Peter Dohm wrote:
"Capt. Geoffrey Thorpe" The Sea Hawk At Wow Way D0t C0m wrote in message
...
"jan olieslagers" wrote in message
...
schreef:
http://www.edmunds.com/insideline/do...ticleId=124553

2L TDIO, All aluminum block/head, boosted, intercooled, 258 pound-feet
of torque @ 1,800 rpm. Probably a terrible engine for a car. But for
an airplane....

Haven't found the weight yet.
Not the first I hear about it. As I understand it is a modification of
their petrol boxers so the weight should be comparable.
I thought GM had killed the "gas engine converted to a diesel" market.

The typical 10,000 mile (or so) TBO didn't go over well with the public.

I've heard many times about how bad they were, but I still don't know the
actual cause or just what tended to break or wear out. The only specific
that I can personally recall was that the air intake placement made it
possible to injest water on some models. I believe that also heard that
the rings and cylinders had a shorter than normal life, anound 120K miles,
but only heard that from one user. So any further enlightenment is welcome.

Peter



Most of the early 350 based models had crankshaft failure problems. GM
revised the cranks on at least two occasions with little success. After
an intensive investigation it was determined that the engine block main
bearing webs were flexing and cracking. This allowed the crank to bend
excessively, resulting in crank breakage. Once the cylinder blocks were
modified there were few other mechanical/structural problems. By this
time the engines had already acquired their reputation for unreliability.