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[Paul M]

You seem to have covered all the bases with regard to "non-intrusive" diagnosis, so I think the only way forward is to get the head off . I wouldn't fancy doing such a job on a V6, let alone an engine with chains .

The good thing is you're close enough to a number of very knowledgeable people, so it's certainly not an impossible task. And it'll be a very good learning experience too!

[Matchless]

Back to basics Jamie, what temp was it showing when cap was hissing?
..cap should not lift untill pressure is 7 - 15 lb/sq in. (not sure abs. figure on diseasle)
....this pressure is not normally reached untill system is at 100 - 110c
......so if its blowing off at lower temps then either:
         the cap is faulty or isnt sealing to expansion bottle (damaged bottle seal face or a whimp is tightening the cap)
         or the pressure is rising abnormally due to to a leak in the head gasket etc.

[Ronald_McBurger]

YES. Sell the rather thing to me so I can have a play.

LOL, I suspect what I would want for it, and what you are prepared to pay are not even close

If you are even thinking of going above £100 then don't insult me!

Knackered gearbox, knackered and cooked engine, HYUNDAI rather wheels, how bad can it get. Go on then, £125 and th's the best I can do.

I do nknow what is wrong wity this engine and can sort it in 30 minutes.

[TheBoy]

YES. Sell the rather thing to me so I can have a play.

LOL, I suspect what I would want for it, and what you are prepared to pay are not even close

If you are even thinking of going above £100 then don't insult me!

Knackered gearbox, knackered and cooked engine, HYUNDAI rather wheels, how bad can it get. Go on then, £125 and th's the best I can do.

I do nknow what is wrong wity this engine and can sort it in 30 minutes.

You had to mention the crappy effing wheels, didn't you    

So what do you reckon needs doing to it?

[Auto Addict]

YES. Sell the rather thing to me so I can have a play.

LOL, I suspect what I would want for it, and what you are prepared to pay are not even close

If you are even thinking of going above £100 then don't insult me!

Knackered gearbox, knackered and cooked engine, HYUNDAI rather wheels, how bad can it get. Go on then, £125 and th's the best I can do.

I do nknow what is wrong wity this engine and can sort it in 30 minutes.

You had to mention the crappy effing wheels, didn't you    

So what do you reckon needs doing to it?

He's bluffing, to get a good deal

[TheBoy]

Back to basics Jamie, what temp was it showing when cap was hissing?
..cap should not lift untill pressure is 7 - 15 lb/sq in. (not sure abs. figure on diseasle)
....this pressure is not normally reached untill system is at 100 - 110c
......so if its blowing off at lower temps then either:
         the cap is faulty or isnt sealing to expansion bottle (damaged bottle seal face or a whimp is tightening the cap)
         or the pressure is rising abnormally due to to a leak in the head gasket etc.


 

Went up to 96 on gauge.  Experience with Tech2 puts this in the high nineties region.....

This is the 4th cap - previous 3 have suffered and blow easily now.

2nd bottle (currently a v6 one), to rule that out.

To me, simply too much pressure building up....   ....when I try to release pressure after a run (as an experiment), it takes a good 30s+ to release the pressure - much more than other cars I've had.

[Admin]

As I see it, only option left is to try this fernox stuff before removing the head....

Once that stuff is put through, you know that the system has been cleaned out are much as can be. All that remains then, is rather more serious.

[Marks DTM Calib]

Its been Forte'd which is better than Fernox for this app....

Just pop the head off.....it doesn't look to bad a job.

[TheBoy]

Its been Forte'd which is better than Fernox for this app....

I'm impressed with how it cleaned the coolant bottle....

Just pop the head off.....it doesn't look to bad a job.

Hmmm, are you available around sometime