How do you install the Fel-Pro 2 rear main seal?
- Do not soak the rope seal in oil or any liquid. Hand fit the rope in the groove of the block and rear main bearing cap.
- Trim the rope so it’s flush with the rear main cap and block.
- Apply a tiny dab (1/8″ or smaller) of RTV to the RMB cap rope seal ends. Apply manufacturer’s recommended sealer to the rear main cap.
Do you install a rear main seal dry?
Some rear main seals need to be installed dry. These seals have a polytetrafluoroethylene (PTFE) coating on the lip seal that needs to be dry and seat to a dry surface on the crankshaft. The seal will transfer a layer of PTFE to the crankshaft surfaces that the lip will ride on.
Why is my new rear main seal leaking?
The most common cause of rear seal leaks is age and/or high mileage. The seal can also leak due to the vehicle being stored for an extended period of time, or from running the engine low on oil. This causes drying and hardening of the seal leading to shrinking, cracking and tearing of the rear main seal.
Why should Teflon seals not be oiled prior to being installed?
Damaged PTFE Sealing Lip Similarly, the use of oil or grease – as with classical oil sealing rings – will result in total failure of the PTFE oil seal immediately after installation.
How hard is it to replace a rear main seal?
Its’ Hard. Replacing a rear main seal is time consuming, requires special knowledge of your vehicle and the use of special tools if you are going to do it correctly and without placing you or your vehicle in danger.
Should seals be greased?
A good rule to live by is no lip seal should run without lubrication for any prolonged period of time. This “dry-running” will cause the remaining grease to thin and eventually break down, resulting in direct contact between the shaft and seal lip. Overfilling is as detrimental to a system as dry-running.
Do you lubricate Teflon seals?
Both the PTFE sealing lip and the shaft surface must be completely dry. Do not use any grease or oil. The shaft may not exhibit any sharp-edged chamfers – if necessary, have the edges removed by an engine expert.