nightmare heating

[lukey4x4]

hi people finally had a free sunday to get the sj put back together n having a nightmare with this overheating still after i changed waterpump then got it propa diagnosed that the head gasket had gone we got it off n off to machine shop to get skimmed and new gaskets, so got it all put back together today ran it for abit in the garage n thort great no white smoke n creamy car running sweet , I have a digital temp gauge n it was around 70 so took it out for a spin about a mile down the road my warning light came on my temp gauge it was at 115 so turned round bk to garage open bonnet and it shot the expansion bottle out of the sj with water and steam and a load of noise , thort might of bin a air lock but it did it agen so now am stuck anyone got any ideas don't no where to go from here , thanks

[ROBBIE]

What fan are you running

[lukey4x4]

Av got 2 electrick fans mate they were both on aswell while it was running

[ROBBIE]

Are the fans the right way round? As in do they suck or blow, suck on the engine side and such

[lukey4x4]

Sure av got them so they are sucking air through the radiator

[ScottieJ]

Have you checked that your thermostat is opening at the correct temp?

It could have just been another airlock. I always make sure the system in bled properly after a refill, heaters on hot, rad cap off and run it up to temp.

[lukey4x4]

I chucked it in some hot water in the pan scotty and it open not sure on the temperature though , gunna buy a new 1 just to make sure , av got no heating in my sj mate nothing worked, could i have the pipes for heater matrix or others mixed up ? Thanks

[courior]

is ALL of the rad getting hot?? I had an overheating prob on an old Frontera my mum had. When the temp shot up some of the rad was still luke warm and other bits were like lava! U could have some crap blocking the cores in the rad, it should be roasting hot all over.

[lukey4x4]

Thanks mate al have a check when i go over to fit new thermostat av just bin reading a few peoples had problems wif the radiators bin blocked up , thanks

[ScottieJ]

I chucked it in some hot water in the pan scotty and it open not sure on the temperature though , gunna buy a new 1 just to make sure , av got no heating in my sj mate nothing worked, could i have the pipes for heater matrix or others mixed up ? Thanks

So is the heater valve still on the bulkhead (next to the brake master cylinder) and plumbed up?

Maybe a few pictures of all the coolant plumbing will help us if you could get some and post them up.