Farm Equipment - Looking for a little help

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Looking for a little help

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=172291
Printed Date: 15 Sep 2025 at 5:01am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Looking for a little help

Posted By: Darrell G (MN)
Subject: Looking for a little help
Date Posted: 24 Jun 2020 at 7:17am

I am trying to rebuild a marvel schubler carb on a D-15 series 2 and the small seat in the bottom of the bowl will NOT come out. I am looking for ideas on how to remove that seat, I have a kit to rebuild it and that is the last obstacle in the process.

Replies:

Posted By: MACK
Date Posted: 24 Jun 2020 at 9:49pm

Why do you want it out? MACK

Posted By: jaybmiller
Date Posted: 25 Jun 2020 at 6:11am

Might be one of those 'leave well enough alone' situations.

Assuming the seat is slotted, you'll need a PERFECT fitting screwdriver. test and modify a screwdriver for a firm EXACT fit, both width AND vertical side walls !!!

Then use 50/50 ATF/acetone and soak carb for 1-2-3 days, maybe preheat the seat area(very warm. not 'flashpoint hot' !!.

Securely put carb in big ,steady vice.. tight not Tight...

Attach vicegrips TIGHTLY to the special screwdriver just above the top of the carb

Put good downforce on screwdriver with right hand, use left hand to 'jerk' the vicegrips fast, about 90*.

if, IF it move,add more 50/50 mix,relax take a break, then slowly go 1/2 turn out, 1/4 turn in, repeat a zillion times, and you've won.

This is truly a ONE CHANCE event...you NEED patience,the correct tools and technique to suceed....if you don't have all 3.....sigh..you'll need another carb body.

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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)

Never burn your bridges, unless you can walk on water

Posted By: Jim.ME
Date Posted: 25 Jun 2020 at 6:30am

I haven't tried it myself yet, but have seen some postings of boiling the body in water for a time having success in freeing jets/brass parts in a carb.