190xt diesel
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=169150
Printed Date: 05 Jul 2025 at 11:32am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 190xt diesel
Posted By: Donkeyboy
Subject: 190xt diesel
Date Posted: 16 Mar 2020 at 5:49am
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Pulling my hair out.Single dot cam to crank,double dot crank to idler,single dot to injection pump.Back off 26’ BTDC no run.Rotate pump 180 tractor runs but smokes.HELP
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Replies:
Posted By: DrAllis
Date Posted: 16 Mar 2020 at 7:13am
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As much trouble as you are in, you should pull the valve cover. Place the crank pulley on TDC. Both valves on the #1 cylinder should be loose and both valves on #6 should be tight. If this isn't so, rotate 360 degrees and it will be right. Back the engine up to 40 degrees BTDC and then forward to 26 degrees BTDC. At this time your marks inside the injection pump timing window should be aligned. I assume they are not, so the pump body either needs to be rotated, OR the pump driveshaft rotated one tooth in whatever direction it takes to get the pump marks to line up.
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Posted By: ebowman
Date Posted: 16 Mar 2020 at 7:15am
If I remember correctly from my rebuild, the key on the crankshaft should be straight up (this should line up the dots with the cam gear and line up dots on the idler gear) and #1 should be TDC. Also, at that time the injection pump shaft (pump side) should be vertical. At this time the timing marks on the pump should not be lined up. When you roll the engine for timing the marks in the pump should align. Sound like your off 180+/- degrees
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WD45, '62 D17 Diesel, '65 190XTD, '74 7030, 1958 Roto-Baler
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Posted By: Donkeyboy
Date Posted: 16 Mar 2020 at 7:23am
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I’ve rotated the motor a 1000 times. I can’t get the tdc with just 4 rotations of the crank.That seems very odd.Does the injection pump mark rotate the same as the cam?
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Posted By: DrAllis
Date Posted: 16 Mar 2020 at 7:35am
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If you truly have the crank gear and cam gear marks in time, DO AS I SAID. FORGET ALL THE OTHER MARKS. A-C EVENTUALLY ELIMINATED THEM BECAUSE THEY WERE TOO CONFUSING.
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Posted By: Donkeyboy
Date Posted: 16 Mar 2020 at 7:37am
Posted By: Donkeyboy
Date Posted: 16 Mar 2020 at 10:17am
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Since my book was wrong on timing marks.Is the cold set on valves .018?
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Posted By: DrAllis
Date Posted: 16 Mar 2020 at 11:25am
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