[TR] gearbox oil

[ptegler]

It's the detergents that foam!
Hence Castrol HD30wt is a non-detergent oil.

You avoid over filling the crankcase as you do not want the crank 
splashing into the oil at high speed.
Just like water skiing. falling at 40-50mph on the water is like falling 
on concrete. At high speeds, the bottom of the crank slapping the top of 
a pool of oil not only throws oil all over the place, but the impact can 
indeed break a crank!

ptegler


On 12/3/2015 2:48 PM, Pete Arakelian wrote:
> Now, please, correct me if I am wrong, but isn’t the reason for using 
> a gear oil that it resists or doesn’t foam?  I am not talking 
> viscosity, but foaming when the oil is stirred up by moving components 
> – gears spinning in it.  That’s one of the main reasons for not 
> overfilling your engine oil, it will foam, lose pressure and not 
> lubricate properly.  Or don’t we care about foaming in a gearbox?
> Peter
>
>
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Paul Tegler ptegler at verizon.net www.teglerizer.com
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