How Do I? rover v8 problems

[ayoungman]

Bubbles in water system, thn engine overheats. Pushes out water.
Have, replaced inlet manifold gasket, then refitted and teted the engine. no improvement !

So, off with the heads, both were suspect at ech end between water jacket and end cylinder bore, both replaced with decent heads, refitted and tested, guess what ? still bubbles appearig in the rad' then over heats !

Any suggestion fella's ?

 

[CCKW353A1]

Is it a 3.9? cos if it is then you most likely have one of the liners loose at the top, quite a common fault . Not cheaply curable as it need the liners replacing with flanged ones to effect a cure, cos as built the head gasket sits on the block not the liner top , with the flange the gasket then sits on the liner so no leak .

 

[ayoungman]

bog standard 3.5 on twin SU's, froma 1982 range rover.

 

[TEMPL4R]

You could have a porous liner. You could try a Cylinder Leakage Test. That puts comressed air in the cylinder ( a bit like a compression test in reverse) if there is a leak and air can get through anything, it will send bubbles into the water system. That wil tell you whcih cylinder the problem is coming from.

http://www.sealey.co.uk/PLPageBuilder.asp?gotonode=ViewProduct&method=mViewProduct&productid=9323

Use one of these.

Chris

 

[Millsy]

Check your water pump and the cavity it sits in. They can go porous there.

 

[ayoungman]

so, if i take the water pump off, whats the proceedure to fix it ?