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Azu 1960
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Punky
Dropped


Joined: 18 Jun 2007
Posts: 361
Location: Netherlands

PostPosted: Mon Aug 16, 2010 8:28 am    Post subject: Reply with quote

Nice pics and work Olli. Like your engine work and the patina on the enginebay.
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Olli
Soviet-Finn Photoshoper


Joined: 25 May 2007
Posts: 2146
Location: Soviet-Finland

PostPosted: Mon Aug 16, 2010 10:45 am    Post subject: Reply with quote

Etienne wrote:
Is it time now to loose the truck mirrors ??? Very Happy


But it is Truck Wink Yes, I would like to get rid of them. But I used to have
one Azu (super) without mirrors, and I can tell that it was nightmare in
daily use. As I use this car 15000km in year, I'm still hesitating to take
them off Neutral

-Olli
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Punky
Dropped


Joined: 18 Jun 2007
Posts: 361
Location: Netherlands

PostPosted: Mon Aug 16, 2010 7:12 pm    Post subject: Reply with quote

Mirrors are a little big to big. But on the otherhand, they give caracter to this car. Rolling Eyes
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Olli
Soviet-Finn Photoshoper


Joined: 25 May 2007
Posts: 2146
Location: Soviet-Finland

PostPosted: Mon Aug 16, 2010 9:35 pm    Post subject: Reply with quote

Hoi! Got heads ported today!

Near the valve guides ports are almost twice as big as they used to be!

















-Olli
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Olli
Soviet-Finn Photoshoper


Joined: 25 May 2007
Posts: 2146
Location: Soviet-Finland

PostPosted: Tue Aug 17, 2010 3:02 pm    Post subject: Reply with quote

Valves are ready!







-Olli
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Etienne
Hoodrider


Joined: 25 May 2007
Posts: 2829

PostPosted: Tue Aug 17, 2010 6:10 pm    Post subject: Reply with quote

Sweet
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Olli
Soviet-Finn Photoshoper


Joined: 25 May 2007
Posts: 2146
Location: Soviet-Finland

PostPosted: Tue Aug 17, 2010 9:16 pm    Post subject: Reply with quote

Valve springs. Hmm.. orginals were really soft. With my friend we put
one head together just with bare hands! So I have to do something.
I took springs off from old 2cv6 head (later one? has just one spring/valve).
I combined inner spring from 12hp and outer from 2cv6, now it seem
to be strong enough. I also tried to use just 2cv6 springs but because bottom
of inner spring is higher in old head it became too strong.



-Olli
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Olli
Soviet-Finn Photoshoper


Joined: 25 May 2007
Posts: 2146
Location: Soviet-Finland

PostPosted: Wed Aug 18, 2010 8:58 pm    Post subject: Reply with quote

Today worked with rocker arms.

Slightly lighten and polished them.

Start point,








-Olli
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Neil
Dropped


Joined: 03 Jul 2007
Posts: 285
Location: Cornwall UK

PostPosted: Wed Aug 18, 2010 9:03 pm    Post subject: Reply with quote

wow! Shocked
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silc
Dropped


Joined: 31 Aug 2008
Posts: 324
Location: Montpellier

PostPosted: Wed Aug 18, 2010 9:12 pm    Post subject: Reply with quote

Amazing result Olli!
What kind of tool and product are you using to get his result?

-Silc
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Olli
Soviet-Finn Photoshoper


Joined: 25 May 2007
Posts: 2146
Location: Soviet-Finland

PostPosted: Wed Aug 18, 2010 9:37 pm    Post subject: Reply with quote

Thanks!

First I made rough shapes with flap disk on angle grinder. Then I continue
with this:


Bench grinder which has smooth sandpaper belt and in other end cotton
wheel for final polishing. That white piece on top of grinder is polishing wax.

-Olli
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motomotie
Dropped


Joined: 29 Jun 2009
Posts: 207
Location: hengelo NL

PostPosted: Wed Aug 18, 2010 10:27 pm    Post subject: Reply with quote

now you need rocker cover's whith glass in it!

they do that a lot by moto guzzy.
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dyanut
Dropped


Joined: 05 Aug 2007
Posts: 177
Location: North Yorkshire

PostPosted: Thu Aug 19, 2010 12:56 am    Post subject: Reply with quote

Brilliant stuff, Olli.
Have you considered increasing the compression ratio, by shortening the barrels slightly?
As far as I can remember, those engines were 7.5:1 or even less, so increasing the C.R. to around 8.5:1 would give another boost in power... Wink

ken
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silc
Dropped


Joined: 31 Aug 2008
Posts: 324
Location: Montpellier

PostPosted: Thu Aug 19, 2010 9:46 am    Post subject: Reply with quote

Actually for 100 you can find a set of piston from "perfect Circle" with a ratio of 9:1.
This is what I put on my engine can you can feel the difference.

- Silc
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Olli
Soviet-Finn Photoshoper


Joined: 25 May 2007
Posts: 2146
Location: Soviet-Finland

PostPosted: Thu Aug 19, 2010 10:48 am    Post subject: Reply with quote

Yeah, you can sure find those for 2cv6, but how is with old 425cc?
Also I can go machine my cylinders to my friends place at free.
Does anyone know how much is example this 7,5:1 in bars? My
engine has only 6bar in bolth sides, and it does not mess oil so piston
rings does not leak so much.

-Olli
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