drilling a head for 11 studs at home?
Turbo Mini Forums

finally got my head today, got it home and started painting it up and realised that it hasn't been feckin drilled for 11 studs, my blocks already drilled and through into the water gallery on number 1 side so i've got to drill the head myself now and fit the stud.

Is it gonna be possible to do it with a cheapo nutool pillar drill as thats all i've got access to, and what size drill will i need for it?

Any advice appreciated, to say i'm slightly cunted off is an understatement after all the hard graft this week.

12.5mm drill bit springs to mind. Give me a few mins and I'll wander out to the garage and measure.

When I drilled mine I turned the head upside down and marked where to drill using a old gasket, however my head was stripped, where I'm guessing yours is still assembled.

Use a head gasket as a template,the holes should be quite a bit bigger than the studs,look at the size of the outer holes on a 9 stud head

Metro turbo weekend driver,Mini turbo in the making again!

start off with say a 4mm pilot drill then to say.... a 8mm and so on ....

take your time with the pilot drill and keep bring it out to get rid of the swarf especially if its a short drill

if not it could snap off half way through been bogged with swarf

hope this helps

Oh! budd, center pop the head first

Edited by BENROSS on 30th Dec, 2006.

I lied it's 11mm

yup, just been out measuring, my 10mm drill bit is a bit too small so i was going to use 11mm.

cheers for the advice chaps, going up to me dads shop first thing in the morning to use his pillar drill, i just hope the amazingly high quality of nutool stuff will last long enough to drill 2 holes...

should be fine .... might have fun getting the holes perpendicular to the gasket face .....

Best of luck mate...

Every day is a school day ...........

How fast and how expensive ...... the same question...

My old man has a proper large pillar drill he'd probably let you use for 10 mins, he is based near Redditch.

cheers for the offer Tom, but Karl's stepped in to lend a hand again. He's going to run it into his work in the morning and drill it for me. i just didn't fancy ruining a few hundred quids worth of head with a nutool drill.

Big thanks to doodmeister yet again!

Glad you got it sorted

Every day is a school day ...........

How fast and how expensive ...... the same question...