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oil coolers question ????
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ricogomez
Posted 2015-04-28 3:12 PM (#2669)
Subject: oil coolers question ????


Location: Houston, Texas
(69.15.202.162)		why do our FMC's have the oil coolers on the hot side of the radiators ?
are they supposed to be coolers or warmers ?
in this part of our country it gets real hot back there,
I can't even touch the rear bumper, ask me how I know ??

Rico
397
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dkarnath
Posted 2015-04-28 4:16 PM (#2670 - in reply to #2669)
Subject: RE: oil coolers question ????


Location: Medford, OR
(204.10.247.1)		You should move it. Mine is mounted below the engine start battery, and has an air scoop made out of aluminum to help with air flow.
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hemi354az
Posted 2015-04-29 11:12 AM (#2676 - in reply to #2670)
Subject: RE: oil coolers question ????


Location: Scottsdale, Aridzona
(24.251.161.115)		Hey Dan,
Thx for the oil cooler pictures. Just because some "something" was installed on a FMC when you got it . . . does not mean it works, or that it was/is a good idea.
Those fin type coolers are usually mounted in front of the radiator ram air "inlet". FMCs do not have ram air "assisted" cooling in any system except the Air Conditioning.
Please consider just how much "airflow" that oil cooler gets behind the big mud flap, and/or when the FMC is stationary or creeping along in traffic.
Certainly the in and out oil temperature indicates cooling effectiveness. Got any data for different driving, or idling, conditions ? Lou #120

Edited by hemi354az 2015-04-29 11:13 AM
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dkarnath
Posted 2015-04-29 11:51 AM (#2677 - in reply to #2676)
Subject: RE: oil coolers question ????


Location: Medford, OR
(204.10.247.1)		#184 had the engine oil cooler in the same location as 850. I dont know how well it works?

I have 3 aftermarket gauges on the dash the POx2 installed. Engine oil, Tranny fluid in/out. The wiring going to the sending units was garbled up back in the engine bay when I purchased. I haven't spent much time looking at what I need to do to get them back in service...So I cant give any oil temp readings yet.

850 also has a second engine coolant radiator mounted under the fuel tank (will take pics) and the engine bay has had some serious mods done to it to help with ventilation. The 50 or so miles I've driven it, the water temp stays at 180.

The coach also has heated holding tanks/plumbing (no idea if the heat tape works?) I think 850 spent time in the desert, and also in Canada.



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BigRabbitMan
Posted 2015-04-28 9:08 PM (#2671 - in reply to #2669)
Subject: Re: oil coolers question ????



Location: Cottage Grove, OR
(68.186.124.23)		Many of them are under the propane tank. MCR in IL liked to put them at the bottom rear of the radiator.
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hemi354az
Posted 2015-04-28 10:01 PM (#2672 - in reply to #2669)
Subject: RE: oil coolers question ????


Location: Scottsdale, Aridzona
(24.251.161.115)		Duh . . . FMCs came with oil coolers ?
Who knew ?
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B. Sitton
Posted 2015-04-28 10:37 PM (#2673 - in reply to #2672)
Subject: Re: oil coolers question ????


Location: Ignacio Colorado
(72.161.110.74)		Rico
The FMC did not come with any coolers. The ones you have were installed by a previous owner. I think using 200 plus degree engine coolant to cool your transmission fluid is a crazy concept too.
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dkarnath
Posted 2015-04-29 9:20 AM (#2674 - in reply to #2669)
Subject: Re: oil coolers question ????


Location: Medford, OR
(204.10.247.1)		I posted a couple pics on 850's album
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ricogomez
Posted 2015-04-29 10:35 AM (#2675 - in reply to #2669)
Subject: RE: oil coolers question ????


Location: Houston, Texas
(69.15.202.162)		Well...............I don't like the idea or taking a chance on the coolers being exposed to road debris.................just my personal preference..............


Rico
397
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fmc708
Posted 2015-04-29 11:58 AM (#2678 - in reply to #2669)
Subject: Re: oil coolers question ????



Location: Soquel, CA.
(73.189.141.121)		I ended up adding a transmission cooler "behind the mudflap", as Lou accurately describes it. I use one of those racing coolers with a fan attached that I can turn on and off from a switch I installed on the dash. I can say that on a good day, the improvement in transmission oil temperature when I turn the fan on might be as much as 4 degrees, if my gauge is to be believed. I could probably improve that with a bigger cooler and with larger diameter hoses going through the system. I was modifying a system the PO installed that did not seem to be doing anything.
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dkarnath
Posted 2015-04-29 1:09 PM (#2679 - in reply to #2678)
Subject: Re: oil coolers question ????


Location: Medford, OR
(204.10.247.1)		Yeah greg, thats why the in/out temps will be kinda cool see...

Any type of external cooler has to be better than not. Out of all the "front of the radiator mounted, behind the grill" tranny coolers I've had on pick up trucks (which is a lot of rigs), I have never lost one due to a rock or road hazards like we all do with windsheilds from time to time. It's the hoses that rott and start to leak. Maybe I've been lucky...
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