| Author |
Message |
David (Davidinwilmnc)
Registered Member
Username: Davidinwilmnc
Post Number: 131
Registered: 7-2005
Posted From: 65.184.52.215
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, July 15, 2006 - 4:58 pm: | |
Hey guys,
I replaced the left side drive axle leveling valve last week. This cured the lean on that side of the bus. I found that the air bag was leaking where it meets the top plate/mount attached to the air beam. It seems that when it was installed, the nuts weren't tightened -- they were about 1/8" from contacting the plate and rusted in that position. Anyway, I ordered a new bag and hardware (bolts, nuts, and washers). I've cleaned up the mounting plates and am getting ready to paint them. There is some pitting where the rust was on the surface where the bag will seal against the plate. How critical is it that this area be completely smooth? I'm not sure that I can get it any smoother than it already is. Will the bag conform to the area in question and seal or should I use some sort of sealer on it? Other than the fact that it took me FOREVER to get the nuts removed / broken off the bolts, it seems fairly straight forward.
I also bought new rubber bumpers that keep the suspension from banging if it bottoms out. Does anybody have a suggestion for removing the old ones? All I have left is a round metal plate with a bolt rusted in it. Thanks for any input!
David |
Jack Conrad (Jackconrad)
Registered Member
Username: Jackconrad
Post Number: 452
Registered: 12-2000
Posted From: 207.30.189.72
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, July 15, 2006 - 7:59 pm: | |
David,
Here is how I replaced the bumpers on our MC-8. As with your, the bolts had rusted off and were flush with the top of the place the new bumper sits. Because there was not enough room to get a drill in there to drill out the old bolt, I took my torch and cut out the old bolt making sure not to enlarge the hole. I then cut a "window" in the side of the piece the bumper attaches to. Set the bumper in place, drop a bolt down through the hole and install a flat washer, lock washed and nut. After tightening the nut, the "window" was sealed with a piece of HVAC aluminum tape. 5 years later the tape is still in place. I used the yellow poly-urethane bumpers from International Bus & Parts. YMMV Hope this helps, Jack |
Bob Greenwood
Unregistered guest
Posted From: 63.232.212.33
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, July 15, 2006 - 10:33 pm: | |
on the rough/pitted surface that the new bag will be touching,smooth it with silacone sealer ,squrt a bunch on and get a plastic squegee and smooth it out & let it cure for a couple of days, |
Dale Waller (Happycampersrus)
Registered Member
Username: Happycampersrus
Post Number: 207
Registered: 7-2005
Posted From: 68.65.122.187
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, July 15, 2006 - 10:48 pm: | |
David,
Light pitting will be fine. The airbag will seal just fine.
For heavy or alot of pitting, sand or wire wheel the plate, then use some automotive bondo to fill the pitting, sand smooth & primer, paint.
Dale |
David (Davidinwilmnc)
Registered Member
Username: Davidinwilmnc
Post Number: 133
Registered: 7-2005
Posted From: 152.20.216.103
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, July 18, 2006 - 11:55 am: | |
Ok, I got the bag replaced... what a job! I'm sure the next one will be a LOT easier and quicker. I cleaned and painted the plates with something similar to POR-15. This is a plastic-like paint that should seal the metal and prevent future rust. I decided that the plates weren't in all that bad a shape and to try the bags without smoothing them down any. The rust-preventing paint is fairly thick and I think that helped some. The bags themselves weren't so difficult to install. Getting all those bolts through the plates and lined up sure was a pain! After about an hour and a half, I had the bags installed, all the bolts lined up and tightened, and the bus aired back up. I set the ride height at 5 1/8" (per the manual). This was last night; this morning, the height had dropped less than 1/8", which I don't consider to be all that bad. Of course, I'd like it to stay up indefinitely like the other side does. I'll check again this evening after work and spray some more soapy water on everything and check for leaks. So, after replacing a sticking leveling valve and a leaky air bag, my bus finally sits level! It's been leaning towards the left about 4" since I've had it. Thanks for the input regarding my questions about the plates.
David |
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