M12 hits hard from park to reverse
Printed From: TheAMCForum.com
Category: The Garage
Forum Name: Transmission & Drivetrain
Forum Description: If it's between the engine and wheels, it goes here
URL: https://theamcforum.com/forum/forum_posts.asp?TID=89897
Printed Date: Apr/23/2024 at 11:50pm
Software Version: Web Wiz Forums 12.03 - http://www.webwizforums.com
Topic: M12 hits hard from park to reverse
Posted By: jesse
Subject: M12 hits hard from park to reverse
Date Posted: Sep/21/2017 at 2:16pm
| 1968 AMX 390 with M12 Borg Warner. Transmission shifts well in drive when driving down the road but from park to reverse it tends to hit hard once it engages. From park to drive it shifts good without hitting hard. |
Replies:
Posted By: FSJunkie
Date Posted: Sep/21/2017 at 11:12pm
|
They tend to have low stall torque converters. In other words, they transfer a lot of engine torque at low RPM. An engine idling just a few RPM too high can make for a lot of torque when the transmission engages into a driving range. What is your idle speed? One tends to get a big clunk from these transmissions if their engine idles over about 700 in park. ------------- 1955 Packard 1966 Marlin 1972 Wagoneer 1973 Ambassador 1977 Hornet 1982 Concord D/L 1984 Eagle Limited |
Posted By: DaemonForce
Date Posted: Sep/22/2017 at 6:33am
------------- 1971 Javelin SST American 304 2v | FMX | AM20-3.31 1983 American Limited Jeep 4(.7)L S-MPFI | 1982 NWC T-5M (4.03/.76) | Dana30IFS/35-2.72 |
FSJunkie wrote:Posted By: jesse
Date Posted: Sep/23/2017 at 1:49am
| Yes i would say about 900 rpm or more. |