Had a leak on rear main seal…installed new after market rubber seal with instructions to use shimmy feelers provided with seal. Buttoned everything back up and took car for a short spin then put it back on the rack…leaked worse than before from the rear main seal. Took apart again and installed old style rope seal…buttoned back up again and took car for spin again and put it on the rack…still leaking excessively than originally…! What am I doing wrong what would cause leak to be worse than originally…?
To give you all some backgrround…the block is a '54 Olds, V8, 324 ci…Old crankshaft was cracked and three main caps were broken… couldn’t find one rom a '54 engine…so I had to settle with a '55 crankshaft and all 5 of the main caps. This resulted in having to have the block cylinders, the crankshaft and main caps machined…then entire engine line-bored and center-lined…the engine went from .000 standard to under .030…all appropriate internal parts had to be replaced at under .030.
Back to leak…any thoughts as to why the new rear main seals (new after market rubber or old rope style seal) not working…would a different crankshaft and main caps from a '55 engine on a '54 block have any effect…?