| Author |
Message |
Ross Carlisle (Rrc62)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 17, 2005 - 8:57 pm: | |
Hi All. I haven't posted in a while. I took a couple years off from the bus project. Back on it now and trying to get it usable before summer ends. I have a little play in the passenger side kingpin. The top of the tire will move in and out 1/4" or so. I have two questions here...
(1) Has anyone done a kingpin in the driveway and are any special tools required?
(2) How much kingpin play does it take to fail an inspection, generally speaking? I know it will vary, but is 1/4" movement at the top of the tire excessive? The bus drives pretty well.
Thanks....Ross |
Sojourner (Jjimage)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, May 18, 2005 - 8:35 am: | |
1) Question…You need hydraulic puller tool and special made bushing remover & driver that in design spec as per MCI-9’s manual. My suggestion is to find a good bus repair shop such as bus charter or they can refer to one. It Heavy flesh-cutting work if you don’t have all the proper hand & heavy-duty air tools.
2) Question…proper way of checking king-pin wear…
Be sure wheel bearing is adjust to no-play or bind as per DA book.
As per MCI-8 manual…If you have more than ¼ of 1 degree which is .183” (almost 3/16”) for 42” dia tire movement with fresh chassis grease then you have wear in bushing and/or pin.
Less movement the better to least possible wandering on groovy pavement and tire wear improperly.
If king-pin wear is within limit then back-off axle’s nut 1/8 turn (readjust wheel-bearing play). Make sure the locking tab or key set in fully for your safety.
By all mean whether you do your own repair or not……purchase (unless you already have) a MCI-9 repair and body manuals (2 books) and better yet Engine and transmission manuals (2 books) so you have reference in your hand to understand what mechanic is talking about.
FWIW
Sojourn for Christ, Jerry |
Ross Carlisle (Rrc62)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, May 19, 2005 - 4:05 pm: | |
I have the manuals (I forgot I had them). I bought the parts from US Coach. I'll pull the knuckle off myself and let the truck shop press and ream the bushings. I have averything but the tools for replacing the bushings...and since the parts kit comes with a new kingpin, I don't have to worry about damaging it getting it out. Luke @ US Coach says that sometimes they come out easy, sometimes they don't. We'll see....
Ross |
Sojourner (Jjimage)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, May 20, 2005 - 10:16 am: | |
You’re in good hand with Luke at US Coach.
You could use 18t per 1" hack-saw with tape-wrap for handle. Hand cut thru bushing's wall so it weakens to slide out. Be careful not to cut grove in knuckle bushing retaining wall.
Sojourn for Christ, Jerry |