I think I may have found the cause for my blown gasket. When I cleaned up the block surface, I found that there is a decent size gap between the sleeve and the block. I now recall that the machine shop that rebuilt the head for me 4 years ago also lent me plates to use for pressing the sleeves in. They recommended filing a slight chamfer on the block so that the sleeves would start easier. This is probably fine to do on just about any other motor, but not this one. As Pete noted, the gasket matches the underside of the head and not the sleeves, the cylinder gasses can get into this "v" caused by the chamfer and then work their way under the gasket until they break out into the cooling ports. So looks like I really shot myself in the foot on this one. :oops:
I have no way of getting the block into a machine shop to machine it down until the v groove is gone and even if I did it would probably require 50-100 thou to completely get it. I have no idea what this would do to the compression ratio.
Now my question is: is there anything I can use to fill that v groove? JB weld? Devcon? It is .010-.020 wide and .10-.05 deep.
Eventually I suppose I will learn to completely think through what someone recommends.
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Today's Featured Article - A Lifetime of David Brown - by Samuel Kennedy. I was born in 1950 and reared on my family’s 100 acre farm. It was a fairly typical Northern Ireland farm where the main enterprise was dairying but some pigs, poultry and sheep were also kept. Potatoes were grown for sale and oats were grown to be used for cattle and horse feeding. Up to about 1958 the dairy cows were fed hay with some turnips and after that grass silage was the main winter feed. That same year was the last in which flax was grown on the farm. Flax provided the fibre which w
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