MK2 Golf GTI Head Rebuild

[chrisfletcher]

Hello all,

I have a week of work now and want to rebuild the head on my motor.

Just need to know what parts would i need to buy?


Chris

[clipperjay]

what was wrong with the old one?

[The Mighty Elvi]

Well.. How hardcore do you want to go?

valves.
Valve springs.
oil stem steals.
volume matching.
tappets.
Smoothing the combustion chamber.
Porting & Polishing.
Compression test.
etc..

[chrisfletcher]

Gives me something to do

I was looking to do a port and polish and what ever is needed really.

Chris

[The Mighty Elvi]

Chris, If you are new to this, watch ALL the videos:

HERE



NB:  8v just had 8 fewer valves.

 

[chrisfletcher]

saw these a while back, that what makes me think i can do it :p

Just really wanted a parts list i can take to gsf and go... "oi, gives me these"

Chris

[The Mighty Elvi]

Gives me something to do

I was looking to do a port and polish and what ever is needed really.

Chris

Ah ok.

Well you want to port and polish the exhaust manifold and maybe the combustion chamber  (the shallow bowl where the valves rest)

And you want to roughen up the inlet manifold.  This may seem counter intuitive, but in fact you need the rough surface to aid the mixing of the fuel and air before it enters the cylinder.

The smooth surface of the exhaust manifold speeds the release of the exhaust gasses.

[chrisfletcher]

awsome cheers man, makes sense actually cause obviously turbulent air will make it mix SCIENCE!

[The Mighty Elvi]

As a must. Valve stem oil seals.

Valves, unless bent, can be cleaned up and reground.

Springs Should be ok.  Line them up and put a rule across the top.  If they're are all the same height, then their rates should be ok.

Tappets as well.

[chrisfletcher]

How do i go about the regrounding?