Water leak and head gasket replacement

[Aris]

My TB4.2 DualFuel GQ died out on me today.
Reason: no water in LPG gas converter (which promptly froze over)
The problem: 2-3 litres of water disappeared.

Me and a friend feverishly looked for a leak, just about everywhere the water pipes run, plus all around the water pump and gas converter, but to no avail. No evidence of water leaking anywhere.

Exhaust seems very moist. Could be a byproduct of the LPG system, or could be where the water is going.

To top it off, the water in the radiator has froth. Gas leaking into it? dunno...

So apparently my head gasket needs to be laid to rest, as it seems the most logical place for the water to disappear.

I have a gregory's and a quick review of the procedure says I'll also be changing my exhaust manifold gasket (and possibly other gaskets) as well.

It doesn't look to be too financially frightening, but I'd like some testimony from people who've done it as to what I'll end up replacing, what I'll end up paying, any good written material on it (on top of the Gr' manual), important pointers, things to watch out not to do or be careful around, specialized tools I may need and any other useful bits of info, or even alternative theories on lots of water disappearing that do not involve the head gasket.

Thanks!

[jtraf]

Yep sure sounds like you shit a head gasket but I hate to be the bringer of bad news but the tb42 is renound to also crack the head......

Pull everything apart and you will have to send the head away for pressure and crack testing and to be decked. they will advise if the head
is cracked or not if you can't see any cracks when you pull it off the block.

May as well have the radiator cleaned at the same time as it seems that you are getting oil in the water hence the white froth???

Don't drive it any longer it will only make it worse

James

[Rainbow Warrior]

My TB4.2 DualFuel GQ died out on me today.
Reason: no water in LPG gas converter (which promptly froze over)
The problem: 2-3 litres of water disappeared.

Me and a friend feverishly looked for a leak, just about everywhere the water pipes run, plus all around the water pump and gas converter, but to no avail. No evidence of water leaking anywhere.

Exhaust seems very moist. Could be a byproduct of the LPG system, or could be where the water is going.

To top it off, the water in the radiator has froth. Gas leaking into it? dunno...

So apparently my head gasket needs to be laid to rest, as it seems the most logical place for the water to disappear.

I have a gregory's and a quick review of the procedure says I'll also be changing my exhaust manifold gasket (and possibly other gaskets) as well.

It doesn't look to be too financially frightening, but I'd like some testimony from people who've done it as to what I'll end up replacing, what I'll end up paying, any good written material on it (on top of the Gr' manual), important pointers, things to watch out not to do or be careful around, specialized tools I may need and any other useful bits of info, or even alternative theories on lots of water disappearing that do not involve the head gasket.

Thanks!

You could also have head problems, my water jacket corroded through into No6 cylinder, it seemed to have less meat in the jackets at the back, whether by design or the angle, I don't know.

Good Luck

[TUFF MAV]

The heads also have a problem of cracking through the holes for the pushrods. If it needs a full reco on the head you need to allow around $1000 for head work alone.

Kyle

[bogged]

The heads also have a problem of cracking through the holes for the pushrods. If it needs a full reco on the head you need to allow around $1000 for head work alone.

Kyle

brand new head from Nissan $1300.. non Efi... not sure if they are same.

mate has had a nightmare run with 4 heads in 12 mths...
1) when bought car
2) when replaced that - was faulty head gasket. = bought another motor from wrecker to get going again
3) motor from wrecker shit the head
4) replaced that, which when he got the 3in exhaust the other day decided to do tappets, noted white oil in rocker - cracked #3 again

now going a Chev..

[TUFF MAV]

The heads also have a problem of cracking through the holes for the pushrods. If it needs a full reco on the head you need to allow around $1000 for head work alone.

Kyle

brand new head from Nissan $1300.. non Efi... not sure if they are same.

mate has had a nightmare run with 4 heads in 12 mths...
1) when bought car
2) when replaced that - was faulty head gasket. = bought another motor from wrecker to get going again
3) motor from wrecker shit the head
4) replaced that, which when he got the 3in exhaust the other day decided to do tappets, noted white oil in rocker - cracked #3 again

now going a Chev..

Bogged is $1300 for a complete head or a bare head ? Your mate dosn't have a spare bottom end ?




Kyle

[bogged]

Bogged is $1300 for a complete head or a bare head ? Your mate dosn't have a spare bottom end ?

I think hes got the spare donk still yes. will find out on the head, that was from blackburn nissan.

[TUFF MAV]

Bogged is $1300 for a complete head or a bare head ? Your mate dosn't have a spare bottom end ?

I think hes got the spare donk still yes. will find out on the head, that was from blackburn nissan.

I need a bottom end as a spare.

Kyle

[bogged]

Bogged is $1300 for a complete head or a bare head ? Your mate dosn't have a spare bottom end ?

I think hes got the spare donk still yes. will find out on the head, that was from blackburn nissan.

I need a bottom end as a spare.

Kyle

already emailed him