some of you will of read my other thread regarding my focus and oiling up number 4 plug, well the engine is out and i removed number 4 rod and piston to have a look.

no damage to any of the rings at all, there is a few pit marks on the piston above the top ring



surely that in the picture isnt bad enough to of been causing my problem and the amount of oil ive been using lately?

If it is i presume ill need new pistons and rings?

 

Can't see anything wrong with that mate... I'd use it again imo

 

any damage to the bores ??? maybe one has gone oval ??

 

well now its out you may aswell build a fresh engine

at least you will know what you have is then right

just hope for you after all this its not a turbo problem

 

+1 that's the next inspection .

 

Score marks on the bore that'll allow oil past the ring?

It won't be the turbo, it wouldn't cause the problem you were having on the plug.

 

the hassle ive had off cr it wouldnt surprise me lol but ive been told time and time again it wouldnt only oil 1 cylinder if it was turbo.

 

i still think if it's been deting bad it would of ovaled the cylinder.
best of luck finding the problem as it's a nice car and they're good engines

 

Looks ok but that dont mean much I would be a little concerned about the pits as it would say some hard paticulates have got in , is the bore lipped at all ?

 

no lips on the bore but it does have some score marks? but there not deep although they are at the same place as the pit marks on the piston, but all 4 bores do have marks in the same place.

 

Doesn't take much depth in bored for oil to pass mate, think about how thin oil gets when its so hot and under pressure.

 

Tbh, is there no one localish that could come and look over/inspect everything for you as no offence but if you don't know what you're looking for things can often look 'ok'....you must be getting fed up with the car but everything's fixable you just need to know what actually needs doing and what's wrong instead of having to guess at everything
Hope it gets sorted as i love the car and is a great spec!!

 

If thats was the one with the dead plug. then thats where the bits went.

 

valve stem/guide?

 

yeah rob thats the one that had the dodgy plug.

just gonna take the botton end to the place that has the head and see what they say.

 

the marks on all the bores is normal as they are the thrust faces ,but as said you will need a host of things checked and mesured best of fortune with it !

 

Check the bores and pistons have not distorted.

Mark

 

hmmm all above and over my head lol ill just take it to a engine builder and get there opinion.

 

Did you get any where with the problem then?

 

its awaiting new rings coming and head is away as needs 8 exhaust valves.

 

How comes you need 8 exhaust valve?

 

Good luck with the rebuild mate

 

Guessing the bores and pistons are with in spec then?, were all 8 exh valves bent or just a couple and a full set was ordered as a precaution?.

Hope this solves your issues mate, just remember DON'T break the bastard for bits, when she is working its a fantastic all rounder!!!

 

Someone put 8 bananas in there

 

hope u get it sorted mate nice car

 

4 were bent 2 were pitted and wouldnt seat properly and other 2 were odd lol its been repaired before and just had 2 standard zetec valves fitted.

 

That's not nice Dicko

 

2 standard zetec valves fitted....fookin hell who would do thatI take focus rs valves are a lot dearer.

 

focus rs valves are Ł107 each lol so its safe to say they wont be going back in haha

got some ferrea race valves on order from matt lewis (well will have tomorrow)

 

Lol thats why who ever changes them last time put cheapy ones in.

Who much are they from Matt Lewis.You will have to get it running then sell it and get another old cossie lol.

 

you need to get a bore mic in to check it's shape, need to check ring gaps, piston looks like the skirts might have some wear? which could mean bores oval...hard to tell from pic, need to check piston to bore clearance also.

something has to be wrong with that cylinder in one way shape or form!

 

davey the place who have the engine etc said there was no compression in the oil ring on piston number 4?

 

who built this engine originally cos i am pretty sure it wont be ian howell as in your sig.

 

well if the oil ring wasn't sealing that could well be/probably is the issue!