?????turbos?????turbos??????
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need help, today i decide to look around my car for boost leaks...... my boost patt.....are 7-5-6 and i just put a boost gauge on so i don't konw if that what the car has been running since i got it...... ok now for my question.. are the boost patterns the same in a auto 7 as in a 5 speed 7???? and should there be any oil in the inside of the intercooler oh i also have an intaka and exaust. are my turbos gone if there is oil in the intercooler?????
any info will help and thanks for taking the time to read this
any info will help and thanks for taking the time to read this
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I think oil in the intercooler piping and around your charge relief valve means your turbos are going... not 100% on that you will have to ask a Techie. Im going through the same thing right now
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well you are lucky i think i might have to go and get some used ones or rebuild mine......new 3,500 or something oh and my intercooler had a lot of oil in it, does anyone know if this is bad for the engine????
#6
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Originally posted by pimpin24_rxseven
well you are lucky i think i might have to go and get some used ones or rebuild mine......new 3,500 or something oh and my intercooler had a lot of oil in it, does anyone know if this is bad for the engine????
well you are lucky i think i might have to go and get some used ones or rebuild mine......new 3,500 or something oh and my intercooler had a lot of oil in it, does anyone know if this is bad for the engine????
Oil could harm the engine if it's way too much I guess... But I doubt it. It'll burn off. RX7's inject oil anyway...
#7
Here's a good post about oil in the IC pipes:
As for oil on the intake, doesn't really mean the turbos are bad. A HUGE misconception in the 3rd gen community is the amount of oil in the intake tract determines how close you are to a blown set of turbos. Not true, mostly, most people forget that the 93, and 94's have a PCV system. Positive Crankcase Ventilation system, which succinctly means when the boost fills the crankcase to a predetermined limit the air and oil must go somewhere. There are a series of hoses coming off the manifold to the oil filler neck and one comes down strait below the hose going to the manifold(which contains a black and grey checkvalve, this is the pcv valve)this hose goes under the alternator and down to the pipe cluster that goes behind the air pump. There are 2 hoses that come up off of the primary turbo inlet that attach to these pipes. Since the turbo inlet side is sucking air, this is the source for vacuum for the vacuum chamber(helps control the charge control valve and transition) and the other hose is the "dump" for this PCV system. Now, the harder you drive the car and are on and off boost, the more the pcv system will be active and "dumping" oil into the inlet side of the primary turbo, and if the oil is dumped into the incoming air, then logically it, since it is liquid and cannot be compressed(right) it just coats the intake piping and leads one to believe the turbos are going bad! Class dismissed.
Last edited by Mahjik; 07-21-03 at 09:09 PM.
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#8
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As Mahjik's post says, it's not always bad. But a lot of oil in the wrong places is bad.
What did you figure out about the boost pattern? Did you find any loose hoses or cracked couplers, etc.?
What did you figure out about the boost pattern? Did you find any loose hoses or cracked couplers, etc.?
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