Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Tractor Pulling Discussion Forum

Hard blocking

Welcome Guest, Log in or Register
Author 
Pawn

03-28-2005 19:16:09




Report to Moderator

What kind of material do you us to hard block something. Will it expand at different rates than the sleeve will.




[Log in to Reply]   [No Email]
dan m

03-28-2005 19:27:59




Report to Moderator
 Re: Hard blocking in reply to Pawn , 03-28-2005 19:16:09  
most of the hard block (brand name). are a mortor or concrete mix with iron granuals mixed in. they recomend more piston clearence with it so i assume it doesn't allow the sleeve to expand as much. i won't use it. just keep 1/8" wall thickness on sleeve and run coolant. it's much more consistsant and reliable.



[Log in to Reply]  [No Email]
Pawn

03-28-2005 19:48:59




Report to Moderator
 Re: Hard blocking in reply to dan m, 03-28-2005 19:27:59  
Will 1/8 thick sleeves hold up to being stroked.



[Log in to Reply]  [No Email]
farmall2

03-29-2005 07:38:15




Report to Moderator
 Re: Hard blocking in reply to Pawn, 03-28-2005 19:48:59  
NO! You must hard block at least half way to hold a stroker's extra side thrust on bore. Hope this helps



[Log in to Reply]  [No Email]
stroker 88

03-30-2005 20:03:00




Report to Moderator
 Re: Hard blocking in reply to farmall2, 03-29-2005 07:38:15  
bull! ran a 5 3/4" stroke with 7" rod 1/8" wall thickness on sleeve. 4 1/8" bore ran 3 years sold tractor and it is still running. sleeves haven't been a problem wrist pins and pin bushings sure do take a beating at that rod angle though.



[Log in to Reply]  [No Email]
CrazyAllis

03-29-2005 19:14:27




Report to Moderator
 Re: Hard blocking in reply to farmall2, 03-29-2005 07:38:15  
If you get the rod to stoke ratio right and use the correct skirt design piston you should never have to hard block a tractor engine.These hairbrained ideas that are propagated by individuals lacking in technical training with no idea of the principals of mechanical engineering serve as a constant reminder of; if you don't know what you're doing, ask someone that does,NOT someone that THINKS they do.

[Log in to Reply]  [No Email]
stroker 88

03-31-2005 17:52:40




Report to Moderator
 Re: Hard blocking in reply to CrazyAllis, 03-29-2005 19:14:27  
yeah, and without hardblock we can run the tractors more than 5 minutes without burning them down. also if we ever need to we can still replace the sleeves. just like a stock one.



[Log in to Reply]  [No Email]
farmall2

03-29-2005 20:14:28




Report to Moderator
 Re: Hard blocking in reply to CrazyAllis, 03-29-2005 19:14:27  
Where are your engines and how are they doing? If you had a clue a shorter rod in low rpm engine speeds up the piston. Like running higher rpms but you arn't. You are talking race car engines. There a longer rod gives you more dwell on tdc and gives fuel time to burn thus more hp at high rpms.



[Log in to Reply]  [No Email]
clarence barenie

03-29-2005 19:55:51




Report to Moderator
 Re: Hard blocking/crazyallis in reply to CrazyAllis, 03-29-2005 19:14:27  
Since you know so much, I must ask, what is the best ratio to use in a 4 cylinder gas tractor pulling motor !
Next question ? what do you do with a connecting rod that, to maintain ratio is sticking upside the head !
PRETTY POWERFULL STATEMENT HERE, could you explain
stroke too ratio and the beneifit or lack their of !
I'm starting at 1.91-1.00 going to (with stock rods) 1.60-1.00

thank's for your input !

[Log in to Reply]  [No Email]
Flyin Farmall

03-29-2005 07:57:28




Report to Moderator
 Re: Hard blocking in reply to farmall2, 03-29-2005 07:38:15  
I know of quite a few stroked engines that don't have hard-block,and do just fine.You can solve the side thrust problems,with using different length rods.



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


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. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 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