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Location:
Brisbane
Registered:
October 2002
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Re: if your in prison for 20 years this what you could do to 4ag
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Wed, 08 June 2005 09:25
 
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to be honest, there is nothing really special about that rebuild
he polished the valves, what a waste of time
all the sandblasting of manifold/pipes ect ect is just for cosmetic reasons, takes me less than 10 mins to do an entire 4AGE head
| Quote: |
they DID NOT like being ground. The first valve I offered up to the surface grinder in a six jaw chuck was ok for about 50% of the surface area. then when it was cleaning up more so it started to 'ring' and I reckon the head was about to jump off, I was lucky. Even with only 15mm sticking out the 6 jaw I reinforced the the gap between the seating face and the face of the chuck with plasticine. (common practice in a tool shop) this reduces the nymonics (sound vibration) and stops the valve wanting to ping off its stem when I take a cut! - could have been messy!! But with some careful machining here they are.
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maybe he should've given them a hit in that beadblaster of his, or on a wire bench grinder 
then lapping the valves in is not necessary if the valve/valve seat cut is done properly
and he doesnt even get the head vac tested to make sure there are no leaks 
btw, polishing of a head is not necessary {can be for some types of fuel}
all that effort and he didnt even use new pistons
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| | Subject | Poster | Date |
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if your in prison for 20 years this what you could do to 4ag
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kingmick | Sun, 05 June 2005 05:43 |
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Re: if your in prison for 20 years this what you could do to 4ag
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SEXY 16 | Sun, 05 June 2005 06:28 |
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Re: if your in prison for 20 years this what you could do to 4ag
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Beserker99 | Sun, 05 June 2005 06:35 |
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Re: if your in prison for 20 years this what you could do to 4ag
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Simon-AE86 | Sun, 05 June 2005 08:58 |
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Re: if your in prison for 20 years this what you could do to 4ag
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ke35 - 4AGZE | Sun, 05 June 2005 12:35 |
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Re: if your in prison for 20 years this what you could do to 4ag
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mc68 | Sun, 05 June 2005 14:58 |
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Re: if your in prison for 20 years this what you could do to 4ag
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GTZLevin | Mon, 06 June 2005 13:12 |
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Re: if your in prison for 20 years this what you could do to 4ag
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optionUP | Mon, 06 June 2005 15:25 |
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Re: if your in prison for 20 years this what you could do to 4ag
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kingmick | Mon, 06 June 2005 23:20 |
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Re: if your in prison for 20 years this what you could do to 4ag
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Merudo | Tue, 07 June 2005 01:04 |
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Re: if your in prison for 20 years this what you could do to 4ag
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Mr DOHC | Wed, 08 June 2005 09:25 |
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Re: if your in prison for 20 years this what you could do to 4ag
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kingmick | Wed, 08 June 2005 11:00 |
