right basically heard a tapping noise few months ago, did not feel lose in power felt fine. but there was an annoying tapping. so i bought another head reconditioned its been skimmed, do i need a thicker head gasket? i dont know how much it got skimmed by etc, how would i measure it and what with?

and basically you cant get top end timing wrong can you if there aligned with the timing holes?? can you

il do my usual checks and make sure my bottom pulley is ok and make sure its TDC.

thanks people

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phase 3 Hatchback V reg 5Door GTi6

As Bas says, there are two cutouts at either end of the head where you have rough casting next to the gasket face of the head. If the gasket face has been skimmed level with the rough casting the head has reached maximum skim tolerance.

As for putting it back together, you will need to pin the cams and then fit the head with the cams pinned.
Be VERY careful when you fit the head that you don't contact an open valve against the top of the block as this will bend it. Also, make sure that once the head is fitted that you DO NOT rotate any cams independently of each other as the valves will tangle and also bend.

As for setting the timing of the engine, don't set it to TDC, the std bottom end setting is all pistons at half stroke, 1 and 4 on the way up. Make sure you can pin the bottom pulley and that the pulley woodruff key points to 9 o'clock if the pulley was a clock. If it doesn't then the timing hole in the pulley has slipped and will either need a new one or you can do it using the positioning of the woodruff key, but if you do this, ask on here first for further advice before you go down this route.

Hope this helps,

Stan.

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"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone

Yes, this is true. You could also fit the head with no cams and then fit them afterwards. A lot of people do it this way as well.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone

It matters

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need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

ok cool il have a look after work.

what would happen if it has not reached maximum skim and a thicker gasket is used? (i understand what you guys are saying just wondering what would happen)

really appreciate all the help =]

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phase 3 Hatchback V reg 5Door GTi6

My f**ked engine thread

See here, Post #85 from Welsh with some useful headgasket measurements and thickness

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Team: Moonstone GTI-6™
Team: Working air-con™

Pug

IIRC is more expensive than a standard one

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Red GTB1756 powered Fabia VRS daily driver,LBSC Gti6 eater........

Mac1 ZR R1 kit car build in progress.

Pug is cheaper than all unless you get a victor reinz with decent discount, no need for one of rich's expensive ones, you need to measure or ask how much was skimmed if you know its never been apart, going by the notch is not accurate enough.

Thicker gaskets are fibre, and tbh there is no issue at all using them as many dont give a decent enough surface finish to work well, fibre is more tolerant.

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

You do know how much has been skimmed...measure the height of the head. Standard head is 137mm high, minimum is 136.8mm +/- 0.05mm.

This way you will know for sure.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone

12 o'clock on the inlet, 3 o'clock on the exhaust. Cam cutouts.


Carl

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C.G.Cars of Leicester, Peugeot/Citroen/Renault specialist Tel: 01162 624498/07799 405184 WWW.CGCARSLEICESTER.CO.UK
36 narborough road south, Leicester LE3 2fn

MOT station now open, tests £35 with a free retest.
Recovery available with a recovery unit, for those not so local jobs

Also offer the loan of a free courtesy car 306 dturbo

As Kev says, don't rotate the cams round independently of each other, you will tangle valves!

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone

Large set of verniers?

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone

Not a problem.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone