Fuel in oil ???

stroken · Jun 2, 2015

Hey guys. I know I haven't been on in awhile but ran into an issue in not positive on. I'm mixing fuel into my oil. Trucks is obviously deleted. Single turbo, 100% nozzles, dual dueler ect. I have ran truck with valve covers off and couldn't see anything. I've since pulled the turbo and hpfp out and air checked fuel rails with blow gun. Still nothing. I'm really leaning towards hpfp but that's a chunk of change to be wrong. Anyone have any ideas?? Going on two weeks now fighting this problem.

webb06 · Jun 2, 2015

If you have access to ids you could've ran a high pressure side test up to 24k psi with the valve covers off then maybe tithe re would be signs of a leak. But now that the turbo is off that would be a little tougher.

Is that the original pump? Or a reman?

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G Racing · Jun 2, 2015

Hpfp, injector or one of the fuel lines.

stroken · Jun 2, 2015

An injector itself would cause this?

And it's original pump. 125k on it. Has help from cp3 since 105k

webb06 · Jun 3, 2015

stroken said:
An injector itself would cause this?

And it's original pump. 125k on it. Has help from cp3 since 105k

Have you had any of the lines off recently?

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stroken · Jun 3, 2015

Not really. Last time they were off is when I had the injectors tested about a year ago. 5-10k miles ago. It's leaking enough the crank case fills up in about 3-400 miles

G Racing · Jun 3, 2015

the fitting that the fuel line threads on at the injector can leak.

Jonnydime · Jun 3, 2015

webb06 said:
If you have access to ids you could've ran a high pressure side test up to 24k psi with the valve covers off then maybe tithe re would be signs of a leak. But now that the turbo is off that would be a little tougher.

Is that the original pump? Or a reman?

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Could you write a tune on mcc to command 24k psi at idle?

webb06 · Jun 3, 2015

Jonnydime said:
Could you write a tune on mcc to command 24k psi at idle?

That I do not know. I don't write any tunes so someone else will have to answer that.

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ckrueg · Jun 3, 2015

Jonnydime said:
Could you write a tune on mcc to command 24k psi at idle?

I'm sure you could, but I'm not sure if it would actually reach near that pressure or if it would be hard on the pump. I made tunes that idle at 7k and they work fine.

Powerstroke Man 6.4 · Jun 4, 2015

If you gave IDS or autoenginuity you can command max psi at idle.

But at 11,000 my trucks start to lope so IDK what IDS does to maintain 24K at idle while doing the high pressure fuel system test.

webb06 · Jun 4, 2015

Powerstroke Man 6.4 said:
If you gave IDS or autoenginuity you can command max psi at idle.

But at 11,000 my trucks start to lope so IDK what IDS does to maintain 24K at idle while doing the high pressure fuel system test.

At 24k psi on ids it raises engine rpm to around 1500

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Powerstroke Man 6.4 · Jun 4, 2015

webb06 said:
At 24k psi on ids it raises engine rpm to around 1500

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Awesome thanks.

stroken · Jun 6, 2015

Well took my verus and raised frp to 25,xxx. Can't see any dye or anything pissing under valve covers. Little dye on back of hpfp in a little Allen head bolt under the gear. Is that where it leaks?

webb06 · Jun 7, 2015

stroken said:
Well took my verus and raised frp to 25,xxx. Can't see any dye or anything pissing under valve covers. Little dye on back of hpfp in a little Allen head bolt under the gear. Is that where it leaks?

If you can see it the id say you found the winner. I have no experience with a leaking internal hpfp though. My belt driven pump leaked out the front seal when I had it on.

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DEEZUZ · Jun 7, 2015

Rare but yes that's where I have been told the pumps leak from...

Guys please be super careful running these with valve covers off, that pressure is no joke

webb06 · Jun 8, 2015

CTC DEEZUL said:
Rare but yes that's where I have been told the pumps leak from...

Guys please be super careful running these with valve covers off, that pressure is no joke

No doubt. Don't be getting any fingers close to anything under there. Stay back and watch with a light. High pressures like that can kill if it enters the bloodstream....

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stroker221 · Jun 16, 2015

Ya I know a guy that was messin around with the high pressure fuel side and it sprung a leak with his face in there and put him in ER for a few days. Straight shot to an eye.