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Main : Mechanical : Engine Worked Head 1a

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Worked Head 1a
Worked Head 1aPopular
SubmittermatbighatMore Photos from matbighat   Last Update2005/7/5 7:21    Tell a friendTell a friend
Hits3414  Comments9    0.00 (0 votes)0.00 (0 votes)
Wowser

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The comments are owned by the poster. We aren't responsible for their content.

Poster Thread
Dodgeman
Posted: 2005/7/5 13:32  Updated: 2005/7/5 13:32
No life (a.k.a. DattoMaster)
Joined: 2003/6/27
From: Southern Tablelands N.S.W. Australia
Posts: 8287
 Re: Worked Head 1a
The valve guides are a bit short, but it should flow well.

Poster Thread
MLS
Posted: 2005/7/5 13:45  Updated: 2005/7/5 13:45
Just can't stay away
Joined: 2004/12/10
From: Melbourne
Posts: 145
 Re: Worked Head 1a
Actually I think I can see one problem with the porting job, the inlet ports have been polished too much.
It is best to leave a sllight roughness in the inlet port as it creates an "air lining" on the port walls that reduces friction when the air/fuel mix flows through it.

Other than that, good job!!

Poster Thread
kululadotgroen
Posted: 2007/9/27 7:46  Updated: 2007/9/27 7:46
No life (a.k.a. DattoMaster)
Joined: 2006/7/12
From: Cape Town ZA
Posts: 1054
 Re: Worked Head 1a
Quote:
Actually I think I can see one problem with the porting job, the inlet ports have been polished too much.


Agreed, my dad used to polish it to a shine, and then he would use a drill with a piece of round bar split down the middle. In this groove he would put a very rough piece of sand paper. He would then spin the drill up in short bursts, while pushing this "flap wheel" down the port, creating roughness, and almost grooves in the port walls. He said this created the air lining, but also introduced swirl in the mixture, so that you would get a more even spread of the mixture in the chamber...

Poster Thread
1200GXman
Posted: 2007/9/27 8:01  Updated: 2007/9/27 8:01
No life (a.k.a. DattoMaster)
Joined: 2003/11/28
From: South Africa, Bloemfontein
Posts: 1469
 Re: Worked Head 1a
@kulula
Damn good idea that your dad used.I will keep that sand paper trick in mind for when I plan to do something to my cylinder head.
Swirl is always good on the intake.

Poster Thread
rally1200
Posted: 2005/7/5 13:45  Updated: 2005/7/5 13:45
Home away from home
Joined: 2003/10/3
From: Perth
Posts: 287
 Re: Worked Head 1a
Nice manafold gasket. Where can i get one.

Poster Thread
matbighat
Posted: 2005/7/5 21:27  Updated: 2005/7/5 21:27
No life (a.k.a. DattoMaster)
Joined: 2001/1/30
From: California
Posts: 2973
 Re: Worked Head 1a
I believe it's a standard GX gasket with the intake sealing rings removed.

Poster Thread
2332owner
Posted: 2007/9/27 1:57  Updated: 2007/9/27 1:57
No life (a.k.a. DattoMaster)
Joined: 2003/5/5
From: Okinawa, Japan
Posts: 1292
 Re: Worked Head 1a
Looks like the Tomei gasket. Sunny_coupe110 sells 'em.


Poster Thread
benny
Posted: 2007/9/27 2:11  Updated: 2007/9/27 2:11
No life (a.k.a. DattoMaster)
Joined: 2002/6/14
From: Sydney
Posts: 2598
 Re: Worked Head 1a
Nice one Matt...

Poster Thread
1200GXman
Posted: 2007/9/27 6:46  Updated: 2007/9/27 6:46
No life (a.k.a. DattoMaster)
Joined: 2003/11/28
From: South Africa, Bloemfontein
Posts: 1469
 Re: Worked Head 1a
Is this a GX head?
Please give us the specs what you did and are planning to do further down the road.
Valve sizes,the cc of each chamber,etc.