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sblack
Joined: 14 Aug 2010
Posts: 21
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 Posted: Mon Jan 10, 2011 2:53 pm Post subject: CorvairEngines-List Digest: 4 Msgs - 01/08/11 |
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WW's cranks didn't break. WW doesn't make cranks. GM does and people have been using them since the early 60s, when WW (and I) were in diapers. To say that his cranks break is bizarre. If people are building new cranks or 5th bearings it is because of WWs research and effort and the cooperation of several high time engine builders who donated their cranks to be magnafluxed.
WW did not work out the guts of the engine. GM did that. The guts other than the cranks work just fine and are readily available from Clarks.
How many flight engines has MM built? How many hours have been flown on these new cranks? Will MM sell you one without having flown it? If so that should set off alarm bells. If they fly it and build up some hrs and can control the quality it might be a very good product, who knows. Nobody yet.
sb
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_________________
Scott Black
Montreal
Jodel F11 O-200 |
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MRus597999(at)aol.com
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| Posted: Mon Jan 10, 2011 7:34 pm Post subject: CorvairEngines-List Digest: 4 Msgs - 01/08/11 |
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You don't get the point. WW uses used parts to build these engines, even nitrided cranks break. WW builds their Corvair engines with 100,000 mile used cranks. And he doesn't guarantee any of them. If WW doesn't stand behind its product then don't build them. WW engines, some with nitrided cranks, broke.... Period! However, MM says use new parts, including rods and NEW cranks. And that is what he is doing. I have seen MM's new engines, you obviously haven't. The guts of these engines involve brand new parts, not reconditioned ones. New is better than used. I've studied WW extensively, talked to him, bought his stuff. As far as he goes it's not bad..In fact I plan on buying some more of his stuff. But MM is raising the bar. If you want to use 100,000 mile cranks, even nitrided ones, go ahead. I will use a new crank that is 2 1/2 times stronger than an original GM crank much less one with milllions of cycles on the crank.. I'll then be able to build an engine without an even heavier 5th bearing. These engines are too heavy as it is.
Mike Russell
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rvickski(at)yahoo.com
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| Posted: Tue Jan 11, 2011 4:37 am Post subject: CorvairEngines-List Digest: 4 Msgs - 01/08/11 |
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Mike,
Don't get me wrong, I like MM, his enthusiasm is almost contagious,
but realize that only when the engine was pushed beyond it's limits or
because of inferior post production workmanship, did bad things happen.
You, and whomever told you, seem to lack understanding, which is
readily apparent by your last three statements. To think that a new
crank will somehow cure the bending forces imposed by a propellor or
imply that properly reconditioned parts are not suitable, defies the
evidence, reason and logic. Saving weight is always a good idea but
balance the notion with cost per pound saved then get yourself a Jab.
Believe what you will, it's your truth, spend what you want, it's your
money but please don't subject the rest of us with your parroted B.S.
Put the time into your project, it's more productive than being a
paper tiger.
BTW I've seen and evaluated the cranks, gears, rods, pistons. All
except the pistons, whiz bang stuff from the conscientious and well
paid craftsman in land of Mao. Not that it cannot be any good, but how
much better is it really? The rest? I reserve judgement.
So, perhaps it's you who doesn't get the point.
Man, I'm almost ashamed to post this publicly, debating with zealots
is usually fruitless.
Roy
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