Rear main seal went bad on the LS

The 1950 deluxe decided that the rear main seal had to go so it’s time to replace it. Build a custom transmission jack for the 4l80e and delete my exhaust scavenging system because I’m pretty sure that was the culprit. Let’s go!

[@paulpoor202]

Damn, looks like a rough day! I built a few turbo engines and ran the crankcase pressure in to the exhaust. I installed a vacuum gauge with a silicone hose to the exhaust port to make sure it supplied vacuum when running. I remember being worried that it might supply too much vacuum but seemed to work fine.Your work always turns out great!

[@mlc_fab]

Pressure in the pan can push that rear seal out. We had one push out in a race engine over a restrictive catch can.

[@lakesideguitars]

I reckon a nice green and gold metal flake paint job on the roof would look sick

[@WrenchnWitWillieG]

Seen a video from Chase bays related to crank case pressure and how LS needs a dual system. One system that vents from the both valve covers into a tank and an another system that vents from the valley cover. Chase bays was explaining that LS engines make a lot of crank case pressure in the valley and the vent from the valve covers isn’t enough. I’ll find the video and link it for you. Could be your problem.

[@snedenwerks]

Thanks man!

[@WrenchnWitWillieG]

th-cam.com/video/sqvv8iWGNwk/w-d-xo.html&si=nkw4wu14ojTu-knk

[@WrenchnWitWillieG]

There you go my man, queued up to the part. Chase explains why a 2 can system is beneficial and explains the set up. I definitely learned something new here.

[@youtubedev0]

that was entertaining. i think your muscles got too big for your shirt. time to size it up, its looking petite on you.

[@snedenwerks]

Haha I’m too broke spending money on car parts to afford a new wardrobe, but thanks