looking for the best additive to stop oil leak in rear main seal in 302 ford engine. hope some one can give me some good addvice on this problem. thanks gene
there is no real additive to swell a rope seal.. or even a neoprene seal..
one thing.. with rope seals... some blocks may have a spike in the center of the seal housing on the block/upper side that may prevent you from sliding a the old seal out.. most of the time.. working with brass punches.. (long 1/4 brass rods.. or even brass bolts or toilet tank float ball rod rods.. yes those are sometimes brass.. use a magnet please to verify.
you can pack the ends of the top section of rope seal in.. and install short sections of rope seal to fill the gaps.. pushing in from the ends fattens up the middle.
you will have to use a tube or a big socket to pack the rope seal into the cap... there are videos on this..
most of the time in the past when i had to do mustang rear main seals in the car the transmission had to come out.. so i could get the pan out.. i have set 2x4 x 10" lengths on top of the motor mounts.. after i lifted the motor.. and engine support bar works best to hang the motor while getting the pan off.. less chance of smashed fingers... 1000 Lb. Capacity Engine Support Bar
you do have to drop the engine oil pump to get the pan off.. its two bolts. and the driveshaft. the CLIP GOES UP.. you must crank the engine with the oil filter off and the ignition coil disconnected to prime the pump... oil will shoot out the filter mount .. then you can put the filter back on it and reconnect the coil to start the motor.. its crazy easy to not get the pump drive rod in the holes.
if that is an original motor.. you will want to check for nylon chain sprocket bits in the pan.. and oil pump pickup screen... you will want to look up the bottom and check the timing chain slack..