Club G40 Forum

Technical => Engine and Transmission => Topic started by: vwmk3jon on June 18, 2011, 10:03:49 pm

Title: snapped a bolt!!
Post by: vwmk3jon on June 18, 2011, 10:03:49 pm
Snapped one of the bolts that bolds the camshaft down. Its snapped halfway down so should be easy to get hold of. Is this just a stud like the exhaust manifold or is it a drill out job?

Nearly bloody there too :(
Title: Re: snapped a bolt!!
Post by: dub-disaster on June 18, 2011, 10:59:22 pm
Think there studs get a hold of it and carfuly remove it.
Title: Re: snapped a bolt!!
Post by: Jezza-7 on June 19, 2011, 12:58:04 am
yeah there just studs.
Title: Re: snapped a bolt!!
Post by: vwmk3jon on June 19, 2011, 02:16:59 am
Thank jebus :) job for tomorrow.
Title: Re: snapped a bolt!!
Post by: DKnight on June 19, 2011, 02:58:14 am
haynes and torque wrench to buy next too ;)
Title: Re: snapped a bolt!!
Post by: vwmk3jon on June 19, 2011, 12:06:05 pm
Sorry, i'm still on spot the dog. I'll send them your way when im done ;)  ;D

Yeah, just wondering if me ole mans got a torque wrench hidden somewhere? He does have the worlds weirdest 14mm socket tho!

Title: Re: snapped a bolt!!
Post by: scotsjohn on June 19, 2011, 02:30:02 pm
Going to need a 0-10nm wrench John. I think these nuts go down to about 6nm.
Title: Re: snapped a bolt!!
Post by: Yoof on June 21, 2011, 09:28:32 pm
The studs are M7, so abit of a pain to get hold of, M7 helicoil kits are about £35 if you need one. Not the end of the world but a pain none the less.

Remember the nuts are torqued, then angle tighten.
Title: Re: snapped a bolt!!
Post by: Jezza-7 on June 21, 2011, 09:32:24 pm
i think i need this kit for my new head, where is best place to get them from?
Title: Re: snapped a bolt!!
Post by: Yoof on June 21, 2011, 09:51:51 pm
Local engineering supplies sorted me one, here's a pic of the buggers:

(http://www.poloperformanceparts.co.uk/images/gallery/VikBVH2.jpg)

Sods law means I only found out once the engine was fully built... ::)

Try to get the full helicoil kit, so you've got the coil insertion tool, and a little punch to snap the tang off at the end.
Title: Re: snapped a bolt!!
Post by: GAF2 on June 21, 2011, 10:30:21 pm
heli coils are ok but you better off with going to a cylinder head specilists with the cam cap and get them to put an "insert" in the are a solid tube threaded on both sides and fitted with small hand tool. Much better than helicoils.

cheers grant
Title: Re: snapped a bolt!!
Post by: vwmk3jon on June 28, 2011, 04:55:47 pm
The thing i found atad scary was the fact it was very easy indeed to get it out. Only needed 2secs with a pair of pliers and hey presto. Surely they must be abit tighter than that?