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

[Mopar1973Man]

Interesting. Never ever would have thought that...

Whats the crossover tube and whats it do?

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

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.

[CSM]

So do those crossover tubes ever need cleaned?

[Mopar1973Man]

No. That is the job of the fuel filter to prevent any debris from ever reaching that point because if so that means the injection pump has been eating dirt/debris too and it not going to live long either.

[dripley]

So CDP, how's she starting now?

[CUMMINSDIESELPWR]

So CDP, how's she starting now?

its faster than ever! half second to a second if that! while i had the heater grid off i noticed my gasket had blown a leak so i replaced it with rubberized cork style and it drives great!

[CUMMINSDIESELPWR]

well i left the rig parked uphill all night and he starts with zero issue. problem solved!!

[dripley]

Happy days are here again!!!!!!!!!

[Mopar1973Man]

well i left the rig parked uphill all night and he starts with zero issue. problem solved!!

So it was a o-ring issue.

[CUMMINSDIESELPWR]

So it was a o-ring issue.

yessir! it was so bad that sitting for 15 minutes would drain the system and cause long start.

[mopartechnician]

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.

[ISX]

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.

[CUMMINSDIESELPWR]

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