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Transmission Discussion of preventative/corrective maintenance and other technical issues regarding your coach's transmission.

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  #11  
Old 10-14-2008
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Pull that rear end plug! See if it's "makin metal". Probably knocked some teeth off the ring and pinion. Good time to change the gear ratio.

Dick Gideon
89 35FC
Rolla, MO
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  #12  
Old 10-14-2008
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I guess the bump-bump comment was probabably a bad analogy. It is defititely going in and out of gear. It did it a couple of times and was smooth in between for several hundred feet under load before it finally failed. A broken gear is an entirely different experience. Once broken it doesn't recover.

I do, however, have concerns about the pounding the rear end took when it was going in and out of gear. I may pay for that later on.

P.S.

No metal in the fluid here after a 20 mile tow.
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Last edited by gcyeaw; 10-14-2008 at 10:45 AM.
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  #13  
Old 10-14-2008
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Sounds more like a sprag gear going out. You'll probably have to rebuild her and the metalt shavings from the broken part will require a converter replacement (you could flush it, but there's always that one little piece that remains and buggers things up down the road.
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  #14  
Old 10-15-2008
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hey Gardner,any news?
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2000 LXI 43
Bainbridge,Ga.
Port St Joe Fl.
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  #15  
Old 10-15-2008
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Too bad the tow driver didn't drop the rear drive shaft. Much easier than axle removal, and less messy. Been there done that. Rapid loss and recovery of hydraulic pressure in the fwd clutch is unlikely. Stripped spline or broken planetary gear are more likely.
The 640 in my FC was remanned @ 150k miles. Required a good bit of hardware, my Allison man was surprised at the damage.
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  #16  
Old 10-16-2008
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The service manager and shop foreman are out sick, so they have not looked at it yet. I found a site that sells factory reman units with an 18 month warranty for $2450 including the shipping for both ways (core return). So I would expect a replacement would be the right way to go. I don't know how they could fix a serious problem any cheaper.

http://www.arsco.com/remanufactured_...ansmission.htm

So I am still waiting for the diagnosis.

Ont other thing, the engine was replaced wiht a 250 turbo back in '93. I believe the original was a 3208 na. Does anyone know the top RPM of the turbo? I want to be sure if they replace the tranny it is set up correctly for the engine. I don't know if the old one was ever re-adjusted.
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  #17  
Old 10-16-2008
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Gardener check on a completely remaned jasper transmission available in PA. I believe they have a 75000 mile US wide warranty and are highly rated.
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  #18  
Old 10-16-2008
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I am holding my breath. I called and the woman who answered said they were working up an estimate. She said the labor would be high because it had air suspension??? So you have to jack it up, what else? I think they only work on trucks and don't have the right stuff to handle a bus. I will find out this afternoon, but I am not expecting good news.
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86 PT-36 Golden Memories
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78 FC 33 Happinest (Sold)
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  #19  
Old 10-16-2008
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Red lights are going off Gardner if they talk air suspension as being more costly to replace a tranny. My mechanic removed my tranny and rolled it back on a dolly, replaced the rear main seal and put everything back together and in addition replaced the front ride height leveler in 5 hours. Part of the time there were two men as when the tranny was being pulled back and again when it was jockied into place. There is one of two things they need to do the tranny, either a lift or a pair of OTC 10 ton wheel lifts to get the front off the ground enough to remove the tranny. And they need to support the front wheels so they dont hang on the air bags if they try and do it any other way.

If it was mine I would seriously contact Jasper and get a quote on their tranny and then where to have it replaced by an authorized dealer in the area where your coach was. If you have towing insurance they should pay to have it taken to the new place.
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  #20  
Old 10-16-2008
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i agree with tom,air ride has nothing to do with the tranny.
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