So, you mean the nut that secures the M47 II output flange was not tightened enough?

Or, what nut do you mean, Boys Brick?

What nut that holds the drive shaft? Three hardware stacks (nut, bolts) for the output flange to the flex coupler giubo. Three to secure the drive shaft front end to the giubo. Giubo has a front facing side. Also, of the six holes in the flex coupler giubo, two set of three are for the out flange to giubo securing hardware stacks (nuts, bolts), and two sets of three for the giubo to drive shaft interface.

Try doing this as a severe dyslexic as you're under the 240. Humorous results ensue, or not so humorous. So you take it all apart and go at it again.

I've encountered these as loose. The M47 output change retaining nut. Well, to snug, barely. Used a chain wrench on the output shaft as counter hold, and using the nut that was there, applied more than adequate torque. Though a new nylon lock nut may be best, the environment is bathed in gear box oil lube a bit.

I donut recall whether the M47 or M47 II out put flange retaining nut was any sort of lock nut, however. Those as they are loose .... wish I had grabbed the junkyard M47s and brought them home. Started a family.

Baronial Volvo 240 Collectionz.
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