RE: 5 Speed Manual Trans a Box of Rocks
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RE: 5 Speed Manual Trans a Box of Rocks - 4/17/2008 11:31:11 AM
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Hummbug
Posts: 3
Joined: 4/16/2008
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I agree with a few of the posters above, it feels to me like the clutch isn't fully engaging but the first time I had it back the dealer assured me that it was.
I took it back to the dealer again and had the service manager drive it and then he had his trans specialist drive it and everyone now agrees that it's not right. I'm scheduled to drop it off on Monday for a few days.
Yeah, I pull it from nuetral into second and then into first but half the time getting it into second is as bad as getting it into first.
As for Steve #1's intructions, thank you, but that's an awful lot of dancing to do when the light turns green and there's a line of cars behind me, especially since no one else with a manual H3 apparently has to dance.
I'll let you guys know what the dealer tells me. Thanks for the insights.
HB
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RE: 5 Speed Manual Trans a Box of Rocks - 4/17/2008 9:09:54 PM
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cbetts
Posts: 156
Joined: 4/7/2007
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After all the Solstice/H3 comments, I had to go Google around. I found this: LINKY
I figured that there would be subtle internal differences.
I would be interested if the 2007 clutch can be retrofitted to the 2006 . . . hmmmmmmm.
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Hummer Geek
http://www.bettssoftware.com
2006 H3/Slate Blue/5-Speed/Adventure/Sun Roof/Lots-O-Stuff
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RE: 5 Speed Manual Trans a Box of Rocks - 4/17/2008 10:29:58 PM
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3hummers
Posts: 11749
Joined: 9/23/2007
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I have never driven a stick H3 but I have heard nothing but positive comments about it.
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2006 H1 Alpha wagon
2000 H1 Slantback
1997 H1 wagon
2008 H3 Alpha
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RE: 5 Speed Manual Trans a Box of Rocks - 4/18/2008 5:46:11 AM
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cbetts
Posts: 156
Joined: 4/7/2007
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Oops, Looks like I linked wrong . . . here is the text from their document:
quote:
2008 Aisin AR-5 (MA5) Car And Truck Transmission
2008 Model Year Summary
Aisin AR-5 (MA5) five-speed manual car and truck transmission
Carryover from 2007 Model Year
o Ratio For 3rd Gear Higher For Pontiac Solstice And Saturn Sky
o 1st And 3rd Gears Strengthened With Shot Peening Process
o Clutch Made Larger For Hummer H3 Application
o 2nd And 3rd Gear Synchronizers Changed To Carbon On H3 Application
FULL DESCRIPTIONS OF CARRYOVER FEATURES
RATIO FOR 3RD GEAR HIGHER FOR PONTIAC SOLSTICE AND SATURN SKY
The ratio for 3rd gear on both roadsters was made “shorter”, or higher, to allow higher engine rpm for better performance in 3rd gear and bring it closer to 2nd gear. This change is not applied to the compact pickup trucks, Chevrolet Colorado and GMC Canyon.
1ST AND 3RD GEARS STRENGTHENED WITH SHOT PEENING PROCESS
The 1st and 3rd gearsets on the Solstice and Sky, and the Hummer H3, are strengthened by a shot peening process during gear manufacturing. The increase in torque from the new high-performance 2.0L I4 turbocharged engine in the Solstice GXP and the Sky Red Line, as well as in the new 3.7L I5 in the H3 required the stronger gears.
CLUTCH MADE LARGER FOR HUMMER H3 APPLICATION
To handle the increased power and torque from the new 3.7L I5 in the Hummer H3, the clutch was increased in diameter from 265mm to 280mm.
2ND AND 3RD GEAR SYNCHRONIZERS CHANGED TO CARBON ON H3 APPLICATION
The friction material on the synchronizers for the 2nd and 3rd gear blocker rings are changed from brass to carbon, which is a more durable and heat-resistant material. This allows the transmission to handle the increased torque of the new 3.7L I5 in the H3.
LOW MAINTENANCE
The Aisin AR-5 uses Esso 75W90 for lubrication. There is no maintenance required under normal operating conditions, although fluid changes are recommended for severe duty. A GM part number service oil is available from GM dealers.
OVERVIEW
To achieve car-like standards in running noise and shift quality, the proven Aisin AR-5 was selected for the Chevrolet Colorado and GMC Canyon (GMT355) compact pickup truck line. This transmission will handle the torque output of the base and uplevel engines, which will reduce assembly and service complexity.
The design and performance targets were supplied to Aisin by GM Powertrain to make the AR-5 a state-of-the-art manual light-duty transmission. The AR-5 is currently used by Isuzu and Toyota, although the gearsets and ratios for the GM application are unique.
The Aisin AR-5 was selected as a starting point because of its characteristic low-noise levels during operation and the light shift feel and smooth gear engagement properties. The Aisin unit is used in competitive sport-utility applications, meeting car-like noise standards.
The Aisin 5-speed transmission is a conventional two-axis manual gearbox, with a through shaft and a counter shaft, spaced 82mm apart on-center. It is cast in aluminum, and weighs 107 pounds. The gear selector pattern is conventional for a five speed manual transmission, with the reverse gate on the far right side and rearward. The shift lever connects directly to the top of the transmission.
Triple-cone synchronizers are used on 1st, 2nd and 3rd gears. These synchronizers have three friction surfaces, which increase their ability to transfer the flow of torque more smoothly from one gear to another. Synchronizers act as clutches to speed up or slow down the gearsets that are being shifted to, and greater friction area results in easier shifting for the driver. All of the friction surfaces on the synchronizer rings are brass. The ratios in the 5-speed are widely spaced in the pickup truck applications for versatile performance and efficiency, and ar
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Hummer Geek
http://www.bettssoftware.com
2006 H3/Slate Blue/5-Speed/Adventure/Sun Roof/Lots-O-Stuff
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