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Lope

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=127684
Printed Date: 30 Oct 2025 at 4:54pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Lope

Posted By: Charlie175
Subject: Lope
Date Posted: 23 Aug 2016 at 7:05am

Still tinkering with my brother 190xt. It has a lope at idle, what causes this?

It was hard starting and the -49AF pump was timed to 18 btdc. Changed this to 26 and it starts much better.

While idling it will puff black ever so many revolutions when it lopes.

He had his injector tips just replaced but the pump has not been serviced.

The motor is a late D2900 (85,000 serial) probably out of a 7000

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Charlie

'48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD

Replies:

Posted By: DrAllis
Date Posted: 23 Aug 2016 at 7:07am

Set idle speed at 750-800 RPM.

Posted By: Charlie175
Date Posted: 23 Aug 2016 at 7:28am

Thanks

Since the 200/7000 were set to 18 BTDC, was that due to the pump having an auto-advance?

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Charlie

'48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD

Posted By: injpumpEd
Date Posted: 23 Aug 2016 at 7:34am

yes, the 200 has advance. The lope could also be the flex ring is broken.

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210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!

Posted By: Charlie175
Date Posted: 23 Aug 2016 at 7:48am

Thanks for the info.

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Charlie

'48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD