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Home » Public Forums » GMCnet » Rear Main Seal Gasket Replacement... Now what? (Engine Removal)
Rear Main Seal Gasket Replacement... Now what? [message #347218] Mon, 02 September 2019 13:51 Go to previous message
JR Williams is currently offline  JR Williams   United States
Messages: 24
Registered: August 2019
Location: St Petersburg, FL
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Junior Member
Hope everybody is having the best Labor Day. It's a little wet down here in FLA!

So, I'm taking my 95k mile 455 out of my Birchaven for a very leaky rear main seal replacement. Not planning on rebuilding but would like to replace everything I can while it's out. Here's where I could use some much needed advise.

What would you replace while it's on the stand? Bigger oil pump? Paint it lime green with flowers? Do you have a specific part that is a "Must Have?" What brands? Full gasket kit? I'm not the sharpest tool but I am one! Smile

I did a compression test and here's the results...
1. 170, 2. 155, 3. 165, 4. 175, 5. 175, 6. 170, 7. 165, 8. 160 (seemed strange that 2 was not above 160, don't ya think?)

Looking forward to your input.

JR


JR Williams St Petersburg FL 77 Birchaven

[Updated on: Mon, 02 September 2019 14:52]

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