What to do next? - Page 5

mattie007 · 20-09-12, 10:03 AM

Ok, thanks for the offer. Just to clarify, if we are talking about the lower part of the engine that includes the crankshaft?
Can I ask why you stripped your car?

Nobrainer · 20-09-12, 10:12 AM

Ive taken the head off so you can see the pistons. Would include block and sump. Not sure what happened to the engine. It just stopped one day, possibly the top end. Pistons turn over ok with flywheel so dont think there is a problem with that part but im no mechanic. When i took the head off one of the pistons was 'wet' but dont know if that was relevent. There was no hgf as far as i can tell. Your welcome to come and have a look. I wasnt going to bother stripping it any further as i thought there would be limited interest.

ZS · 20-09-12, 10:43 AM

Quote:

Originally Posted by Nobrainer

Ive taken the head off so you can see the pistons. Would include block and sump. Not sure what happened to the engine. It just stopped one day, possibly the top end. Pistons turn over ok with flywheel so dont think there is a problem with that part but im no mechanic. When i took the head off one of the pistons was 'wet' but dont know if that was relevent. There was no hgf as far as i can tell. Your welcome to come and have a look. I wasnt going to bother stripping it any further as i thought there would be limited interest.

Have you turned the crank with the head off? (Please say no!

) a wet piston would indicate the head gasket had failed... or the inlet manifold gasket had failed...

Nobrainer · 20-09-12, 12:59 PM

Er yeah. Why?

ZS · 20-09-12, 01:20 PM

Quote:

Originally Posted by Nobrainer

Er yeah. Why?

As I understand it....

Rotating the crank without the head (and not locking the liners) causes the seal around the liners to be disturbed and you then have to remove them, re-seal them and refit them.

Just slightly more work when putting it back together... (Without the seal oil and water can mix giving HGF like symptoms)

Last time I went that far into rebuilding a K Series engine was when the pistons were smashed and I replaced the liners as well... full overhaul

Nobrainer · 20-09-12, 09:42 PM

Well i didnt know that and i was interested to try and see what had gone wrong so i turned it over on the flywheel. They all went up and down pretty easy :-) A blown head gasket wouldnt have stopped the car the way it did and there was no mayo etc, garage spent a couple of hours checking it out, got it started with a LOT of smoke but wasnt sure what the problem really was without stripping it.