Can you clean up the rear of the engine so that all traces of leaky oil are gone. Then run the engine and try to locate where the oil leak is starting from? Look at the oil sending unit for splits too. Unless the oil filer is cracked from excessive pressure the engine can handle it. But oil pressure usually drops when the oil heats up. 70- 80 at both idle and 60 MPH seems abnormal. Can you verify the pressure readings with a mechanical oil gauge? What weight oil is in the engine? Thanks, Gary H. > -------Original Message------- > I have a 440 that just broke a lose and started leaking oil at rear of > engine. I thought it was rear main seal leak and had it replaced. > Mechanic said the old seal looked fine, had silicon(black). It held > about 15 miles and broke a lose again. I bought this car in Little > Rock, Drove it 50 miles on other side of Fort Worth and back to > southeastern NC at 3000 RPM (70 MPH) and it only used 2 quarts of oil. > It shows 70- 80 lbs oil pressure at idle and at 60 MPH. I've never had > that much pressure on any motor I've had. Do you think it could be > leaking at back of block at cam or lifter bore plugs and what do you > think about replacing oil pump with less pressure? If you think the > pressure is too high, what oil pump do you recommend. This problem is > starting to get to be a real pain and expensive. Thanks. > > -- > -- -- -- -- Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks! 1962 to 1965 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html. -- You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group. http://groups.google.com/group/1962to1965mopars?hl=en. --- You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group. To unsubscribe from this group and stop receiving emails from it, send an email to 1962to1965mopars+unsubscribe@xxxxxxxxxxxxxxxxx For more options, visit https://groups.google.com/d/optout.