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 |
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