| Author | Message | ||
| Bob Damm (216.134.162.222)
Rating: N/A |
The MC-9 our Church/school bought seems to have a tendency to lean a little to the left, never to the right. It will also rub the front left tire on the inner fender on sharp slow right hand turns. I know from the posts on this site that there are leveling valves but I know nothing about how they work or adjusting them. Is this relativly easy, or is it something a shop can do quickly? Thanks, Bob | ||
| R.J.Bob Evans (64.110.227.72)
Rating: N/A |
We have that problem too - our churches, schools and anything they touch tend to lean to the left. Sorry -- I couldn't resist. :-) Do you have any noticeable air leaks? | ||
| ChuckMC9 (Chucks) (68.240.99.211)
Rating: N/A |
Here's what I've noticed on my 9er...am not sure if this fits your situation, but bothered me at first until I kinda understood what was happening... When I stop and kill the engine immediately after having made a very sharp turn which required going up or down a fairly steep slope, it leans hideously until restarted and back on the road when it levels out, or the system fades down after several days. This causes the coach to be at a sharp diagonal angle during that turn. Here are three situations in which it *always* happens: 1.) There's a certain gas station (oops, FUEL station) that has a sharp right then a very sharp left immediately after a fairly steep ramp up from the street. When stopped at the pumps, it is *always* leaning. Fixes itself later on the road. 2.) I park in a spot in which I have to make a hard left while backing up, *up* a fairly steep slope. It *always* leans until the air has faded down. 3.) Upon departure down a certain driveway while at a 90¡ angle to the street, I have to make a hard right onto the street, again down a slope, and it stays leaning for a short while. PS to Bob: Yeah, but any vehicle tuned into a talk radio station leans the other way!  | ||
| Bob Damm (216.134.162.222)
Rating: N/A |
As far as air leaks goes, when I park after diving it I often hear air leaking from around the back driving axle, usually from the right side but sometimes from the left, it will stop after a few min. I stoped at a shop one day and it was leaking in the parking lot while I was talking to the mechanic, then he had me pull it into the shop and then not a sound, he had me work the brakes and all seemed well. He told me the air was probably the suspension adjusting to the ground level (not his exact words). It never leans to the right, and only scrubs the left front tire. I can drive for miles down the freeway and it feels pretty upright, then take an exit that ends in a hard right turn and I will most likely scrub that tire. Is this a common thing? Do any of them ever lean right? Is this an adjustment problem? I'm just trying to figure out what is normal for this rig and what might need to be fixed. | ||
| Scott Whitney (69.35.62.177) Rating: N/A |
I don't know about 9s but there is almost certainly an adjustment on the rods that control the ride-height valves. The maintenance manual would tell you from what points to measure and adjust the ride height for both sides and front to back. WARNING: Don't go crawling around under there playing with air bags unless you have it safely blocked up from the ground to the frame using heavy timbers. If at all in doubt about what you are doing, take it to a bus garage where they can take a look. Scott | ||
| Bill Gerrie (209.50.74.69)
Rating: N/A |
Bob If you are leaning to ether side it will be one of the rear leveling valves. The one on the front is only for the up and down of the front end. The two on the rear are the ones that control the up and down of the rear but also the side to side lean. They are adjustable to a certain amount but as Scott says BLOCK THE BODY before you go underneath the coach. If you blow an air line you can't get out fast enough. The valves are repairable but are cheap enough to replace. Bill | ||
| joe shelton (64.222.179.196) Rating: N/A |
You need to be sure of what its doing: If she responds the same way every time and is never level then it may be an adjustment. if she rides level sometimes and not at other times or if she is slow to recover to level after a turn, I don't think adjusting the valves will help. If is a valve I'm guessing it is your rear left. Adjustment consists of changing the length of the link (connecting the valve to the suspension). And in some installations (like my 4106) you do this by simply bending the link. Start by checking with a level while sitting on level payvment. Then drive around some of those turns and check agian. ChuckMC9 suggested it is a MC-9 kind of thing. I'm a GMC man so it may be the way it is for you poor MC-9 folks. |