Dave Henshall

does the cooling water just run though a jacketed area of teh body of teh turbo , or does it acually come into contact with the shaft..?

only reason i ask is cos since my turbo oil selas have gone it seem to be using a quite alot of water also, ..?

The DIVA

iTrader: (3)

1,Yes and 2,No....

Prob done a headgasket mate......

Dave Henshall

that would maybe tie up with the slight miss on no 2 when it first starts then,

fook mei - its only just had a head rebuild inc skim and new cometic gasket 3K ago

the turbo oil seals are defo gone though, may have to live with teh head leaking a littl ewater, it doesnt over heat, and there is no oil/water mixing... yet

The DIVA

iTrader: (3)

Just be careful it doesn`t erode the head away at the point it is leaking into the combustion chamber mate........Could be an expensive fix later if you leave it .......

Dave Henshall

could this be due to the skim in the first place. the machine shop did say thjey had to re seat the valve seats back in a bit due to it be being on its last legs (ie no more skimm sleft in it for a turbo spec)

here it is before/after teh skim

The DIVA

iTrader: (3)

Mmmmmmmmm........They have had to skim a lot off it......Maybe the raise in compression has put the new gasket under extra strain...

If they have had to re-cut the seats thats a fairly big skim...

Dave Henshall

i think he siad that they had to re cut the seat not due to the smmount they took off but due to the fact that the valves would touch the piston tops otherwise, the head must have been skimmed umpteen times in the past i reckon.

The DIVA

iTrader: (3)

May be best to just cut your losses mate and get a decent s/h head.....

I think Pete H had one for sale which measured 138.8 mm...

Damo V

If HG gone, done drive it you will £cuk the block and head... IMO you cant have another cometic on there... Get a block test done..

Dave Henshall

how do u get a block test done, and what is involved - i checked it for flat while it was off and was ok...

Damo V

Any local garage can do a Block/cylinder leakage test.. basically it involves a fluid which chngaes colour when CO is present in the coolant system...

Dave Henshall

ah , getcha, or a co probe in the header tank does the same thing

Dave Henshall

bad news guys,

since doing the turbo, I was rather hoping for the seals to be buggered or have a crask in it - neither, but now its got new seals and bearings, it still smokes and is getting worse

damo, on your cometic what had failed, cos initially, mine was using just a smidge of water, now its a header tank every other day, and tehrer is quite a lot of blue smoke when its hot and it misses on no 2 every time u start it cos of water contamination. could it be just the gasket, or are we looking at at another head, what HG are u runnig now ?

Dave Henshall

could it be the head dya reckon duw to these holes being made bigger due to the skim?


the head before the skim (cleaned off)
are these water jacket ports already too elongated?




and after, again are these now too far opened up...?
anyone else got come skimmed head pics

Dave Henshall

bttt, gonn alook at whipping it off next wekend,, what do we reckon...?

Karl

possible cracked block.

Dave Henshall

anybody comment on teh pic of my head, is it aknow problem that too far skimmed leads to premature failure?

Damo V

Ive been offline for few days...

I ONLY wanted a WRC HG on my new rebuild I'm afraid... for close up pics of my head, after meltdown, see my resto thread mate... BUT I wasnt loosing ANY water... I was simply pressurising the coolant system, mainly on boost...

Nowhere near as extreme as yours Im afraid