water in oil ???

[ross2009]

right checked it properly today and as for flatness it's pretty dam good cant get .002 under it so that's still pretty flat so now it's going for a pressure test in a way I'm hoping it is cracked as I'll know the problem but in the other way I don't want it to be cracked
but then what the hell is making it do it some thing more serious

[scjimbo]

One thing that just struck me as I was sitting on the bog. When you changed the gasket the first time was the water absolutely gopping? If so it could be the residual crap from inside the radiator coming through again. I had this with a landrover TD5 and it took frogging months for the oil to clean out of the system.

[ross2009]

there is no oil getting in the water the water is getting in the oil

[craigieeb]

It possibly sounds like a cracked water jacket...?
once its up to temp, the water pressure will be greater than the oil pressure, forcing the water through a crack into the oil way?

and that could either be in the head or.......


the bottom

[ross2009]

well yeah craig thats what it sounds like but the weird bit about it is that it wasnt doing it when i drove it home the water only got in after i put the new head gasket on i didnt even let it get up to temperature i couldnt leave it running with water in the oil would have knocked out the bottom end

[scjimbo]

there is no oil getting in the water the water is getting in the oil

Yeah course it was sorry mate

[ross2009]

the other thing i did aswell i ran it briefly with no rad there was water still in the block but not n the head and for a minute or so it was fine no water in the ol as soon as i put the rad on and topped it up with water it went straight in the sump i didnt have the cap on the header tank either so it soulnd have built any pressure and wasnt even hot enough to heat the water and it was still getting tho

[SGP]

All a pressure test on a head does is tell you is whether the valve seats are sealing properly or not.
Correct me if I'm wrong

Pressure test checks for cracks from the coolant jacket. Nothing to do with valves.

Thanks Brian sorry I was thinking of a leak down test

[scjimbo]

the other thing i did aswell i ran it briefly with no rad there was water still in the block but not n the head and for a minute or so it was fine no water in the ol as soon as i put the rad on and topped it up with water it went straight in the sump i didnt have the cap on the header tank either so it soulnd have built any pressure and wasnt even hot enough to heat the water and it was still getting tho

Im still betting on a warped head but it is a weird one.

[ross2009]

the other thing i did aswell i ran it briefly with no rad there was water still in the block but not n the head and for a minute or so it was fine no water in the ol as soon as i put the rad on and topped it up with water it went straight in the sump i didnt have the cap on the header tank either so it soulnd have built any pressure and wasnt even hot enough to heat the water and it was still getting tho

Im still betting on a warped head but it is a weird one.

the heads flat mate with in .002 we checked it out at the machine shop

[scjimbo]

Well if the head is flat and the gasket wasn't damaged in any way, it can only be either a cracked water jacket to oilway in the head or the block. That's the only things left.

[ross2009]

yeah thats what im worried about mate
well the heads gone off now to be tested so well see what comes bk beginning of next week

[scjimbo]

I have my fingers crossed for you that its the head mate.

[ross2009]

yeah me too
but if it comes back fine then what lol

[SGP]

It's beginning to sound like the classic crack under the camshaft, possibly opened up during removal/installation. Worst case scenario if the heads flat I guess.

[B7]

The fact the head came off and then went straight back on with no pressure test or skim is madness IMO. Get it checked beofre you go any further.

Re grinding over machining, Simon13's father refaces loads of these for the gang and he grinds the. The finish is amazing. My local machine shop even commented on the finish once.

[ross2009]

normally that crack is quite visible but there ain't no such thing by looking I guess we shall find out next week

[ross2009]

The fact the head came off and then went straight back on with no pressure test or skim is madness IMO

it's not madness at all if it good cooked or boiled over then yeah it prob would warp it but getting a head skimmed every time you take it off is silly everyone thinks ooooo its an ali head gotta get that skimmed is rubbish I've build loads of engine before with having to skim the head and they have all been fine
mines flat with in .002 that's pretty flat no need to get it skimmed

[ross2009]

Right got the head back from pressure testing and is declared 100% crack free
But ........
They said the small cap head bung under the cam is leaking
Which is still strange how it never leaked before i took the head off

Soo if the head has a clean bill of health should I just stick it bk together with a new gasket and seal at bung up and see how it goes or should I investigate the block ???

[scjimbo]

I would do both before re assembly if I were in your shoes TBH.

[ross2009]

taking the engine out and stripping it isn't high on my list at the mo tbh

[fowler]

worst case scenario its a fooked block I have seen it and done it mate you need temperature stickers on the block and head will call you

[Demlotcrew]

Have you checked the Turbo core? It could be cracked and water is getting into the oil return.

[ross2009]

nope can't be mate its only oil cooled

[Demlotcrew]

Hmmm,

I just cant see it being the head gasket, oil pressure is much higher than the cooling water, so if the gasket was at fault you would find oil getting into the water.

The only exception to the above is the oil return paths at the edge of the block, but that would mean water leaking out of the steam/water ways along the face of the block/head then then in to the return ways and this would be easy to diagnose with a pressure test of the coolant system when the engine is up to temp or a a cold one conducted overnight.

Sorry I cant help more than that.

[fowler]

What he said ^^^^^ as i said on the phone Ross the only way to tell also you could get some Uv dye to help souce the reason for this issue.
Bad times if theres a dfect in the block

[ross2009]

indeed well like I said ben I'll stick it all bk together and I'll go from there
cheers Andy im sure I'll get to the bottom of it

[ross2009]

right guys as it seem everything was a ok stuck it all back together new manifold was also put on also a new turbo
got the bitch running today and ..................
it seems fine

as for where all this water was coming from I haven't a clue maybe it was just a dodgy head gasket here's a little vid of her running

http://i924.photobucket.com/albums/ad86 ... B1A688.mp4

[Demlotcrew]

Sounds good!

I would want to put a filter or a catch tank over the rocker cover breather.

[ross2009]

I have got a catch tank just not put the hose on yet

[gooseygander110]

that looks lovely mate ......Glad you sorted it out

[ross2009]

so am I mate I was absolutely dreading putting water in it but I had to do it to find out or not but it's all good

[redcar]

That sounds really, really nice!

[ross2009]

that's straight out the bk of the turbo aswell

[manse73]

Sssssswwwweeeeeeeetttttttttt well done ross bring on the pod