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Subject: Ring gear installation.

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Dave2N    Posted 06-16-2018 at 19:48:11 [URL] [DELETE]        [Reply] [Email]  
  • Ring gear installation.
  • I put my flywheel in the freezer last nite, put the ring gear on the BBQ. Kept it on grille til the grille read 650 degrees. Can't get the gear on, what my next step?

    K.LaRue-VA    Posted 06-17-2018 at 21:16:06 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ring gear installation.
  • I wouldn't trust the temp gauge on a BBQ grille to tell me anything other than "it's hot". If a BBQ grille is able to get the ring gear to 650, that should have been enough. I laid my ring gear on a bed of coals in the wood stove, and closed the door. Flywheel was on the floor in front of the stove. Grabbed the ring gear with two pairs of channel lock pliers, and it dropped right on.

    Bruce(OR)    Posted 06-17-2018 at 17:04:40 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ring gear installation.
  • Cooperative wife, plywood, stove on broil, 30 minutes, out of stove, onto plywood in kitchen and twp pliers and a hammer. Her on one side and me on the other.
    Work fast.

    Tony C    Posted 06-17-2018 at 18:38:16 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ring gear installation.
  • Yep.

    Years ago in framing a 400 Cummins. Four pistons on one of her cookie sheets, under the broiler. Welding gloves, two pistons six rods, pins and clips on the center island. Sweetie home from work and after pouring herself a glass of wine: "Call me when the pistons are done and I'll start our dinner."


    Dave2N    Posted 06-17-2018 at 18:08:36 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ring gear installation.
  • Lmao, Ok Bruce where do you put the plywood ?

    steveVa    Posted 06-17-2018 at 07:53:59 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ring gear installation.
  • You might try just heating the ring gear and not freezing the fly wheel. The cold fly wheel may be cooling the ring gear too fast and before you can get it on the fly wheel. The fly wheel has much more mass then the ring gear and may just be cooling it too quick. Try leaving the flywheel room temp and have it close by so you get the ring gear right off the grill and on to the flywheel. You might even try running a mapp gas torch around it a few times as it comes off the grill.

    Tim Daley(MI)    Posted 06-17-2018 at 16:35:15 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ring gear installation.
  • Flywheel = cast iron. Ring Gear = tempered hardened steel. Temperature affects the two materials differently. Grill may not be hot enough either...

    Tim Daley(MI)

    TOny    Posted 06-17-2018 at 10:51:24 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ring gear installation.
  • AMen to both suggestions. I've never frozen the flywheel, although I have put in the refrigerator when there was room for a few minutes before I have installed it. No beer was harmed during this operation). Didn't seem to make any difference.

    And....I have had to add heat after taking the ring off the heat source. (BBQ briquettes in a fair sized oil drain pan in my shop usually.


    Den N Ms    Posted 06-16-2018 at 22:51:08 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ring gear installation.
  • Put the ring gear on the BBQ. Kept it on grille til the grille read 650 degrees.That should have worked if it didn't cool off to fast.I always use a acetylene torch to heat the ring gear,or maybe you could try two map gas torches might do it. Or the ring gear directly on a ring of thick bed of charcoal.I should be heated evenly all the way around blue hot(not quite red hot) work fast an make sure it is on the right direction (tapered teeth to the clutch side if the ring gear only has tapered teeth on one side,some tapered on both sides.Work fast tapping it all the way down lightly using a flat end punch and hammer,(let it cool slowly) NO Water To Cool! Replace/check clutch pilot and throw out,trans seal while split, always replace the seal!

    Tony C    Posted 06-17-2018 at 08:58:43 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ring gear installation.
  • I agree, especially regarding the taper. I prefer not to use a torch. Hard to heat it evenly. That said I have done it successfully. 500 to 575 is hot enough. Steel expands at a steady rate per 100* of temperature rise, and, there is a formula for calculating it (long forgotten). So if the ambient temp is 70* Five hundred seventy five to six hundred combined with a cooled flywheel should be enough to expand the ring the few thousandths needed to fit the ring to the flywheel.

    WIthout getting into a long discussion of classes of fit for different applications and different steel alloys a thousandth of an inch per inch of diameter is a good rule. Steel will cease expanding at about six hundred degrees F IIRC.

    Since you are using your Q, get the ring as close to the heat as possible. Covering it with hot coals will work a little quicker and get it rally hot.

    So heat it up, watch the taper, have everything you need, heavy welding gloves, BFH, etc. ready. Be quick, contraction happens fast. As stated above, DO NOT shock cool the ring and flywheel.

    Dave2N    Posted 06-17-2018 at 13:36:34 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ring gear installation.
  • I've tried everything except the charcoal, The gas grille tops off around 650, according to gauge on grille. Bought a 2lb brass hammer and map torch. Watched a half dozens U tube videos. No luck. Maybe this Tisco Argentina ring gear is made wrong.

    Tony C    Posted 06-17-2018 at 14:22:13 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ring gear installation.
  • YouTube has some interesting techniques for certain..

    It isn't unheard of for a replacement part to be out of spec. Tisco may exchange it based on your experience. It's been my experience they are pretty easy to deal with.

    If all else fails you may have to take it to a machine shop or a buddy who has instruments capable of accurate measurement to thousandths and have flywheel and ring measured.

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