Posted by jdemaris on September 27, 2008 at 06:32:38 from (72.171.0.149):
In Reply to: OT 6.5 Chevy diesel posted by biggerred on September 26, 2008 at 19:21:10:
It is the lightest V8 diesel ever made in the US, and was never intended for severe duty. Detroit Diesel originally was asked to design it as a direct-power replacement for 305 gas engines - with fuel mileage in mind - NOT heavy use. Started out as the 6.2, then got bored to 6.5 with an added turbo, and then added electronic fuel controls. Military 6.5s retain the mechancial fuel systems.
I've gotten over 200K with several, and 520,000 miles on one. But, that's NOT with heavy use.
The Ford 6.9 and 7.3 is built much better, and the Cummins 5.9 better yet.
6.5 has a light block that has cracking problems in the main-bearing webs - and sometimes #8 cylinder. Main bearing cap-bolts were downsized from 12MM to 10MM in later engines to keep blocks from cracking. Also has a cast-iron crankshaft that sometimes snaps in two. Also uses a timing chain instead of gear drive. Also has light cylinderheads that are prone to cracking and most have no hardened seat-inserts. From 1994 and on, 6.5s had awful problems with electronic fuel controls. Many later got updated and somewhat fixed.
Compare to a Ford-IH 6.9 and 7.3. Much heavier block, forged steel crankshaft, gear-drive cam and injection pump, and much heavier heads with hardened inserts. 6.9 and 7.3 was also durability tested and rated for HD use. Pretty good considering IH built if from an existing truck gas-engine format. Made off the MV404 and 446 gas-engine basis.
I won't even mention all the specs on the Cummins 5.9. It's a true long-stroke truck engine and worlds different than the aforementioned.
GM 6.2s and 6.5s weigh 650 - 700 lbs. Ford IH 6.9 and 7.3s weigh 900 - 950 lbs. Cummins 5.9 weighs 1,036 lbs.
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 ]
Today's Featured Article - Ford Part Number Trivia - by Forum Participants. "Replaced by" means the part was superseded. All of my part books date back to 1964 and New Holland have changed some part numbers. They usually put the old Ford part number on the package. I was suppressed when I looked up the part number of the auxiliary drive shaft because for some reason the part number went through a radical change and it lost its "Basic Part Number". Ford part numbers follow the following rules. Most part numbers are in three parts. The middle part is called the
... [Read Article]
Latest Ad:
Sell 1958 Hi-Altitude Massey Fergerson tractor, original condition. three point hitch pto engine, Runs well, photos available upon request
[More Ads]
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.