Pulling Forum - Two speed for D17

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Two speed for D17

Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Pulling Forum
Forum Description: Forum dedicated to Tractor and Garden Pulling
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=199684
Printed Date: 09 May 2024 at 6:44pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Two speed for D17

Posted By: gcalent
Subject: Two speed for D17
Date Posted: 06 Feb 2024 at 11:03am

I believe it has been done, I would like to convert the power director clutch to a manual shifted two speed without the clutch discs.Any help would be appreciated

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Pullin With AC

Replies:

Posted By: WF owner
Date Posted: 10 Feb 2024 at 7:46am

My question would be why?

The power director will hold a lot of power and is relatively easy to rebuild. Unless, you are planning very extensive engine modifications, a power director should handle all the power a D-17 engine (gas or diesel) would have.

When pulling, you can leave it in either high or low, which you would have to do with a mechanical two speed.

Posted By: gcalent
Date Posted: 10 Feb 2024 at 6:56pm

Extensive engine mods, I'm no sure the clutch package will hold

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Pullin With AC

Posted By: tbran
Date Posted: 12 Feb 2024 at 1:14pm

We pulled a D17 diesel IN THE '70'S - two turbos - always started the sled with hand clutch running ATF - bolted up the foot clutch. 7th gear in 5000 class. Unless you are turning over 4000 rpm the PD clutch will not be an issue. Just as with cast iron flywheels - the clutch is cast iron as well. If still have doubt - find a D19 unit - it has 5 plates in the low side 4 high. (and no we could not keep the head gasket sealed )

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When told "it's not the money,it's the principle", remember, it's always the money..

Posted By: SteveM C/IL
Date Posted: 20 Feb 2024 at 8:22pm

Boy Tim! You guys had some wild hair days back when.....

Posted By: tbran
Date Posted: 21 Feb 2024 at 1:10pm

I have a picture on home computer - will try to post.

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When told "it's not the money,it's the principle", remember, it's always the money..

Posted By: Macon Rounds
Date Posted: 28 Mar 2024 at 9:45pm

Put a D19 PD in it !!!

Been there done that !!!

It is EXACTLY the same design. Just has more clutches.

And you wont loose the ability to shift on the fly.

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The Allis "D" Series Tractors, Gravely Walk behind Tractors, Cowboy Action Shooting !!!!!!! And Checkmate