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Date Posted |
Forum
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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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Pecking Order Gas Coaches under 35'
OK, very familiar with diesel pushers, but not with gas coaches.
So, of the major brands (Newmar, Fleetwood, Tiffin, Winnebago, Thor, etc) what is the model pecking order from high to low. 2007 and newer.
Please no "my choice was best"-- more within each manufacturer you are familiar with, what are their highest end/most expensive on down.
Newmar:
Fleetwood:
Tiffin:
Winnebago:
Thor:
Other brands I haven't listed:
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wolfe10
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06/14/20 08:01am |
Class A Motorhomes
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RE: Power max converter keeps blowing 30 amp fuses
12.3 is basically a 50% discharged battery.
Check it again after the converter has been running for several hours.
Readings with converter on should be in the 132.- 13.5 VDC range.
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wolfe10
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06/09/20 06:15am |
Tech Issues
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RE: Power max converter keeps blowing 30 amp fuses
Two things:
I would move those reset-able breakers out of the battery box (sulfuric acid and hydrogen gas do not play well with electrical components). Actually, I would both move and replace them-- they look like they have already taken a beating.
Reorient your inner battery cabling so that you can access the batteries to check water level.
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wolfe10
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06/08/20 10:30am |
Tech Issues
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RE: Tire covers
A report awhile ago showed that tire covers don't do anything to protect the tires from UV rays BUT do tend to keep the tires cooler in the hot sun which adds to their life; in white, of course.
Would appreciate a link to that report.
I would have assumed that most of the tire covers do block UV.
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wolfe10
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06/08/20 10:21am |
Class A Motorhomes
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RE: Refrigerator cooling question
In order to get the most accurate information on the ARP controller, I e-mailed the engineer who designed/manufacturers it. Here is his e-mail back to me. His answers in bold:
The ARP device shuts your fridge off if the boiler gets too hot.
This is correct.
Not exactly the best thing for keeping the beer cold,
This is incorrect, the boiler overheats because it is no longer producing refrigerant. Restated, ammonia is the refrigerant, and when it does not get back to the boiler to drive the system, the heat of the boiler actually heats your beer in the fridge.
but it might keep your RV from burning down. My temp sensor is right above the upper fins in the back. Right near the bottom of the baffles that lead to the roof vent.
This is incorrect, the ARP (aka Fridge Defend) boiler sensor goes on the boiler when one installs according to the instructions.
PS. what burns down an RV is NOT a overheating cooling unit.
This statement is totally inaccurate, it is the destruction of the corrosion inhibitor that results in a leak. The corrosion inhibitor is what protects the cooling unit from a leak, and overheating of the boiler is what destroys the corrosion inhibitor.
What burns them up is a LEAK in the cooling unit and the LP flame "may" ignite the Ammonia.
This is also totally inaccurate, most absorption fires happen at around 2am to 4am in the morning when on shore power.
Also a dirty LP burner will cause a flame flash and ignite areas around the Cabinet and cause a fire.
______________________________________________________________________
So the ARP unit will not necessarily guard against fires in the refer, only against overheating in the flu.
This is not true, the ARP boiler sensor is mounted to the boiler tube, not the flue tube.
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wolfe10
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06/05/20 11:13am |
Tech Issues
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