340 rear main seal

[Kansan]

Good Morning! The rear main seal has a so-so leak on my '73 'Cuda. I recall many years ago I would pull the oil pan on an engine (not necessarily a 340) and change the seal. I this a feasible fix on the 340. In time, I will rebuild the engine, but the time isn't right currently.

Thanks,

Kansan

 

[Chryco Psycho]

Yes it can be done , I have done this in the past .
Check & Make sure the oil sender is not leaking beside the dist First , this bit me in the past .

 

[Kansan]

Check & Make sure the oil sender is not leaking beside the dist First , this bit me in the past .

Good Point, Chryco Pycho....

Any pointers other than the oil sender. Back in the day, they used a rope seal and used a little cork screw device to remove the seal. It it still the same?

Kansan

 

[toolmanmike]

Good Point, Chryco Pycho....

Any pointers other than the oil sender. Back in the day, they used a rope seal and used a little cork screw device to remove the seal. It it still the same?

Kansan

Lisle tools sold it. It was called Sneaky Pete.

 

[340challconvert]

Kansan
check out the articles here and on FABO on the same topic;
340 Rear main seal

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Has anyone installed the Superformance rear main seal SFP9340 from Mancini? Unlike the FelPro, the "ears" appear to be detached. I was wondering how these installed properly? Do they just butt up to the outside of the seal or do you install them in between the ends of the seal? Are they...

www.forabodiesonly.com

340 Rear Main Seal Replacement

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www.forabodiesonly.com

Thread 'Rear main seal leak'

Dec 31, 2024

I have a SB 340 with a leaky rear main. Can this be changed with engine in place without dropping the crank.

• Litchkar
• Replies: 3
• Forum: Engine Issues