Crank seal still leaking?

[SHOGUN88]

I just replaced my crank seal for the second time and it still seams to be leaking (used pipe to install), just a few drops a day but that burning oil smell is really starting to **** me off. Could it also be the pan seal? it is dripping right at the bottom of the timing cover.

 

[93rev2sev]

You really wont know without crank pulley and lower timing gear cover removal. 1/2 hour procedure...

 

[itwonder]

Since you mention burning oil smell, that is frequently the rearmost cam seal. They need to be installed with a thin coat of RTV around the outer perimeter to prevent leaks. Pull the camshaft sensor and see if there is any oil in the bottom of the cavity. The oil pump gasket can also leak, usually near the high pressure outlet which is on the forward side near the top of the lower timing cover. I've never use a pipe to install the crank seal. Get it started and a series of gentle taps around the perimeter will seat it. If you have a nick on the crank, it could be slicing the seal upon insallation. Try wrapping the end of the crank with thin tape to protect the seal as you slide it into position.

 

[SHOGUN88]

Yeah im pretty sure the rear cam seal is leaking. Any tips on replacing them? I replaced all 3 a couple of months ago I dont want to do iot again.

 

[itwonder]

Yeah im pretty sure the rear cam seal is leaking. Any tips on replacing them? I replaced all 3 a couple of months ago I dont want to do iot again.

They like to leak around the outer perimeter and they tend to work out of position, especially that rear cam seal. So you have to use sealant around the outside when installing. Just a thin bead. If using the rubber coated Ford OEM or Felpro seal, use RTV sealant. If using the metal case National seal, then use anerobic sealant. Unlike the other two, you can change the rear one without removing the timing belt. I get them started with my fingers, and then tap into place using a PVC pipe coupling and a heavy flat metal bar for a hammer (there is not enough clearance for a regular hammer). Be very careful not to nick the camshaft when puncturing the old seal with a pick or angle drill to remove it.