Leaky HPOP damage clutch? - Ford Powerstroke Diesel Forum
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Old 04-01-2012, 07:06 PM
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Leaky HPOP damage clutch?

If I understand correctly if the HPOP has a leak it will often appear as a rear main seal leak. Can or will this damage the clutch on a std trans?

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Old 04-01-2012, 07:21 PM
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I'm pretty sure an oil leak that looks like a rear main leak is from the turbo pedestal o rings. The hpop is on the top front of the motor so most likely it is the turbo o rings/pedestal o rings. The hpop o rings and high pressure oil lines can leak and drain into the valley but that would be very noticable due to the high pressure.


And I don't think oil running down the back of the engine will damage your clutch. Obviously you want to fix the leak soon, but your clutch will be fine

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Old 04-01-2012, 07:27 PM
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Thanks for the reply. I am actually searching for a truck and looked at a couple today. PEOPLE DON'T TAKE CARE OF THEIR TRUCKS!!! Anyway, both trucks I looked at had oil underneath, one not so bad and the other pretty bad considering it was dripping and he said he hadn't driven the truck since Dec.
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Old 04-01-2012, 07:32 PM
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Another reason for oil on the back of the engine is from the ccv. It vents the crankcase oil vapers into the intake and it is blown all over the top of the engine. When I bought my truck I had oil all over the back of the motor and after I re-routed the ccv away from the intake the back of the engine dried up. All those o rings leak after awhile. The are fairly easy and inexpensive to fix and dumping the ccv like I did gets rid of a lot of the oil that collects on the engine

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Old 04-01-2012, 07:50 PM
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Into the intake tube between the air filter and the turbo? I saw that today when checking the turbo impeller on one of the trucks.
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Old 04-01-2012, 07:59 PM
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Quote:
Originally Posted by stickk View Post
Into the intake tube between the air filter and the turbo? I saw that today when checking the turbo impeller on one of the trucks.
Yeah it vents it right into the intake tube from that rectangular doghouse shaped vent on the back of the valve cover. You can replace that intake piece with a section of 4inch pvc pipe, flip that doghouse around so the drain port faces back and clamp a section of 3/4 heater hose to it. I used a six foot long piece that I ran over the brake booster then straight down to the frame rail. Never had any problems, works fine

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