Hi guys,
I'm new here, but have been lurking for a while. Looks like a great forum with lots of valuable info. Here's some background on me, then my questions. I'm an A&P with IA. Also a Commercial SEL, SES, MEL currently working for a part 135 operation in New England. Used to fly full time and wrench part time, but since pilots are a dime-a-dozen, and A&Ps harder to come by (good ones anyway) I now wrench full time and fly part time. Works for me, as I like wrenching about as much as I like flying.
Anyway, my partner and I bought a project 172E. Sat in a hangar for several years, but airframe's in good shape. TT airframe and engine is about 1300hrs. Got it for a great price, complete with a hangar, spare Cessna heavy duty nose gear, and core C-142-2 engine. We decided to overhaul the engine, since this is intended to be a fix it and flip it project. Disassembled it, sent out all the steel parts and case to be NDTed. All came back yellow tagged. The one problem is the cylinders. I'd like to either overhaul the ones we have, or buy new, but we'll be looking at around $6,000 either way. This is an O-300-D, BTW.
We just don't have the money for that, so we're thinking of doing the cylinders ourselves by honing, lapping the valves, new rings, dimensional checks, inspection and calling it good. My partner says that will constitute an overhaul of the cylinders, but from looking at the SB from Continental they require a whole lot of parts to be replaced, such as guides, exhaust valves, etc. So, my question is: what will be the correct way to sign off the log entry? List the work performed and call it a repair, or is my partner correct, and that SB is not required to be C/W to call the cylinders overhauled? If the lower end meets the requirements of overhaul, but the top end doesn't my guess is that the engine can only be called "repair."
Sorry for the long post. Thanks in advance, and feel free to give me grief!
I'm new here, but have been lurking for a while. Looks like a great forum with lots of valuable info. Here's some background on me, then my questions. I'm an A&P with IA. Also a Commercial SEL, SES, MEL currently working for a part 135 operation in New England. Used to fly full time and wrench part time, but since pilots are a dime-a-dozen, and A&Ps harder to come by (good ones anyway) I now wrench full time and fly part time. Works for me, as I like wrenching about as much as I like flying.
Anyway, my partner and I bought a project 172E. Sat in a hangar for several years, but airframe's in good shape. TT airframe and engine is about 1300hrs. Got it for a great price, complete with a hangar, spare Cessna heavy duty nose gear, and core C-142-2 engine. We decided to overhaul the engine, since this is intended to be a fix it and flip it project. Disassembled it, sent out all the steel parts and case to be NDTed. All came back yellow tagged. The one problem is the cylinders. I'd like to either overhaul the ones we have, or buy new, but we'll be looking at around $6,000 either way. This is an O-300-D, BTW.
We just don't have the money for that, so we're thinking of doing the cylinders ourselves by honing, lapping the valves, new rings, dimensional checks, inspection and calling it good. My partner says that will constitute an overhaul of the cylinders, but from looking at the SB from Continental they require a whole lot of parts to be replaced, such as guides, exhaust valves, etc. So, my question is: what will be the correct way to sign off the log entry? List the work performed and call it a repair, or is my partner correct, and that SB is not required to be C/W to call the cylinders overhauled? If the lower end meets the requirements of overhaul, but the top end doesn't my guess is that the engine can only be called "repair."
Sorry for the long post. Thanks in advance, and feel free to give me grief!