tmaxx411 Posted January 26, 2014 Posted January 26, 2014 i recently purchased a 2.5l comanche. it originally came with a breather filter in the pcv location, so it was spraying oil everywhere. i replaced the pcv and hose, replaced the oil cap, and cleaned off the valvecover. it seems to have massively slowed down the leak, but there is still a pretty large oil leak from the top of the valvecover. i noticed with the oil cap that it is very loose side to side, and I'm wondering if that is normal? also what is the smaller line coming off the valvecover in the back? thanks!
az comanches Posted January 26, 2014 Posted January 26, 2014 Check out cruiser 54's renix tips he has a fix for leaking valve cover caps.
Jeep Driver Posted January 26, 2014 Posted January 26, 2014 Run the front line to the intake, the smaller line runs to a vacuum port. Change out the valve cover gasket. Image Not Found
Jeep Driver Posted January 26, 2014 Posted January 26, 2014 I would suggest to you that either you have a ton of blow-by........check compression. or...you have a bunch of muck that is restricting oil return to the pan.......IOWs your oil in remaining on the top of the head.... or.....your vacuum line is clogged or broken an you are not getting any positive crank case ventilation.
54bobby Posted January 26, 2014 Posted January 26, 2014 exact same problem with my 87 2.5. have bought 2 new oil filler caps and there both loose side to side as the op's. I'm also getting oil seepage from both the lines to the intake and the tb and I have replaced those grommets as well.
tmaxx411 Posted January 29, 2014 Author Posted January 29, 2014 i checked the vacuum line and flushed it out with brake clean, i checked compression, and it is 140 on all 4 cylinders, and from what i can see, it doesnt look like the oil is pooling in the head.(peeked through the oil fill) now what?
tmaxx411 Posted February 3, 2014 Author Posted February 3, 2014 i was surfing around, and discovered they make aluminum 2.5l valvecovers. will it be a direct swap? or is there more involved?
tmaxx411 Posted February 3, 2014 Author Posted February 3, 2014 ebay lol. apparently they are oem on 91+ wrangler 2.5's http://www.ebay.com/itm/Jeep-Wrangler-Factory-YJ-2-5-L-Four-Cylinder-Engine-Valve-Cover-/190984062620?pt=Motors_Car_Truck_Parts_Accessories&hash=item2c7789869c&vxp=mtr http://www.ebay.com/itm/JEEP-2-5-4-CYL-Valve-Cover-53010427-FREE-SHIPPING-TO-LOWER-48-/190903700891?pt=Motors_Car_Truck_Parts_Accessories&hash=item2c72bf4d9b&vxp=mtr http://www.ebay.com/itm/87-02-amc-2-5-150-aluminum-valve-cover-jeep-wrangler-/111224160138?pt=Motors_Car_Truck_Parts_Accessories&hash=item19e579ff8a&vxp=mtr http://www.ebay.com/itm/Jeep-Wrangler-TJ-Valve-Cover-2-5L-4-cylinder-1997-2002-Aluminum-/331117622195?pt=Motors_Car_Truck_Parts_Accessories&hash=item4d1825f3b3&vxp=mtr
Comanchemodder Posted February 3, 2014 Posted February 3, 2014 I have and aluminum one which I bought from someone on this site. I never used it since when I swapped the engine to an '94 2.5L, it came with an aluminum one already installed! I will PM you pics if you are interested in taking it off my hands.
tmaxx411 Posted February 3, 2014 Author Posted February 3, 2014 definitely interested. also curious to see how you ran the pcv system?
yxmj Posted February 4, 2014 Posted February 4, 2014 Run the front line to the intake, the smaller line runs to a vacuum port. Change out the valve cover gasket. Image Not Found Off topic Can you post a closer pic of that awsome aux fuse panel you have happening on your upper left fire wall... :thumbsup: ....and no offence ......but that engine compartment is tooooooo clean :eek:
wpnsdog Posted May 5, 2014 Posted May 5, 2014 What is the small line, at the rear of the valve cover, called and where can I get a new one?
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