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7.3l injector question

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Old Dec 9, 2011 | 02:42 PM
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From: APOPKA,FL
7.3l injector question

if the sial r bad on the injectors would it make sound like it is missing on that cylinder? Leaks can thay put oil in to the cylinder? if not from the injecter sial where could the oil be getin in the cylinder? the only way i know of it getin in there would be up past the piston or down past the valve! if someone could help on this than you !!!!!!!!!!!!!!!!!!!!!
 
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Old Dec 9, 2011 | 02:44 PM
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From: APOPKA,FL
help

can a bad injector put oil in the cylinder
 
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Old Dec 9, 2011 | 02:50 PM
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how many sials r on the injector to put them in an can the top sial put oil back in the values
 
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Old Dec 9, 2011 | 02:54 PM
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how long dose it take to make the sials to go out on the injectors? if u replace one set of sials on one injector. would it make more sets go out?
 
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Old Dec 9, 2011 | 02:58 PM
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From: Livoina,La
 
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Old Dec 9, 2011 | 03:00 PM
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It's best to do all 8 injectors

It injector o-rings are bad you will be getting oil in you fuel bowl
 
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Old Dec 9, 2011 | 03:14 PM
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how is the oil getin in the cylinder
 
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Old Dec 9, 2011 | 03:15 PM
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an that y im missing on the cylinder
 
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Old Dec 9, 2011 | 03:26 PM
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How do you know you're getting oil in the cylinder ?
 
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Old Dec 9, 2011 | 11:00 PM
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At first I thought it was coming out the valve cover and then I thought it was coming out the turbo intake all the parts inside where cover in oil.
I took it all apart and cleaned it all up while it was in pieces I cranked it up and I put my hand over the intake on the head and my hand was coverd in oil.
I looked inside the intake and theres oil all inside of it.
Not to mention the turbo exhaust is blowing oil ever where.
So I dont know you tell me where its coming from?
 
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Old Dec 10, 2011 | 07:46 AM
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The intake side will have oil in it from the ccvbut if you got oil coming out out the exhaust side the you got a bad turbo
 
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Old Dec 10, 2011 | 05:36 PM
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No not at all I found out I had bad seals on the injector.
It was not hiting right on that cylinder.
I change out the seals an now its hiting right if you have a cylinder injector that is not hitting right the pistin will not get bigger for it to run right the oil was coming up past the pistin.
It has always somked a lot when I first start it up.
The hpop pressuer is split the frist injector and last injector get the most oil those cylinder seals will get the most pressure so they go out sooner then the rest.
I found out that the seals where cut from the oil making it sound like it was miss on that cylinder an makin it run rough.
It still hits on that cylinder but not like it should it was driping an not sprayin because of the seals.
P.S. its a high hour motor and low miles
 
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Old Jan 25, 2026 | 03:57 PM
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AD injectors at fair price?

Where is a good place to buy reman AD injectors?
 
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Old Jan 25, 2026 | 04:46 PM
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rosewood diesel
7.3 Power Stroke Fuel Injectors & Tools | Rosewood Diesel Shop of C******, OH
 
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