I got the pre-buy results the other day, and I'm curious as to your thoughts to these few items that don't surprise me much. I'm wondering if there are any other questions I should be asking.
-Rusty Firewall (I saw that, it will need attention when the engine is done).
-#2 Pushrod housing rusty
-Engine Lord mounts sagging (expected it from the 150 book I got from the site)
-Some surface corrosion in wings (he says "normal amount for California aircraft")
-propeller is corroded and needs paint (I saw that too)
These are the major ones aside from a few minor paperwork discrepencies like 337's and weight and balance not given; but the seller is digging them up and/or getting them so I'm not worried.
He took it for a test flight and said it flies great, and level. I have not flown it since I had a nasty cold the day I looked at it. During this time I requested he pay attention to engine anomolies. He said there were none. The hot oil pressure remained above 40lbs at rpm, and did not vary much cold to warm. I'm inclined to believe that's the best I can ask for checking on a high time engine. If it doesn't drop alot of oil pressure when hot then the main bearings wouldn't be too bad yet. Compressions are all between 75 and 78. Also said #1 comm (the MX-300) is scratchy on transmit, but the other (the icom) worked great, and all instruments are operating fine with no noises.