new style b7100

   / new style b7100 #1  

ed1978

Member
Joined
Apr 23, 2011
Messages
27
Tractor
kubota b-7100hst
after having major overheating problems....last summer, i removed the radiator....had it steam cleaned, replaced the upper and lower hoses. just came back in the house a few hours ago from mowing my runway, it still overheated. didnt boil over, but lost some from the overflow. and the temp. outside was only 60. there is no waterpump or thermostat on this model. im certain the radiator is clean. have no isues with a blown head gasket....dont see any movement in the top can when its running. 470.00 for a new radiator is my only option. chime in here with possible causes for this occurring. tractor runs fine.....no issues. im getting to the point of buying a john deere:cool:
 
   / new style b7100 #2  
Did you take the radiator to a radiator shop? Did you have it flow tested? Did they rod it out? It sounds to me like you only cleaned the exterior, which is important for airflow but has no bearing on fluid flow. Secondly, how do you know you don't have a head gasket or cylinder head issue? It is rare that one of these machines will have a "major" overheating issue and not crack the cylinder head.

Brian
 
   / new style b7100 #3  
And you expect a John Deere to better why?
 
   / new style b7100
  • Thread Starter
#4  
Did you take the radiator to a radiator shop? Did you have it flow tested? Did they rod it out? It sounds to me like you only cleaned the exterior, which is important for airflow but has no bearing on fluid flow. Secondly, how do you know you don't have a head gasket or cylinder head issue? It is rare that one of these machines will have a "major" overheating issue and not crack the cylinder head.

Brian

i work at a race shop....we have a radiator cleaner we submerge them in. i cant see ant movement at all in the radiator when its running....so that indicates no leakage from the cylinders. and my oil is always clean at the same level. and as far as the second post about a john deere, im just getting fed up with kubotas prices....and lack of knowledge when i ask the dealer a question!!!!:thumbsup:
 
   / new style b7100 #5  
ed1978 said:
i work at a race shop....we have a radiator cleaner we submerge them in. i cant see ant movement at all in the radiator when its running....so that indicates no leakage from the cylinders. and my oil is always clean at the same level. and as far as the second post about a john deere, im just getting fed up with kubotas prices....and lack of knowledge when i ask the dealer a question!!!!:thumbsup:

Personally I would take it to a radiator shop and have them pop the tanks off to see what the core looks like before I spent $400 on a new radiator.

Brian
 
   / new style b7100 #6  
Any way to circulate a radiator flush chemical through the radiator/block and afterwards check the flow through the rad?:) Might even want to do a reverse flush???

If there is a circulation problem it could also be in the block?

Does the steam whistle work. :)
 
Last edited:
   / new style b7100
  • Thread Starter
#7  
Any way to circulate a radiator flush chemical through the radiator/block and afterwards check the flow through the rad?:) Might even want to do a reverse flush???

Does the steam whistle work. :)

thats the problem.....the whistle works.....and yes im going to back flush it with some radiator flush first....after that....its off to the radiator shop to see if they can recore it? .....only with larger tubes this time!!!!
 
   / new style b7100 #8  
Fan belt in good shape also tight,also rad. hose in good shape?
 
   / new style b7100
  • Thread Starter
#10  
im changing the name to bukota....instead of kubota....:thumbsup:
 

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