Hi Graham, G-ELSA had the oil cooler mounted on the gearbox with a 4130
tube mount and it was fine after 800 hours. Someone else is putting that
same mount in his bird now but I forget whom it is.
James Thursby
-----Original Message-----
Behalf Of Graham Singleton
Subject: Re: Oil Cooler
> I am now flying my mono-wheel with the cooling mod's. I mounted the
> oil cooler in front just below the spinner. I used the old classic oil
> cooler and bolted it to the engine. Then made an opening and made smooth
> transitions from the outside. However, I could not provide much of an
> expansion duct to slow the air down but I can say that my oil cooler is
> working very good. Here in Florida it gets a bit warm but my oil temps
> are running a bit cool. In fact I may have to close up the opening a bit
> to raise the temps. I'm running 190F to 195F in that region. On the
> ground, in taxing mode I have seen it 205 to 210F. So that mod
> definitely works.
>
> Jim Nelson
> N15JN
Jim,
Glad to hear it, nice when a bit of logical thinking shows a positive
result.
One thing bothers me slightly, the oil cooler will see all the vibration of
the engine,gearbox,prop etc. I think I would want to mount it on the
cowling, awkward I know but less risky.
We recently had a very close look at the radiator of G-KWIP. Would you
believe it had a small crack in one of the welds. Under pressure it leaked
at a surpising rate in view of the fact that it was almost invisible. I
suspect it was a fatigue crack caused by thermal cycling. That particular
weld was close to a second weld in one of the mounting points which was a
bit heavy compared to the rest of the rad.
Graham
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