As title says can anyone tell me the correct torque setting for the cylinder head bolts, its a 1275, reading the manual i get either 40 or 46 lb foot, which is what i have set them at but i am getting leaks all over so i can only presume that is the wrong setting or my head is seriously warped....please someone tell me i am not tightening them enough
right for the sake of arguments i torqued it up to 50lbs and started her up and i am getting bubbles appearing under the head, so it would appear to my un technical brain that there is something wrong there and it cant be the gasket cos its a payen one and brand new, so can i liberally apply a touch of instant gasket all around to see me right until i can sort a new head/engine or i have another head that looks decidedly dodgy now i have just cleaned it up(a couple of score marks as if someone scraped a bit too hard to get the last gasket off) what are my options considering i am supposed to be doing the blackpool run in a few weeks time and i dont have the money to fix it properly????
In answer to another post on here(minis arent they great) no they are rhubarbin not
no you can not just apply some instant gasket to see you though.
take the head off and place a steel rule across it and look for gaps that will tell you if the heads screwed. also check the block while you are there.
head skimming doesnt cost that much, so so long as its not royally buggered you can get away with that.
also next time make sure both faces are completely clean of any gasket at all, and torque down as per the haynes manual, in the correct order, firstly to 40NM then 68NM (iirc but please check that to make sure)
Over tightening will actually make matters worse, itll compress the fire rings round the cylinders too far and you'll lose seal. Losing compression making engine run like a bag of spanners. Theres only one torque thats acceptable, thats the one specified in the book. USE IT!!
tightened it up to 85 and it finally stopped blowing bubbles at me.......now i know this probably isnt good but i have another car/engine in the pipeline so if this lasts me a week or so then i will be happy....as for compression I am running 160 all the way down i checked them earlier:)