1.8 losing water

I've posted a couple of times on the series forum but first time on the freelander page.

On behalf of my father in law who has a 2000/2001 freelander 1.8 with one of those k series engines in. Pretty long thread but bear with me!

A couple of months ago a mechanic friend of mine did some work to it. My father in law reported loss of water so my friend did a compression test and found no compression on pot 4 at all. Head gasket was presumed knackered so was replaced. He also noticed that the timing belt was one tooth out and that the head gasket had been replaced already. When the head was off he also noticed that one of the valves for pot four wasn't seated at all properly. This would lead to no compression and also we assumed that it was caused by the timing being a tooth out.

Also noticed was gunk built up inside the inlet manifold for pot four but no noticable cracks between the water way and the inlet part. the inlet gasket seemed good aswell. The water way just comes to a stop to the right hand side of the inlet port.

So, everything was cleaned out, new gaskets, valves reseated, put back together, compression test with good results and away he went.

Now, loss of water again and today pot four packed up altogether. Compression test reveals no compression on pot four again. So is this cracked inlet mainfold, cracked head (he says he hasn't boiled it but it did spurt a load of water out of the cap once) or a slipped liner?

If its the inlet manifold then presumably we are still going to have to whip the head off again to reseat the valves for pot four?

All help greatly appreciated as we're at a bit of a loss.

Many thanks, pete

i wud go for slipped liner - its easy to do. Change the lump for a T220.

ok an update. took the inlet manifold off this morning and the port for pot 4 has oily deposit inside of it alot more than the other 3 ports. whatever this is it looks like the deposits have built up and caused a valve or two to not seat properly again thus causing no compression (a guess as we've not took the head off again yet)

what can be causing this oily residue inside the air inlet? also the spark plug for pot four was black.

whats involved in fitting a t series 220, am i best off just cutting my losses and going straight for that?

pete

I know with the Rover ZS and the KV6 Hippoo (not sure about the 1.8) that there is a known problems with the oil breather pipes - there are two, 1 going to throttle body and 1 going to inlet manifold - with them coating the parts in a dirty oil mix and thereby causing premature wear on the throttle body and the VIS valves. Also causing sensor mis reading. The fix was to fit an oil catch tank - It goes into the smaller of the two breather lines!

I believe that Dearot was fitting one to his hippoo (wotever happened to him).







mite be worth reading this
It is worth trying, as it is only a 10min fix

the plot thickens...................

removed the head this afternoon, liners look to be in place but a bent inlet valve on pot four. obviously bent. there is no way we could have missed this first time round as we had all the valves out and re-seated. this has happened since the last time it was in, probably yesterday when pot 4 packed up. this explains the inlet manifold being dirty with black stuff, the piston is pushing up unburnt fuel etc through the gap around the valve seating. it is only one of the two inlet valves which is bent by the way.

the question is why? could overheating bend a valve? what could have caused this apart from snapped/slipped cam belt?

even more at a loss now

pete

makes me wonder why timing belt was one tooth out in the first place - Wonder whether your bent valve is as a result of correcting something that was done for a purpose? How many miles covered since last head gasket job - any ideas - seems a bit of a coincidence?

Valve might have stuck open if it overheated and then got clouted by the piston?

Possibly Worf but I don't think so. the cam belt being a tooth out stills seems real wierd to me

having the timing a tooth out is not unusual according to other threads.

we changed the HG about six weeks ago, thats when we found it was a tooth out. Prior to that don't know. all we know is that it looked liked it had been done before (marks on the sprockets, multi-layered gasket).

it ran fine until two days ago (when this thread started)

almost decided to put a recon head on it, together with new inlet manifold etc. extra expense I know but can't think what else to do.

pete

Thought a quick update was necessary,

Recon head was put on together with replacement inlet manifold and seems to have done the trick. It would seem that the old head was warped/cracked and causing the valve to stick open because of over heating. Piston then clouts the valve and bends it causing pot four to pack up.

Anyway, everything fine and no water loss, many thanks to everyone who contributed.

Pete

jesus, I think this is the 1st happy 1.8 hgf thread I've ever seen