perkins ad3 152 flywhell

   / perkins ad3 152 flywhell #1  
J

jack09

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Apr 13, 2020
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7
Tractor
Jumz Eo2621a
should the flywheel in the perkins come on the crankshaft tight? or only screws holding it in place?
332940231_2815030808634230_4926677350155933045_n.jpg
 
   / perkins ad3 152 flywhell #2  
It should be tight. Are your bolts original? There is a shim, 187886M1 that can be used if the bolts are bottoming or hanging on the bolt shoulder. You could also trim the bolt length, but you need to determine what is causing this
 
   / perkins ad3 152 flywhell #3  
Shouldn't there be a dowel pin to actually locate the flywheel? The bolts (alone) will have that kind of freeplay, normally.
 
   / perkins ad3 152 flywhell #4  
gstrom99 said:
Shouldn't there be a dowel pin to actually locate the flywheel? The bolts (alone) will have that kind of freeplay, normally.
Click to expand...
I started to say that, but the parts book doesn't show one. It would help, but there looks like there is clearance between flywheel and crank
 
   / perkins ad3 152 flywhell #5  
Did this combination run before, or has something been changed here? The shim mentioned shows up on engines with a rope type rear seal, but not with a lip seal.
 
   / perkins ad3 152 flywhell
  • Thread Starter
#6  
it was warking on this setup,but in most tractors/cars that I had the opportunity to dismantle the crank shaft overlapped the flywheel thigtly, and here it seems that they practically hold it only screws/pin.

the crankshaft broke but on the other side, I don't have a retaining pin, I'll go to the turner to turn pin
IMG20230209185649.jpg
IMG20230209185141.jpg
on a lathe
 
   / perkins ad3 152 flywhell #7  
Okay, different crankshaft explains a little more. A pin is good, but you still need a tight fit flywheel to crank with or without a pin. Is it the bolts are bottoming out in the crank that is preventing the looseness?
 
   / perkins ad3 152 flywhell
  • Thread Starter
#8  
the bolts are not tight in holes, I turned the flywheel to the crankshaft at 105Nm and checked the
radial play 0.35mm,
axial play 0.05mm.
i think its ok?
on workshop manuał max is 0.3 and 0.03 but...
IMG20230309170332.jpg
 
   / perkins ad3 152 flywhell #9  
How does the flywheel fit on the old crank? Same as this, or was it a tight enough fit to self center?
 
   / perkins ad3 152 flywhell
  • Thread Starter
#10  
Harry in Ky said:
How does the flywheel fit on the old crank? Same as this, or was it a tight enough fit to self center?
Click to expand...
IT was the same fit like old one, not tight and IT was without dowel pin.
The flywheel has only 2mm of recess for the crankshaft.
Enigne is in forkllift.
i also have a second crankschaft but its was very bad fit
IMG20230309151211.jpg

in tractor flywhell looks similar
 
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