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Trouble getting flywheel ring gear on.

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BL manual says heat ring gear to 200* and it will drop on. Froze the flywheel in the frindge and tried it w/ no luck. Tried to tap w/ a hammer but didn't help.

Went to 225,250,300,350,400,450, and finally 500* and still can't get it on.

Anyone have any tricks? I don't have a torch here, just heating in the oven.
 
Oven should be enuff, Billy. Torch is NOT uniform and waay too hot. Did you leave the flywheel in the freezer overnight? 350*F for half an hour should be enuff, but you only have a few minutes to do "the deed" and it takes some hammerin' with a brass or wood drift quickly around the ring to get it well on and seated.
 
Hmmm.

Decades of using a rosebud tip on the torch and the ring gear grasped with an old pair if vise-grips........and that doesn't work, eh?


Odd.

Doesn't really matter if it's uniform or not.
Get at least half of it red, it will fit, and become "uniform" shortly after installation!
 
OH, STOP IT, Dave!!! You darn well know what I mean! :jester:
 
Big pink *RASPBERRIES* in your general direction.

:laugh:
 
DrEntropy said:
Oven should be enuff, Billy. Torch is NOT uniform and waay too hot. Did you leave the flywheel in the freezer overnight? 350*F for half an hour should be enuff, but you only have a few minutes to do "the deed" and it takes some hammerin' with a brass or wood drift quickly around the ring to get it well on and seated.
Click to expand...

30 min at 500* too and it didn't go. Didn't freeze overnight, but coolin it now for tommorrow. Dad always used the torch, but I'm not a fan of it. I hated going to 500, but I didn't see a choice. Local blacksmith guy says "blue steel" is spring steel strenth, which is the color it is now after a 500* bake.

I'm putting it on straight out of the oven on the counter (Kelly isn't here). Moved outside the back door just a few feet away so it's not getting allot of time to cool off. Using the 10# dead blow, or is it 5#?

Back hurts and I'm over mediacated for it rihgt now. Tommorrow is another day.
 
I have to know, why did you take it off?
 
Stripped and diminished, most likely.
 
Gesh, any old machine shop will do it for cheep.
 
TOC said:
Hmmm.

Decades of using a rosebud tip on the torch and the ring gear grasped with an old pair if vise-grips........and that doesn't work, eh?
Click to expand...

Do it the same way here, the oven way is about half miss method, but our original poster already fiquired that out :smile:
 
regularman said:
We always built a fire and waited for the coals to burn down and put it in that until red and then put it on.
Click to expand...

Well now if there is meat on that fire and few cold beverages involved, Kim I like your method better :smile:
 
Last time I did one on my ford 6 cyl I went over both surfaces with emery paper to make sure there was no junk or burs, then put the ring gear on the bbq for about 20 minutes and it fell on, no issues - not sure if the fit is different on a midget or not.
 
Hap Waldrop said:
regularman said:
We always built a fire and waited for the coals to burn down and put it in that until red and then put it on.
Click to expand...

Well now if there is meat on that fire and few cold beverages involved, Kim I like your method better :smile:
Click to expand...


Hap, I was thinkin' th' same thing.
 
Hap Waldrop said:
regularman said:
We always built a fire and waited for the coals to burn down and put it in that until red and then put it on.
Click to expand...

Well now if there is meat on that fire and few cold beverages involved, Kim I like your method better :smile:
Click to expand...
Its the way my grandpaw did it and it worked. I figured he learned to do it that way putting metal tires on a bunch of old wagons and junk that he had out on his place. Kind of a blacksmithy type thing. I seen him do one of them, man the pressure that cooling steel tire put on that wood was awesome, it would crack and pop.
 
Built fire,cooked gear, froze wheel. Gear dropped on w/ no problem and plenty of room to spare. I don't like getting it that hot, but I don't see where a I had an option. Did a quick FINE water mist on the teeth to hopefully get some surface hardness back w/o making the teeth brittle. I should have 'er back in tommorrow.
 
Not to stress over the gear hardness, it shouldn't be. Too brittle and the starter gear will snap 'em off. You may have been better off just letting it cool on its own. I doubt there will be any real issue tho. You'd have to actually quench it to do any real embrittling. You didn't (couldn't) get it hot enuff in open fire... here is some data...

The "V-notch test" they refer to in the temper embrittlement section is called a Charpy test, BTW.
 
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