Blowing oil out the filler cap tube

[lindleyt]

I have a 88 Ranger with 85,000 miles. It's cherry to the max. I'm having a little promblem with it. It's a 4cyl,5 speed. The tube that comes from the oil fill cap to the breather is blowing a lot of crankcase gasses and oil through it.
I replaced the pcv and oil fill cap but no luck. The truck seems to run fine but I'm losing alot of oil. I've taken a bottle and placed the tube in it for now to catch the oil. I cut a slit in the top to vent the gasses. Any ideas? Sorry to go back so far in years, Normally I'm asking about my 2000 Ex sport. Thanx.

 

[yellowcat]

that sounds like blow by to me. Any blue smoke coming from the exhaust? How do you know the exact milage on that motor?

 

[lindleyt]

Everything on the truck is almost flawless. The enterior is emaculant. So is the exterior and under the hood. I'm pretty sure that the milage is correct. The thing is cherry, you would have to see it to believe it. I thought about blowby as well but it is not smoking.
There is a hellava lot of gas pressure coming out of that tube. Maybe there are some clogs in the oil passages so the gases have no other place to go. I'm going to pull the valve cover and see if the baffle underneath the fill cap is still in place. Otherwise I"m stumped. 56 peolpe have veiwed my first post and you are the only one who even had a suggestion.Thanx.

 

[redneck21]

Maybe something is blocked like you said maybe try a lil seafoam .

 

[lindleyt]

Right on right on. Will post, with whatever solution I come up with to fix this power plant.

 

[Pdwight]

Blow By

A compression test will easily idnetify this as the culprit or not. All your cylinders should be within 20 psi of each other. I have an original 1978 Land Cruiser with 89K original miles (I know because I bought it new) with thesame problem, Cylinder #5 is only at 70 PSI while the others are at 130 PSI....easy to find this out.

Dwight

 

[lindleyt]

Thanks DW. I'll try that this weekend. That procedure I hadn't thought of yet. Again thanks. Tim