Surely cavitation is only likely in the pump? Why would it happen in the head cooling channels?
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Originally posted by shokenore View PostInteresting question, a generator engineer friend of mine has mentioned cavitation causing some failures in some of his engines,but I can't remember if it was cylinder heads or cylinder bores.He said on his older engines he liked to run demin water/glycol only,and with more glycol than reqd.ie if it needed 50/50 he would run 30 demin water 70 glycol.
Isn't cavitation usually a pitting, or erosion found on items such as maritime propellers, or the vanes on water pumps (something to do with the dynamics of the "swirl" characteristics) ? .....I spoke to someone, some time ago, who suggested that a lot of "grey imports " got cracked heads due to the change in the quality of the fuel when they come here. our fuel being a higher octane, and producing higher combustion temperatures..........Maybe someone with more knowlege than I, could comment................" Time wounds all heels ".
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Originally posted by Apache View PostSurely cavitation is only likely in the pump? Why would it happen in the head cooling channels?
But I think demin water would still be better than malvern spring water.Eat.Sleep.Surf.Repeat.
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Originally posted by MWS View PostI spoke to someone, some time ago, who suggested that a lot of "grey imports " got cracked heads due to the change in the quality of the fuel when they come here. our fuel being a higher octane, and producing higher combustion temperatures..........Maybe someone with more knowlege than I, could comment................
Incidently,my head suffured virtually an identical crack,IE between the valve and swirl chamber,but pot 3 IIRC.
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