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Author Topic: AutoShift Problems now general discussion on AutoShift and Clutch Systems  (Read 13392 times)
rv_safetyman
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Jim Shepherd


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« Reply #15 on: April 02, 2010, 06:04:31 PM »

 Bob, you sure made Pat and I laugh (a rare commodity right now).

Ken and I talked about his thoughts on the relays.  I mentioned that they needed to have diodes.  Not sure how all of that would work.

I called Sonnie today so that he could get in his licks Cheesy

James, I am pretty sure that it is not the engine ECM.  I have checked for codes there and no issue.  The J1939 seems to be communicating with the transmission ECM, so I am pretty sure it is in the transmission system.  I am picking up a loaner trans ECM tomorrow and will start playing with the system next week.  One problem with the AutoShift, is that it throws all kinds of codes if the connectors are not well connected.  The ECM I installed looked like it could use a good dose of contact cleaner, but I did not have any with me.  Might just be that simple.

Gary, I really did not do this conversion to obtain more power.  My 6V92 split a head and it was cheaper to do the conversion (at least the first time Angry).  As it turns out, I probably need the power.  I am at about 46K pounds with the service truck.  The 6V92 would have really struggled with that load - especially with the "hills" out here.

As I mentioned in my engine conversion article, I have really benefited with the mileage.  I have averaged 7.7 MPG over 54K miles.  My conservative calculations suggest I have saved about $4000.  Now with the second engine, I will have to drive a bunch to pay for that cost.  

It is sure to nice to drive the bus with all the gears and good power.  Now, I have to figure out how to avoid the "hooker charge" Cool

Jim
« Last Edit: April 02, 2010, 06:14:07 PM by rv_safetyman » Logged

Jim Shepherd
Evergreen, CO
85 Eagle 10/Series 60/Eaton AutoShift 10 speed transmission
Somewhere between a tin tent and a finished product
Bus Project details: http://beltguy.com/Bus_Project/busproject.htm
Blog:  http://rvsafetyman.blogspot.com/
white-eagle
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« Reply #16 on: April 02, 2010, 06:55:12 PM »

jim, if it wasn't for bad luck, you wouldn't have any so it seems.  Maybe this Easter will resurect your beast and get it working again without gremlins.  make sure you go to church sunday.

i'm almost to the point where i'm ready to buy tire guages just to get you some money.  if i only had any to share i would.

Good luck.
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Tom
1991 Eagle 15 and proud of it.
8V92T, 740, Fulltime working on the road.

Fran was called to a higher duty 12/16/13. I lost my life navigator.
Busted Knuckle
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« Reply #17 on: April 05, 2010, 06:26:59 PM »

Jim your not alone dad's 05 took a ride on a tow truck this weekend too!

He was just cruisin' along on I-55 SB when it just "shut down" no warning nothing! Had a Detroit Diesel technician come out and check it out and he said "whatever it is I can't find or fix it here so it'll need towed!"

As they were dropping it at Clarke Power Services in Memphis the "tech" & the wrecker driver have decided "that it was most likely an Allison issue!"
Seems the wrecker driver could not get the trans to "release" in-order to roll the driveshaft over to unbolt it! So he had to use lower the jack and use the wrecker to "roll the bus" and when he was telling the tech from Clarke about it. The Clarke tech said "so that explains why I couldn't find any issues with the ECM, it's in the tranny!"

FWIW

(are we having fun yet? Wink)
Grin  BK  Grin
 
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Busted Knuckle aka Bryce Gaston
KY Lakeside Travel's Busted Knuckle Garage
Huntingdon, TN 12 minutes N of I-40 @ exit 108
www.kylakesidetravel.net

Grin Keep SMILING it makes people wonder what yer up to! Grin (at least thats what momma always told me! Grin)
DaveG
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« Reply #18 on: April 05, 2010, 08:16:38 PM »

Jim, with all you have been through, I would suggest staying away from Hookers...it only makes things better for a little while and then it gets even worse!

Lucky to find a loaner ECM
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rv_safetyman
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« Reply #19 on: April 05, 2010, 09:15:16 PM »

BK not sure about the having fun Angry.  I see that you had a good event, so maybe that bodes well for me.

DaveG, Pat gave me the same advice Grin Grin

I was indeed lucky to have a friend that has an old AutoShift for his new Eagle project (Rusty).  He has a new unit for the project and this was a surplus unit.  I will use it for the trouble shooting process and take in on the next trip to ward off the bad luck gremlins Shocked  I will start the process later this week weather permitting.

Jim
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Jim Shepherd
Evergreen, CO
85 Eagle 10/Series 60/Eaton AutoShift 10 speed transmission
Somewhere between a tin tent and a finished product
Bus Project details: http://beltguy.com/Bus_Project/busproject.htm
Blog:  http://rvsafetyman.blogspot.com/
robertglines1
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« Reply #20 on: April 12, 2010, 10:41:21 AM »

Inquiring Minds want to know out come?HuhHuh?
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Bob@Judy  98 XLE prevost with 3 slides --Home done---last one! SW INdiana
rv_safetyman
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« Reply #21 on: April 12, 2010, 11:17:42 AM »

Hi Robert.  Rest assured that I will ALWAYS post the results of my "challenges". 

