Tim
Forum Replies Created
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Fan clutches have been a weak point in our cooling systems. I am a multi clutch customer and I am presuming others are as well. That does not make me happy given the cost and increasingly difficult job of replacing it.
Why does Prevost use clutches that fail so often? The electric fan upgrade kit was likely a means of improving MPG, but there has to be a small element of justifying the fans due to the service history of fan clutches.
We can lock the clutches, or we can go to the trouble of installing a clutchless radiator fan. But while that will eliminate the cost and inconvenience of replacing fan clutches, it will cost a lot of money in lost fuel efficiency.
Trucks seem to have a huge difference in the reliability of fan clutches. That now seems due to the fact that with the radiator out front and having wind blowing through the radiator clutch cycles are far less than what we experience.
I have a sense my fan clutch is cycling on and off at least every 5 minutes on a relatively warm day. It cycles a lot between low and high speed when climbing steep hills. So going down the highway our fan clutches engage a lot because the radiator is on the side of the coach and needs the fan engaged to draw air through the radiator. If it was out front like in a truck driving speed would be all it takes to push air through the radiator so the clutch only engages on relatively rare occasions.
What we need is a clutch designed to cycle millions of times, something not likely to happen because the bus manufacturers use so few clutches relative to what the truck manufacturers use there is no incentive for clutch manufacturers to do the development work.
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Thanks Mikee
Wow, didn’t know there was that many. Just goes to show you never stop learning
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It is a certainty that as coaches age, push in air fittings are going to start leaking.
It is also a certainty unless and until you methodically replace those fittings with compression fittings as normal maintenance takes place you will be chasing leaks.
Routine part replacement, such as air bags, Norgrens, brake chambers, house air fittings etc. will eventually fix a great deal of the air leaks, but there are so many potential leak sources it might take a concerted effort to find all the leaks.
The biggest leak will usually be the Benjamins disappearing from your wallet if you do not undertake to do the leak detection and fitting replacement yourself.
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t, Call me, it will not take long to diagnose what is going on. Could be bad pump fuse in the Aqua Hot fuse row.
Please have the fan blowing cool air, a VOM meter, cover off of the heater, be at the heater and call me.
Rudy 7 one 3 8 one 8 3234
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On our coach there is a three position switch below the dash. You can put the alarm system in “valet” mode for service access to the coach. It won’t self arm then.
I’m sure the remotes use standard frequencies and encoding but have not confirmed. You just need to pair them with the system.
See the write up mentioned above.
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Thanks, Tim, for the great answer. Turns out there’s a lot to learn in the manual….imagine that? Ha! Plunging ahead with the project. Carefully….
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Sorry I didn’t see this post earlier but this grab rail and trim has to be removed. Then slide the panel toward the door. I know your thinking there had to be a easier way to change a filter and I agree.
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I come at this from a different perspective. I never allow city water to be my sole source of pressure and volume. In other words I only use city water for tank filling so its pressure or volume of flow is unimportant. When the tank is full my tank is my water supply and my pump(s) provide the delivery and pressure so no need for any pressure regulator.
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OK, if we are going to be precise, in addition to mirrors, some coaches have heavy black rubber bumper blocks that likely add to the length, a ball hitch sticking out at the rear adds length, and if the coach has awnings the width is affected.
The height also is impacted by A/Cs, or a satellite antenna, air horns, spotlight or roof vents.
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I can not help with the campgrounds, but I can help you with the recent experience on I-95.
Crossing the new Tappan Zee is a breeze, I-95 along the coast through Connecticut can be a mess with traffic during the day. We went that way in July during mid-morning and it was mid-afternoon before I escaped. Wow!
I came back the same route at night and breezed right through. There are several travel plazas along the route and many of them have truck spots. The road is in decent shape for that part of the world.
Davy
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My 12.7 breathes some too. What’s funny is that my old 8V92T did not show any breath and did not drop a bit of oil on the ground. It did use oil either. Unlike every other Detroit Diesel engine I have ever owned like they were all supposed to do. Go figure.
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As soon as I get a coach I notify Prevost of my ownership. I think because I am listed with Prevost as an owner of my VIN I get emails from Ron Beverly of Prevost notifying me of parts specials.
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I want to thank Jon for this most valuable post. For some reason over the summer the coach lost its prime, it looks to me like dirty filters! Reluctantly filled up some bio diesel mix in Oregon coming home in the spring, definitely looks like my fuel tank needs to be drained and cleaned! I changed the filters and will head to Prevost to have them deal with the 100 gal of dirty fuel.
I picked up a sprayer and a quick coupler from Detroit, added a pressure gauge and within minutes the engine was prime and running. Very clean with our coach having the male end on the primary filter housing.
Thanks again!
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Jon
As usually, great input. Heading to Massachusetts, will deal with it when we get back. It’s annoying but nothing to disrupt the trip Guess this means another trip back to JoSam’s.
Chuck
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Thank you Jeff! I look forward to attending one of your seminars in the future!
Might anyone have any photos of a permanent mount that does not interfere with raising and lowering of shades?