| Author | Message | ||
| Sam Summers (Greyghost)
Registered Member Username: Greyghost Post Number: 49 Registered: 4-2011 Posted From: 72.35.193.222  Rating: N/A |
So Sunday I opened the 2 drain valves on the air tank located in the evaporator compartment. Big oil spot now on the ground where the drain hose goes out. Question is,,, why did the oil come from the air tank? Blacker than Black! | ||
| Tom Caffrey (Pvcces)
Registered Member Username: Pvcces Post Number: 1376 Registered: 5-2001 Posted From: 65.74.69.252 Rating: N/A |
The compressor is passing oil. The thing you need to know is how fast. Draining that tank every time you use the coach will tell you if you need to replace the compressor soon. Often, these tanks don't get drained regularly. At this point, you don't know how long since the last time it was drained. For what it's worth. Tom Caffrey PD4106-2576 Suncatcher Ketchikan, Alaska | ||
| Gus Causbie (Gusc)
Registered Member Username: Gusc Post Number: 1338 Registered: 11-2005 Posted From: 173.202.14.54  Rating: N/A |
Sam, Were both tanks black? The tank half on the right is the dry tank and shouldn't be too bad normally.I have the same problem with my 4107 but in the wet tank (left half) only but mine isn't black it is sort of a dark brown. At first I suspected the air cleaner was too full of oil and oil was being sucked into the air compressor because the intake hose was oily at the top connection. (The ac intake is directly from the muffler looking gadget at the top of the engine.) I changed the air cleaner oil and made sure it was not overfilled but haven't driven it yet. I'm highly suspicious that it is the ac failing just as Tom says. I also replaced the ac intake hose because it was thin walled and soft. Since it is under a lot of suction it needs to be thick walled. When I first got my 4104 and drained it for what was probably the first time in years it was also really black so yours may be ok once you start draining it regularly. That is a beautiful bus, wish mine still looked original. (Message edited by gusc on June 28, 2011) | ||
| Sam Summers (Greyghost)
Registered Member Username: Greyghost Post Number: 50 Registered: 4-2011 Posted From: 72.35.193.222 Rating: N/A |
Thanks for the info Guys! The PO said he had recently (?) changed the AC and it is a different color than the block. Gus, it was mainly coming out of the left side when I opened it up, I will check the hoses and make sure they look good. Thanks for the comments on the bus, I plan on leaving it like it is, no caps. I just pulled out the destination window and retinted the glass, if you know of anyone with a good rubber glass seal for this window mine is basically shot and is in need of new. Tail Light lenses also! | ||
| Tom Caffrey (Pvcces)
Registered Member Username: Pvcces Post Number: 1377 Registered: 5-2001 Posted From: 64.255.164.53 Rating: N/A |
Sam, you might try your local glass shop. If memory serves, that glass can take a common locking rubber. Good luck. Tom Caffrey PD4106-2576 Suncatcher Ketchikan, Alaska | ||
| RJ Long (Rjlong)
Registered Member Username: Rjlong Post Number: 1818 Registered: 12-2000 Posted From: 71.195.124.20  Rating: N/A |
Sam - Agree with Tom on the rubber gasket around the destination sign - it's common, and most glass shops should have access to it. As for taillight lenses, IIRC, your coach has the large 7" diameter ones. These should be available from any school bus parts supplier in your area, or online. Might consider changing the entire assemblies to LED. They're quite common on skoolies nowadays in this size, so the price has come down significantly. Less current draw, longer life, win-win! FWIW & HTH. . .  | ||
| Bob MacIsaac (Wildbob24)
Registered Member Username: Wildbob24 Post Number: 135 Registered: 5-2007 Posted From: 98.92.175.227  Rating: N/A |
Sam, While the LED suggestion is a good one, I like the look of the original lenses, especially on an an original bus like yours. I bought replacement lenses here: http://www.schoolbuspartsco.com/WebPages/lightingproducts/lighting_bdbr.html They are the "Catseye 55" lenses about 2/3rds of the way down the page, on the left. Mohawk has the gaskets here(showing 254 of them in stock): https://www.mohawkmfg.com/shop/part/21279/ The original gasket part# 2471215 is superseded by part# 708845 Bob | ||
| Sam Summers (Greyghost)
Registered Member Username: Greyghost Post Number: 52 Registered: 4-2011 Posted From: 72.35.193.222 Rating: N/A |
Thanks Bob for the Link |