oil in distributor
#1
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Car: 86 Firebird
Engine: LG4 feedback controlled 350
Transmission: used to be T5 now T56
oil in distributor
How common is it for engine oil to leak up throught the distributor shaft housing and collect in the distributor (under the rotor, or pick up coil, base of dist top, etc)?
Could this cause a burning oil smell at mid to high rpm's?
I guess any ammount of oil leaking into distributor is unacceptable?
Thanks!
Could this cause a burning oil smell at mid to high rpm's?
I guess any ammount of oil leaking into distributor is unacceptable?
Thanks!
#2
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Car: 1988 Trans Am GTA
Engine: 350 4BBL
Transmission: 700R4
Axle/Gears: 3.27
Re: oil in distributor
Not really, but it is a sign that the PCV system isn't working right allowing pressure to build in the crankcase.
(this usually happens when aftermarket valvecovers are installed and the pcv system is not put back on)
(this usually happens when aftermarket valvecovers are installed and the pcv system is not put back on)
#3
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Car: 86 Firebird
Engine: LG4 feedback controlled 350
Transmission: used to be T5 now T56
Re: oil in distributor
Well, aftermarket valve covers are on, but have pcv valve on one side and breather on the other. PCV valve looks clean and rattles when you shake it, breather looks clean enough.
What else should I look for, or how to test if pcv system is working.
I had kind of thought of that also. Couldn't high crank case pressure also force oil out of non-tradational oil leak locations?
What else should I look for, or how to test if pcv system is working.
I had kind of thought of that also. Couldn't high crank case pressure also force oil out of non-tradational oil leak locations?
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Car: 1988 Trans Am GTA
Engine: 350 4BBL
Transmission: 700R4
Axle/Gears: 3.27
Re: oil in distributor
If the pcv system is working, the problem is in the distributor.
#5
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Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
Re: oil in distributor
You can test the PCV valve manually too - take it off, along with the hose to the carb. First, shake it, and see if it rattles. If it does, its good. Now, suck on the carb end of the hose, and you should be able to suck air through it. Now blow - it shouldn't let much if anything through.
Oil up the distributor shaft can also mean its got worn bushings as well. How many miles on this motor?
Oil up the distributor shaft can also mean its got worn bushings as well. How many miles on this motor?
#6
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Car: 86 Firebird
Engine: LG4 feedback controlled 350
Transmission: used to be T5 now T56
Re: oil in distributor
100k on distributor +/-
Not too many on bottom end, but was of questionable build quality.
Would large amounts of blowby from poorly honed cylinder walls do things like push oil up distributors and constantly blow out intake gaskets along china walls?
Not too many on bottom end, but was of questionable build quality.
Would large amounts of blowby from poorly honed cylinder walls do things like push oil up distributors and constantly blow out intake gaskets along china walls?
#7
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Car: 1988 Trans Am GTA
Engine: 350 4BBL
Transmission: 700R4
Axle/Gears: 3.27
Re: oil in distributor
...but it's too easy to check the engine for blowby, takes like a minute, tools required: your thumb.
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Car: '92 RS
Engine: 350 carb'd
Transmission: T-5
Axle/Gears: 4.10
Re: oil in distributor
I took a dizzy apart and it had what I would call an oil deflector. It was plastic and could very well be gone.
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