Farm Equipment - How much does it cost to turn a screw?

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How much does it cost to turn a screw?

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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=17376
Printed Date: 05 Feb 2025 at 10:52pm
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Topic: How much does it cost to turn a screw?

Posted By: Spud
Subject: How much does it cost to turn a screw?
Date Posted: 29 Aug 2010 at 3:13pm

I notice in the specs for most newer tractors that weights and dimensions are all the same although horsepower varies. If you have 4 tractors in a range from say 180 to 240 hp and all have the same weights and dimensions, that leads me to believe the only difference between them is a turn of the screw on the fuel injector pump. If the higher hp ones had an intercooler and turbo and the smaller ones didn't, there would be some weight difference.

It all leads me to wonder, how much does it cost to turn that screw at the factory or do you buy the smallest and turn the screw yourself?

Replies:

Posted By: cougar766
Date Posted: 29 Aug 2010 at 4:25pm

on the new tractors of today (or atleast some of them) theres no screw to turn its how the computor is programed

Posted By: firebrick43
Date Posted: 29 Aug 2010 at 4:25pm

Many don't have a screw, all larger tractors sold today that I know are at least electronic injection if not common rail. You have to reprogram the computer. Be careful how ever because many use one set of injectors for say the bottom 2 hp ratings and another set for the top 2 hp ratings. The do the same for the turbos, they don't nessessarly have to weight more to push more air, they just have different shape impellors/turbine sections. Also remember, many of the brochures that you are reading are written by marketing which many times gets weight specs and such screwed up. I can tell you for sure on the Case/IH magnums there was some major differences on the magnums above 215 hp. Also remember the current tractors have DPF that can be royally screwed up by putting powerchips on (which are available) and cost 1500+. If you do add chips please at least put a EGT gauge on it to monitor it.

Posted By: RickUP
Date Posted: 29 Aug 2010 at 7:12pm

Get to know an electrical engineer from the factory. You can change alot of things with his computer program. At least with GM anyway. John Deere too.

Posted By: Roddo
Date Posted: 29 Aug 2010 at 9:10pm

A guy that works for cat once told me that sometimes there are absolutely no changes to anything on an engine other than ECM programming. The reason one costs more is as performance goes up, reliability goes down. They have to get paid for those extra warranty claims.

Posted By: firebrick43
Date Posted: 29 Aug 2010 at 10:09pm

Roddo, it depends of the engine. Some its true, some there can be injector/turbo/piston changes. Nice thing about Cat, if it doesn't require an "iron change" as they call it, they will bump it up for a small fee or for free if you buy a used truck from them.

Posted By: 7060
Date Posted: 30 Aug 2010 at 10:48pm

We have a 8970 Ford that is factory at 210 hp. with a 456cu. engine, and a friend has a 8670 with the same 456 engine and turbo and such, but it is 145 hp. The 8670 does weigh a little less to compared to the book. They sound like completely different engines though, and they actually still had a screw on the pump.

Posted By: Calvin Schmidt
Date Posted: 31 Aug 2010 at 5:06pm

Most every manufacturer will deny warranty if you get caught with a power chip. I speek from experience.

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