Oil pressure switch? 2.1 engines have a second one, near that area.

Mark

Doug in Calif wrote:
>
> Well, my brand newly rebuilt 89 2.1 has developed a mysterious oil leak at the rear cross member.
> I have looked at it closely to try to determine where it is coming from.
> The oil seems to drip down between the cross member and the aluminum casting that is bolted to the rear of the case.
> I am thinking the  oil pump may be leaking for some reason?.
> I used a new pump, gaskets, and red sealing nuts and its properly torqued.
> I also used aviation permatex on both sides of the gasket behind the oil pump and the between the cover and pump.
>
> Any other places it could be?
>
> Dip stick is not leaking,
> Oil filler tube is not leaking.
>
> Cant really see directly under the pulley but the back of the pulley is dry, I used a new seal
>
> There seems to be a fair amount leaking
> 10 mins on the freeway will produce several droplets all along the bottom of the cross member and aluminum casting.
>
> Thoughts?
> common culprits?
>
> I have built several hundred air cooled engines and never had a leak here.
>
> Thanks,
>
> Doug