Farm Equipment - Gleaner F diesel combine

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Gleaner F diesel combine

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=20593
Printed Date: 10 Feb 2025 at 8:02pm
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Topic: Gleaner F diesel combine

Posted By: tododell48
Subject: Gleaner F diesel combine
Date Posted: 09 Nov 2010 at 5:55pm

I have just exchanged a gasoline powered F-2 combine with an F diesel engine. I have had complete success with the exception of getting the tachometer hooked up. The F-2 gas model used a sensor in the flywheel housing to sense engine RPM but the diesel has no sensor in the flywheel housing. Does anyone know where the diesel gets its tach impulses from. HELP PLEASE!!!!!

Replies:

Posted By: KevinON
Date Posted: 09 Nov 2010 at 6:31pm

I am thinking that I could be from the end of the alternator? HTH.

Posted By: tododell48
Date Posted: 09 Nov 2010 at 7:04pm

Hey HTH; I sure appreciate the quick answer. I think that you could be right. I did notice that the alternator on the F diesel had previously replaced with a cheaper alt with built in regulator. I guess I need to look up orignal alternator and see if it had a tach wire. Thanks Again.

Posted By: E7018
Date Posted: 09 Nov 2010 at 7:16pm

The engine that you took out, was it a Chevrolet or Allis?

Posted By: tododell48
Date Posted: 09 Nov 2010 at 7:22pm

The engine was a chevrolet.

Posted By: JoeO(CMO)
Date Posted: 10 Nov 2010 at 6:49am

Thinking of wrong machine, sorry

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Posted By: Sam T-Ga
Date Posted: 10 Nov 2010 at 7:53am

look at the main drive pulley there should be notches on it where a magnetic pickup would pickup rpms. They would be on the inside, engine side, of pulley. Pickup is bolted to combine frame.

Posted By: tododell48
Date Posted: 10 Nov 2010 at 6:52pm

Thanks Sam-t Ga,I will check out your suggestion and post what I find. I did however think that I looked at the area that you suggested, but I'm not sure. Thanks Again!