|
|
Posted by clueless [201.202.29.210] on Tuesday, February 07, 2012 at 17:29:56 :
In Reply to: Re: rear main seal question posted by Kaegi [24.16.253.154] on Tuesday, February 07, 2012 at 17:19:59 :
however, when john minyard rebuilt my 47 I remember him using the neoprene two pc seal and he said the same thing, make sure you buy two or maybe I traded him my block and he rebuilt a later model he had hanging around(senility)
Rear Main Bearing Seals
Engines built before 1951 used a rear main seal that incorporated a flat metal flange with three screw holes in it. These seals required removal of the flywheel to allow replacement of the top half. Later flathead engines used a different neoprene seal design that could be rolled into place in the top half by loosening the crankshaft, much as you would in replacing a top rear main bearing. The two types of seal are not compatible reciprocally, due to block casting differences.
Follow Ups: