Oil leak
Thread Starter
Cruising
Joined: Jan 2012
Posts: 12
Likes: 3
Oil leak
My 350 was rebuilt many years ago with a after market upgraded crank.I noticed my front seal behind the harmonic balancer has started to leak. Can a stock one fit or do I need to measure crank ? Unfortunately I can't seem to find my crank info.
Racer
Joined: Oct 2017
Posts: 312
Likes: 64
From: Henry county ohio
The front crank seal would be the same, it seals on the harmonic balancer, not the crank.
Be sure to check for grooving on the balancer. If there are no grooves, Use a shoe shine motion to polish it with a strip of 240 grit sandpaper, to give the seal a good smooth surface to seal on.
I would recommend you get the harmonic balancer remove/ install tool from AutoZone (free rental, and not too expensive if you decide to buy it) also be sure to use some oil on the threads of the tool. Everything is better with lubrication. Lol
Good luck.
Jeff
Be sure to check for grooving on the balancer. If there are no grooves, Use a shoe shine motion to polish it with a strip of 240 grit sandpaper, to give the seal a good smooth surface to seal on.
I would recommend you get the harmonic balancer remove/ install tool from AutoZone (free rental, and not too expensive if you decide to buy it) also be sure to use some oil on the threads of the tool. Everything is better with lubrication. Lol
Good luck.
Jeff
Burning Brakes
Joined: Jun 2020
Posts: 881
Likes: 113
Also, when the damper snout has been grooved by seal, several old-line mfgr offer an inexpensive "redi-sleeve" or similar. It's a very thin stainless steel sleeve that slips over the snout and it's lightly tapped into place. Cheap, easy and durable.
https://www.summitracing.com/search/...ll-block-gen-i
FWIW, one-piece rear main seal (Not 2pc) cranks' rear seal surface can be refurbed in same manner.
https://www.summitracing.com/search/...ll-block-gen-i
FWIW, one-piece rear main seal (Not 2pc) cranks' rear seal surface can be refurbed in same manner.
