hey guys i really dont understand whats going on here, bronco 1995 EFI, the small air filter that goes to the crankcase (the end of the pcv line, from the oil cap to the air filter) well that small filter is getting really dirt whit oil, i have change it about 3 times this year, and its always the same, a lot of oil inside the air filter box, i check the pcv valve, it was a bit dirt, but i cleaned up, after i installed the valve i checked the pressure whit the engine on, it have a lot of negative pressure (vaccum) i installed a new small filter but its getting dirty again, check the pressure on the other side of the engine and theres almost none pressure, but i already checked out all the lines and theyre all clean, so what tha hell its going on here?...
1968
the engine is about to arrive to 250.000 km, about 156.250 miles, thats a lot and i dont know how did the previous owner threat that truck, but i hope is not a worm engine, and anyway it doesnt show any kind of signal of a worm engine (blue smoke on the engine or losing oil), so im still cheking to know what is it...
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Now this is gonna sound too simple
but it worked for me. I had the same problem with my 86 and one of my mechanic buddies made me swear I'd pay the full $5.00 CDN for a genuine Ford PCV valve.
I'd always used cheapie jobber PCV valves and had this nagging oil burning smell, even though the new long block had less than 60,000 miles on it. I also had the same oil breather filter saturation troubles as you.
I bought it, installed it and he was right on the money. No more oil burning fumes, no more oil soaked oil breather filter. I made one concession to my cheap ways, I pried the "L" shaped top off the old jobber PCV valve and put it on the new Ford one, because it was the dreaded "F" shape.
My EFI'd 302 never used the second port of the "F" shaped PCV top and it was heck on earth to put on under that upper intake.
I realize Genuine parts may be hard to get that near the equator, but try, as it cured mine for good.
Sixlitre
p.s./
It could also be the sludged up oil too.
but it worked for me. I had the same problem with my 86 and one of my mechanic buddies made me swear I'd pay the full $5.00 CDN for a genuine Ford PCV valve.
I'd always used cheapie jobber PCV valves and had this nagging oil burning smell, even though the new long block had less than 60,000 miles on it. I also had the same oil breather filter saturation troubles as you.
I bought it, installed it and he was right on the money. No more oil burning fumes, no more oil soaked oil breather filter. I made one concession to my cheap ways, I pried the "L" shaped top off the old jobber PCV valve and put it on the new Ford one, because it was the dreaded "F" shape.
My EFI'd 302 never used the second port of the "F" shaped PCV top and it was heck on earth to put on under that upper intake.
I realize Genuine parts may be hard to get that near the equator, but try, as it cured mine for good.
Sixlitre
p.s./
It could also be the sludged up oil too.
Disconnect the tube that goes to the filter box and extend it underneath the master cylinder with a check valve, then plug the hole in the filter box. As long as you don't go into deep water you won't have any problems. I did this to my 302 for about 8 months before the engine finally quit on me. Saves from buying air cleaners and keeps from boogering up the throttle body. I had the same symptoms as you. This helped a bit.-Bob
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"F" Type PCV valve? I added a vacume line to the little nipple and that solved the problem. More vacume to the crankcase. Won't fix a tired motor with blowby, but will help with the mess. You can "T"-off a nipple on the intake or find one there that is not used. I figured I needed more ventilation with blower and higher compression.
Now that's just good thinking !
Great idea. I don't believe my PCV's extra nipple ever was used, and always was plugged and every junker I look at seems to bear this out too, but I like your idea.
Agin 2000
No disrespect meant about your country, wasn't even ribbing ya. Know where you're coming from, I've put up with my share of log cabin and igloo jokes, heck I had it comin' though, I really was up with the igloos on Baffin Island with the Bronco for two years.
Try the new genuine PCV valve, after a couple of close together oil and filter changes and then go with Blown's great idea if that doesn't sort things out for you.
Sixlitre
Great idea. I don't believe my PCV's extra nipple ever was used, and always was plugged and every junker I look at seems to bear this out too, but I like your idea.
Agin 2000
No disrespect meant about your country, wasn't even ribbing ya. Know where you're coming from, I've put up with my share of log cabin and igloo jokes, heck I had it comin' though, I really was up with the igloos on Baffin Island with the Bronco for two years.
Try the new genuine PCV valve, after a couple of close together oil and filter changes and then go with Blown's great idea if that doesn't sort things out for you.
Sixlitre
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