Splined bolt heads, in head of engine?

KICKER · Dec 27, 2013

My MC22 engine is pretty fubar'd at the moment, as I suspect one of the exhaust valves on the 4th cylinder gave up on life. Oddly enough, the engine still ran but with a bunch of top end noise. Anyway, while I wait around for an MC22 engine to crop up (haven't called any wreckers yet) I thought I'd inspect the damage and tally up the costs of an engine refurb.

The problem currently is the cam gear train and a bunch of bolts inside the head area have splined heads. Does anyone know where this socket would be available from?

KICKER · Dec 27, 2013

Actually... I think I answered my own question already. Hopefully Bunnings has the right sockets, if not my nearest Kincrome place will!

dazz245 · Dec 27, 2013

It's just a 12 point socket. Make sure you get a 1/4' drive or a skinny 3/8' because it be a tight fit.

smiley_666 · Dec 27, 2013

what do the look like? Just a 12 sided bolt head

(double hex)
or something like this

(external torx)

Bunnings will have a socket to fit either.

Aduro · Dec 27, 2013

You need an 8mm 12 point socket

aky141 · Dec 27, 2013

it's not a reverse torx, has more points

Callum Mc · Dec 30, 2013

What aduro said, it's just a standard 12 point socket

sam.ye · Feb 11, 2014

yeah its a 8mm dodecogon. i followed the manual at first and got a 7mm. such a pain in the ass. what about the two attachment bolts under the cam gears? anyone have any tips on how to remove that? also, something hilarious happened with those two bolts. yesterday, i tried a 9mm in there and it fits, but today only a 10mm fits. i'm so confused about that

Splined bolt heads, in head of engine?

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