Farm Equipment - Diesel tach

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Diesel tach

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=21228
Printed Date: 31 Oct 2024 at 11:32pm
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Topic: Diesel tach

Posted By: DanNESD
Subject: Diesel tach
Date Posted: 22 Nov 2010 at 10:04pm

Is the tach for a series II D17 diesel the same as a gas?

Replies:

Posted By: JC-WI
Date Posted: 22 Nov 2010 at 10:51pm

tachs were opposite of each other

Posted By: Brian Jasper co. Ia
Date Posted: 23 Nov 2010 at 12:47pm

No. I'm pretty sure the drive turns opposite between the two. There is a place in Independence Mo called Metro Speedometer that can restore/calibrate yours. If you don't have one at all, I would guess that one from a D19D would probably work, just may not be accurate.

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Posted By: norm[ind]
Date Posted: 23 Nov 2010 at 8:13pm

gas tachs are 1to1 calibration diesel s are 2to1 calbration due to camshaft drive

Posted By: DanNESD
Date Posted: 23 Nov 2010 at 9:33pm

My Diesel didn't have a tach when I bought it and none of my parts cataloges have them so does someone have a good one they would be willing to part with?

Posted By: Lonn
Date Posted: 24 Nov 2010 at 5:23am

The diesel one is opposite of the gas tach. I sold one last winter. Someone on this site bought it. It was an Allis NOS. I don't remember the name right now but if I see him post I'll recognize it. He was installing it in a newly restored diesel 17. If he sees this I hope he can offer a pic of the restored tractor. I'll probably regret selling it someday but oh well.

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