I have had to divert my resources to some other projects.  I did pick up a third transmission ECM from a friend and will use it in the trouble shooting process.

My next scheduled trip is mid-May, so I can procrastinate a bit.  I don't believe this is a huge problem.  I think it will involve some good old fashioned testing and replacing a few parts as a part of the testing process.  I think that will be a straight forward job (yeah, right).

One of the projects I am working on is the hydraulic system for the cooling fan for the air to air cooler.  That will also let me operate the jacks.  The jacks will let me easily get the rear end off the ground and onto blocks so that I can do some trouble shooting in the shop before I drive it.

The transmission threw the code within 20 feet, so I should be able to do some testing on blocks.

My hope is to get the testing started late this week or early next week.

Jim
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Jim Shepherd
Evergreen, CO
85 Eagle 10/Series 60/Eaton AutoShift 10 speed transmission
Somewhere between a tin tent and a finished product
Bus Project details: http://beltguy.com/Bus_Project/busproject.htm
Blog:  http://rvsafetyman.blogspot.com/
robertglines1
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« Reply #22 on: April 12, 2010, 12:18:37 PM »

 Jim I just bought a 60 serries with the same trans..soooo for future unforseen problems I'm ready for a education...the unit I purchased has been together as a set up from day one..not pushing just curious..hope it is simple. happy bussing Bob
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Bob@Judy  98 XLE prevost with 3 slides --Home done---last one! SW INdiana
rv_safetyman
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« Reply #23 on: April 12, 2010, 01:45:29 PM »

Hi Robert.  I saw that you were getting the same setup.  Hope you got the shift tower and all of the electrical parts from the driver's area.  If not, it can be pretty expensive.

Both of my engines were not set up for the AutoShift.  That is not a huge deal, but you are way ahead of the game to have them designed from the get go to be together. 

If you have not been to the Roadranger website, you must go there.  They have the full blown manuals (several) for free.  You can start here and then poke around:  http://www.roadranger.com/Roadranger/servicesalesliterature/LiteratureCenterResults/index.htm?&pt=OW_GL_RR&target=1162919212424.

You will enjoy the combination.

Did your coach have a clutch?  If not, I can give you some thoughts on how to do that (some information is in my project pages).

Jim
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Jim Shepherd
Evergreen, CO
85 Eagle 10/Series 60/Eaton AutoShift 10 speed transmission
Somewhere between a tin tent and a finished product
Bus Project details: http://beltguy.com/Bus_Project/busproject.htm
Blog:  http://rvsafetyman.blogspot.com/
robertglines1
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« Reply #24 on: April 12, 2010, 05:59:53 PM »

thanks for info will definitely follow thru..coach did not have clutch....will be in touch...Bob
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Bob@Judy  98 XLE prevost with 3 slides --Home done---last one! SW INdiana
rv_safetyman
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Jim Shepherd


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« Reply #25 on: April 12, 2010, 06:24:16 PM »

Robert, the clutch design options are pretty complex.  Best discussed on the phone.

Jim
three zero three 478 35 zero 1
anytime 8 AM to 9 PM mountain time.
« Last Edit: April 12, 2010, 06:26:30 PM by rv_safetyman » Logged

Jim Shepherd
Evergreen, CO
85 Eagle 10/Series 60/Eaton AutoShift 10 speed transmission
Somewhere between a tin tent and a finished product
Bus Project details: http://beltguy.com/Bus_Project/busproject.htm
Blog:  http://rvsafetyman.blogspot.com/
TomC
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« Reply #26 on: April 12, 2010, 10:29:36 PM »

Jim-talked to my service manager today that also was the service manager at a Detroit Diesel/Allison repair store.  On the Auto Shift-make sure you keep all connections clean and when you do replace your XY shifters, make sure you buy a new wiring harness also.  Good Luck, TomC
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Tom & Donna Christman. '77 AMGeneral 10240B; 8V-71TATAIC V730.
Brian Diehl
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« Reply #27 on: April 14, 2010, 06:06:10 AM »

Robert,
I also have an autoshift (GEN 1) in my MCI 96A3.  I have it running behind a Cummins ISM.  My bus was auto and therefore I had to add a clutch to my bus as well.  I would also be willing to chat with you about my experience and what I would do differently on my clutch setup if I had to do it again.  Feel free to call me if you would like to discuss 763 780 5979 or check out my website - the engine conversion page for pictures and thoughts on my project.
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luvrbus
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« Reply #28 on: April 14, 2010, 06:16:13 AM »

Robert, why reinvent the wheel Prevost had the best hydraulic clutch setup on the market use theirs it works

good luck
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rv_safetyman
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Jim Shepherd


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« Reply #29 on: April 14, 2010, 07:36:42 AM »

Clifford (and others), I have been looking at ways to change my clutch system.  The big issue is that there is not much room between the dash and the front of the bus (at least on Eagles) to put a clutch pedal.

Can you (or anyone) provide more details about the Prevost clutch system? 

I tried to adapt a Volvo truck hydraulic system, but was not successful.

Jim
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Jim Shepherd
Evergreen, CO
85 Eagle 10/Series 60/Eaton AutoShift 10 speed transmission
Somewhere between a tin tent and a finished product
Bus Project details: http://beltguy.com/Bus_Project/busproject.htm
Blog:  http://rvsafetyman.blogspot.com/
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