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post #1 of (permalink) Old 09-05-2001, 07:15 PM Thread Starter
 
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Next question, Ring gear off the flywheel?

How do I get it off? I have heard stick it in the freezer overnight, is this the best way? Do I just beat it off with a bfh and a screwdriver or what?

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post #2 of (permalink) Old 09-05-2001, 07:32 PM
 
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Re: Next question, Ring gear off the flywheel?

drill a hole and then use a cold chisel itll come off.

or a grinder, just be careful not to get into teh flywheel



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post #3 of (permalink) Old 09-05-2001, 07:39 PM
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Re: Next question, Ring gear off the flywheel?

Remember this is an interference fit.

Removal:

1. Use a hacksaw at the teeth trough of the ring gear and cut down to the flywheel. The split ring gear will easiy come off.
2. Remove the ring gear.

Re-assembly.

1. Put the flywheel in the freezer overnight (you don't have to have it cold this long...) so it assumes the freezers temp. This shrinks the flywheel.
2. Put the ring gear in the oven and turn it to 550* and let it assume the temp of the oven. The heat will expand the ring gear.

When you're ready, and do this quick...

3. Lay the cold flywheel flat on 2 2X4's,flange down.
4. Quickly remove the ring gear from the oven and drop it over the flywheel.

If you've done the job right, the ring gear is exapnded and the flywheel has contracted. The two pieces should easily fit together. When cool the interference fit will be preserved.

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post #4 of (permalink) Old 09-05-2001, 07:52 PM
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Re: Next question, Ring gear off the flywheel?

why not $36 for rebuilt/faced wheel and new ring gear assembled and ready to install?

post #5 of (permalink) Old 09-06-2001, 12:17 PM Thread Starter
 
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Re: Next question, Ring gear off the flywheel?

where can I get it for that price the cheapest I have seem is almost $200

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post #6 of (permalink) Old 09-06-2001, 03:14 PM
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Re: Next question, Ring gear off the flywheel?

I just used a torch to heat up the ring gear, and it fell off. I put the flywheel bolts in so the face wouldn't get scratched, heated, and it slipped right off. I flipped the flywheel over, and put the ring gear back on with a little tapping. I did mine quick, but if the ring gear was going to be off a few days, I'd freeze the flywheel to shrink it.

post #7 of (permalink) Old 09-06-2001, 03:50 PM
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Re: Next question, Ring gear off the flywheel?

I did the same thing as nlafon. I heated the ring gear with a torch and it fell off will a little tapping from a hammer. The teeth were mostly worn on one side so i flipped it over and set it back on. This was done on my 77' 304 and it worked for two yrs until I sold it.

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post #8 of (permalink) Old 09-06-2001, 04:37 PM
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Re: Next question, Ring gear off the flywheel?

[img]/wwwthreads_images/icons/laugh.gif[/img] Where I come from we LAUGH at them boahs what uses that new-fangled stuff like freezers to put on a new ring gear. All we done; and still do; was to take a piece of 3/4" X 3/4" keystock that we used fer driving and persuadin' stuff and then using a 24oz. VAUGHN ball-peen hammer[there IS no hammer BUT a VAughn] to drive the keystock we done tapped that sucker plumb clean right off. To go back on we set the flywheel narrow side up and warmed up the ring gear a little with the torch [gas hatchet]. We then flipped the ring gear onto the flywheel and gave it a little spin and that sucker siezed right up. NOW BE CAREFUL that you don't get the wrong side toward the starter. Sometimes they's some little ol' notches what helps the bendix drive disengage right quick and proper when that mill starts up.[img]/wwwthreads_images/icons/crazy.gif[/img][img]/wwwthreads_images/icons/tongue.gif[/img]

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post #9 of (permalink) Old 09-06-2001, 07:55 PM
 
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Re: Next question, Ring gear off the flywheel?

Wow, It would have taken me 4 or 5 times breaking it with a BFH to figure out that freezer/oven thing.

maybe we better recommend to use tongs when pulling the gear from the oven? I could see some hillbilly grabbin a peice of 550deg hot steel.


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post #10 of (permalink) Old 09-06-2001, 09:17 PM
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Re: Next question, Ring gear off the flywheel?

I pounded mine off with a BFH and a block 'o' wood. Heated the ring gear in the BBQ and picked it up and dropped it in place with 2 pairs of vice grips. Total time invested 15 minutes, 100% effective.

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