'A' flywheel torque

DeltaRed

Well-known Member
I have a '44 A,hand start.I am converting to electric start.How much should I torque(tighten) the flywheel bolts on the 'new'
flywheel. They are 3/4" coarse thread.Thanks,Steve
 
Delta,

When I get out to my shop tomorrow, I'll look it up. Those early styled flywheels require a special offset tool to get to the bolts, so it is difficult to use a torque wrench and get an accurate reading.
 
Never seize should not be used willy-nilly as the well meant advice seems to suggest. According to the site I linked to:

quote
When using anti-seize, reduce the lubed chart reading by 20% to properly torque.
Always lubricate and use lubed torque values.
unquote

Over torque would be the result of using never seize with 200 ft/lbs and we don't want that.

I don't have any myself since I don't have a real use for it.
 
"Tighten Securely." That's helpful, isn't it? But that is what I and T has to say about it. I found nothing in the operator's manual, and we don't have a JD shop manual for the A series.

From my observations and experience, those early flywheels with the bolts behind had less cracking/coming loose issues than the later ones with the bolts in front (late A through 30 series).

I would clean the bolts well (new might be better!) and tighten within reason- aka tighten up securely, but without the cheater pipe. Also best to have the Deere flywheel wrench. If that is not accessible, you may need to make an offset to get in there.

There are mucm more specific torques for the later tractors, especially the diesels, but I can't find any data on these earlier ones... probably because the flywheel wrench would screw up any torque wrench calculation.
 
(quoted from post at 13:32:31 08/28/15) I have a '44 A,hand start.I am converting to electric start.How much should I torque(tighten) the flywheel bolts on the 'new'
flywheel. They are 3/4" coarse thread.Thanks,Steve

It's the guessing of torque values that cracks flywheels from too tight and ruins splines from too loose.
3/4 bolts in grade 5 or 8 should be torqued to about 210 ftlb with a torque wrench.
The splines must be clean and oil free.
Another example of why an IT manual is best rolled up and used to swat flies.
 
All points well taken. However, how do you set the torque wrench to compensate for the offset of the flywheel wrench? It is very difficult to use something other than
the Deere offset on the early electric start tractors...
 

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