jason fain
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I have a 1973 J.H #10566 that I had my mechanic build me a 907 engine from a 74 that used the lipseal instead of my original ropeseal engine. He has rebuilt several 907 engines from lotus cars but has never seen one with a machined looking groove near the rear seal. The grove sits just on the inside of the rear seal and we are wondering if this was something the factory did or someones idea of a oil deterent from the rear seal. The rear lipseal does set off the groove enough that it should not cause a oil leak problem but we just wanted to know if anybody had any info on this. He has finished building the engine and is concerned wether or not it was supposed to be there before we install the engine in the car. Any info would be greatly appreciated. Thanks, Jason
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