Im installing new rings on my old pistons. All is going smooth until, as I was installing my rings I noticed the seven oil holes in 50% of the piston under the oil ring. #1 piston oil holes are on bottom or lowest 1/2 of the piston and #2 oil holes are on the top or highest 1/2 of the piston.(Pistons are still connected to rods the way they were removed)This leads me to believe someone installed one of the pistons upside down sometime in the past. possibly, this is why #2 cylinder was not in as good of shape as #1. Does anyone know the proper placement of these oil holes under the oil ring? up or down?
- Thread starter Neils
- Start date
Pete in MD
Well-known Member
- Location
- Central Maryland
Your #1 piston is correct. Your #2 piston should be installed like #1. Remove #2 piston from the rod and turn it over.
Look for the marks Mike M mentioned.
Look for the marks Mike M mentioned.
Hey Mike M, I gave a careful look at both pistons skirt, Im not seeing any "TOP" marking or stamp, just the part No. "H212R" on both. The rods are marked as follows H800R, CIRCLE "L" No.1 w/21 & No.2 w/11. numerically that would be backward but I did mark them as they came out. Im assuming the holes half way around the piston under the oil ring will go down like the No.1 was originally. The part No. match stock in the book so I wonder why mine don't show "TOP"
Mike(NEOhio)
Well-known Member
- Location
- Newbury, Ohio
Mine has dimples like punch marks on the rods and caps. Dimples face up,one for left, two for right. Top bolt on each cap is upside down to clear the camshaft.
Look at the flat machined surface clear at the bottom lip like what it sets on if you stand them up on your workbench. It will be at 90* to the way the piston pin goes thru.
IIRC the H212R are the standard size and these are marked on the bottom.
Now if they were oversized pistons then Deere usually marked info on them on the top of the piston head.
IIRC the H212R are the standard size and these are marked on the bottom.
Now if they were oversized pistons then Deere usually marked info on them on the top of the piston head.
Similar threads
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.
Copyright © 1997-2024 Yesterday's Tractor Co.
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy