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rfmaster · 07-03-2012, 11:09 AM

Well, here we go.........

As the title says I have to tackle timing cover crankshaft seal replacement. In the past I always had the 'luxury' of having timing cover off the engine, on the workbench when replacing crankshaft seal. Couple of 2x4 cut-offs and some gentle taps quickly persuades seal to seat into its prescribed spot. This time around engine is in the truck and I have a slow drip leak when engine is running. The engine is a fresh, bottom up 350 rebuild - which upsets me even more, with a brand new balancer, stock replacement sheet metal timing cover (Dorman IRC) covering Cloyes double roller timing chain and NATIONAL 9845 crankshaft seal. I do have the right tools to pull harmonic balancer (6-3/4") and press it back on without resorting to hammering.

Question - are there any tricks or tips for removing old seal without damaging sheet metal timing cover? I would like to know what others have used to perform the same job. Thanks!

//RF

07-03-2012, 11:09 AM	#1
rfmaster Registered User Join Date: Oct 2003 Location: OC CA Posts: 1,374	Timing cover crankshaft seal replacement Well, here we go......... As the title says I have to tackle timing cover crankshaft seal replacement. In the past I always had the 'luxury' of having timing cover off the engine, on the workbench when replacing crankshaft seal. Couple of 2x4 cut-offs and some gentle taps quickly persuades seal to seat into its prescribed spot. This time around engine is in the truck and I have a slow drip leak when engine is running. The engine is a fresh, bottom up 350 rebuild - which upsets me even more, with a brand new balancer, stock replacement sheet metal timing cover (Dorman IRC) covering Cloyes double roller timing chain and NATIONAL 9845 crankshaft seal. I do have the right tools to pull harmonic balancer (6-3/4") and press it back on without resorting to hammering. Question - are there any tricks or tips for removing old seal without damaging sheet metal timing cover? I would like to know what others have used to perform the same job. Thanks! //RF __________________ "The Beast" 1975 Chevrolet C20 longbed 350/700R4! with 3inch body lift Dual Flowmasters Super 40's! TBI retrofit completed (2007-07-29) New 383CID (+030) 08-304-8 9.5:1CR x36,005 (2012-12-17)