A little help with oil leak.

[JLElectric]

2001 7.3 F250 Superchips, 5" Turbo back, AFE stage II. I have a pretty good oil leak by my bell housing. I dont know if the mods caused it or what. The rear main seal was replaced about 2 yrs ago. What should I do

[outlawdiesel]

look in the valley of the motor.it sounds like bad O-rings or hpop gasket is leaking.

[Diesel Nick]

Originally Posted by flyin hawaiian

look in the valley of the motor.it sounds like bad O-rings or hpop gasket is leaking.

Yes check that out If you have oil in that valley they it drips down the back side of the motors makes it look like a rear main seal leak but its not! Ford has a 3 o-ring kit thats will replace the o-rings on those 2 lines that goto the HPOP and a o-ring for the plug on the back side of the HPOP that will fix that simple problem...

[JLElectric]

no oil in the valley.

[JLElectric]

I made an 8 hour trip going about 80 mph and lost about 3 qts.

[outlawdiesel]

feel the back of turbo.could be bad O-rings under turbo

[bottledgt]

what is the usual cause for oil in the valley. mine has started leaking in there, but i cant see what until i tear it apart and it aint that bad yet. just wanna know probable cause before i get it all apart

[NCHornet]

Oil in the valley is usually caused by leaking O rings on the HPOP lines at each head, or the oil is leaking through the intake boots from the CCV. This is why I recommend for every 7.3 owner to do the CCV mod. Countless rear mains have been replaced by mechanics who had no idea what they were working on, when all along the oil was from the CCV. If you need more info contact me.

NCH