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Discussion Starter #1
alrightly boys its cost me alot of money and even more down time this past year but i now have some confidence in my new transmission and engine ! as some of you know last april my problems started when i blew 2 drive belts within 3 miles , after that the transmade alot of noise . i sent it to my local dealer and they assured me that they compared the noise to a brand new machine and it was the same even though i asked to have the trans removed and inspected at my expense if nothing was found ..... they put on a new belt and charged me for it ! so less than 150ish miles later the noise finally showed itself in the form of a gernaded trans and junked motor . luckily it was replaced with a new short block from AC which included new style cases , higher oil pressure . but we were unsure at the time if AC had changed anything in the trans . according to the parts schematic they were still using the same crap thrust washers in the origainal trans .

Well due to some very unfortunate turns of events my motor had to be pulled yet again after 46miles on the new short block , ( ie.install and assembly error, is all ill say) :mad: i sent the whole motor trans and clutches to D&P PERFORMANCE and had the m tear it down to bare block and check it over , repair and replace anything that even smelled funny .

when D&P open up my trans at first thought it was missing pieces . but after 3 days of phone calls the AC they got a answer ! guess what AC knows they had a problem with their transmissions and redesigned the entire thing ! :eek: no more crappy thrust washers, larger shafts and gears, improved oiling . quote from my builder " very nice piece" .

unfortunatly at this time there is no parts schematic available for anyone to veiw , even the dealers , we have a part # 0801-182 and the earliest build date code for the part # is on my motor that i have found . im sure there is others but i havnt heard from them . that date is 8-19-10 . from what we have found out this transmission is what comes in the all 2011 XTZs . AC has yet to update dealers on the change in parts or when exactly they started using this trans . but expect to release all info parts releated with in the up coming months .

right now the only way that we know to get the new trans is in the new short block and assuming in a new complete motor assembly . if you look up and transmission for a 2011 on parts program it will show you the new stlye cases and the second gen of the trans which has the new counter shaft assmembly but still uses the washers .
and if you look up the shrot block 0801-182 it will say that it replaces #0801-186 which is the old stuff . and it will refer you to the old schematic for the 0801-186 .

i asked D&P if there is anyway to tell the difference visibly from either engine and they said nope . you have to open it up and inspect the transmission .

so just a recap of what we know then :D


if you have had a short block replaced with part #0801-182 you have the new style cases ,higher oil pressure and the new design transmission

if you have a 0801-186 you have the new cases , higher oil pressure and
the old original trans mission with the updated counter shaft .

i wish i had a parts schematic to go with this info and an exact date when AC started using this trans in production machines but not even the dealers know ......and hopefully soon we can get some more .

talking with D&P , we are assuming that with the redesign in the cases and oil pressure that it came before the new trans and that anybody with a trans failure can order up a trans assembly and it will be the newest design , but we cant be sure yet .

i do know that if you had a failure on a 09 early 10 xtz you had to buy and update the counter shaft assmbly to the 2nd gen trans that still used the washers , but that was also for the gen 1 case .


i hope this helps any of you guys out there and if anybody has any more info on this wed love to hear from you . i know between finding out about this and having one of , if not the best shop in the country go though my motor i am gaining confidence back in my machine and AC :D
 

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Discussion Starter #3
i just set the motor in tonight . im gonna wrap the headers and install a oil pressure and temp gauge before i finish it up this week . leaves me 10 days to have her running before our aravipa canyon trip . 200+ miles in 2 days ...... wish me luck .
 

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I believe you can tell the H2 Gen1 vs the Gen2 by the speed sensor configuration, I am trying to find the pic.
 

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Discussion Starter #6
I believe you can tell the H2 Gen1 vs the Gen2 by the speed sensor configuration, I am trying to find the pic.


the speed sensor , pcv breather ports and a few other subtle differences will tell which generation case you have but not which transmission that i know of ......but if someone knows for sure please speak up
 

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the speed sensor , pcv breather ports and a few other subtle differences will tell which generation case you have but not which transmission that i know of ......but if someone knows for sure please speak up

Matt is correct on this. I have been through the same thing Matt is going through. The date stamped on the rear of your engine case might be the only way to tell as far as we know right now. I am sure that darryl or Dean will know more about this in the future.
 

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Matt is correct on this. I have been through the same thing Matt is going through. The date stamed on the rear of your engine case might be the only way to tell as far as we know right now. I am sure that darryl or Dean will know more about this in the future.
Correct, I called AC to try and find out which engine and transmission internals he had. Still waiting on the second call back, but it sounds like they got back with Dean first.
The speed sensor and such will tell whether it is gen 1 or 2 engine, but not which transmission it has. The cases for the old style gear cluster and new style are identical. The first gen 2 engines had the old style gear cluster in them. The one Matt has looked to have the new style gears from the stamped date, but someone early on at AC had told him that he had the old style gears. Looks like he has the new ones though.

Makes me wonder if the new style cluster will fit in the old style case, that way those of us that have old cases might be able to install the new style cluster. Buying the shortblock is out of the question for many, it retails for over $2200 and isn't fully available yet to all, just those that are having problems (warranty ones first).
 

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Well after another 2 weeks at the dealer I have not heard back, so far 3 months of my warranty have ticked by with the machine at the dealer and less than 500 miles on it, I will try and contact AC and request a new 0801-182 setup and state there obviously something wrong with the design as this is the 3rd time the motor has been designed..am I wrong on this persuit.

Tim
 

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He'll no your not wrong. The least they can do is put the latest and greatest motor in you XTZ. The 3 months you have lost with your cat at the dealer is valuable time that you would have spent with your friends and family riding. Not to mention the insurance cost and If you have a monthly payment on it. Time costs you money and memories. Stay in the fight !
 

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Spent an hour on the phone last night with Ac and they told me that they will not extend my warranty 3 months but it is noted on the VIN that the trans is making snapping whinning noises so when it breaks it was noted during the covered period. They will call the dealer this am and supposedly there is some clutch thing (clutch basket and cartridge) 25 and 27 in picture in the rear case that is the weak link and once it slips it is junk. I personally think it is the spline or secondary cross shaft that is junk, due to the snapping and the loss of drive when only in 4wd and the whinning is really loud at 20 mph so it is a gear shim issue. I don't claim to know everything but being a gearhead all my life and build/ race 800HP /1600TQ Diesel Pulling trucks I spend a lot of time making sure things are on the money.
 

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I can see that gear issue you were talking about last night in the last pic...I wonder if I can drop that bottom case in the car if I can't see the gears with the broscope?
 

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You can see some of the gears through the oil fill cover. The one with three bolts and the yellow dip stick. I had mine off the other day and could see up in my junk. The other thing that you might see with that cover off are pieces of washers and piston if you are as lucky as matt and I were!
 

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I called the dealer last Friday to see if my ride was done and they said that it is back on the trailer but could not tell me if it was ready or not and they will call me back later in the day. So I get a call back and they said nobody knows anything about it and the owner is on a cruise for the week and will be back next week.....so now 3 weeks later since I talked to AC and they were going to look into the case and keep me posted on what is happening with my ride still no contact or returned calls from either of them.
 
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