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Date Posted |
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RE: FORD 460 Overheating Mystery
maybe wrong but I believe clutch fans after about 50 mph aren't needed and disengage
A significant factor here is how is AIR FLOW there is through the radiator???
If the coach maker made sure that any air that comes in the grill goes through the radiator-- likely accurate.
If behind the grill is totally open and there is less resistance for air to in the grill and out the bottom or wheel wells, NOT SO MUCH.
It is air temperature that locks up the fan/fan runs on HIGH.
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wolfe10
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07/12/20 05:13pm |
Class A Motorhomes
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RE: Synthetic Trans Fluid
IMO, doing two changes back to back is a total waste of money.
With the first change from Dexron to Transynd, Allison's recommendation is merely to follow the change schedule for Dexron.
Yes, with the second change using Transynd, you go to the much longer service schedule allowed for Transynd.
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wolfe10
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07/11/20 08:04am |
Class A Motorhomes
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RE: Synthetic Trans Fluid
Change your transmission fluid on a regular basis. It's cheap insurance.
Concur !
I usually also tell people to use the OEM recommended fluid.
So, you are recommending going from Allison's Transynd BACK to Dexron???
Transynd did become the OE fluid shortly after 2002.
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wolfe10
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07/09/20 07:57pm |
Class A Motorhomes
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RE: Synthetic Trans Fluid
Suspect somewhere between every year and every 10+ years (based on your miles/yr) is the correct answer.
Were it me, a fluid and filters change every 5 years with your few miles per year should be fine as long as not other issues (like coolant in fluid, fluid discoloration, etc).
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wolfe10
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07/09/20 06:50pm |
Class A Motorhomes
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RE: Help No power at dashboard won't start
The only effect on the 12 VDC systems would be that you likely blew out your converter or inverter/charger so the batteries may be dead.
Start by checking voltage at both chassis and house batteries
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wolfe10
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07/08/20 12:20pm |
Tech Issues
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RE: Wind noise E-450
Hi,
The noise level dropped greatly after I added Air Tabs. They did little for the mileage. Handling was improved. Before air tabs I had to shout--after air tabs ordinary conversation levels were possible.
Familiar with air tabs at the rear of a coach.
Can you describe exactly where you placed them up front?
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wolfe10
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07/03/20 06:57am |
Class C Motorhomes
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RE: Running Hot!
There is no Tow Haul on Allison 3000 transmission.
And economy mode ON is OK as long as YOU select the proper gear (higher end of engine RPM range and less than full throttle).
If you expect all automatic, then on long steep grades keep it in performance mode (which is the mode it starts in every time you start the engine). The problem I see with that is that you have decided that it is smarter than you. May be true, may not-- depends on the driver.
Said another way, a smart drives is PROactive-- seeing what is happening where you are now and what is coming up. While the transmission can only e REactive-- seeing what happened well behind you.
No rights or wrongs here-- but the Allison does allow you to treat it like a manual transmission in terms of selecting the right gear.
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wolfe10
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06/30/20 10:21am |
Tech Issues
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RE: Running Hot!
What are you considering hot? 210 degrees for short stints is pretty normal usually once cresting the grade they will cool off settle back in around 180-190.
While absolutely true, I would suggest that once coolant temperature rises above thermostatic control (fan on high speed on side radiator systems) one needs to start addressing the condition.
That likely means lower gear, higher engine RPM and backing out of the throttle. Using this technique,we have successfully climbed long 6+% grades in 100 degree weather without coolant temperature rising more than 10-12 degrees F from thermostatic control. And, passed other DP's on the side of the road with severe overheating under exactly the same conditions.
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wolfe10
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06/29/20 07:41am |
Tech Issues
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RE: Running Hot!
Thanks.
Is there any way to access this from under the coach (knowing full well this will get me wet and dirty!). I’ve been under the bedroom once and the engine cover is so tight it took me 2 days of prying and pounding to get under the bedroom. I really don’t want to go through that again!
Thanks.
You will just have to crawl under and check. Look at the perimeter, not center of the CAC (the fan blades sling the dirt to the perimeter).
