| Author | Message | ||
| Bruce Henderson (Oonrahnjay)
Registered Member Username: Oonrahnjay Post Number: 650 Registered: 8-2004 Posted From: 68.33.62.50  Rating: N/A |
1) I am looking at the possibility of going to a NAmer rear axle for my bus. I have kind of a basic question -- my bus is a "pusher". Is it possible to take a rear axle from a front-engine bus or truck and "turn it around" so that the drive shaft comes from the rear instead of from the front? I can see ring-and-pinion preloads, direction of gear tooth cutting, etc. being a factor but does it matter? 2) Air conditioning - Is it possible (practical??) to have a "Y"-type compressor set so that you have an engine-driven compressor for when you're on the road and an electrically- driven compressor for when stopped. Both/either would feed a single evaporator/condensor unit. Thoughts? Thanks, BH NC | ||
| marvin pack (Gomer)
Registered Member Username: Gomer Post Number: 1111 Registered: 3-2007 Posted From: 71.55.1.12  Rating: N/A |
Bruce; The rear axle from a front engine unit has to be turned around as well as the hog head turned. If you have a unit check where the ring gear and pinion is. Hope to explain here; if the ring gear is on the left side of the pinion it will rotate one direction and opposite if on the right side.Picture turning your finger clockwise with your left hand turning away from you. Now put this on the right side andit will run backwards. GOT IT?? LOL I saw one installed in a pusher and they had to take the 3rd member and turn it upside down in order to get the proper rotation of the wheels.. It had 5 reverses and 1 forward, it also had a 2-speed axle in it . clear as mud huh? On the AC Not practical too many thing go wrong and centrifical clutches don;t work that well for that set up. Still confused?? CHESSIE!! gomer | ||
| Bruce Henderson (Oonrahnjay)
Registered Member Username: Oonrahnjay Post Number: 651 Registered: 8-2004 Posted From: 68.33.62.50 Rating: N/A |
Thanks, Gomer. That provides a lot of the info that I was looking for. I'm *sorry* that that's the answer on the air conditioning compressors but I thought that that was the way that it was. | ||
| George Martinez (Foohorse)
Registered Member Username: Foohorse Post Number: 261 Registered: 1-2010 Posted From: 68.215.72.106  Rating: N/A |
Marvin YO DA MAN, that was very well said and it reveals the wealth of engineering fortitude you carry around in an unassuming, humble, down home country charm covering. I enjoyed hanging out in your shop. | ||
| Buswarrior (Buswarrior)
Registered Member Username: Buswarrior Post Number: 1953 Registered: 12-2000 Posted From: 174.89.175.16  Rating: N/A |
The right wheel has to stay the right wheel. Think of it as if the drive train is being pushed over the top of the vehicle, front to back, drive wheels stay on the ground. Nothing really changed in their relationship to one another. happy coaching! buswarrior | ||
| marvin pack (Gomer)
Registered Member Username: Gomer Post Number: 1112 Registered: 3-2007 Posted From: 71.55.1.12 Rating: N/A |
OOHHH I am thankful that I have some smarts to try to help my fellow busnuts. They [mechanics] laughed when they tried to move it out of the shop when they got it all together and realized it weren't right LOL they even put up a sign, NEEDED A BACK-UP DRIVER LOL When ya gonna come by and see me George? New project in shop 1949 Ford unfortunalely 4-door but have 2 50's ready for a 302 HP to set in one of them. Thnks BW For your info also Gomer | ||
| George M. Todd (George_todd)
Registered Member Username: George_todd Post Number: 1165 Registered: 8-2006 Posted From: 99.56.244.104 Rating: N/A |
Bruce, The things to do are to get a "pusher" rear end, as the oiling and reinforcement aren't right when you turn a truck diff over. As BW says, the right wheel has to stay on the right, just turn the whole housing over 180, so the U-joint points backward. It will work, but I wouldn't guarantee for how long. As to the air conditioning question? Not only no, but heck no! This due to oil circulating with the Freon. All of the oil out of the non-working compressor will end up in the suction line in front of it, and when you engage the clutch, or flip the switch, you will find out one of the early laws of physics, namely you can't compress a liquid! The simple solution is two coils with the airflow over them in series. Good luck, G | ||
| Bruce Henderson (Oonrahnjay)
Registered Member Username: Oonrahnjay Post Number: 652 Registered: 8-2004 Posted From: 68.84.6.83 Rating: N/A |
Two coils, now that sounds good! Oddly enough, I have a pretty simple air distribution system in my bus -- even though it's a very unusual layout -- there are vertical ducts built into the stairs and these allow a fair amount of air to be moved out to the lower floor and up to the upper floor. I need to solve the problem of air distribution to the driver's compartment (alas for my pocketbook, I'm afraid that that might mean a separate evaporator/air handler with heater and defroster in the front but there is a perfect spot if I have to do that). And thanks for the info on the axle. There's a very large shop that specializes in heavy-duty axles just down the street from the shop in Charlotte NC but I wanted to have enough info to be able to talk with them and understand what they were talking about. |