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I took off the upper intake today to paint it and i found some oil in it. Is this natural? Whats the problem if its not? Also there werent any gaskets between the upper and lower only black permetex. Im guessing this is set up wrong and i should buy some real gaskets.
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most likely it's just oil coming from your crankcase breather and/or your pcv valve
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91 mustang 5.0 lx,306 shortblock,E-303 cam,ported and polished E7's,rebuilt stock T-5,bbk E/L shorty headers,with their 2 1/2" o/r H-pipes,70 mm maf,3G alt.,upr adj. upper c/a's 3:73 gears. race weight with driver:3260,only a 100 lbs. more than the 85
85 mustang: parts car for now
Best time 13.7@ 102 mph 2.074 60' on street tires(in the '85)
Best time 14.3@ 96 mph 2.13 60' on street tires(in the '91)
You are going to want a gasket between the upper and lower.As far as the oil,Make sure that the breather filter below the PCV valve is in good order or it will push oil into the TB and eventually shove gaskets and seals out.
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previous stangs of the fox variety are a 79' 302 auto,87 5.0 auto t top,87 one owner 5 speed(VERY NICE!),89' GT 306,Tubular intake b303,Hookers etc.
Current is one of 661 92' Bimini blue LX hatches.Vortech with 8psi and a diaper for passengers lol!
Another new ride!85' GT 5 speed Black with tan interior and unmolested.
yea i plan on putting gaskets on it now. where can i get a PCV screen if its not in the intake?
Most of your better auto parts stores carry them now.Used to be a dealer only item.I found the thing years ago after an oil pan gasket install and what looked like a non-functional PCV system kept it trying to shove things out.The dealership asked me how I found it when I asked for one.Nice huh?
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previous stangs of the fox variety are a 79' 302 auto,87 5.0 auto t top,87 one owner 5 speed(VERY NICE!),89' GT 306,Tubular intake b303,Hookers etc.
Current is one of 661 92' Bimini blue LX hatches.Vortech with 8psi and a diaper for passengers lol!
Another new ride!85' GT 5 speed Black with tan interior and unmolested.
Funny that when most guys do a rebe on the motor or intake swap they always forget to replace the PVC screen at the bottom of the PVC opening. I can't count how many times a customer brought a car into my shop complaining about oil blow by and other shops told them they need the motor rebuilt because they thought they had bad rings when it was only missing the PVC screen. I wonder how many 5.0 owners pulled the motor before they found this 6$ part missing and causing all the oil problems.
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92cp 331 solid roller valve train, steel crank, Carrillo rods, forged pistons, 9:0:1 comp, Vortech S-Trim 12lbs inter-cooled water to air, 30lb injectors, BBK longtubes, DR.Gas x-pipe, spintech mufflers Griggs Racing front suspension, Koni yellows, coil overs 275 front, 125 rear. Global West torque arm, pan hard bar. Wilwood 6 piston 13" brakes on the front and Wilwood 4 piston 13" brakes on the rear. gutted interior, 14P Moly cage
Still driven on the street
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Oil in Upper
