336 Vs. 337?

[SkyKing]

Bob,

GMAs had discussed the pros and cons of the new VAR cranks on the old board... when all is said and done, it would appear from all of the empiral evidence available in the field that the original cranks in the TCM 360's are probaby pretty much fail-safe, and I'll just bet they're more reliable than the new... as there was a lot of hornswaggling going on between the Guffaws at FAA and TCM. I haven't heard of one failure yet, have you?

So, even with TBO or beyond, without splitting the case, I'd feel comfortable with a good top overhaul or new cyls, and maybe a good going over of the accessory case (oil pump, etc.) and doing what's required as far as other components. When you think about it, 1400 hours isn't much on these engines, and it's the cylinders that take the brunt of the abuse (HEAT). And besides, if you're only doing Part 91 operations, there's no need to get excited about the other kinds. <G>

My nickel.

SkyKing