Seal blowing out

[fasteddie]

It seems that I keep blowing out the seal on the crankshaft that is under the flywheel. I had it replaced about a month ago and it has started blowing fuel and oil agian. The guy that replaced it for me said it was OK to run it with the bad seal it would just make a mess of the motor. Just wondering if any of you guys have the same problem? Also if I buy a flywheel puller or do I really need one how hard is it to replace the seal and what could be causing this? Too much crank case pressure or just bad seals. Any and all help is mucho apprecittated!!! Forgot to add it's a 260.

Ed

 

[Myron]

It is not good to have a seal leak, if oil and gas can come out then air can go in which will make the motor lean. Clean the seal area real good with contact cleaner and put red loctite on the outside of the seal and install it.