ISL370 Coolant leak

July 05, 2015, 11:29:00 am

So, two coolant leaks instead of one... - iRV2 Forums

I posted for some help/input on the Cummins section of IRV2, including some pictures. But think they're some CC owners that may not read that specific forum, so posted it here to expand the input:)!

Hope all had a good 4th of July, and appreciate any input:)! Best,

Smitty

04 Allure 31017

Re: ISL370 Coolant leak

Reply #1 – July 05, 2015, 12:20:52 pm

Yahoo Message Number: 101684

You can go to Advance Auto, AutoZone, O"Reilly, etc. The rent pressure testers for 0 dollars. You leave a deposit and when you return the tool the deposit is refunded.

Mikee

Re: ISL370 Coolant leak

Reply #2 – July 05, 2015, 01:01:03 pm

Yahoo Message Number: 101686

Thanks Mikee - Yes to this, they offered me one at NAPA when I picked up the 50/50 Final Charge. I thought about it, but even with a mirror on telescoping arm, and flashlight, I have very limited visibility.

I'm talking with my wife, about tearing down the bed and removing the sliding closet doors and base so we can open the crawl hole. (Have never done this, but saw it opened up when Cummins Cal Pacific did the pre inspection punch list for me. They had to open the valve cover to adjust the high setting for the Jake, as it left the factory not completely closing the valves.).

If I don't spot something from the top view, I'll go get the pressure tester and see if helps...

Suspect this will be one of those 'odd one's' (It's in our nature as a couple, to have odd things happen. Sitting in the RV Space yesterday, went outside with my first cup of coffee - and had a small lake in our grass spot. The landscaping irrigation buried pipe had ruptured, and we had a nice stream of brown water flowing about 2" deep. Park got them line valve shut off. Then we had to bump and roll with the office battling the computer system to allow us to 'move' to another spot!! Finally got one that worked out well for us, but it was touch and go for awhile... A bit of LOL moment, when the nice work camping lady said 'I can't move you to that spot, as it costs more, and the computer won't let me assign it to you without additional payment.'. I politely suggested that she call the office manger at home, yep on the 4th, and ask her how to 'trick' the computer so we could move to the site without paying any extra. She did not understand my 'humor, when I commented that if they did that for me, I would not charge them for my time to tear down and move to another site, and I'm billable at $185 an hour! (Was kidding on all fronts, and they really were all very nice and working hard to solve this problem with the computer. Just was caught a bit off guard when one of them suggested I just pay the extra cost... it was a comment in passing, so I responded with my 'tear down and move' fee:)!)

Long way to saying, I suspect this will need a dye and light to sort out. Puzzled me that I could find nothing after running the engine for 35 mins, suspect it baked off as it slowly leaked. But then after sitting for a while not under pressure, the seepage showed up again...

Best,

Smitty

04 Allure 31017

Re: ISL370 Coolant leak

Reply #3 – July 05, 2015, 08:14:56 pm

Yahoo Message Number: 101694

Instead of using a piece of not so shiny metal held with needle nose pliers, I sprang for probably now my 4th or 5th telescoping mirror (all of there rest, are in my tool box at home - of course).

Up tucked away about 8" towards the front of the engine, at the same level as the other compression nut - is a second one. It's also a 7/16" tube, and I could see the seepage from the compression nut.

A few more trips to NAPA, to add my growing not the road tool box, and I was able to get one or two more bites to the flange nut, and snug it up some. Even with the new tools, access was difficult, and I'd feel better knowing that I had had a good bite on the nut, and had it properly 'snugged up'. But, no seepage after two hours.

When the people around us head out for a bit, we'll run the engine and I'll look again. I feel better, knowing that even it does start seeping again, that it's not a hose about to rupture. I suspect a well stocked mechanics tool box, and a nice pit to stand up in to get up and into engine area with this compression nut - would make short work out of getting it properly tightened.

Still no clue as to where these two pipes go, both from the engine block.

Best to all,

Smitty

04 Allure 31017

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