Farm Equipment - G230 engine spark plugs

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G230 engine spark 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=165074
Printed Date: 08 May 2024 at 9:05pm
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Topic: G230 engine spark plugs

Posted By: chuck (WI)
Subject: G230 engine spark plugs
Date Posted: 15 Oct 2019 at 11:00pm

Picked up a g230 engine out of a combine and can't seem to find what the correct spark plugs this engine used, any advice would be helpful.

Replies:

Posted By: DrAllis
Date Posted: 16 Oct 2019 at 7:02am

AC Delco 45XL

Posted By: MACK
Date Posted: 16 Oct 2019 at 7:08am

Early AC45, later AC45XL, depends on thread length in head. MACK

Posted By: chuck (WI)
Date Posted: 16 Oct 2019 at 4:21pm

It's a latter engine, thanks for the info.

Posted By: MeThInK
Date Posted: 31 Oct 2019 at 2:19pm

Chuck,

I have a Gleaner A2 (AII) with the 230 engine. Just checked my plugs and they're Autolite 405.

Mike

Posted By: dawntreader74
Date Posted: 31 Oct 2019 at 3:18pm

the AC plugs work the best

Posted By: chuck (WI)
Date Posted: 01 Nov 2019 at 7:35am

Thanks, mike

Posted By: MeThInK
Date Posted: 19 Nov 2019 at 9:48am

Mack,

Thanks. Looks like AC45XL are not available in my searches. Though I find R45XLS. Still looking though.

Question: I see the manual specifies 25 gap but most of the plugs come 35. Should I gap it down to manual or leave it? Thoughts?

Mike

Posted By: DrAllis
Date Posted: 19 Nov 2019 at 9:57am

.025" is what the ignition system was designed for. .035" is for more modern higher voltage systems. R45XL or R45XLS will work.