Hi Rob,

You could measure the two flat sides of the nut to get the size right for a socket or buy a socket set.

You can bend a bit of metal to fit on both sides then use a ruler or cut out some cardboard and measure that.

Norm had this problem and instead of spending money and time on a rebuild just put a Victa 2 stroke de compressor in.

If you replace the camshaft to fix the decomp problem there is no guarantee it won't just break again.

Cheers
Max.

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150mm 100mm 0.1mm Electronic Digital Caliper.png (192.43 KB, 15 downloads)
32pcs Mechanics Tool Set 1_2.png (251.67 KB, 15 downloads)
Socket Sets.png (50.44 KB, 15 downloads)