I just installed a new rear main seal while my transmission is out for a clutch replacement. I am still waiting on the clutch and would like to find out if this new seal is going to leak worse than the last one.

Would i be able to put the flywheel back on and start the engine without the transmission in there. The back of the oil pan is resting on a block of wood. It seems like the motor is balanced pretty well with the mounts in about the middle of the block. I just want to be able to see if this new seal is going to leak before the transmission goes back in it, just in case i have to redo it.

And if i can do this, does anybody know how soon it would take to develop a leak if i am going to have one. Is it something i can see in about 5 minutes of running it, or is it something that takes a couple hundred miles to develop.

and by the way, i installed the seal dry and clean as i was told to do. I just hate to pull that tranny again just for a seal.

Any advice is appreciated.

Thanks,

Adam

 

all I can say is that YOU want it DRY DRY DRY DRY DRY and did I say dry reson for this there is a teflon coating on the new seal that needs to Rub dry on to the crank bonding to it makeing A New SEAL.

 

I ran my engine and checked the seal when i did my clutch. Just make sure your engine fan is'nt hitting the shroud! I put the old flywheel on, blocked the throttle up to about 2300 and let it run for about 15-20 minutes. I checked it it was dry so all went together and is still dry. Also you'll have to rig the clutch interlock to start the truck, don't know if it would ruin the hydraulics pressing the pedal, but i didn't want to chance it.

 

the interlock. that is a good point. never thought of that.

 

Just be careful of the engine fan, i started the truck the first time and the fan was rubbing the shroud scared the poo out of me! i I just reached up under the dash and held the interlock switch and started the truck.

 

Use this trick to avoid messing with the interlock (I know this works on my '01, not sure about earlier years):

1) With the key in the "off" position, access your fuse/relay box under the hood.
2) Pull out the starter relay and pop off the black cover.
3) Re-install the relay without the cover.
4) Put the truck in "N". In your case, you can skip this step.
5) Turn the key to the "on" position.
6) Back under the hood you can start the truck by engaging the the relay by hand.

A mechanic showed me this trick. I use it anytime I need to prime the fuel system (like after a filter change).