Garden Tractors - Rebuild kit?

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Rebuild kit?

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Garden Tractors
Forum Description: A great place to discuss the Simplicity and Allis Chalmers Garden Models
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=86168
Printed Date: 22 Nov 2024 at 10:33pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Rebuild kit?

Posted By: Tractor
Subject: Rebuild kit?
Date Posted: 10 Mar 2014 at 7:38pm

i'm new to the forum and my brother and i are restoring an allis chalmers b-12 and i was wondering if there was anywhere to get a rebuild kit for the a briggs and straton 12 hp engine?

Replies:

Posted By: Clay T. Souerdike
Date Posted: 11 Mar 2014 at 11:05am

http://www.ebay.com/bhp/briggs-stratton-engine-rebuild

when in doubt turn to ebay? I thnk I saw a 12 hp one on that list.

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“You are not entitled to your opinion. You are entitled to your informed opinion. No one is entitled to be ignorant.” - Harlan Ellison

Posted By: Tractor
Date Posted: 12 Mar 2014 at 6:46am

Ok thanks

Posted By: Steve Kauffman
Date Posted: 12 Mar 2014 at 4:17pm

Hey foxes about time you get on this forum
Steve

Posted By: ctbowles58
Date Posted: 12 Mar 2014 at 10:14pm

napa, can get them.

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190XT 2WD45 WF D15 D14 CA BIG10 302 & 303 bailers 77G rake 80R mower 6 plows and alot more

Posted By: ACmowerguy
Date Posted: 12 Mar 2014 at 10:29pm

The original B-12 engine is a model 300421 ? or something close. Briggs has discontinued the oversized pistons for that engine and I don't believe Rotary or any other manufacturers make replacement pistons. Rods can be had through Rotary or Primeline. Over on the SimpleTractors forum several members have bored their 12hp blocks out to the standard bore for a 32 cubic inch Briggs (14hp to 16hp). The 12hp CI engine has the same external dimensions and the block is the same thickness as the 14-16hp CI Briggs engines. The pistons STD, .010, and .020 are readily available for these engines and it will give you more power. You might need to change to a 14hp CYL head but it is a direct bolt-on replacement.

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10 various B-series garden tractors, AC Homesteader8, 416 hydro,710 gt, 914, 916H, 917H, 920D, and many misc attachments

Posted By: Tractor
Date Posted: 13 Mar 2014 at 5:18pm

does anybody know where to find the model number on the engine? i've been looking but i can't find it.

Posted By: ACmowerguy
Date Posted: 13 Mar 2014 at 6:17pm

It should be on the blower cover, just to the right hand side of the carburetor.

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10 various B-series garden tractors, AC Homesteader8, 416 hydro,710 gt, 914, 916H, 917H, 920D, and many misc attachments