Oil from tail pipe
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Joined: Feb 2007
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From: Sterling Heights,Mi
Oil from tail pipe
Good Morning all,
so I may corrupted both my boys, they both have purchased 7.3’s. My oldest has a 97 that was sold to him for 500 not running. And has been a blast to trouble shoot. Everything from the IDM was stolen out of it, to needing a PCM. Then old fuel.
we have her running now, but we are pouring oil out of the tail pipe. My first thought was injector o rings, but this did not solve our problem, any thoughts??
so I may corrupted both my boys, they both have purchased 7.3’s. My oldest has a 97 that was sold to him for 500 not running. And has been a blast to trouble shoot. Everything from the IDM was stolen out of it, to needing a PCM. Then old fuel.
we have her running now, but we are pouring oil out of the tail pipe. My first thought was injector o rings, but this did not solve our problem, any thoughts??
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From: Bahstun
if you have good compression, it will burn oil as fuel, turbo seals are shot most likely or an injector is leaking by which can cause hydro lock
is it smokey when first running? and firing on all 8?
is it smokey when first running? and firing on all 8?
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Joined: Dec 2012
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From: Las Cruces New Mexico
Most likely turbo oil seals, time for a rebuild or replacement. But first make sure it's not residual oil from when you did injector O rings, takes at least 50+ mile of running it hard to burn all the oil out the exhaust.
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From: Sterling Heights,Mi
Thread Starter
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Hotshot
Joined: Feb 2007
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Likes: 10
From: Sterling Heights,Mi
Lead Driver
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From: Bahstun
I would do a compression test while in there too
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Joined: Feb 2007
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From: Sterling Heights,Mi
what would you expect? I ask because if I am leaking through the injector, would I not see 3000lbs of compression?
I get the idea of looking at rings/ heads: head gaskets… but if it is blow through the injector?!
I get the idea of looking at rings/ heads: head gaskets… but if it is blow through the injector?!
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Hotshot
Joined: Dec 2012
Posts: 11,270
Likes: 1,654
From: Las Cruces New Mexico
Could be a stuck open injector, allowing fuel to be dumped into the offending cylinder. Pin point which cylinder it is and go from there, and like Knotty said do a compression check as well, could be a more serious problem.
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