[remmy]

Ive got a 107,XXX mileage WK but the motor was rebuilt and has almost 50k on it. It has an intake/headers/exhaust and a mild tune with EGR blocked off. I also dont really beat on it.

This thing is eating 3-4 quarts of oil between changes and I notice once in awhile a small puff of blue smoke out the back when accelerating from a stop.

Ive had cars where the motor was going bad and they always showed signs or sounds of distress but this one runs and sounds like it does as always. I dont even have a "HEMI Tick". My driveway has no stains either.

Could it be a bad PCV possibly? Ive heard of them causing the loss of 1 quart every 500 miles in some cases.

 

[remmy]

Question, why was the 5.7 rebuilt with such low mileage on it ?

Dumb ass brother hydrolocked it in d/t Charleston, SC while I was on deployment in 2010.

 

[remmy]

Ill have to order a PCV, NO ONE effing has one in town. WHY?! the 5.7 is practically in every chryco ever made this side of the millenia.

Ill have a compression test done later as well. If anything I hope I can get by with it for at least another 6 months and baby it. Im not throwing any more god damn money into this thing. Its nailed me $10k in misc b/s repairs in the last year and a half... well, some major but still.

 

[remmy]

In fact, it does stall once in every couple of weeks at idle. Havent checked it yet. I forogt this weekend to do it.

 

[remmy]

I'll be ordering a new PCV on Friday. I added a slightly different Mobil 1 called "Advanced Formula" ... Whatever that is. It was all they had. Haven't noticed much oil burning since.

Curious; could I theoretically add heavier weight oil if I disable MDS with my diablo sport tuner?

 

[remmy]

Eh, just talked to a friend about it. He mentioned that it wouldnt work as it would f*** up the hydrualic lifters and MDS has nothing to do with it. He also said "American lifters designed only to work with 5-30 is the dumbest f***ing thing ever."

lol

 

[remmy]

I installed the new PCV this weekend. I had to use channel locks to twist it out of position to remove it. Fair warning; you might need some needle nose pliers. The head snapped off its shaft when I tried to pull it out . Fortunately I had a tall friend with freaky long skinny arms who had the positional fulcrum to somehow pull it out. I lubed the new one and popped it in easily.

I noticed the old one was really oily and had residue. Cant tell if it was jammed as it broke when pulling it out although the small piston seemed to move freely. Well see from here. Im just about out of options with this oil burning issues (burned through a quart in 4 weeks) other than switching to straight up dyno oil (non-synthetic)


Install tip: Make sure the little hole under the head of the top of the PCV faces the breathing tube that goes into the head of the motor once installed

 

[remmy]

Im assuming the reason I would need a catch can is because too much oil is getting by the PCV and dumping it into the intake? And Im also assuming the PCV on backwards prevents more oil from getting by? Just wondering, you dont think that might have any long term effects? Im not a mechanical expert.

 

[remmy]

You would think haveing the PCV backwards would block all flow though...

 

[remmy]

Haha. Thanks. Ill have to try reversing it, saw another little puff of blue smoke today .

 

[remmy]

Blue smoke = engine oil is leaking directly into the combustion chamber, and pcv blowthrough would not cause this. My guess is either valve stem seals or piston rings were not done /installed properly by the rebuilder. I'd confront the rebuilder about the problem.

DUDE. I LOVE YOU. So glad you convinced me to check up on the warranty.

Jeep Since New: 108,927
Engine Repaired: 75,712
___________
Current Engine Miles: 33,215

Date Repaired: Oct 09 2010

Warranty (even if it was a short block repair): 3 Year/100k



Looks like Im still under warranty :thumbsup:

Waiting for the dealer to call back once he pulls my hard copies up.