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Steve Watr
08-29-2005 20:24:32
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Re: Re: Re: Re: Re: Re: Multuhoe model MDA, Pettib in reply to John Kassay, 08-29-2005 14:29:35
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Glad to hear from you. My current status is not good. After over $1000 parts and labor on the Allison tranny, we finally put her back in a couple weeks ago.I removed the tranny filter housing to inspect it for a defect of any type, and to verify what hose is input, and output. Cleaned off the ton of sludge and the in/out was clearly marked. Called Pettibone, and they refered me to Tiffen parts, the guy at Tiffen was able to tell me wich lines were output/return for the tranny cooler, and the filter housing. I had this confirmed by a nice guy at Twin Disc (the guys who now sell parts for that era Allison). Note that I had the deisel running nicely before I installed the tranny, seemed to idle well. After I installed the tranny, topped off with fluid, I did not hook up the drive shaft right away. Fired up the engine, and the output drum (that houses the parking brake) rotated slowly, I figire this was normal in neutral with no load on it. I could brake it with my hands. Then I moved the actuator on the valve body in one click, and yippee! she was spinning, reved her up and she spun faster, moved lever to high forward, she spun faster, tried reverse, seemed fine. Quit that day because it was getting late. Several days later I returned and bolted up the drive shaft. Now at this point I still had the hydraulic pump off, and a temporary fuel tank setup for testing, so the front bucket,backhoe, and stabilizers are all down, and not able to be raised yet, But I figured this thing should still be able to move in low, I mean, it should have power enough to drive the front loader into a pile of dirt, right?? Damn thing won"t budge, whats worse, after revving it up trying to get it to move, the torque converter must start loadin up too much, and the drag on the engine becomes great enough to stall the motor. This seems to be exactly the same symptom I had a couple years ago before I ever took the tranny out! Only difference is that the crankcase is not flooding with fluid, but this may have been from the power steering pump that I still have not reinstalled. I figure one of three possibilities, or a combo of them. 1.) The tranny is slipping badly, even though the clutch packs looked good when we had the tranny apart 2)the machine is not designed to have the power to move at all with all the stuff down(backhoe,loader,stabilizers) 3)somthing is locked up after the tranny, like the differential,planetary, or brake drums. I have decided to go ahead and get the main hydraulic pump shaft I need to complete the rebuild of the main pump, and get the hydraulics up and running, lift all the stuff up, and see if it will move. I figure then I can even use the stabilizers to raise the rear wheels clear off the ground to see if the rear end is locked up. As for your whoas, try Tiffen parts, that is where I just got an OEM tranny filter for this pig for $9 plus shipping, FYI, it is jsut a detroit desiel filter that crosses to a NAPA gold 1133. Anyways, they still have some OEM stuff for the Multihoe"s. The NAPA website says a 2115P crosses to a NAPA gold 1567, check it out at NAPAonline.com, you can compare the measurements there. A $400 filter must be the type that has a special material that locks water in the filter, thus removing water frokm the hydraulics as it filters, that seems like a lot of coin for a filter for this old pig. Call Tiffen, any numbers on the original filter??? As for your no high range problem, I would have to believe its a problem in the valve body, wich would be good news because you can remove that without pulling the tranny. I would assume that its the valve body only if you see not even the slightest attempt to move from low to high, in other words, you drive along a low, then upshift to high, and it aclt like you went back to neutral. ALso check the linkage, mine is sloppy as heck, and yours might be so worn, that when you move the lever to high, the actuator on the valve body may be only moving to the area between speeds. The actuator has ball bearings that are spring loaded that rise on it in the valve body. They fall into detents on the acuator. THis indexes the the actuator. Discconnect the linkage, and see if you can get it to snap in/out into the five positions, the nhook the likage up again and see if moving the gear lever moves it in /out the same amount.
Just checked the Donaldson filter site, they say that Pettibone number crosses to a Donaldson P550138, The NAPA site crosses that to a NAPA gold 1567, hmmmmm. The Wix site crosses it to a 51567, the primary use is described as "Various HD Equipment w/ Greeson Hyds (33 Micron)". The wix site crosses the Pettibone number (2115P) to a 51567! That bodes well that you can use a NAPA gold 1567 for that housing, and NApa sells that filter for around $11! Go to the Wix site to see the specs well>Link
Then>Link click on the 51567, and a window will open with the filter specs.
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