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[chris ap]

now becoming a reoccuring problem but im refusing to let it beat me and die. ive had this miggy two and a half years and last feb the head gasket decided it had had enough of life and gave up. so head off and new gasket fitted and all was well apart from it now rattles on top when it gets warm ( valves or lifters?) all went well for a month then same again. so off again new gasket, bolts etc and rebuilt. once again quiet as a mouse when cold but after a couple of miles the rattle comes back. to celebrate its anniversary of 1st failure it has a major party and goes big time. pressurised water and burning oil like a greedy diesel resulting in localised fog on my driveway and sprayed oil from exhaust up the front of garage door. anyone got any idea why gaskets keep blowing and why this rattle has appeared. all bolts were torqued up to correct settings everytime it was fixed.... new head a better option???  :-/

[tunnie]

the first time the gasket went, did the engine over-heat? Have you had the head skimmed?

[chris ap]

didnt overheat as it went about quater of mile from home but i suspect it wasn't the first time it had happened cos 3 exhaust studs were missing when i first took it apart. had head checked for warping it appeared fine but now its gone again i think its time for a skim to make sure. its the rattling i cant quite get, either like you say overheated and warped a valve etc or other theory was oil was slowly getting starved to a lifter through a glob oy mayo in channels. might just go for a new head or engine. sick of takin it apart now

[Bionic]

Have you givan any thought to having a pressure leak test done using dye/crack detector. Its worth the cost if the leak/blow is hard to find.
Did a motor once and it was cylinder lining that had gone. Only the dye showed when it was stripped as a wavy line halfway down the bore. Up until then everyopne thought it was the head were warped.
Thing is a crack can develop in the waterways in the heads too out of sight!
Sorry, but its not an easy quick repair answer. Its just the best advice I can give without knowing a lot more.
Final word - do not under any circumstances use a 'cracked block sealer' fluid, you will regret it because it will block some of the small waterways and cannot be cleaned out afterwards.
Hope you sort it but until then,
GudLuk

[Kevin Wood]

Burning oil is not a common head gasket symptom. There is only one pressurised oilway through the head gasket and it is well away from the bores. I would be starting to suspect the head might be porous, TBH. :-/ Could be failed valve stem seals, though.

Kevin