Starter Ring Gear on Flywheel

Old 03-17-2008, 09:23 PM
  #1  
rlgodbold
Junior Member
SHOW GUEST
Thread Starter
 
Join Date: Jul 2007
Posts: 5
Default Starter Ring Gear on Flywheel

I've got a flywheel with some teeth eaten up on the ring gear. It is a lightened flywheel, weighs 8 lbs for an 8.5 inch disk on a Ford 2.3 L motor. The main part of the flywheel (whats that called by the way) is aluminum but the ring gear is steel. I've heard before that you can heat the flywheel up to get the ring gear off but aluminum heats up so much before steel that I'm not sure if that will work. Anybody have any suggestions or should I just get a new flywheel? I'd prefer to keep this one as the lightened ones are $300 on up.
rlgodbold is offline  
Old 03-18-2008, 03:21 AM
  #2  
johnracer
Senior Member
DYNO OPERATOR
 
Join Date: Aug 2005
Location: Rifle Colorado
Posts: 585
Default

On a conventional flywheel, you can knock the ring gear off with a punch and hammer, no heat. Place the flywheel on a flat surface, lay the new ring on top and heat the ring with a torch until it slips on. You may have to give it a few taps with a hammer to fully seat it. I'd think an aluminum flywheel would be the same, but it'll probably take longer to heat the ring as the aluminum will suck the heat out pretty quick. It might be best to contact the manufacturer to be sure...
johnracer is offline  
Old 03-18-2008, 09:47 AM
  #3  
zipper06
Senior Member
RACING JUNKIE
 
Join Date: Jan 2006
Location: La.
Posts: 2,890
Default

Put the assembly in a freezer for a few hrs. the alum will shrink more than the steel, then knock off the ring gear with a brass punch. For installation, refreeze the flywheel, and put the ring gear in an oven at 500 degrees, then quickly tap the ring gear on the flywheel. You'd be surprised the ring gear will almost fall on the flywheel.

JMO

Zip.
zipper06 is offline  
Old 03-18-2008, 09:54 AM
  #4  
bjuice
Administrator
RACING JUNKIE
 
bjuice's Avatar
 
Join Date: Apr 2003
Location: Greenville s.c.
Posts: 3,239
Default

Originally Posted by zipper06
Put the assembly in a freezer for a few hrs. the alum will shrink more than the steel, then knock off the ring gear with a brass punch. For installation, refreeze the flywheel, and put the ring gear in an oven at 500 degrees, then quickly tap the ring gear on the flywheel. You'd be surprised the ring gear will almost fall on the flywheel.

JMO

Zip.

SHAKE-N-BAKE .....

Yours Truly,
Ricky Bobby
bjuice is offline  
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service