And, yes, if overheating, operate about 200 RPM under max HP RPM for your engine at less than full throttle. Higher RPM turns the fan and water pump faster and less than full throttle reduces heat load. Do NOT run dash A/C when overheating.
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wolfe10
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06/28/20 09:09pm |
Tech Issues
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RE: Running Hot!
Clean the front of the CAC as well as radiator. Access from bedroom or closet depending on floorplan.
Needs to be done annually.
A garden hose and Simple Green Extreme (will not harm the aluminum CAC)and an old pair of clothes you don't mind getting dirty is all you need.
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wolfe10
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06/28/20 12:07pm |
Tech Issues
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RE: New Ford Chassis
The Chevy/Workhorse P chassis had IFS. NOT a poster child for a good gas chassis!
The Workhorse W with solid front axle was a real step up.
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wolfe10
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06/24/20 05:19pm |
Class A Motorhomes
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RE: No 12v power to Motorhome?
Agree, 30 VDC makes no sense. Even if the 12 VDC batteries are wired in series instead of parallel like they should be, that would suggest that each battery is at 15 VDC???
12 VDC batteries at rest will not exceed 13 VDC each. And, no 12 VDC charger would be able to charge to 30 VDC unless badly malfunctioning.
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wolfe10
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06/24/20 01:24pm |
Tech Issues
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RE: Grease on rear wheels
Your rig doesn't have an axle seal. It has a hub seal and an axle gasket. From your description of the leak, you probably have a failed axle gasket or loose axle bolts. THat type of leak will not affect your brakes
Richard
This is likely the correct answer. Check with his axle manufacturer or chassis maker if he doesn't know the axle manufacturer/model (plate on the rear axle will have that info), but likely just a leaking gasket. NOT expensive.
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wolfe10
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06/21/20 06:00pm |
Class A Motorhomes
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RE: Tire Load Rating Questions
Be aware that many tires with higher load ratings (like many going from G to H) have higher load carrying capacity AT HIGHER PSI's.
In some cases, those PSI's are above the rating for the OE wheels. So, verify mad wheel PSI before assuming you can carry the PSI to give you those higher load carrying capacities.
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wolfe10
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06/20/20 12:12pm |
Tech Issues
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RE: Length of time diesel fuel stays good in tank
Particularly if the tank is full (to minimize condensation) you should be just fine with the Biocide you added.
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wolfe10
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06/20/20 06:41am |
Class A Motorhomes
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RE: ScanGauge vs UltraGauge
Had and appreciated the Scan Gauge on our last two coaches.
If you drive using instant MPG and percent throttle position, it will pay for itself in less fuel consumption.
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wolfe10
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06/18/20 06:16pm |
Class C Motorhomes
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RE: Climbing steep grades...
WHAT goes above 225 degrees F? Coolant? Transmission?
What effect does going to a lower gear and less than WOT do for temperature?
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wolfe10
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06/16/20 05:17pm |
Class C Motorhomes
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RE: Pecking Order Gas Coaches under 35'
Newmar: Canyon Star, Bay Star, Bay Star Sport.....Dennis
Thanks Dennis. That is EXACTLY the kind of information I am looking for.
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wolfe10
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06/15/20 09:23am |
Class A Motorhomes
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RE: Pecking Order Gas Coaches under 35'
Let me rephrase the question-- not which brand is better, but within each brand what is the "pecking order".
As an example, within the Fleetwood brand, a Southwind is higher in the pecking order than, say a Flair.
You are talking tier lineup within brand. You should be able to determine that in each of their respective websites and by price.
Yes, that works for new. But looking at the pecking order within brand for older coaches is not so easy.
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wolfe10
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06/14/20 11:50am |
Class A Motorhomes
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RE: Pecking Order Gas Coaches under 35'
Let me rephrase the question-- not which brand is better, but within each brand what is the "pecking order".
As an example, within the Fleetwood brand, a Southwind is higher in the pecking order than, say a Flair.
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wolfe10
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06/14/20 10:08am |
Class A Motorhomes
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