Coolant Streaming From Cylinder Head

[M.T.Pilot]

Hello,

Short story
From my double cabin pick-up toyota hilux (1989, 4WD, manual) all coolant has leaked from a hole in the cylinder head under (not behind!) the cylinder head rear plate, there where the cylinder head sits on the motor block. How should I proceed in repairing this? (And what could cause a hole in the cylinder head?!).

Long story
I've got a double cabin pick-up toyota hilux (1989, 4WD, manual) to which,
since recently, I had to add a bit of coolant on a weekly basis. I
figured it was a minor leak from one of the hoses that was quite worn
out. However, all of a sudden when standing still (but with the engine
running), all of the coolant was streaming out of the engine.

I found out that it was coming from under (not behind!) the cylinder head
rear plate. With my fingers I could feel a hole (!) in the cylinder
head, there where it contacts with the motor block. I think there is
supposed to be a gasket in between the cylinder head and the motor
block, but the hole is so (relatively) big that this would not prevent
the coolant water from streaming out of the engine.

Any idea how to solve this?

Thanks,


M.T.Pilot

[dervdave]

I don`t know what the hole is but I do know the 2.4d is very susceptible to over heating and cylinder head troubles.

Either way the head will have to come off to see whats what.

[Parts-King]

They suffer from cracked heads

[M.T.Pilot]

A hole rusted its way throuhg the head. It has been taken off, welded, grinded, new head gasket, new manifold gasgets, new valve seals and the car is driving again. I'm happy about that. But I am not happy about the rattling sound it now makes. It seems to come from behind the dashboard, but I'm not sure. It is there when I push the gas pedal. If I do this and at the same time push in the clutch pedal, the sound stops. Also, it is not alway at the same volume.