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Headgasket trouble? 900 1997

Hi there,

I have removed the cylinder head and here is what I see:

1) First, spark plug #1 was wet, the others all good
2) Cylinder #1 is wet
3) I am pretty sure the water pump gasket is gone, but I am going to remove it, and let's see.

It seems to me that the coolant infiltrated in cylinder #1.

Now some pictures as you will likely see more than I do, I am building experience here :)



















Now have to start with the cleaning:

1) To clean up the pistons, at least the top part, shall I use a simple degreaser?

2) I guess I have to be very careful that any debris does not go between the pistons and the cylinders, to clean the cylinder #2 and #3 is likely more difficult as they are down.

3) I guess none of the various chemicals and/or debris should go into any of the holes around the cylinders, am I correct?

While I was there, I verified all the valves' clearance, all of them 0.35mm, not bad after 25 years!

Any observation that you have, is always very welcome!

Now, let me go to disassemble the water pump.

Thank you,
Alessandro






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