Posted by t.r.k. on August 29, 2012 at 19:15:50 from (220.127.116.11):
In Reply to: Re: 403 in a U posted by nl00sb on August 29, 2012 at 18:27:45:
There are 2 ways to go.
1. Put crank, rods, blocks and heads on the U crankcase, use the U starter flywheel.
2. Put entire 403 in U, use 403 power unit flywheel and starter. May have to grind clearance for the starter in the transmission bell housing.
Either way creates problems with water return to radiator. (I solved this by using a diesel return inlet. Turned it upside down. But I was putting the 403 in a U diesel. May be hard to find, only 700 diesel Us were made.)
Another problem to overcome was the water bypass. I ran a tube up to the extra pipe plug in the U water manifold. I think some people just plug it off. If you want a temperature sensor in the return manifold you may have to be creative to make it fit under the hood.
The U radiator may prove to be marginal if you intend to work it. For a few minutes pulling it should be o.k. Mine could pull the bog in 4 th gear, but would soon boil the water. An extra thick core in the radiator helped some, but its still marginal.
Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a Company you can trust and have generous return policies! Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ More Info ]
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.