German Astra G Cabriolet

[chribo]

Sorry i dont understand that: Doesn't it turn up at all?

The engine will not start. It just sometimes missfires.

 

[chribo]

Today I found the error. The error was so stupid that I wouldn´t talk about it.
The engine was running for about 5 minutes. Then I found a coolant leak. The cylinder head has a crack between spark plug and water channel.
For me, everything seems to go really wrong. But head up a new cylinder head has been organized and will be installed until next week.

Chris

 

[z22se-fan]

What happened? Did you tighten the spark plug too much? Don't worry, you'll get it right...

 

[chribo]

No i dont think so. It is a well knowen Problem that there are cracks around the spark plug from the 4th zylinder. I orderd a "new" used one. I hope that the exchange will be done at the weekend.

Heare some Pictures of my todays work:

 

[chribo]

The new cylinder head is ready to fit

cleand it up today and thats the result:

 

[Sjdickso]

Bet your glad you have got your new head, what manifold is that?

 

[chribo]

Yes i am!
Thats an Friedrich Motorsport Manifold.

Today the engine is running!! Im so happy!
Tomorrow ill do some little things to finish the conversion. I hope it will be mid next week picked for the optimization

Chris

 

[Pisoiul Cel Rau]

The standard ecu map won't be able to support the conversion. You would need a SC base map.

And with this map? how many HP?

 

[chribo]

My tuner says that he will later be 280-300 HP

Today I destroyed my second cylinder head. Still, we unfortunately do not know why.
We suspect that either there is an installation error or the engine is running too lean and therefore, has gotten too much pressure so it broke again.

My Tuner sad that it will

 

[Sjdickso]

Has the second one cracked on port 4 again?

 

[chribo]

Yup exaxtly the same point

 

[Matt]

Yup exaxtly the same point

That's quite worrying!

 

[z22se-fan]

This sucks... Did you already have the ECU remapped?

 

[Matt]

Could they be over tightening the spark plugs causing the head to crack?

 

[chribo]

Hmm good question

I think thats the Point. Im not shure but there are not many other good answers...

 

[z22se-fan]

Chribo, did you solve the problem?

 

[chribo]

I hope so. I bought a Z20NET Zylinderhead

I fitted it today. Engine is running but only a little test without cooling wather I think im done tomorrow.

Chris

 

[z22se-fan]

Did you find the problem?

 

[Matt]

I hope so. I bought a Z20NET Zylinderhead

I fitted it today. Engine is running but only a little test without cooling wather I think im done tomorrow.

Chris

Let's hope that is the last problem then

 

[chribo]

I hope so

Some pics from yesterday: