Adam A’s Focus ST170: knocking engine noise

Well, after Adam asked me to have a look at the ‘funny noise’ coming from the engine, I said that I suspected it had spun a big end bearing, probably on number 4 cylinder…

So – was I right?

First job… Engine out!

http://img.photobucket.com/albums/v208/STslayer/IMG_0118.jpg

On a stand:

http://img.photobucket.com/albums/v208/STslayer/IMG_0120.jpg

Sump bolts undone:

http://img.photobucket.com/albums/v208/STslayer/IMG_0123.jpg

Sump off – and full of bearing!

http://img.photobucket.com/albums/v208/STslayer/IMG_0124.jpg

As was the oil pickup:

http://img.photobucket.com/albums/v208/STslayer/IMG_0127.jpg

Then it was off with the intermediate section and time to undo the rod bolts:

http://img.photobucket.com/albums/v208/STslayer/IMG_0128.jpg

As suspected – number 4 was the culprit!

http://img.photobucket.com/albums/v208/STslayer/IMG_0129.jpg

Which when picked out…

http://img.photobucket.com/albums/v208/STslayer/IMG_0131.jpg

http://img.photobucket.com/albums/v208/STslayer/IMG_0130.jpg

I suspect that at some point oil surge has occurred and that air has entered the oil pump and ended up at number 4 big end causing the bearing to make contact with the crank and spin.

I might be proved wrong when I strip the old engine, could have been a blocked oil gallery…

We’ll see!

Posted in Adam A's ST170, Project Cars | Tagged , , , | Leave a comment
Page 25 of 25« First...2122232425