took the head of today

Carlb

Carlb

New Member
i was running 1.2 at the time been like it for about 12 months and now this happened :oops: :(

i take it it was under fueling?
 
A

azboy

New Member
ive got a set of standard pistons in perfect condition if ur interested m8 only took them out to replace them with forged ones nothing at all wrong with them.
 
S

sypher

New Member
doesn't look like under fuelling as no det' evident on piston crowns, just looks like high cylinder pressures / physical fracture have broke the weak part of the crown away.

Are the ring lands under the crown also cracked / broke away?

Stu..
 
Carlb

Carlb

New Member
well thats as far as i got today but i will check tomorow and put some pics up also there is no obvious damage to the head

thanks azboy but i will be going forged myself.
 
Fast Guy

Fast Guy

Moderators
Staff member
Has it fractured or melted? Can't quite tell from that picture.
If it was a fracture, I'd have expected to see alot more damage as the bit rattled around the cylinder and then took the turbo out on it's way through :shock:



(I took the head off my monty to do the gasket once and found a piston melted like the damage above, 2 of the others were shagged too, but it ran fine :lol: )
 
Carlb

Carlb

New Member
it looks to be melted. i had a good look at the head and there is no damage to it or the piston (appart from the gap) i took the sump off aswell today and found that all the oil jets (the ones that spray the bottom of the piston i think)are broken not quite sure how this has happened? :? here is a picture not a very good one but it shows some of the bits :( :(

arent the oil jets like £40 a piece? :shock:
 
P

paulw

Guest
i found one of those oil jets in my sump when i started to take my engine apart the other week
 
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