Farm Equipment - Deutz Allis 1920 smokin like a freight train

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Deutz Allis 1920 smokin like a freight train

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=48184
Printed Date: 27 Aug 2025 at 4:11pm
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Topic: Deutz Allis 1920 smokin like a freight train

Posted By: DougG
Subject: Deutz Allis 1920 smokin like a freight train
Date Posted: 30 Mar 2012 at 11:29am

Got a 1920 DA \Simple garden tractor with a 20 horse Kholer - it was running great , now you can be cutting grass and suddenly it will just start smoking like a train for a bit then clear up and run perfect again , any suggestions ?

Replies:

Posted By: Matt Tallant
Date Posted: 30 Mar 2012 at 11:35am

To much oil.It will stop...

Posted By: DougG
Date Posted: 30 Mar 2012 at 11:47am

The oil levels right on full - wonder if brokin rings would do that just sometime ?

Posted By: DonBC
Date Posted: 30 Mar 2012 at 3:14pm

It might be that oil is being sucked into the carburetor through the crankcase breather. I am not familiar with that engine but many engines pull their crankcase ventilation from the pushrod or valve spring area. If surplus oil can't get back to the crankcase quickly enough it will get pulled over into the intake to the carburetor.

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Jack of all trades, master of none

Posted By: 427435
Date Posted: 31 Mar 2012 at 11:31am

When was the last time you pulled the shields and cleaned the grass out of the fins?? Hot engines equals lost temper in the rings.

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Mark

B10 Allis, 917 Allis, 7116 Simplicity, 7790 Simplicity Diesel,
GTH-L Simplicity

Ignorance is curable-----stupidity is not.

Posted By: mgburchard
Date Posted: 31 Mar 2012 at 1:00pm

to much oil

Posted By: DougG
Date Posted: 31 Mar 2012 at 1:02pm

Done all that a couple weeks ago; with a major tune up

Posted By: Macon Rounds
Date Posted: 31 Mar 2012 at 1:30pm

What color was the smoke? Black or Blue.

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The Allis "D" Series Tractors, Gravely Walk behind Tractors, Cowboy Action Shooting !!!!!!! And Checkmate

Posted By: Lars(wisc)
Date Posted: 31 Mar 2012 at 2:30pm

crankcase ventilation problem

Posted By: Bob wi
Date Posted: 31 Mar 2012 at 3:23pm

got a free rider a year ago with the same problem 15.5 horse briggs, turned out to be just a bad head gasket, runs perfect with no smoke