high oil pressure

[samcole]

My td04 glanza has started blowing oil out of the breather on the cam cover. Oil pressure if really high?

Any ideas?

Help!!!!

[5e colin]

worn engine and oil blow by :) or a stuck oil relieve valve ( in the sump )

[samcole]

What do you mean by oil blow by?

[5e colin]

i should of bean more clearly just ordinary blow by from worn piston rings this inturn spits out the oil

you also said high oil pressure this might be the relieve valve

[rwdrev]

broken ringlands!!

[samcole]

Oh ok thanks. Looks like I've got my work cut out then

[5e colin]

how much boost do you run ???

[rwdrev]

engine rebuild with some expensive forgies in it ;) mine blew oil everywhere, found out after i had drove 400 mile home 1 day, lol

[samcole]

Ring lands?

1 bar of boost

[5e colin]

they dont tend to break at a bar usually always around 1.2/1.3

[rwdrev]

mine broke up at a bar,

this is the problem, tho this is with the bits removed, they snap off the main body of the piston, then when you remove the piston from the block, you can just flick the broken bits out

[samcole]

Oh dear.would this cause the high oil pressure?

[Fozzie]

Yes - when the piston moves up in the cylinder and should be compressing the a/f mixture, pressure is escaping down the sides of the piston where the ringlands are damaged and increasing the pressure in the crankcase. Basically, the damaged ringlands are stopping the piston rings from sealing properly, it's a common problem with 4es.

[samcole]

Thanks for everyone's help. Was dreading a mojor problem but needed to hear other opinions be for I ripped her apart. Anyone got an idea of the easyest way to fix and what parts I will need. So I no weather it will be easier to get another motor

[5e colin]

mine broke up at a bar,

this is the problem, tho this is with the bits removed, they snap off the main body of the piston, then when you remove the piston from the block, you can just flick the broken bits out

dam mate you where really unlucky for it to snap at a bar

[rwdrev]

Yes - when the piston moves up in the cylinder and should be compressing the a/f mixture, pressure is escaping down the sides of the piston where the ringlands are damaged and increasing the pressure in the crankcase. Basically, the damaged ringlands are stopping the piston rings from sealing properly, it's a common problem with 4es.

this ^^

as these are old now and are all suffering from the same problems. alot of people (including myself) are turboing the 4efe (n/a engine) but these are only really a short term fix.

forging is an expensive route, but will cure the problems, if built correctly

[rwdrev]

dam mate you where really unlucky for it to snap at a bar

yeah, but i think it had a hard life, i heard later on from a boy who got a spin in it 2 owners ago and said it was rapid, then i gave it abit, and then went td04 at a bar, didnt go down too good, lol.

[samcole]

At least mines not the only one then haha

[AdamB]

I had ringland failure on No 2 cylinder running stock boost, chocolate pistons these

[WallaceGlanza]

I've got 2 pistons with exactly the same failure from both engines I've killed.