The AMC Forum : Flex Plate ID http://theamcforum.com/forum/ This is an XML content feed of; The AMC Forum : Transmission & Drivetrain : Flex Plate ID Fri, 24 May 2013 12:51:39 +0000 Sat, 25 Aug 2012 12:50:55 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 10.03 360 theamcforum.com/forum/RSS_post_feed.asp?TID=4832 The AMC Forum http://theamcforum.com/forum/http://www.theamcforum.com/forum/skin_images_amc/forumheader.png http://theamcforum.com/forum/ Flex Plate ID : Here is a 343 flex plate along... http://theamcforum.com/forum/flex-plate-id_topic4832_post386904.html#386904 Author: SC397
Subject: 4832
Posted: Aug/25/2012 at 12:50pm

Here is a 343 flex plate along side a 1970 390 flex plate for the M11/M12 Borg Warner Automatics.  The weight on the 390 flex plate is .213" thick x 3.75" long x 1.375" tall.  With the exception of the one torque converter mounting hole, the series of holes were put in there from the factory to balance it to the crank.  All AMC engines were individually balanced.  If you are swapping flex plates, flywheels or, vibration damper, (even on the same displacement engine) the assembly should be re-balanced.

]]> Sat, 25 Aug 2012 12:50:55 +0000 http://theamcforum.com/forum/flex-plate-id_topic4832_post386904.html#386904 Flex Plate ID : The TH400 has 3 converter bolts... http://theamcforum.com/forum/flex-plate-id_topic4832_post324633.html#324633 Author: carnuck
Subject: 4832
Posted: Dec/24/2011 at 10:19pm

The TH400 has 3 converter bolts and the 727/9XX have 4]]> Sat, 24 Dec 2011 22:19:23 +0000 http://theamcforum.com/forum/flex-plate-id_topic4832_post324633.html#324633 Flex Plate ID : You are in luck, it is hellbilly... http://theamcforum.com/forum/flex-plate-id_topic4832_post324507.html#324507 Author: SC397
Subject: 4832
Posted: Dec/24/2011 at 12:05pm

You are in luck, it is hellbilly proof!  No, you can not bolt the flex plate on backwards.  (I just tried it)  There is no position where all of the holes will line up when it is flipped the wrong way. 
The counter weights on the 904 & 727 are on the side that faces the transmission. 
The counter weights on the TH400 and Borg Warners face the engine side.]]> Sat, 24 Dec 2011 12:05:47 +0000 http://theamcforum.com/forum/flex-plate-id_topic4832_post324507.html#324507 Flex Plate ID : Ok I havetwo morequestions...... http://theamcforum.com/forum/flex-plate-id_topic4832_post324498.html#324498 Author: american hellbilly
Subject: 4832
Posted: Dec/24/2011 at 11:26am

Ok I have two more questions... Will the flywheel bolt on backwards, or is there only one way for it to bolt up? I was half awake when I asked the direction and turned my brain around, Does the counterweight go inside or outside? That is what I should have asked in the first place. I'm asking because I can bolt it straight up with no issues with the counterweight facing out.]]> Sat, 24 Dec 2011 11:26:47 +0000 http://theamcforum.com/forum/flex-plate-id_topic4832_post324498.html#324498 Flex Plate ID : Thanks for the info. http://theamcforum.com/forum/flex-plate-id_topic4832_post324250.html#324250 Author: american hellbilly
Subject: 4832
Posted: Dec/23/2011 at 1:53pm

Thanks for the info.

]]> Fri, 23 Dec 2011 13:53:29 +0000 http://theamcforum.com/forum/flex-plate-id_topic4832_post324250.html#324250 Flex Plate ID : The flex plate will only line... http://theamcforum.com/forum/flex-plate-id_topic4832_post324243.html#324243 Author: SC397
Subject: 4832
Posted: Dec/23/2011 at 1:22pm

The flex plate will only line up one way with the holes in the end of the crank.  You have to put it on the crank and keep spinning it around until all the bolt holes line up.  The flex plate goes on the crank shaft first, ring/washer goes on the flex plate, the bolts go through the ring/washer then through the flex plate.]]> Fri, 23 Dec 2011 13:22:42 +0000 http://theamcforum.com/forum/flex-plate-id_topic4832_post324243.html#324243 Flex Plate ID : How doIfigure out which hole is... http://theamcforum.com/forum/flex-plate-id_topic4832_post324234.html#324234 Author: american hellbilly
Subject: 4832
Posted: Dec/23/2011 at 12:28pm

How do I figure out which hole is the offset hole on the crankshaft? Does the ring/washer go between the flywheel and crank or flywheel and trans]]> Fri, 23 Dec 2011 12:28:57 +0000 http://theamcforum.com/forum/flex-plate-id_topic4832_post324234.html#324234 Flex Plate ID : Dish away from the engine http://theamcforum.com/forum/flex-plate-id_topic4832_post323391.html#323391 Author: SC397
Subject: 4832
Posted: Dec/20/2011 at 8:39am

Dish away from the engine]]> Tue, 20 Dec 2011 08:39:31 +0000 http://theamcforum.com/forum/flex-plate-id_topic4832_post323391.html#323391 Flex Plate ID : I am reinstalling my flywheel... http://theamcforum.com/forum/flex-plate-id_topic4832_post323365.html#323365 Author: american hellbilly
Subject: 4832
Posted: Dec/20/2011 at 5:07am

I am reinstalling my flywheel on my 77 360/TF904 and was wondering which direction the flywheel goes. dish in or out?

Edited by american hellbilly - Dec/20/2011 at 5:09am]]> Tue, 20 Dec 2011 05:07:24 +0000 http://theamcforum.com/forum/flex-plate-id_topic4832_post323365.html#323365 Flex Plate ID : SC397 wrote:On the left is... http://theamcforum.com/forum/flex-plate-id_topic4832_post298974.html#298974 Author: carnuck
Subject: 4832
Posted: Sep/13/2011 at 11:22pm

Originally posted by SC397 SC397 wrote:

On the left is a flex plate for a 360 with the TH400.  On the right is a flex plate for a 401 with the TH400.  No weight on the 360 (except for the little round riveted tubes) and a 1' x 2 1/4" weight on the 401flex plate.



Just to go a little further with this. These plates are for '74 to '79 TH400. (the earlier one used with a nailhead trans and adapter ring is different) The "mustache" cut out of the plates IS the balance weight! On the 6 cyl it's cut out all the way. The 401 plate was rebalanced from a 360 plate. The actual factory 401 plate has a very skinny mustache without the "undernose" divot. 304 flexplate has a bigger mustache (smaller weight offset)

304 flexplate to TH400 (almost brand new)



Here's the TH400 to 327 flexplate on the motor



and the adapter ring





]]> Tue, 13 Sep 2011 23:22:23 +0000 http://theamcforum.com/forum/flex-plate-id_topic4832_post298974.html#298974