ferge
Guest
Woody, are U from AlbertaIJIJIJIJ
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Combines project 85903 a success
8780xp
Guest
Just out of pure curiosity and a lack of engine knowledge on my part, what made you choose the 903 engine over any other engine out thereIJ My first thoughts are size and availability, but I'm sure there could be many factors.
woody
Guest
1.size-both 640 and 903 are v8s and are roughly the same length of block.2.horsepower-we found ex US military 903s @400 hp @2800 rpm.3.past experience-we have run a massey 4800 4wd tractor since 1981 and even after boosting the 903 to 375 hp it remains a trouble free engine.4 simplicity-we used the rear motor mounts off the 640 and the whole pulley assembly off the 640 basically bolted onto the 903.
woody
Guest
Yes NW of Drumheller.Brett Adams is my name.
Guy_C
Guest
That sounds like a very interesting combine,you could have a lot fun with that one.The 903 is an excellent engine choice for that combine.Have any picsIJ
hv_user
Guest
That sounds like a neat deal,I have always thought the 903 would make good combine power.Did you have room for a BIG radiatorIJ
woody
Guest
didn't change the rad. it runs cooler than the 640 powered 8590.
woody
Guest
i'll get on that.
ferge
Guest
Brett -- I am the guy that got the small parts off of your 640 -- should have gone the route that u did -- completely rebuilt the 640 and it ran well for about 4 hours and then it blew all the oil out the breather -- two cylinders are bad but don't have it apart yet -- we bought a 9700 for parts and the guy said the engine was good but I doubted it so we rebuilt the original engine in the 8590 -- well when it blew, we put the 9700 engine in and it had more power and only used a couple of quarts of oil for the entire corn harvest -- all those super expensive Perkins parts were a waste!!!!
ferge
Guest
Brett -- I am the guy that got the small parts off of your 640 -- should have gone the route that u did -- completely rebuilt the 640 and it ran well for about 4 hours and then it blew all the oil out the breather -- two cylinders are bad but don't have it apart yet -- we bought a 9700 for parts and the guy said the engine was good but I doubted it so we rebuilt the original engine in the 8590 -- well when it blew, we put the 9700 engine in and it had more power and only used a couple of quarts of oil for the entire corn harvest -- all those super expensive Perkins parts were a waste!!!!