Re: Cylinder head repair
Thanks for the quik reply! I was thinking of buying the helicoil kit from NAPA ($40.00) and doing myself. The only problem is removing and putting the cylinder back together. I know I need to get at least the head gasket. Is there anything special that I have to do to when I put the cylinder head back together?
hello,
have u ever drilled a big hole like a spark plug hole freehand. not too ez!! i would only use a mill. not even a drill press.
a mill. i know, i have done many helicoils, in fact i did one last weekend.
nothing i could do would get that 1/4 x 20 water plate bolt to come loose.
so i had a 3/8ths snub at the head once the water plate removed. carefull as i was... no deal. snub broke with ez-out. so i drilled then to 1/4x20 tap, but some of bolt still in there. too hard. only a mess resulted. grrr! so had to pop the head and chuck it up into my mill... oh my gosh... a 3/16th carbide bit was sitting already there in the R8 collet. what luck.
had snapped clean in two.

it would have taken acetylene to do it, i suppose. but i was out in the country... happen to have a mill there... but no helicoil so i made my own out of 3/8ths bolt end. turned out great, even though i only had a bottoming tap.

here, ck it out...
new 1/4x20 is just to right of right hand plug hole... shiny new ss bolthead. goes in perfectly with two fingers... smooth as can be, just like all the rest. and it IS on-center.
u prob can do it in a good drill press, but a mill does it ever, so much better. [subject to operator skill, of course]
also some tips:
http://www.xs11.com/tips/repair/repair27.shtml
good luck and regards. hope u show us the final product.
lakester
