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!!!!