Garden Tractors - 616 with Onan

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616 with Onan

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=100594
Printed Date: 31 Oct 2025 at 1:08am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 616 with Onan

Posted By: sparky
Subject: 616 with Onan
Date Posted: 17 Jan 2015 at 9:18pm

Picked up a nice 616 this week but when running especially at high rpm it leaks oil out of the oil filler/dipstick cap.It isn't over full so is there a crankcase breather or other problem? Thanks much.

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It's the color tractor my grandpa had!

Replies:

Posted By: HudCo
Date Posted: 18 Jan 2015 at 12:21pm

it says in the manual that the breather needs to be disassembled and cleaned every 200hr remove tubfrom air cleaner remove clamp oring cap and valve and baffle wash in solvant clean dry re assembble claen and check for blockage on the breather tube from breather to the air cleaner

Posted By: sparky
Date Posted: 18 Jan 2015 at 12:45pm

Thanks Hud. I'll try that tommorrow.

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It's the color tractor my grandpa had!