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BGDion · 04-22-2018, 07:18 AM

I had the same type of noise from my 1967 GMC 3/4 ton after installation of a crate engine. After several transmission removal/installation sessions (where I found the noise disappeared) I discovered it was the flat sheet metal shield which was very slightly contacting the end of the crankshaft (the shield where you are pushing your broomstick against. Remove the starter, then this shield, and look for very small witness marks where the shield is being contacted by the end of the crankshaft..... Solution was to grind the sheet metal plate very slightly to allow more clearance.

04-22-2018, 07:18 AM	#8
BGDion Registered User Join Date: Aug 2011 Location: Rancho Palos Verdes, CA Posts: 7	Re: Bellhousing area tick that follows RPM I had the same type of noise from my 1967 GMC 3/4 ton after installation of a crate engine. After several transmission removal/installation sessions (where I found the noise disappeared) I discovered it was the flat sheet metal shield which was very slightly contacting the end of the crankshaft (the shield where you are pushing your broomstick against. Remove the starter, then this shield, and look for very small witness marks where the shield is being contacted by the end of the crankshaft..... Solution was to grind the sheet metal plate very slightly to allow more clearance.