Automatic trans steel plates?
Years ago when I did trannys at a Chrysler dealership I used to sand the steels to put a cross hatch in them. Just curious to see what others are doing to the steel plates. Do you install them as is , sand blast, sand or anything else? Thanks in advance for the opinions.
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Re: Automatic trans steal plates?
The transmission shop i managed used a local metal polishing company that would use a vibratory or tumble polish process. The plates had a hammer type finish to them. It worked fine for most of the rebuilds we did. However if I was doing my own transmission , I’d replace the steels if there was the slightest question of their condition. For as little as they cost it’s just cheap insurance.
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Re: Automatic trans steal plates?
I always install new plates and was curious to see if anyone did anything with them from new.
Thanks again |
Re: Automatic trans steal plates?
I use Alto Red Eagle clutches and Kolene steels. Type F fluid.
However, you can use one of those angle die grinders, a 2" or 3" Roloc backer, and ScotchBrite discs, on untreated steels, to create that crosshatch. You can also use them on steel drums where a band is applied. |
Re: Automatic trans steal plates?
Thanks Alan, I picked up some red 2 inch discs for my angle die grinder and will give that a try. I will experiment on some old ones first. Thanks again for the info.
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Re: Automatic trans steal plates?
Why make the surface of the steels like a washboard with a grinder? I thought it was contact area it needed.
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Re: Automatic trans steal plates?
The surface finish has a lot to do with how the clutch applies . Grooved plates , will hold oil and slow down the apply . Quickest shifts will be with flat , smooth steels .
BTW , If a steel plate has heat spots on it , then throw it away . If you measure the thickness of the steel plate at a heat spot , compared to a non heated area , it will be thicker . Those heat spots are actually showing a change of metallurgy of the steel which swells the metal . If you glass bead the steel , or sand it , it doesn't really fix the problem of a hot spotted plate . Those swelled areas will shorten the life of the clutch plate , which will be running on those high spots . Best to have a nice new flat , and smooth plate . |
Re: Automatic trans steal plates?
Thanks for that info. I am installing new steals and leaving them as out of the box. The scotchbrite is to remove the glaze from the reaction plates that are not readily available for these transmissions .
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