[Mk2] [Turbo] Head skimmed every time on HG change?

sidewaysmk2tubby · Post by **sidewaysmk2tubby** » Sat Mar 10, 2012 10:04 pm

Im replacing the HG and wondered if its imperitive to have the head skimmed. Previous gasket wasnt blown by the looks of it?

Also the valves show small amonts of light around the edges when fitted so do these have to be reseated aswell?

Its all like opening a can of worms, one thing after another...

Chris · Post by **Chris** » Sat Mar 10, 2012 10:13 pm

Costs £25 to have head skimmed.....Worth the risk of pulling it back down again? I know I wouldn't risk it.

sidewaysmk2tubby · Post by **sidewaysmk2tubby** » Sat Mar 10, 2012 10:23 pm

I thought it was going to cost more after i was charged £ 45 on my vectra a couple of years ago. Ok will def get it done before putting all back together.

Also bought some BGA head bolts, are these any good for going up too 300 bhp at the flywheel? Dont want to do all of this again for a loooong while

Chris · Post by **Chris** » Sat Mar 10, 2012 10:26 pm

Even at £45. Still not worth the risk

Stock head bolts will do 500 plus, so as long as they are as good as stock, then yes. Fit a Rev 3 gasket too.

sidewaysmk2tubby · Post by **sidewaysmk2tubby** » Sat Mar 10, 2012 11:01 pm

Thanks Chris, sorry to ask so much still fairly new too this.

Bought a 3 layer 1mm thick steel HG and gasket set of Ebay, im worried its going to be a s*#t quality though as all together was about 70 notes and had some rubbish cork gaskets for intake mani ect.

Should i get another from ano affiliate or major supplier?

dawesy · Post by **dawesy** » Sun Mar 11, 2012 12:47 pm

stock rev 3 ones are fine and can be used on rev1/2 but a couple of holes need drilling in it iirc.
cometic are another good MLS head gasket

Driftlimits Performance · Sun Mar 11, 2012 4:43 pm

skim and full rebuild everytime. You have to do valve seals etc. Many places will do it for around £150.

greeny · Post by **greeny** » Mon Mar 12, 2012 2:03 pm

IMO, don't skim the head if it measures out fine/flat.

I don't see the point if it's flat already.

Peter Gidden · Post by **Peter Gidden** » Mon Mar 12, 2012 2:07 pm

greeny wrote:IMO, don't skim the head if it measures out fine/flat.

I don't see the point if it's flat already.

Agreed.

We have all heads surface ground in prep for new head gasket, but never skimmed.

sidewaysmk2tubby · Post by **sidewaysmk2tubby** » Tue Mar 13, 2012 9:31 pm

Ok ill get the surface checked to see if its flat and true all over.
Having trouble finding a place to do this and the valve reseating in my area though.

Starting to wish I got a slightly newer revision with mods done already but that would take away the fun and big learning curve about turbo engines.

www.imoc.co.uk

[Mk2] [Turbo] Head skimmed every time on HG change?

[Mk2] [Turbo] Head skimmed every time on HG change?

Re: [Mk2] [Turbo] Head skimmed every time on HG change?

Re: [Mk2] [Turbo] Head skimmed every time on HG change?

Re: [Mk2] [Turbo] Head skimmed every time on HG change?

Re: [Mk2] [Turbo] Head skimmed every time on HG change?

Re: [Mk2] [Turbo] Head skimmed every time on HG change?

Re: [Mk2] [Turbo] Head skimmed every time on HG change?

Re: [Mk2] [Turbo] Head skimmed every time on HG change?

Re: [Mk2] [Turbo] Head skimmed every time on HG change?

Re: [Mk2] [Turbo] Head skimmed every time on HG change?