Quick Question
06-04-2013, 12:54 AM
#33
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Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
If that filter were to plug up on the inside, crank-case pressure might get high from blow-by. (past pistons). Then it will try to leak anywhere it can. Push up the dipstick, front and rear seals, ect. It'll run down and look like a Rear Main seal. Then it blows back on to the exhaust pipe where it crosses behind the bell housing. It might burn on that and make you look like a comet with a trail. No prob. You just cut a piece of aluminum trailer siding and wire it so the oil doesn't hit the pipe. (carry a piece or cardboard in case you want to park). (makes great fire starter once soaked). Mine vents OK. 
06-04-2013, 01:04 AM
#34
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Year: 1989
Model: Cherokee
Engine: 4.0
If that filter were to plug up on the inside, crank-case pressure might get high from blow-by. (past pistons). Then it will try to leak anywhere it can. Push up the dipstick, front and rear seals, ect. It'll run down and look like a Rear Main seal. Then it blows back on to the exhaust pipe where it crosses behind the bell housing. It might burn on that and make you look like a comet with a trail. No prob. You just cut a piece of aluminum trailer siding and wire it so the oil doesn't hit the pipe. (carry a piece or cardboard in case you want to park). (makes great fire starter once soaked). Mine vents OK.
06-04-2013, 01:29 AM
#35
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Year: 90,84
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Ha! I meant cardboard w/oil makes good starter in the wood stove. 
Anyway, no pressure in the Crankcase keeps it from trying to leak.
Anyway, no pressure in the Crankcase keeps it from trying to leak.
06-04-2013, 08:37 AM
#37
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Year: 1998
Model: Cherokee
Engine: 4.0
If that filter were to plug up on the inside, crank-case pressure might get high from blow-by. (past pistons). Then it will try to leak anywhere it can. Push up the dipstick, front and rear seals, ect. It'll run down and look like a Rear Main seal. Then it blows back on to the exhaust pipe where it crosses behind the bell housing. It might burn on that and make you look like a comet with a trail. No prob. You just cut a piece of aluminum trailer siding and wire it so the oil doesn't hit the pipe. (carry a piece or cardboard in case you want to park). (makes great fire starter once soaked). Mine vents OK.
06-04-2013, 07:41 PM
#39
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Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
On that front vent? no I don't think so, unless it drips oily goo. Idk, on a new engine it might actually suck IN there. My blow-by isn't bad for 273K, but it will get worse soon enough! Next time I have my valve cover off I'll do Cruisers valve cover Mod. Unless I'm doing an autopsy.
06-04-2013, 08:56 PM
#40
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Year: 1989
Model: Cherokee
Engine: 4.0
On that front vent? no I don't think so, unless it drips oily goo. Idk, on a new engine it might actually suck IN there. My blow-by isn't bad for 273K, but it will get worse soon enough! Next time I have my valve cover off I'll do Cruisers valve cover Mod. Unless I'm doing an autopsy.
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