04 mccormick deering engine problems

/ 04 mccormick deering engine problems #1  

nattynuts5886

Member
Joined
May 22, 2012
Messages
29
Location
Wattsburg Pa
Tractor
1940s mccormick deering 0-4, 170 allis chalmer, 950 john deere, 7030 and 7040 allis chalmer 986 international
hello, i am rebuilding a mccormic deereing 04 and replaced bearings, pistons and every thing els and put engine in frame and tryed to use a pry bar to turn the fly wheel but it wouldnt budge do you have any ides what is wrong? thanks :ashamed::confused::ashamed:
 
/ 04 mccormick deering engine problems #2  
What size rod & main bearings did you install ?? The pistons the same as the old one ??
 
/ 04 mccormick deering engine problems #3  
What size rod & main bearings did you install ?? The pistons the same as the old one ??

Sounds correct. Were clearances measured before installation?
 
/ 04 mccormick deering engine problems
  • Thread Starter
#4  
Yes every clearence was measured and was correct
 
/ 04 mccormick deering engine problems #5  
Could the engine have to much compression that you cannot over come. Try turning it with the spark plugs out to releave compression.
 
/ 04 mccormick deering engine problems #6  
Is it in neutral?
 
/ 04 mccormick deering engine problems
  • Thread Starter
#7  
no spark plugs in and it still wont turn, is it possible for a connecting rod to get cockeyed?
 
/ 04 mccormick deering engine problems
  • Thread Starter
#8  
it is just in the frame its not connected to the transmission just sitting in the frame no spark plugs in it either and it is still froze, it has new bearings and sleeves and pistons, could a connecting rod be in slightly wrong?:confused:
 
/ 04 mccormick deering engine problems
  • Thread Starter
#9  
Yes every clearence was measured and was correct

it is just in the frame its not connected to the transmission just sitting in the frame no spark plugs in it either and it is still froze, it has new bearings and sleeves and pistons, could a connecting rod be in slightly wrong?
 
/ 04 mccormick deering engine problems #10  
Could be a connecting rod installed backwards (180degrees out) or too tight of fit on the parts.
 
Last edited:
/ 04 mccormick deering engine problems #11  
Rods and caps are numbered, as I'm sure you know, and numbers should face the camshaft side. Did you put a bit of oil on the bearings before installing..?? The rods caps and bolts are normally a pretty snug fit, so thinking it would be tough to be mis-aligned.

Is the cam and crankshaft timing mark(s) in proper alignment..?? Maybe try loosening the valve train assy., then see if the engine will turn over.

Was the crank turned, and machine shop supply the bearings, or bought in a kit..??
 

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