LPOP Still leaking
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Mountain Pass
Joined: Dec 2022
Posts: 152
Likes: 56
LPOP Still leaking
Ok, so had an oil leak at the LPOP, replaced the LPOP with Melling LPOP, and new Motorcraft Harmonic Balancer.
Couple of notes: One of the alignment pins was missing, and the key had factory grey silicone holding it place. I did not replace the missing alignment pin, and my understanding is that the silicone in the keyway is to hold the key in during assembly.
With that all said, the front seal of the LPOP (crankshaft) still continues to leak, trying to figure out what I did wrong.
Are both alignment pins required ?
Any help would be greatly appreciated.
Couple of notes: One of the alignment pins was missing, and the key had factory grey silicone holding it place. I did not replace the missing alignment pin, and my understanding is that the silicone in the keyway is to hold the key in during assembly.
With that all said, the front seal of the LPOP (crankshaft) still continues to leak, trying to figure out what I did wrong.
Are both alignment pins required ?
Any help would be greatly appreciated.
More Turbo
Joined: Sep 2018
Posts: 544
Likes: 213
From: UT
I only had one pin in mine.....I used a dab of the Right Stuff in my keyway. No leaks after a year.
Where is your leak coming from? Can you see in there at all? I think mine originally leaked because 2 of the bolts had come loose, one was almost all the way backed out, the other was only finger tight.
Where is your leak coming from? Can you see in there at all? I think mine originally leaked because 2 of the bolts had come loose, one was almost all the way backed out, the other was only finger tight.
Lead Driver
Joined: Oct 2005
Posts: 6,129
Likes: 1,919
From: Ponca City, OK
Yeah knowing whether the leak is from the pump housing or the shaft seal would be the first step. Was the seal lip and balancer shaft lubed well before the balancer was installed? Was an installation tool used or was it run up with an impact?
More Turbo
Joined: Sep 2018
Posts: 544
Likes: 213
From: UT
did you torque the harmonic balancer bolt to 212ftlbs? might need someone to hold the flywheel for you....I did
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