TheAMCForum.com Homepage
Forum Home Forum Home > The Garage > Transmission & Drivetrain
  New Posts New Posts RSS Feed - AMC Flywheel ID
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Click for TheAMCForum Rules / Click for PDF version of Forum Rules
Your donations help keep this valuable resource free and growing. Thank you.

AMC Flywheel ID

 Post Reply Post Reply Page  <123>
Author
Message
smills61074 View Drop Down
AMC Nut
AMC Nut
Avatar

Joined: Feb/05/2011
Location: savanna, il
Status: Offline
Points: 270
Post Options Post Options   Thanks (0) Thanks(0)   Quote smills61074 Quote  Post ReplyReply Direct Link To This Post Posted: Apr/28/2017 at 10:45am
It has a full height counter weight.
68 Blue AMX Perfect California Body going for 401/6 speed
1 1/4 ton Power Wagon Ex Colorado Brush Truck
2006 Caddy CTS V with LS2 and manual trans Corsa Exhaust Beater car (daily driver)
Back to Top
Have2SC's View Drop Down
AMC Addicted
AMC Addicted
Avatar

Joined: Nov/30/2011
Location: Norwalk, OH
Status: Offline
Points: 1253
Post Options Post Options   Thanks (0) Thanks(0)   Quote Have2SC's Quote  Post ReplyReply Direct Link To This Post Posted: Apr/28/2017 at 11:20am
  according to the list of casting numbers i have its for a 70-71 360. i have one just like it. Lee
1971 SC360 Hornet 4 speed   1970 Javelin 390 4 speed "Base Model" 1967 Rambler 220 X code 343 4 speed
Back to Top
smills61074 View Drop Down
AMC Nut
AMC Nut
Avatar

Joined: Feb/05/2011
Location: savanna, il
Status: Offline
Points: 270
Post Options Post Options   Thanks (0) Thanks(0)   Quote smills61074 Quote  Post ReplyReply Direct Link To This Post Posted: May/06/2017 at 8:55pm
Those casting number are for a 70 360 or 390.  If the odd hole is put at 12 o clock, I believe it is a 70 390.  Can anyone chime in and verify?  
68 Blue AMX Perfect California Body going for 401/6 speed
1 1/4 ton Power Wagon Ex Colorado Brush Truck
2006 Caddy CTS V with LS2 and manual trans Corsa Exhaust Beater car (daily driver)
Back to Top
asifnyc View Drop Down
AMC Nut
AMC Nut


Joined: Apr/30/2008
Location: SF Bay Area
Status: Offline
Points: 390
Post Options Post Options   Thanks (0) Thanks(0)   Quote asifnyc Quote  Post ReplyReply Direct Link To This Post Posted: Dec/18/2018 at 3:58pm
I just wanted to chime in here as I was trying to ID a few flywheels this morning...

I have TWO 3197219 flywheels (no "-c").  Most of the other posts talk about setting the casting number to the 12 o'clock position and then seeing where the weight is.  When I do this I get the weight at different positions (2:30, 7:30).

But if I do as amc67rogue says -"All clocking should be from the 1 off set hole. All of the offset holes ARE in line with the key way on the front of the crank." THEN the counter weights are in the exact same position. approx. 1 o'clock.  both have the 4.625 ish flange bore and the counter weight is not full height.  based on all this I'm pretty sure these are both '72 up 360 flywheels.

the main thing I want to clarify here is if acm67rogue is right, that the clcocking should be based off the offset bolt hole and NOT based on the part number (and I believe that he is), then there is a lot of confusing info out there about clocking from the part number and stating that 3197219 part number is actually 3 or more different flywheels. it'd be nice to clear this up as I see it's been copy/pasted everywhere... 

so, is 3197219 actually multiple different flywheels or are there only 3197219 and 3197219-c and all 3197219s are actually the same?

would love to hear from someone who feels they have definitive info here.  thanks!


asifnyc.com
'74 Jav/'74 Mat Race
'73 Jav/'75 Grm street
'75 Grm, '62 Amer, '70/'71 Jav - projects
Back to Top
mmaher94087 View Drop Down
AMC Addicted
AMC Addicted
Avatar

Joined: Apr/01/2008
Location: Arizona
Status: Offline
Points: 1676
Post Options Post Options   Thanks (0) Thanks(0)   Quote mmaher94087 Quote  Post ReplyReply Direct Link To This Post Posted: Dec/18/2018 at 6:37pm
It is my understanding that the 3197219 was only a casting number for the raw blank that was later used for the flywheel.  If the raw casting number matched the part number used in the AMC Parts Book; it was a coincidence at best.  At the time the castings were put into production; the assigned part number that was used on the casting may or may not correspond to the part number assigned to the part in the Parts Book.
Mike
Back to Top
Trader View Drop Down
AMC Addicted
AMC Addicted


