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Cooling vent
Has anyone tried to put a scoop vent on the radiator door so driving down the road it would force air throw the radiator for extra cooling ?
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6 Replies
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Ram air would be great, but you have to extend the ram air louvers more than 6″ to force enough air through the radiator and the intercooler for it to pay off.
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Are you having a cooling problem? Is that what prompts you question?
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Dick asked the right question. When an owner is having problems cooling the engine the solution is to make sure the cooling system is working as intended. Any other solution is akin to taking an aspirin for a brain tumor.
Our coach engine installations and cooling systems have been tested and certified under extreme conditions so the engine manufacturer could stand behind and honor the engine warranty.
A Series 60 engine is designed to run in the 200F range and an engine with a working 2 speed clutch, a tight fan shroud, a radiator that is not occluded as a result of poor coolant maintenance is unlikely to ever have cooling issues. When I have pulled the steepest hills on the hottest days towing a heavy Hummer behind a 53,000 pound coach I see my temp gauge reach just below 210F, at which point the high speed clutch engages and the needle heads south in a hurry. If under the same conditions I observed the temp continuing to climb I would lock the clutch just to rule out a clutch issue, and if that cured the problem I would give serious consideration to replacing or recoring the radiator.
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No it seems to be fine, I’m use to a Cummings with a 180 or 185 degree t-stat with hydraulic fans that it sat at 180 185 degrees all the time but! this is the big thing about that,on a large hill on a hot day the Cummings temp would rise and keep rising, on the Prevost driving on a hot day it will slowly rise to 195 degrees then drop down and I’ve never seen it much over 195 degrees , Also sense we have bought this coach I have never run the dash AC, 1st trip last year to Oregon it was cold and dash heat was good, but April and May our 1st Big trip it got warm enough to use the AC, But the dash blew hot air with out the AC on, In AZ called Andre that has same coach and he had me turn off the big gate valve in the back at engine and then it blew cool air, I guess the electric valve under front for temp knob must be bad. But anyways at this that point, I had never tried the dash AC and being a long way from home I declined to try the dash AC so I ran gen and used roof AC’s. Sense we have been home I’ve ran engine on fast idle and dash Compressor came on and the big fan came on high speed, that’s quite the fan lots of air, So when driving does that mean the coach will run cooler running down the road?? About the scoop I just thought a little extra air would be better, like a front engine vehicle air forced thought radiator.
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On dash air coaches, engaging the dash air automatically engages the fan. At that point the engine heat is controlled by the thermostat as opposed to the fan clutch.
If you are running at 195 or thereabouts you have no cooling system issues.
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Thanks’ Jon We love this coach, Our 1st one was a 1980 Liberty pic on bottom
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