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Old 09-13-2017, 02:43 PM   #15
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http://www.cgj.com/store/category/motorhome-radiators
Is building a new intercooler radiator.
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Old 09-14-2017, 03:53 PM   #16
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The replacement arrived and is being installed
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Old 10-19-2017, 10:32 PM   #17
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Larry, any updates you can share with the recent repairs to your MF10? I too starting to have parked regen problems again. thanks.
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Old 10-21-2017, 08:01 AM   #18
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Since the repairs, exhaust manifold and exhaust sensor, I made had 2 parked regens. Computer is showing 7.8 mpg.
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Old 10-27-2017, 06:56 AM   #19
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The boost was 0 for several seconds when starting from a stop. The rpm's would have to build a lot, like shift to 2nd. It would hard to hit 38 under load.

Yes it does passive regen. But the tech said the doser valve was not functioning correctly and dumping a stream of diesel and not a spray of diesel in the passive regen.
While having the crankcase vent system installed under warranty the 2 turbo's were checked . Found the larger turbo had end play, should be none, replaced. The smaller turbo spools up quickly and is designed to work from stop to 5-10 MPH while the larger turbo spools up to speed. Any end play is a warranty replacement issue. Fairly easy replacement.
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Old 10-27-2017, 09:06 AM   #20
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While having the crankcase vent system installed under warranty the 2 turbo's were checked . Found the larger turbo had end play, should be none, replaced. The smaller turbo spools up quickly and is designed to work from stop to 5-10 MPH while the larger turbo spools up to speed. Any end play is a warranty replacement issue. Fairly easy replacement.
How many miles on your coach, kind of surprised to hear of end play on the turbo.
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Old 10-27-2017, 09:57 AM   #21
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How many miles on your coach, kind of surprised to hear of end play on the turbo.
Spec is zero end play. Turbo wasn't spinning freely either. Found out turbo's come in kit form. All work done on the top side of the coach. Larger turbo was fine. Something everyone should have checked approaching end of warranty. I din't notice any problem in driveability so I'm glad they checked it.
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Old 10-27-2017, 02:38 PM   #22
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How many miles on your coach, kind of surprised to hear of end play on the turbo.

26K miles. Borg Warner turbo's. No way to notice other than taking the turbo apart. They replaced the impeller which came with all bearings, just dropped in. Easy install. If anyone is having any warranty work done...check the turbo's.
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Old 10-27-2017, 03:41 PM   #23
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26K miles. Borg Warner turbo's. No way to notice other than taking the turbo apart. They replaced the impeller which came with all bearings, just dropped in. Easy install. If anyone is having any warranty work done...check the turbo's.
Also, I was at Rush Trucking because the closed crankcase vent system was blowing oil. Look at driver's side lower part of the block and you'll see a canister that traps vent oil and puts it back in the crankcase. The system fails and there are various kits for various MF10 engines. Navistar is not notifying customers but will repair if the owner indicates the oil leak. Big repair that includes a new valve cover. That's when the mechanic looked at the turbo's since he was working in the area.
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Old 10-27-2017, 04:17 PM   #24
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Also, I was at Rush Trucking because the closed crankcase vent system was blowing oil. Look at driver's side lower part of the block and you'll see a canister that traps vent oil and puts it back in the crankcase. The system fails and there are various kits for various MF10 engines. Navistar is not notifying customers but will repair if the owner indicates the oil leak. Big repair that includes a new valve cover. That's when the mechanic looked at the turbo's since he was working in the area.

Thanks for the heads up, will give it a good check as my warranty is up next spring.
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