Joined: May/15/2018
Location: Ontario
Status: Offline
Points: 6762
Post Options Post Options   Thanks (0) Thanks(0)   Quote Trader Quote  Post ReplyReply Direct Link To This Post Posted: Dec/18/2018 at 8:13pm
Just from the balance perspective, the 3197219-C that I put on a stock (crank, rods, pistons) 74 401 had to be significantly weight reduced approximately 90 degrees to the counter weight.
So guessing it was from a 360 originally.
The stock front balancer was untouched and the crankshaft had just a few ounces removed. 
Back to Top
Steve_P View Drop Down
AMC Addicted
AMC Addicted
Avatar
Charter Member

Joined: Jun/28/2007
Status: Offline
Points: 3760
Post Options Post Options   Thanks (0) Thanks(0)   Quote Steve_P Quote  Post ReplyReply Direct Link To This Post Posted: Dec/19/2018 at 9:38am
I, and others, have posted this many times but this legend won't die.

The location of the casting number as far as application determination is IRRELEVANT. Think about it, it is just something that changed over time and has NO meaning as to application. Do you think workers on a moving assembly line were looking for casting number locations to determine application?

The 68-9 343 and 390 used the same head casting. If a cylinder head on a May 68 343 has the casting number in one location and the head off a Feb 69 390 has the same casting number, but in a different location, does that mean anything?

Yes, it means the casting location moved over time. That is all.

As said, the balance pad location to the offset hole is what matters. The 70 360 and 390 used the SAME flywheel, it's in the parts book; the casting number location is irrelevant.

Edited by Steve_P - Dec/19/2018 at 9:41am
Back to Top
Trader View Drop Down
AMC Addicted
AMC Addicted


Joined: May/15/2018
Location: Ontario
Status: Offline
Points: 6762
Post Options Post Options   Thanks (0) Thanks(0)   Quote Trader Quote  Post ReplyReply Direct Link To This Post Posted: Dec/19/2018 at 3:42pm
I am not saying the legend should not die. What I'm trying to say that 3197219 flywheel could have been put on a 360 or 401 and the casting number is irrelevant. But the balance of these different engines is not the same. So you cannot assume that this casting was for a 360 or 401.
So if the flywheel is not identified when taken off an engine, then the rotating assembly must be re-balanced.
Back to Top
SC397 View Drop Down
AMC Addicted
AMC Addicted
Avatar

Joined: Apr/30/2009
Location: Michigan
Status: Offline
Points: 5428
Post Options Post Options   Thanks (0) Thanks(0)   Quote SC397 Quote  Post ReplyReply Direct Link To This Post Posted: Dec/19/2018 at 3:56pm
The 3197219 part number is stamped in nearly every configuration of flywheel so, going by part numbers is confusing.  You have to measure that one to know for sure. 
304 & 360 Flywheels: Generally speaking... the counter wight is 1/2 as deep as what is found on a 390-401 flywheel
Back to Top
White70JavelinSST View Drop Down
Supporter of TheAMCForum
Supporter of TheAMCForum
Avatar

Joined: Aug/08/2012
Location: Minnesota
Status: Offline
Points: 4867
Post Options Post Options   Thanks (0) Thanks(0)   Quote White70JavelinSST Quote  Post ReplyReply Direct Link To This Post Posted: Dec/19/2018 at 4:52pm
AMC did things to make it work and keep production flowing. And when AMC started putting 6 cylinder flywheels on 79 304s, and someone asks for that flywheel and you say, yeah I got one, you get beat up by forum members claiming it isn't a 304 flywheel. I used to own a 79 AMX with a 304 4 speed. Factory trans, factory bell ,factory flywheel. I parted it out, it was a rust pile.  The flywheel looks like a 6 cylinder flywheel but is balanced to the 304. So don't bomblast people over it anymore.
Whew glad I got that off my chest, hopefully it will rest now.....
70 Javelin SST, second owner, purchased 1972
Back to Top
 Post Reply Post Reply Page  <123>
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.03
Copyright ©2001-2019 Web Wiz Ltd.

This page was generated in 0.094 seconds.
All content of this site Copyright © 2018 TheAMCForum unless otherwise noted, all rights reserved.
PROBLEMS LOGGING IN or REGISTERING:
If you have problems logging in or registering, then please contact a Moderator or