders were replaced with Millennium cylinder set. The full cylinder sets come with valve covers. This has me questioning the logs some. Are the pistons really new? I have no way of knowing. Millennium valve covers say "Millennium" on them. These say Continental. Not the end of the world since they've got over 600 hrs, but...
I seem to recall that the millennium rocker box covers are different, and not interchangeable with standard Continental covers. I am certain you should be able to identify the cylinders upon inspection, due to the different design and finish of the metal, and probably p/n and markings on the cylinders, probably on the base flange.
Charles
