(800) 853-2651
SHOP NOW

Ream guides?

H

Henrik Jansson

Member
Is it really necessary to ream the valve guides when you have installed new guides?
The shop here had not heard about that, and they never did so on newer tractors.
This is a Case 1370, and the shop manual says that I have to ream the guides.
How are you used to do?
 
20 years ago when I did head work we had a reamer that was run through the guides after they were pressed in, I assume that still has to be done. The reamer was available from CASE then. Rod.
 
If the guide/valve stem clearance is correct, no reaming is needed. If the valve stem/guide clearance is tight or the valve won't fit into the guide at all, reaming or honing will be needed to obtain the correct fit. Usually the stem/guide clearance is around .0015-.003. Check the published specs for the correct stem/guide clearance.
 
If you ordered guides from case then you will probably need a reamer. If you ordered guides from an aftermarket source chances are they will not need reamed. If the valves fit into the guides then do not worry about them. Use straight 30 weight oil during the warm season will help prevent worn valve guides in the future.
 
You must log in or register to reply here.

Similar threads

D
Model 80 Pup Motor
Replies
7
Views
397
deerlandveg
D
S
to-30 valve guide installation
Replies
3
Views
635
rustred
rustred
R
8N stuck valve guides
Replies
5
Views
901
rbuckel
R
C
Oliver OC 3 Engine Work
Replies
7
Views
805
millercodave
M
J
I Harp & Harp But It Happened Again!!
2
Replies
25
Views
2K
cushman
C
Tractor Parts Tractor Manuals

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

Back
Top