New to me 96 7.3 problems

outlawpowerstroke · Aug 18, 2015

Ok I'll start by introducing my self kinda.im grant im still in high school on my senior year I cut hay to pay for my toys.im not new to the diesel world I mean this is my 4th one(still have um all) any way I just bought a 96 lifted extended cab short bed powerstroke f250 d60 swap with a zf5 and 3 inch dp to a full 5 inch straight pipe.anyway it knocks.i did buy it this way but for the price I couldn't resist.im not sure what kinda knock it is wether fuel or rod I have pulled the vc off and been playing with the injectors but no luck

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Arisley · Aug 19, 2015

We don't know either.

Moving this to the OBS section.

outlawpowerstroke · Aug 19, 2015

Arisley said:
We don't know either.

Moving this to the OBS section.

I'm gonna upload a vid of it if it'll let me
https://vimeo.com/136715390

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Magnum PD · Aug 19, 2015

Does it all the time? Not certain conditions?

outlawpowerstroke · Aug 19, 2015

Magnum PD said:
Does it all the time? Not certain conditions?

All the time yes.

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Golddigger · Aug 19, 2015

My brother in law got his hot and it has knocked louder than that for years. He's got over 490k on it

Powerstroke Man 6.4 · Aug 19, 2015

Sounds like injector knock to me? sounds very similar when my injectors went. Blow by out of the oil fill? any smoke? does it start fine?

Magnum PD · Aug 19, 2015

Did it have flood damge?

Patrick Feeley · Aug 19, 2015

Are all the injectors spitting the same amount of oil out of the oil discharge spouts? If one is less than the rest, ohm out the solenoid (3-4 ohms) and check the wiring. You could also remove the solenoid and make sure the poppet screw under the solenoid is tight. Cheers!

outlawpowerstroke · Aug 20, 2015

Not very much smoke but you can tell it's missing I just can't find which injector is knocking.ive unplugged um 1 by 1 and no flood damage and they seem to all be putting out the same

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Magnum PD · Aug 20, 2015

Rocker arms all straight and pushrods?

outlawpowerstroke · Aug 20, 2015

Magnum PD said:
Rocker arms all straight and pushrods?

Look to be but I will look agian when I pull the vc off agian cause I didn't want water comin throught some how and getting down in there

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Magnum PD · Aug 20, 2015

Check for broken rocker arm bolts.

outlawpowerstroke · Aug 20, 2015

Magnum PD said:
Check for broken rocker arm bolts.

Ok I will

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Magnum PD · Aug 20, 2015

Good luck.

Hope it's not a bend connecting rod.

lincolnlocker · Aug 20, 2015

pull all the pushrods and make sure they are straight as an arrow! i wouldn't think rocker bolts would break but rocker arms have been known to crack and break..

live life full throttle

Patrick Feeley · Aug 21, 2015

If you do pull the pushrods, clock the motor to the 11 o'clock position (pointer on CPS). This provides a drain path for the oil so the lifters don't "jack" (pump up) due to residual oil pressure. Cheers!