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Forum Index » New Mopar Torque Converter
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GreenDieselEngineering
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Joined: 10/07/2009 07:25:47
Messages: 357
Location: Southeast Michigan
Slightly different, we were discussing the added capacity, however the higher driveline vibration you noticed is related. The new converter has a higher capacity lock-up clutch, achieved using stiffer springs. The added stiffness means there is less relative motion in the clutch pack and thus more energy imparted through the driveline in terms of added vibration. If you are noticing higher vibration when the transmission is not locked-up, then there may be an issue. We would never want you to fall asleep at the wheel anyway!
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bigmaho1

Joined: 16/08/2009 09:43:45
Messages: 20
Location: Mt Kisco, NY
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GreenDieselEngineering wrote:Slightly different, we were discussing the added capacity, however the higher driveline vibration you noticed is related. The new converter has a higher capacity lock-up clutch, achieved using stiffer springs. The added stiffness means there is less relative motion in the clutch pack and thus more energy imparted through the driveline in terms of added vibration. If you are noticing higher vibration when the transmission is not locked-up, then there may be an issue. We would never want you to fall asleep at the wheel anyway!


Quick Update. The vibration was a little too intense (even for a Jeep) so I brought it to the dealer. They found and replaced a U Joint in the rear drive shaft. Didn't charge that much (it is Christmas after all!) and she's much nicer to drive now. Don't know if my other mechanic damaged it when he replaced the TC or if it was on the way out and failed after the converter was replaced. Anyway, all is good again.

2006 CRD w/ Eco Tune, TC tune, new modified fuel filter/water separator and new Mopar TC
2006 CRD Ltd Eco-tune.
Jeep Patriot (to keep the kids away from my diesel
GreenDieselEngineering
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Joined: 10/07/2009 07:25:47
Messages: 357
Location: Southeast Michigan
The u-joint will definitely cause driveline issues that can be very severe. We changed one of these on our 2006 after some aggressive off-roading! It was almost undriveable above 40 mph and a small miracle it did not blow apart. Glad you are back up and running without issues!
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bigmaho1

Joined: 16/08/2009 09:43:45
Messages: 20
Location: Mt Kisco, NY
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Just drove from New York to Albuquerque, NM with my new TC towing approx 3500 lbs. Not one shudder! And had to floor it a few times. Very happy. Fuel mileage was between 16-18 with a heavy load (in the Jeep and towed behind). Average speed was around 68 mph.

2006 CRD w/ Eco Tune, TC tune, new modified fuel filter/water separator and new Mopar TC
2006 CRD Ltd Eco-tune.
Jeep Patriot (to keep the kids away from my diesel
TDIwyse

Joined: 01/10/2009 06:58:20
Messages: 54
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Add me to the list of people whose shudder problem was solved with new style converter.

2006 Liberty Limited CRD
2004 Ram Quad Cab 4x4 Cummins
2001 VW Jetta TDI
1990 YJ with 2006 Cummins B3.3T
TDIwyse

Joined: 01/10/2009 06:58:20
Messages: 54
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I posted this over on lost as well . . .


http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=49227

---------------------------

Got some lab data back on the stator material.

http://www.flickr.com/photos/10201173@N06/4387763592/

This is a TGA plot. It shows the weight % of the sample, as well as the derivative, of material decomposition across temp. There is essentially no change up to 100 C (212 F). This is likely due to the material alreading being exposed to temps up to this point and the volatile components where already out-gassed. Rapid decomposition didn't start occuring until above 288 C (550 F).

There's also a DSC plot over multiple runs up to 250 C (482 F) that I can upload if there's interest.

All in all it seems like the material composition of the stator should be suitable for use in an automotive application as I don't think there's many situations where it would exceed 500 F.

2006 Liberty Limited CRD
2004 Ram Quad Cab 4x4 Cummins
2001 VW Jetta TDI
1990 YJ with 2006 Cummins B3.3T
bigmaho1

Joined: 16/08/2009 09:43:45
Messages: 20
Location: Mt Kisco, NY
Offline
Holy Moly, When I bought my first Mopar TC last year it was around $198. Since then I purchased another CDR for my wife (never go out of town for a couple of months and leave your wife the keys to the CRD. You will be in the same position as me when you return). Anyway, next step is to upgrade her TC. Just checked Mopar. Part # 68037142AA is now $318. Guess they know a good thing when they see one. Anyone have the part number of the Suncoast. Might check that one out.

2006 CRD w/ Eco Tune, TC tune, new modified fuel filter/water separator and new Mopar TC
2006 CRD Ltd Eco-tune.
Jeep Patriot (to keep the kids away from my diesel
flman
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Joined: 28/08/2009 19:59:32
Messages: 74
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Moho, Actually your are helping in bailing them out of the doo doo. Now you wont feel so bad when you lay out the extra $100 bucks

Still Burnin Oil since 1992!
2010 John Deere 2305 3 cylinder Yanmar
GDE HOT!! Tuned 2006 CRD LTD Silver, Euro TC, GDE Tuned TCM, B&M Trans drain kit
GDE ECO Tuned 2006 CRD Sport Black, B&M Trans drain kit, Front and rear hooks, Full Skids
GDE ECO Tuned 2005 MB 2500 Sprinter Van
2010 MB 2500 Sprinter Van
 
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