Farm Equipment - Z Code Gleaner E Plugs?

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Z Code Gleaner E Plugs?

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=157422
Printed Date: 04 Nov 2025 at 6:11am
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Topic: Z Code Gleaner E Plugs?

Posted By: AaronSEIA
Subject: Z Code Gleaner E Plugs?
Date Posted: 20 Jan 2019 at 8:18am

Needing new plugs for the Z code Gleaner in my D17. What's the best out there? Running stock D17 distributor and points.

AaronSEIA

Replies:

Posted By: d17brown
Date Posted: 20 Jan 2019 at 10:05am

NGK B8ES

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phil

Posted By: DougS
Date Posted: 20 Jan 2019 at 10:25am

NGK says B5ES for a 262. The second number is the heat range. If it's too cold, move up a number or two.

Posted By: Orange Glow
Date Posted: 20 Jan 2019 at 1:07pm

I don’t know the entire science behind spark plugs, and I can’t remember the number of mine. I recently put new Autolites in my WD45 with an E Gleaner in.
My cousin and I were trying to figure out which ones to put in, and from what my cousin found out, is that the heat range on them is only the projection of the ceramic length.
I’ll check next time I see mine and give you the numbers on them, but by that time you’ll likely already have replaced yours!!
Sorry I couldn’t help more.

Posted By: DougS
Date Posted: 20 Jan 2019 at 1:15pm

True that there is more ceramic insulator on the core of a hot plug, but it's built in a way that usually doesn't extend the tip. Too cold of a plug will foul. Too hot of a plug will burn and possibly cause predetonation.