Well here are some pictures of my solution.

My weapon of choice was my trusty multi tool drill thing:-



I removed about 4mm from the dowels - here they are fitted



As far as I am concerned the most important thing is to ensure that the dowels sit below the surface of the balancer - and that they no longer protrude.

If you have the time and you want a proper job get a machine shop to neatly mill away the extra metal from any dowels that are too long - as you may be able to see mine are not very neatly done.

Attached Thumbnails

   

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!