Drilling hole for speed sensor in the trans
Thread Starter
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Cruiser
Joined: May 2017
Posts: 125
Likes: 11
From: Wisconsin
Drilling hole for speed sensor in the trans
Has anyone on here drilled their trans to accept a speed sensor for Speedo conversion. I'm not asking about taking it apart and having it machined. I mean got a drill and made a hole.
Not sure I'm getting the question here.
Are you thinking of doing this with the trans in place? Seems impossible, for any number of reasons (how to locate the hole? How to keep the shavings out of the gears? How to drill the hole straight? etc, etc, etc).
I've never thought about doing this, never done it, never heard about it being done, so maybe I'm missing something, but this seems like a pretty bad way to save a few hours to me.
Are you thinking of doing this with the trans in place? Seems impossible, for any number of reasons (how to locate the hole? How to keep the shavings out of the gears? How to drill the hole straight? etc, etc, etc).
I've never thought about doing this, never done it, never heard about it being done, so maybe I'm missing something, but this seems like a pretty bad way to save a few hours to me.
Thread Starter
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Cruiser
Joined: May 2017
Posts: 125
Likes: 11
From: Wisconsin
Again there are ways to solve all those problems, short drill bit, angle drill, vacuum while drilling. And it's more than a few hours to remove the trans and take it apart to bring it somewhere and have it machined.
Seasoned HDF Member
Joined: Nov 2009
Posts: 15,705
Likes: 22,718
From: Farmington ,MS
You'll never keep all of the shavings out of the case, but that probably doesn't matter all that much anyway. The relatively soft metal from the case will just get chewed up by the gears anyway. Won't do the trans any good, but probably won't hurt all that much.
I just don't see how you are going to free-hand a precision, straight hole, without any wobble at all, in precisely the correct location, while controlling the bit when it punches through. Plus, those holes are fairly large...like 3/8" or something, so it's going to take successive passes.
But if you think you've worked out a plan, go for it.
Seasoned HDF Member
Joined: Nov 2009
Posts: 15,705
Likes: 22,718
From: Farmington ,MS
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Seasoned HDF Member
Joined: Nov 2009
Posts: 15,705
Likes: 22,718
From: Farmington ,MS
Or if you use an aftermarket speedo...you can get a rear wheel sensor that mounts to the axle and reads the pulley bolts...takes 5 minutes to install.
https://www.denniskirk.com/dakota-di...prd/H40636.sku
https://www.denniskirk.com/dakota-di...prd/H40636.sku
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