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sigh... long start when hot again...

CUMMINSDIESELPWR
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Mopar1973Man

Mopar1973Man

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Interesting. Never ever would have thought that...

Whats the crossover tube and whats it do? :lmao2:

Actually I wasn't. I never knew that part had a name. :ashamed:

Ok. Just for you CSM

Connector tube (or crossover tube) is the tube that connects the high pressure line to injector. Inside the crossover tube is a filter called a edge filter. This filter takes small debris particles and beats then in the funnel shaped V's till the debris is small enough to pass-through the injector. On 12V's the edge filter is part of the injector body.

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mopartechnician

mopartechnician

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I have a theory on what was going on here. The connector tube o-ring seals out air from getting into your fuel system. So if you have a bad one it lets air bleed back your fuel. You cannot measure air molucles(sp) so you can have an air leak but no fuel leak. Usually if you have a bad connector tube o-ring it will be hard starts cold and start normal when the engine is warm. I would have to look at he injectors to see if there is actually fuel return going past the connector tube but Im thinking that the o-ring on the injector blocks the return fuel.

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ISX

ISX

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Same issue with my truck. You can't see any fuel leaks but air would get in. I actually cut all the metal lines and used swagelok fittings to eliminate the stupid banjo bolts, problem solved.

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CUMMINSDIESELPWR

CUMMINSDIESELPWR

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I have a theory on what was going on here. The connector tube o-ring seals out air from getting into your fuel system. So if you have a bad one it lets air bleed back your fuel. You cannot measure air molucles(sp) so you can have an air leak but no fuel leak. Usually if you have a bad connector tube o-ring it will be hard starts cold and start normal when the engine is warm. I would have to look at he injectors to see if there is actually fuel return going past the connector tube but Im thinking that the o-ring on the injector blocks the return fuel.

ive had the pissing fuel from old orings before, this time with a visibly failed oring it was pissing and sucking air, very fast ill add! so you can have a combo of these... pissing sucking pissing and sucking (and no im not describing a porno LMAO
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