Farm Equipment - 8030 tach problems

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8030 tach problems

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=205853
Printed Date: 16 Mar 2025 at 2:16pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 8030 tach problems

Posted By: SteveMaskey(MO)
Subject: 8030 tach problems
Date Posted: 13 Mar 2025 at 7:22pm

My tach on 8030 won't move until ½ throttle. Is there something you can adjust to make it work correct or does this mean it is shot

Replies:

Posted By: 8070nc
Date Posted: 13 Mar 2025 at 8:12pm

It was the pickup on mine. Its in the plate at the bell housing under the starter

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1984 80780
1957 D14
DES 300 with 25000 engine
616 tractor

Posted By: SteveM C/IL
Date Posted: 15 Mar 2025 at 12:14am

My 8070 does that sometimes....then it's working again. It's adjusted correctly.

Posted By: DSeries4
Date Posted: 15 Mar 2025 at 9:26am

Mine goes up to 2500 rpm when you first start it, then returns to actual engine speed after a minute or so.

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'49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '61 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080