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Old 08-16-2019, 05:10 PM
upallnight's Avatar
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Bunch of Amateurs. I use a torque multiplier tool when the torque exceeds my torque wrench. With a 4:1 ration 300 ft.lb. is only 75 ft.ib.

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Old 08-16-2019, 06:11 PM
Join Date: Nov 2014
Location: SF Bay Area
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Originally Posted by upallnight View Post
Bunch of Amateurs. I use a torque multiplier tool when the torque exceeds my torque wrench. With a 4:1 ration 300 ft.lb. is only 75 ft.ib.

Nice! I too have a torque multiplier, as I used in the following thread with pics for the crank bolt on my M54:

Especially useful in places where you can't get a long lever in there or stand on a breaker bar.

If I did not have that tool, in this case I would do it by standing on a breaker bar at the proper radius.

Also, looking at that youtube video, I'll point out that there are at least two distinct classes of tools like this.

The one I used in that linked thread, and the one you mention, are general purpose things to get about 3-4x multiplication (I think mine says 4x gearing, but due to losses, the torque is 3.3x).

The one shown in that video is a 25x (standard for that type) that is kind of a special purpose tool for lug nuts on heavy equipment. So the bracing bar there is meant to butt up against a neighboring lug nut, vs. on the general purpose ones, there is a place to accept a bracing bar so you can choose the length based on what's available and brace it against what you can. In my case there I used a jack stand to brace against.

So just in case someone out there wants to get one, consider the 3-4x ones more general purpose tools that you'd be able to use.
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Last edited by oldskewel; 08-16-2019 at 06:55 PM.
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Old 08-16-2019, 11:09 PM
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Join Date: Jun 2015
Location: Racine, WI
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I want one of those torque multipliers very badly. Found a couple in the just over $200 range. 4:1 gear ratio usually about 3.3:1 torque ratio so read the manual (or the label on the side).

I was going to get one last time I had to remove an axle nut that wouldn't budge with 4' breaker bar so I bought the 1100 ft·lb M18 Milwaukee high torque Impact.

I still want the torque multiplier as it's much more controlled power for pressing bearings in-place.

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