1996 U270 Coolant Hose blow out and Repair Problems

Topic: 1996 U270 Coolant Hose blow out and Repair Problems - Suggestions (Read 650 times) previous topic - next topic

1996 U270 Coolant Hose blow out and Repair Problems - Suggestions

October 28, 2013, 02:38:26 pm

I had the coolant hose, that is located under "the large air intake tube from air filter to turbo" blow on me on Saturday morning on I44S. I immediately exited into Bristow, OK and within 1/2 mile into the local Walmart.

No parts available until Monday.

I suggest that anyone who has a 96 or older coach, replace ALL of these rubber connections prior to failure.
Also, the parts do not seem to be readily available. NAPA said they could get one from Atlanta, GA in 5 days or maybe less. I did happen to have the correct part number with me and O'Reilly said they could get me one by 8AM tomorrow so I ordered a second one that they said they could get by 1PM. Hopefully, at least one of them will appear and I will be able to get back on the road.

Interestingly, I will only use 1/2 of the formed hose as that is what is needed to make the repair and the rest might be able to be used some place or NOT. Same kind of situation I had with the hose coming out of the oil cooler.

It appears that the easiest method of changing the blown hose is to remove the intake air hoses from the air filter to the turbo, to gain access to the upper hose end and hose clamp. I am making some effort to find a mechanic that I think might be competent enough to do a good install, but I may have to end up doing it myself. Small town with minimal choices.

Has anyone done this exercise before as I could use suggestions as to the ideal procedure.

Re: 1996 U270 Coolant Hose blow out and Repair Problems - Suggestions

Reply #1 – October 28, 2013, 05:49:55 pm

The other side works for the stick hose on the other side of the engine or at least it did on mine. Oh and I had mine go in Iowa last year.

Re: 1996 U270 Coolant Hose blow out and Repair Problems - Suggestions

Reply #2 – October 28, 2013, 07:12:26 pm

I am fairly certain we have almost the same coach. I did replace most of those hoses about 4 years ago and had some of the same problems finding the right ones. After doing that decided that the replacements were not as good as what FT had used, so I kept the old ones that looked okay as spares. There are two returns on that side of the engine, one of the hoses(smaller with a 90 degree bend) is easy to get to and the larger is difficult and may require removing the air intake and maybe even the alternator. I can't remember if I did that. Cover the turbine opening so nothing gets in there. I suppose you lost all the coolant, be sure the new stuff has the rating for Cummings engines. Are you going to replace all the other hoses going to the radiator and transmission cooler? The front of the transmission cooler was a bit difficult. I think the coolant was about 13 gal. I spliced in a new section of heater hose near the engine outlet and maybe return too as that is where the heat is. If you haven't replaced the thermostats, I believe there are two, might consider that if easily available. A failed thermostat caused a hose to pop on my Georgie Boy. Maybe you have fixed it by now.

Re: 1996 U270 Coolant Hose blow out and Repair Problems - Suggestions

Reply #3 – October 28, 2013, 08:21:15 pm

I'm about two hours on down I-44 from you and would be glad to help any way I can.

Is there nothing you can splice to get it to Cummins?

If I can help let me know. 405-249-8157. I will be there ASAP.

Re: 1996 U270 Coolant Hose blow out and Repair Problems - Suggestions

Reply #4 – October 28, 2013, 10:23:42 pm

Maybe -

R & M Fleet Service
721 E 1st Ave
Bristow, OK 74010
(918) 367-9326

First Class Mobile Mech
Tulsa, OK 74103
(918) 852-2570

Re: 1996 U270 Coolant Hose blow out and Repair Problems - Suggestions

Reply #5 – October 29, 2013, 08:47:25 am

I have never had occasion to remove the intake air tube assembly from the air cleaner or the turbo.
Is there any tricks to removing and replacing it?
I know you would remove it from the air cleaner and have seen that end done. How about the turbo end?
Do you take it loose from the turbo or a couple of steps back down the tube? It does not seem to be readily apparent just where to best detach it at the upper end near the turbo. Difficulties? Suggestions?
The rest of the process seems pretty straightforward. I hope........
Regards,

Re: 1996 U270 Coolant Hose blow out and Repair Problems - Suggestions

Reply #6 – October 29, 2013, 09:53:59 am

Quote from: Jon Twork – October 29, 2013, 08:47:25 am

I have never had occasion to remove the intake air tube assembly from the air cleaner or the turbo.
Is there any tricks to removing and replacing it?
I know you would remove it from the air cleaner and have seen that end done. How about the turbo end?
Do you take it loose from the turbo or a couple of steps back down the tube? It does not seem to be readily apparent just where to best detach it at the upper end near the turbo. Difficulties? Suggestions?
The rest of the process seems pretty straightforward. I hope........
Regards,

Mine is fairly easy to take off, just loosen the clamps at the air cleaner and at the turbo and work it off. There are probably a couple of wire ties that hold the sense tube for the air filter gauge. I went back to my previous post and added the part about the thermostats. On the Georgie Boy after the hose blew the first time, I replaced it and 2 miles later it blew again because of the bad thermostat, it was stuck in the closed position. At that point I called for a tow still not knowing the real problem.

Re: 1996 U270 Coolant Hose blow out and Repair Problems - Suggestions

Reply #7 – October 29, 2013, 07:36:44 pm

The coolant leak has been resolved with the appropriate fancy hose.
The hose looks like an elongated S and you cut off what you don't need and keep the rest for later.
Installation was not too difficult but was tiring working all stretched out and digging in the drivers side of the engine. I still have to do the straight hose on the other side of the engine.
Thanks to all for comments and suggestions.
There is another hose coupling very close to the blown hose that I was replacing and so I called Cummins in OK CITY and stopped and got one. Cummins part and I was not able to find a generic. After I picked it up in the parts dept, I went over to Service and asked them how much it would cost to replace it.
$140 or so, the man said. Just to replace the coupling. Seems a bit pricey to me.
Tonight, when I parked in Weatherford, OK I noticed that my leveling system is whacko again. It never ends, does it.

Regards,

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1996 U270 Coolant Hose blow out and Repair Problems - Suggestions

October 28, 2013, 02:38:26 pm

Re: 1996 U270 Coolant Hose blow out and Repair Problems - Suggestions

Reply #1 – October 28, 2013, 05:49:55 pm

Re: 1996 U270 Coolant Hose blow out and Repair Problems - Suggestions

Reply #2 – October 28, 2013, 07:12:26 pm

Re: 1996 U270 Coolant Hose blow out and Repair Problems - Suggestions

Reply #3 – October 28, 2013, 08:21:15 pm

Re: 1996 U270 Coolant Hose blow out and Repair Problems - Suggestions

Reply #4 – October 28, 2013, 10:23:42 pm

Re: 1996 U270 Coolant Hose blow out and Repair Problems - Suggestions

Reply #5 – October 29, 2013, 08:47:25 am

Re: 1996 U270 Coolant Hose blow out and Repair Problems - Suggestions

Reply #6 – October 29, 2013, 09:53:59 am

Re: 1996 U270 Coolant Hose blow out and Repair Problems - Suggestions

Reply #7 – October 29, 2013, 07:36:44 pm

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