there are simply some thing that U should not do yourself

I grinded the valves with coarse grout and rechecked the compression. the compression went up to140 from 70, except on #1 and #3, which stayed low(110). Next I resurfaced the heads, regrinded the valves again and replaced the head-gaskets, now I am getting lower pressures than before resurfacing. Rechecked the compression with oil in cylinders but did not improve noticeable:confused: Could it be that I did not use fine grout?

PLEASE HELP




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my latest pressure readings are piston#1-145,3-130,5-130,2-130,4-140 and 6-130. any comments on the results?

can you explain the reason for such comment? Intead of providing assistance

take the head to a machine shop let them pressure check it