Blown Gasket :-(

[Noddle]

Hi,

 

I was doing some 3rd gear pulls, tuning my MS II system, and this is what happened, 7K, 15psi

 

Originally I though it was a manifold gaskets, but once I got it pulled down, I saw the head gasket hanging out the side of the block,

 

But I've had some fun with it,

 

N/A L24, dished piston, N47 head

440cc injector

intercooled

EDIS,

 

Nigel

[Noddle]

The weather cleared up for a few hours today, so I had a chance to pull it down and have a look,

 

It looks like it been detonating for a while, the AFR is pretty good, but I assume my timing is way to high.

 

at least it's giving me a chance to fit my EGT

 

Nigel

[slownrusty]

Nigel - Why were your pulling your so high (7,000 rpm), do you have a cam in your car? Also if your AFRs were fine why would it be detonating...confused. Your MS can pull

timing?

 

Yasin

[Noddle]

Nigel - Why were your pulling your so high (7,000 rpm), do you have a cam in your car? Also if your AFRs were fine why would it be detonating...confused. Your MS can pull

timing?

 

Yasin

 

Hi

here's a picture of the log at the time I blew my head gasket,the second peak is where it let go

 

And my timing table.

 

Nigel

[Noddle]

Hi,

 

It's up and running now, but after looking at my spark table and seeing high degrees at low RPM, I decides to make some changes,

 

this is my new table, any comments are welcome,

 

at some point I will need to go to a dyno to have it done professionally

 

Nigel