I mentioned in another thread that I lost my 72 motor due to my front seal coming out of its retainer, getting chewed up by timing gears and ending up clogging pickup screeen. Is there a replacement seal that fits the stock timing cover??
Yes, there is. Check any of the vendors (TA for example). They have a neoprene replacement. Don't go back to rope (the screen gets clogged by the lint over time, even if you don't have a sudden failure like you did).
Tommy, National seal 450446. Installs through the front. Not sure if it does so without modifications. This is the seal in the TA repro cover.
No, that seal has to be installed from the inside of a stock cover, and you should also resize the hole slightly for a .005 or so press fit. Varies as to how much work this will be, from stock cover to stock cover. Mike re-designed his cover so that it can go in and out from the front. But the stock cover uses this seal, installed from the inside only.
Do you need a seal sleeve put on the damper for the neoprene one to seal correctly? The danper has little ridges in it and it looks like it would lesk with the neoprene seal. This is a 71 Riviera I'm talking about.
Hi, The little grooves are angled so to draw any oil back into the engine but I had a real small amount of leakage with a rubber seal, but I run synthetic oil and I am hearing others say motors tend to leak more oil with synthetic, the rear of the crank has these little grooves also. I put a BHJ balancer on mine that don't have the grooves and the front of the motor is bone dry now but it still leaks some out of the rear main seal, something I have to live with I guess. It leaks with the TA rear seal and it leaks with the Poston seal that has to be trimmed to fit, must be the synthetic oil seeps out of those little grooves, it also seems to leak worse when I drag race it, maybe the launch pushes the oil up into the seal and flooding it with more oil than it can handle. Next time I have the pan off I want to put a baffle in the back of the pan to help keep the oil in the sump. Tom
