| Author | Message | ||
| R.C.Bishop (Chuckllb)
Registered Member Username: Chuckllb Post Number: 52 Registered: 7-2006 Posted From: 4.240.141.198 Rating: N/A |
For several years I have pondered the value (or none) of the rear "flaps" on a 40 foot coach. In my particular case,Crown Supercoach, it is about 10+- feet or so from the rear bumper to the back of the wheel well on the tandems where the flap is attached. Mine need to be replaced due to condition. The length of the space does not appear to be any advantage to throwing stones if the flaps were not in place. There are about 30 inches or so of Diesel tank, some open space and then the "trunk" bed of about 5 feet, plus a foot or so for the bumpers. Any ideas out there before I look for a new conveyer belt( the ones in place now are only the width of the duals) In the front, however,(behind the front wheels) the flap goes the entire width of the coach...this , I am led to understand is to control the amount of pressure, etc. The pancake engine is amidships, just behind the front wheels. Comments would be appreciated....  Thanx, RCB '64 Crown Supercoach (HWC) | ||
| Kyle Brandt (Kyle4501)
Registered Member Username: Kyle4501 Post Number: 267 Registered: 9-2004 Posted From: 65.23.106.193 Rating: N/A |
I like what UPS does on their trucks with the brush around the wheels to minimize road wash. I'd put flaps on to keep road debris off my undercarriage. That front full width has a big effect on air movement under the bus, the factory knew this. Good Luck, kyle4501 | ||
| RJ Long (Rjlong)
Registered Member Username: Rjlong Post Number: 1159 Registered: 12-2000 Posted From: 71.195.127.101 Rating: N/A |
RCB - On your Crown, the full-width front flap is there to create a low pressure area immediately behind it. This low pressure helps draw air thru the radiator, so removing the flap would have an adverse effect on your cooling system. GMC used the same principal on it's coaches, except at the rear axle. (Was interesting to see many of the GMs in Arcadia this year that either had no flap at all, or had hung one off the rear bumper - which now traps hot air under the engine, a no no!) The rear flaps are basically there to reduce the risk of road debris being flung off the tires from doing damage to the undercarriage and/or the vehicle following you. So, time to start looking for some used conveyor belt!! FWIW & HTH. . . | ||
| R.C.Bishop (Chuckllb)
Registered Member Username: Chuckllb Post Number: 53 Registered: 7-2006 Posted From: 4.240.144.131 Rating: N/A |
RJ>that's what I was looking for and had concluded, but as you know, there is strength in numbers.... Both need replacing. Kyle, thanx for your comments. I have noted, that the bottom only of the rear flaps are the problem. Some one mounted a metal weight bar across the width and that is pretty well torn up. Front is not as bad, but still is an eyesore...to me at least. Have any idea how far off the deck the optimum cut would be? My manuals don't address that subject. Ain't this a great "hobby"....$$$$$! RCB | ||
| Bob greenwood (Bob_greenwood)
Registered Member Username: Bob_greenwood Post Number: 543 Registered: 7-2006 Posted From: 64.136.49.228 Rating: N/A |
2 or 3 inches.......... I've got a couple hundred feet of 24 inch conveyor belt you can have all you want to pay shipping on..but,you will have to wait till I migrate north in the spring | ||
| R.C.Bishop (Chuckllb)
Registered Member Username: Chuckllb Post Number: 54 Registered: 7-2006 Posted From: 4.240.141.224 Rating: N/A |
Sounds good to me, 2D, Would guess it would be about 14 feet +-. Thanx for the offer. Could be I might even pick it up..... ...but don't count on it! Thanx again, RCB | ||
| Douglas Tappan (Dougthebonifiedbusnut)
Registered Member Username: Dougthebonifiedbusnut Post Number: 14 Registered: 10-2004 Posted From: 24.62.105.169 Rating: N/A |
Hey 2D's, I'll take the same while you got the knife out. I'm going to replace the flap across the middle of my Crown also RC | ||
| Bob greenwood (Bob_greenwood)
Registered Member Username: Bob_greenwood Post Number: 545 Registered: 7-2006 Posted From: 64.136.49.228 Rating: N/A |
I'll be back at the ranch April, remind me |