Farm Equipment - Allis 190

Print Page | Close Window

Allis 190

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=50369
Printed Date: 22 Aug 2025 at 3:03pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Allis 190

Posted By: MilesM
Subject: Allis 190
Date Posted: 10 May 2012 at 5:38pm

Okay we have an allis 190 6 cyl gas now we have replaced the following plugs,wires,cap,rotor,points ,voltage reg,resister and fuel pump problem is now the choke needs to stay out in order to run now I could be missing something but im leaning towards a carberator issue does anyone feel im looking in the wrong place or am I on the right track on this thanks for feedback

Replies:

Posted By: CTuckerNWIL
Date Posted: 10 May 2012 at 7:33pm

Start with the gas tank and sediment bowl and follow it down to the drain in the carb bowl making sure you have a good flow of fuel all the way. Also check around the manifold for leaks by spraying a combustible fluid ... WD40 works or carb cleaner... all around the gasket area of the manifold and around the throttle bushing. If the engine rpm picks up at any time you have found a leak that needs fixed first before doing anything else.

-------------
http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com
Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF

Posted By: CTuckerNWIL
Date Posted: 10 May 2012 at 7:34pm

If all of those things check out OK, then start looking at the carb.

-------------
http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com
Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF

Posted By: 2wise4agm
Date Posted: 11 May 2012 at 6:21am

Main jet is plugged in the carb. Pulling out the choke is making it run off the other jet.

Posted By: stray
Date Posted: 11 May 2012 at 6:42am

2wise4agm wrote:

Main jet is plugged in the carb. Pulling out the choke is making it run off the other jet.

No, the fuel jet is restricted and by pulling out the choke you reduce the amount of air entering the intake and making the fuel air mixture right to run, but you will find that it don't have the power it should have.

-------------
1969 190XT series 3

Posted By: 2wise4agm
Date Posted: 11 May 2012 at 8:57am

Sorry, I was thinking of a little different style of carb. Guess I should have said - Try cleaning the main jet.