Airboat Lycoming's

Can anyone tell me the difference between the motors on airboats and
the motors in airplanes?
I notice quite a few airboat engines at 1/4 of the price of airplane
engines. I figure if your going to tear down and rebuild anyway, why
spend the extra cash? So far the only difference I can tell is the
certification which brings the cost up.
Lou

In article .com,
"Lou" wrote:

Can anyone tell me the difference between the motors on airboats and
the motors in airplanes?
I notice quite a few airboat engines at 1/4 of the price of airplane
engines. I figure if your going to tear down and rebuild anyway, why
spend the extra cash? So far the only difference I can tell is the
certification which brings the cost up.
Lou

They are very often recovered from wrecked aircraft and MAY have
significant parts (cranks, cams, cylinders, etc.) that are out of
airworthy tolerances.

It is a case of caveat emptor.

--
Remve "_" from email to reply to me personally.

Can anyone tell me the difference between the motors on airboats and
the motors in airplanes?
I notice quite a few airboat engines at 1/4 of the price of airplane
engines. I figure if your going to tear down and rebuild anyway, why
spend the extra cash? So far the only difference I can tell is the
certification which brings the cost up.

The big question is, do they still have the dataplate?

In article ,
john smith wrote:

Can anyone tell me the difference between the motors on airboats and
the motors in airplanes?
I notice quite a few airboat engines at 1/4 of the price of airplane
engines. I figure if your going to tear down and rebuild anyway, why
spend the extra cash? So far the only difference I can tell is the
certification which brings the cost up.

The big question is, do they still have the dataplate?

They may -- or they may not -- there is no requirement for a dataplate
on an airboat engine!

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Remve "_" from email to reply to me personally.

They may -- or they may not -- there is no requirement for a dataplate
on an airboat engine!
I'm guessing that John Smith is asking because the dataplate might be
the difference between being able to have it remanned and be certified
vs. just being another non-certified engine. Kinda like home
'remodels' where they knock down everything but one interior wall, then
build a whole new house around it. By keeping that one well documented
wall original, the builder avoids the tax consequences of construction
a whole new building vs. just 'fixing up' the existing.

In article .com,
"Ben Hallert" wrote:

They may -- or they may not -- there is no requirement for a dataplate
on an airboat engine!
I'm guessing that John Smith is asking because the dataplate might be
the difference between being able to have it remanned and be certified
vs. just being another non-certified engine. Kinda like home
'remodels' where they knock down everything but one interior wall, then
build a whole new house around it. By keeping that one well documented
wall original, the builder avoids the tax consequences of construction
a whole new building vs. just 'fixing up' the existing.

I forgot to mention that some Lycomings have the S/N stamped on the
crankcase, in addition to the data plate.

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Remve "_" from email to reply to me personally.