Jump to content
Forums Gone... but not forgotten!
Pontiac of the Month

FBIRD69's 1969 Firebird

2024 March
of the Month

  • Rev up your passion for Pontiacs and join our vibrant community of enthusiasts!

    Whether you're a die-hard fan of classic muscle cars or you've got a soft spot for sleek modern models, you've found your home here at Forever Pontiac. Our community is dedicated to celebrating everything Pontiac, from the iconic GTO to the legendary Firebird and everything in between.

    Unlock access to expert advice, stunning photo galleries, engaging discussions, exclusive events, and more!

    Start your Pontiac journey with us today!

    Sign up now! 🏁

Rear seal on 71GTO455HO


Recommended Posts

Does the cam shaft need to come apart to properly replace the seal or can it be ‘hammered ‘ in?

Link to comment
Share on other sites

Tired of these Ads? Register Today!

On 7/22/2018 at 5:37 AM, Robbin said:

Does the cam shaft need to come apart to properly replace the seal or can it be ‘hammered ‘ in?

 

On 7/23/2018 at 11:30 PM, Robbin said:

Rear main seal

No - you can replace the rear main seal without removing the camshaft. Its still a ton of work though.  It does require removing the engine from the car, draining the coolant and oil from the engine, and partially disassembling the motor. You have to remove the water pump, crank dampener, front timing cover, and removing the timing chain (note the timing marks or put the motor to TDC and note the timing marks). Flip the motor over and remove the oil pan. Remove the main caps. Now slow and carefully move the crank upwards with the pistons still attached. You only want about 1/4 - 1/2 inch of movement.

Now you can get to the rear main seal and replace it. Push the pistons and crank back down. Lube the main caps and torque them to spec. Reattach the oil pan. Insure the motor timing is correct and re-attach the timing chain and front timing cover and water pump. Install the crank dampener. Reinstall the engine in the car, remember to add new oil and coolant and double check everything.

Edited by Frosty
Link to comment
Share on other sites

  • 8 months later...

When you replace the rear main seal replace it with a newer one from Butler which is either a 1 or 2 piece seal made of neoprean (sp), as the old rope seal will leak again on you as they all do. The one from Butlers is about $ 40.00 but well worth it. 

Link to comment
Share on other sites

  • 1 year later...

Butler uses the BOP seal. Use the 2 piece BOP seal. BOP themselves admit they have better luck with them than the 1 piece seal they make.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Tired of these Ads? Purchase Enhanced Membership today to remove them!
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.