Onemanshow /Astra Z20LET .

[Onemanshow]

http://youtu.be/kdj5FLc4A68

 

[Averell]

Ok,

rebuilt is finished - great job.
Turbocharger wasn't damaged?

 

[Acki]

3rd piston under the spark plug #3
If i can only knew what have cause this , i would be a very happy guy .

What fuel supply you have? Fuel pump, catch tank and power supply?
It looks like a standard lean running damage.
Did you checked the fuel trim and O2 sensor in the ECU?
EGT and wide band you don't know? (at the damage)

 

[Onemanshow]

Acki , thanks for your feedback

I am running Wallbroo and Pierburg + catchtank , uprated 12V power supply cables .

I have checked with Stephan and the bottom line is all this hapended because of Fuel .

My car stayed in Germany for a few days ( adjustments before remap) and of course i had Octane 98 when getting over there .
The car set up took a few days and the car had to be refill two or three times ( Octane 102 ) .
The spark plugs were also replaced and the NGK Irridium PFR6B were fitted before the dyno .

Mistake #1 was not having refill the car with 98 ( what is use here in France )
Mistake #2 the spark plugs were maybe not cold enough under the heat that day ( fuel quality lower than the 102 , long race at high speed the engine cylinder maybe got hotter due to the cylinder bore i was running 87.00mm , .... the spark plug electrode over heated and melted or broke ...

These are the only valid explanations i have at this time , maybe much colder spark plugs could have made me avoid this , but ... what can i do now

I learned my lesson , very expensive one .

 

[Onemanshow]

Hi

Another look at the pistons , after a quick hand wash .

 

[Onemanshow]

 

[Onemanshow]

Got the rest of the parts cleaned up , wrapped up , some oiled

I need to have the cylinder head fully checked just in case , all the sensor and parts have been removed and stored .

 

[Onemanshow]

 

[Onemanshow]

 

[Onemanshow]

 

[Onemanshow]

I am hoping the rod axle will be fine , i will have it professionally checked and all that ( balanced , rotated ... ) to see if they are still fine ( the one from cylinder #3)
I have removed the pistons ad struggled to get that one out , as you can see the axle is damaged

Bielles enlevées , mais pour le Piston percé , j en ai un peu bavé et j ai peur que l 'axe ne soit abimé , je verrai lors du controle des marques ...

 

[sebi114]

ist das normal das die kolben ,,so ausgewaschen" aussehen?

 

[Onemanshow]

ist das normal das die kolben ,,so ausgewaschen" aussehen?

Ich reinigte gewaschen die Kolben oben auf dem beschädigten überprüfen und sehen, ob es wurde cliking Marken oder Punkte=


I cleaned washed the pistons top to check on the damaged and see if there was cliking marks or points

 

[Onemanshow]

More Ugly look with the semi sliks tyres .

Semi Slicks Federal

 

[Acki]

The damaged small end bush is only at the rod where the piston is melted?

 

[Corsa-A-LET]

was isn das fürn süßer Nagellack?

 

[Onemanshow]

The damaged on the rods happened when i forced the removal of the piston axle , it is only on surface and i think can be removed/cleanded .

Der beschädigte auf den Stangen passiert, wenn ich die Entfernung der Kolbenachse zwang, ist es nur an der Oberfläche, und ich denke kann entfernt / cleanded werden.

 

[Onemanshow]

I drove a few kms today ( about 200kms) .

The Black AStra OPC is the OPC 160 but Z20LET swap , soon to be remapped (Stage 4,5)
The Vectra OPC is stock for now and will be remapped Soon as well .

 

[Onemanshow]

 

[Onemanshow]