10-02-2021, 04:58 AM
I have done a careful assessment of a number of blocks I have had for years before building a new motor.
The majority of these are cracked between the centre stud tapped hole and the 10mm water transfer hole which is only some 6mm away.
I'd be interested to have the benefit of experience from fellow enthusiasts advising what if anything works as far as a viable repair goes and what doesn't.
I've prepared two drawings of the coordinates using the DRO on a mill. One of the drawings was produced from an early cylinder head and a second from an aluminium head produced by David Dye. The maximum variation is about 0.012" but there is sure a lot of clearance on the holes - 8.6mm holes for 5/16" bolts
Does anyone have a drawing showing the original cylinder stud layout?
Thanks
Jim Runciman
Perth Australia
The majority of these are cracked between the centre stud tapped hole and the 10mm water transfer hole which is only some 6mm away.
I'd be interested to have the benefit of experience from fellow enthusiasts advising what if anything works as far as a viable repair goes and what doesn't.
I've prepared two drawings of the coordinates using the DRO on a mill. One of the drawings was produced from an early cylinder head and a second from an aluminium head produced by David Dye. The maximum variation is about 0.012" but there is sure a lot of clearance on the holes - 8.6mm holes for 5/16" bolts
Does anyone have a drawing showing the original cylinder stud layout?
Thanks
Jim Runciman
Perth Australia