Farm Equipment - another tach problem...8050

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another tach problem...8050

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=19587
Printed Date: 08 Feb 2025 at 5:50am
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Topic: another tach problem...8050

Posted By: jb from md
Subject: another tach problem...8050
Date Posted: 17 Oct 2010 at 9:33pm

the tach on my 8050 quit now, i want to make sure its the sensor and not the tach. if i test the wires that go to the sensor they both read 3,5 volts. what should they read? if i apply voltage to the wires with my power probe the tach needle goes up all the way, wich tells me that the tach is working. is it possible to ohm out the sensor or not if so what should they be? dealer wants $265 for the sensor . he said he has only sold two in the past eight years according to his records, what else should i look for? as always thanks in advance....Jb

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8050 FWA, 190XT, 185, Styled wc, Unstyled wc, (2)C, (2)WD45NF, WD45WF, WD,416h, 716h, 312h, 8070 pedal.

Replies:

Posted By: Kevin in WA
Date Posted: 17 Oct 2010 at 10:49pm

The pickup unit is a common item, I bought an isspro one for about 40 bucks for my 8070, Pretty sure it is 3/4 fine thread.

Posted By: randy
Date Posted: 18 Oct 2010 at 3:57pm

Where did you get a issopro sensor at?

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CA WD WD45 D17 D17 Diesel 7060 8050 8070