AD 96-12-06 supersedes AD 77-13-03, both of which require the timing to be set to 24 degrees BTC. The engine was originally certified with the timing at 28 degrees BTC. If you install a set of four 0-200 Continental cylinders of p/n 641917 or higher or ECM or Superior cylinders the timing may again be set to 28 degrees.
Does anyone know what brought about this AD?
Dennis
AD 96-12-06
Re: AD 96-12-06
Dennis,
My understanding is that some of the early TCM cylinders had problems with high cylinder pressures (under load, I assume) which caused cracking. So they lowered (retarded) the timing to 24 degrees before TDC to reduce the cylinder pressures. How successful it was I can't say but newer TCM, Superior and ECI cylinders are now to be set at 28 degrees BTDC. That what I have my 0200 at and it seems to work just fine no matter what fuel I have in it. I think my usual CHT is around 300-350 degrees unless I'm climbing hard then it might get close to 400 degrees.
Hope this makes sense..
Mike
My understanding is that some of the early TCM cylinders had problems with high cylinder pressures (under load, I assume) which caused cracking. So they lowered (retarded) the timing to 24 degrees before TDC to reduce the cylinder pressures. How successful it was I can't say but newer TCM, Superior and ECI cylinders are now to be set at 28 degrees BTDC. That what I have my 0200 at and it seems to work just fine no matter what fuel I have in it. I think my usual CHT is around 300-350 degrees unless I'm climbing hard then it might get close to 400 degrees.
Hope this makes sense..
Mike
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jc pacquin
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Re: AD 96-12-06
Mike.....I see on the Legend forum that owners are experiencing a lot of problems with these new 0200 engines. Cylinders going bad with very few hours, etc. and poor response from the manuf. This is an old old engine design. What Gives?! And......do you have more pictures of that nice rebuild you did? Jim.
Re: AD 96-12-06
Hi Jc,
I'm having trouble posting anything since Photo Bucket apparently changed their format. Can't figure out what I'm doing wrong. The lastest pictures are under restoration someplace.
I put ECI nickel cylinders on my 0200 (old style 0200, though) . So far, so good at 50 hours. I'm always a bit apprehensive about using 'aftermarkeparts' as when I was in the diesel trade I saw a lot of aftermarket parts that didn't stand up over the long haul. Especially with the old 2 cycle Detroit Diesel engines but that's another story and my age is showing!! If they have a problem with their cylinders I'd hope Continental would step up the plate and solve the problem (at their own expense) rather than beating around the bush. I used to do a lot of warranty claims in my former life (before I decided teaching was easier than dealing with hairly legged truckers
who wanted to pound knots in my head) and manufacturers will at times go to any expense to try to prove it's the customers fault (wrong oil, wrong fuel, etc. etc.) rather than admit they have a manufacturing problem. Been there...seen that!!
Mike
I'm having trouble posting anything since Photo Bucket apparently changed their format. Can't figure out what I'm doing wrong. The lastest pictures are under restoration someplace.
I put ECI nickel cylinders on my 0200 (old style 0200, though) . So far, so good at 50 hours. I'm always a bit apprehensive about using 'aftermarkeparts' as when I was in the diesel trade I saw a lot of aftermarket parts that didn't stand up over the long haul. Especially with the old 2 cycle Detroit Diesel engines but that's another story and my age is showing!! If they have a problem with their cylinders I'd hope Continental would step up the plate and solve the problem (at their own expense) rather than beating around the bush. I used to do a lot of warranty claims in my former life (before I decided teaching was easier than dealing with hairly legged truckers
who wanted to pound knots in my head) and manufacturers will at times go to any expense to try to prove it's the customers fault (wrong oil, wrong fuel, etc. etc.) rather than admit they have a manufacturing problem. Been there...seen that!!Mike