Excess Heat Turbo area

[wrayelwood]

WinnebagoJourney DL / Freightliner Turbo Excess Heat to area-


I have had issues with High Heat-in the Turbo area to the point of 'Meltdown' of plastic wiring harness and actually cooked the starter!
Was on a steep 8 mile climb pulling in 2nd/ 3rd gear (no tow vehicle) When I arrived at destination could smell plastic as well as strong burning smell.
Went to start vehicle-was a loud explosion sound then nothing? Relocated melted plastic of harness-checked connections-still no start.
Upon closer inspection-starter had melted insulation of field coils leaking out-removed starter-internal was shorted and when I attempted to start
it 'exploded' due to direct short of windings. Replaced unit and installed a heat shield between turbo/starter.
Was on another Trip recently and was climbing to 1700 metres 3rd/4th Gear-after 15 minutes temp rose to 3/4 of gauge-concerned turned on
heater to cool down. Checked Turbo heat-approx 800 F. Decided to fabricate a air cooler to cool down the area of turbo.
After installation on a steep climb-turbo temp 370F so am not concerned of heat problems. No increase in water temperature !
Previous year saw a Motor home burn to frame rails-(was towing a full size vehicle) in Fraser Canyon B.C.-which caused a large forest fire. HMMM?
Turbo Cooler DSC00007-2 (2).jpg
I have other issues to bring to owners attention- One at a time !!
I like the Motor home- just not satisfied with the 'Pride of Workmanship' 'Close enough' Warranty can fix it !

[Petro]

wrayelwood;

Sorry to hear of your problems. Please keep us posted on your issue. I am sure there is a lot of interest as to the cause and solution to your problem.

Don

[Wizard]

wrayelwood,

What engine are you running ??

[wrayelwood]

Quote:

Originally Posted by Petro wrayelwood; Sorry to hear of your problems. Please keep us posted on your issue. I am sure there is a lot of interest as to the cause and solution to your problem. Don

Hi Don I am retired from the automotive & Race car industry.
The cause of the problem-is/was that it would be sufficient clearance at
level driving area but when you start to pull on steep 2nd/3rd gear pulls with little ventilation-you need room away from combustible material for the heat not to cook things. Oil lines that feed the turbo are approx 1" away from the heat source, wiring loom was approx 2" away with little air flow.
With the air vent that Is in place turbo temp was reduced as well as no coolant temp increase on long pulls, oil temperature was reduced as well.
As I wrote in my other article-
I enjoy/like the design of the unit, but the workmanship that I am finding in cabinetry-stripped or missing retaining screws etc, wiring which I will write about later is not to what I am accustomed to..
Thank you for your interest/input.
Wray

[wrayelwood]

Quote:

Originally Posted by Wizard wrayelwood, What engine are you running ??

2003 Cummins 300 hp