REFLECTOR: Engine compartment oil cooler

[Pat Shea]

Another option is replace the standard Lycoming
vernatherm spacer/washer with a thinner one. This
causes the valve to seat tighter and force more oil
thru the cooler(s). I believe a Continental spacer is
normally used for this purpose - it's about half the
thickness. Lycon supplied one for my engine and the
oil temps are all good. 

Pat (I0-540 w/ front and rear oil coolers)
 
--- Craig and/or Denise Woolston
<cdwoolston at verizon.net> wrote:
> This might be too little, too late, but I recently
> had a friend (RV-6A) who
> had "higher than everyone else" oil temps
> (~200degF).  Recently he went from
> fixed to constant speed pitch and his oil temps went
> up some.  So he thought
> that it was time to add a second oil cooler.  After
> going through the
> trouble of doing that, one day the oil temps sky
> rocketed.  Turned out to be
> the vermilium(sp?) valve, not oil coolers at all. 
> Replaced that, oils temps
> now 175degF.  Has probably been a problem since day
> one on a factory new
> engine.
> 
> Might want to check that first, as it's much easier.
>  I understand the
> technique is to remove it and check like a
> automotive thermosat.
> 
> Craig
> XL5FG
> 
> 


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