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Harsh drive engagement? #737819 07/01/10 02:07 AM 07/01/10 02:07 AM
Joined: Aug 2004 Posts: 743 65Valiant OP super street
65Valiant OP super street Joined: Aug 2004 Posts: 743	65 valiant with a 78 904 transmission. Always harsh and clunk noise when putting into drive...tried adjusting the idle and helped a little but the engine almost stalls due to the low idle when at stop lights. Clunks a little bit in reverse too. UJoints are fairly new. Tranmission was rebuilt recently and shifts perfectly, yet still harsh drive engagement. Any ideas? Last edited by 65Valiant; 07/01/10 02:08 AM.

Re: Harsh drive engagement? [Re: 65Valiant] #737820 07/01/10 04:27 AM 07/01/10 04:27 AM
Joined: Aug 2003 Posts: 4,481 Mesa, AZ P Pat_Whalen super gas
Pat_Whalen super gas P Joined: Aug 2003 Posts: 4,481 Mesa, AZ	Quote: 65 valiant with a 78 904 transmission. Always harsh and clunk noise when putting into drive...tried adjusting the idle and helped a little but the engine almost stalls due to the low idle when at stop lights. Clunks a little bit in reverse too. UJoints are fairly new. Tranmission was rebuilt recently and shifts perfectly, yet still harsh drive engagement. Any ideas? What sort of rear axle?

Re: Harsh drive engagement? [Re: Pat_Whalen] #737821 07/01/10 04:58 AM 07/01/10 04:58 AM
Joined: Jan 2003 Posts: 5,791 Hamilton, Ontario Canada Magnum master
Magnum master Joined: Jan 2003 Posts: 5,791 Hamilton, Ontario Canada	What is the idle speed and what torque convertor are you using? 69 Super Bee, 93 Mustang LX, 04 Allure Super

Re: Harsh drive engagement? [Re: 65Valiant] #737822 07/01/10 07:51 AM 07/01/10 07:51 AM
Joined: Jan 2003 Posts: 1,791 Big Sky Country M MO_PA top fuel
MO_PA top fuel M Joined: Jan 2003 Posts: 1,791 Big Sky Country	When these cars were new in 64/5/6/etc. many owners, including myself, returned our cars to the dealer with this complaint...when new, or correctly rebuilt these transmissions have a very positive shift, that trait is part of what makes them last a lifetime. Slow easy shifting wears things out. my2cents Last edited by MO_PA; 07/01/10 07:54 AM.

Re: Harsh drive engagement? [Re: MO_PA] #737823 07/01/10 09:17 AM 07/01/10 09:17 AM
Joined: Aug 2004 Posts: 743 65Valiant OP super street
65Valiant OP super street Joined: Aug 2004 Posts: 743	7 1/4 rear axle, idle set at 950/900, and a stock mopar torque converter, dont know the stall but for a 318/904 from 78 according to my mechanic.

Re: Harsh drive engagement? [Re: 65Valiant] #737824 07/02/10 02:05 PM 07/02/10 02:05 PM
Joined: Jan 2003 Posts: 5,791 Hamilton, Ontario Canada Magnum master
Magnum master Joined: Jan 2003 Posts: 5,791 Hamilton, Ontario Canada	If it's a 12" convertor. They are tight. Tight means harsh engagement. This is not to say there is not a problem with your transmission or it can not be fixed by something in your transmission but I've swapped from 12 to 11 before and the engagement was much softer. 69 Super Bee, 93 Mustang LX, 04 Allure Super

Re: Harsh drive engagement? [Re: 65Valiant] #737825 07/02/10 02:08 PM 07/02/10 02:08 PM
Joined: Apr 2007 Posts: 2,826 NY usa 5 540challenger master
540challenger master 5 Joined: Apr 2007 Posts: 2,826 NY usa	Quote: 7 idle set at 950/900, = Is that idle in gear or idle in park/neutral.

Re: Harsh drive engagement? [Re: 540challenger] #737826 07/04/10 02:52 PM 07/04/10 02:52 PM
Joined: Aug 2004 Posts: 743 65Valiant OP super street
65Valiant OP super street Joined: Aug 2004 Posts: 743	In park the idle is a little higher...maybe 950/1000, and I adjusted the idle so in drive it is at 800. Looks to be the lowest it will go without stalling when at a light. It actually helped a little with the engagement being harsh going from neutral to drive or park to drive. I start the car in neutral now as I heard this helps the transmission fluid flow when starting the car cold.

Re: Harsh drive engagement? [Re: 65Valiant] #737827 07/04/10 04:41 PM 07/04/10 04:41 PM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	Quote: Always harsh and clunk noise when putting into drive. Clunks a little bit in reverse too. Any ideas? ring/pinion (excessive) backlash live every 24 hour block of time like it's your last day on earth

Re: Harsh drive engagement? [Re: 65Valiant] #737828 07/04/10 05:02 PM 07/04/10 05:02 PM
Joined: Jan 2003 Posts: 25,877 Rio Linda, CA John_Kunkel Too Many Posts
John_Kunkel Too Many Posts Joined: Jan 2003 Posts: 25,877 Rio Linda, CA	Quote: In park the idle is a little higher...maybe 950/1000, and I adjusted the idle so in drive it is at 800. That's a lot higher than the normal 550-650, if you have to run it that high to keep from stalling there's a problem with the tuneup. The INTERNET, the MISinformation superhighway

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