Push rod tube seal replacement |
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Push rod tube seal replacement |
whitey |
Apr 20 2007, 11:58 AM
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#1
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Member Group: Members Posts: 146 Joined: 8-February 07 From: Coto de Caza Member No.: 7,508 |
I want to replace my push rod tube seals without removing the heads. Do I twist and pull the tubes with pliers? Also, my engine is out of the car and I'm reinstalling the injection, re-sealing and doing a engine clean up...My compression was good at 130 psi with no smoking. I don't really want to pull the heads and cylinders but do you see any real advantage to doing this, (ie. honing the cylinders and removing carbon).
Thanks for your response |
McMark |
Apr 20 2007, 01:58 PM
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#2
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
To replace the pushrod tube seals:
1. Remove the heater ducting tubes (leave the exhaust in palce). 2. Pop off the valve covers. 3. Remove the rockers (11 mm wrench if stock). 4. CAREFULLY use pliers to slide the tubes outwards through the head. Do not crush the tubes. 5. Replace the seals. 6. Reinsert the tubes. Twist as you install to keep the seals from getting damaged. No silicone (RTV), no 'hard' sealants, some 565 Teflon is okay. The pushrod tubes are designed to slide in and out as the engine expands and contracts with heat. 7. Repeat for all 8 tubes. 8. Reinstall the rockers (make sure the pushrods are seated in the lifters correctly). 9. Reinstall the pushrod tube retaining wire (make sure it is installed correctly). 10. Adjust the valves. 11. Reinstall the valve covers. 12. Reinstall the heater parts. |
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