Has my head gone again?

[Wes]

I had my head replaced in May and have done about 5000 miles (It was a new one from milners. Replaced thermostat and done flush at the time. Its been fine since. Driving along the duel carrigeway today it started getting hot opened the bonnet and staf was coming fron the top of the rad it was slightly split along a join. There was still plently of water in it though and the oil was at a normal fine level. Its a 93 2.4td. I dont think there is a much pressure in the system as last time but there is still quite a bit. If i is cracked should it be under warranty?

any help would be gladly welcome

Wes

[da SLUG man]

If i is cracked should it be under warranty?

any help would be gladly welcome

Wes

not if it's caused by a faulty rad!
you'd have to go with proof of having the rad tested before you fitted the head!

[Koi]

I had my head replaced in May and have done about 5000 miles (It was a new one from milners. Replaced thermostat and done flush at the time. Its been fine since. Driving along the duel carrigeway today it started getting hot opened the bonnet and staf was coming fron the top of the rad it was slightly split along a join. There was still plently of water in it though and the oil was at a normal fine level. Its a 93 2.4td. I dont think there is a much pressure in the system as last time but there is still quite a bit. If i is cracked should it be under warranty?

any help would be gladly welcome

Wes

If your saying the rad has a split in it, then it might not be the head just a knackered rad. Some of the rads do split, it does not indicate its a head problem just a split rad.

[pops]

I had my head replaced in May and have done about 5000 miles (It was a new one from milners. Replaced thermostat and done flush at the time. Its been fine since. Driving along the duel carrigeway today it started getting hot opened the bonnet and staf was coming fron the top of the rad it was slightly split along a join. There was still plently of water in it though and the oil was at a normal fine level. Its a 93 2.4td. I dont think there is a much pressure in the system as last time but there is still quite a bit. If i is cracked should it be under warranty?

any help would be gladly welcome

Wes

had same prob with mine 1month after buying it.
had new rad fitted [warrenty job]
martin.

[Wes]

why would it overheat from a split rad if it still has water in it? The heat has never yet at anypoint reached the red (as I haven't let it)

Thanks

[pops]

why would it overheat from a split rad if it still has water in it? The heat has never yet at anypoint reached the red (as I haven't let it)

Thanks

dont know mate. mine just blew pushed out half the water.
called RAC and took it back to garage to be fixed.
first question garage asked DID I COOK IT drive on with it boiling up,
No as i had read wot can happen, from the guys and gals on here.
my head was ok, good news cos at the price of new one, bet garage would have said NOT COVERED on warrenty.

[Koi]

why would it overheat from a split rad if it still has water in it? The heat has never yet at anypoint reached the red (as I haven't let it)

Thanks

if hot the expansion of the coolant would make it seem if it was full of water, don't rely on the temp gauge to tell you its overheating. When my head went I had to top up 3 litres of water each time i drove it at no time did the needle move past the half way mark. These motors do run very hot when you pop the bonnet after a run its hot in there. You say there is pressure in the system is that when its hot or cold.
Worth checking the stat as well as this can cause overheating and pressure.
You say the heads been changed, can be sure it was brand new, all new gaskets, stretch bolts etc all torqued up correctly.

[Guest]

Wes.

It would overheat if there was a split in the rad. It's the increase in pressure that raises the boiling point of the water above normal boiling point. That is probably why it appeared to overheat but didn't go into the red.

Get the rad fixed and hopefully it should be OK.

Cheers

[Wes]

The temp gauge is working fine and by looking at the coolent bottle there seems to plenty of water in there. The thermostat was replaced along with the head which was brand new and from Milner offroad. The sypmtoms seem to be the same as when it went before but dosen't seem to be quite so much pressure in there. The only thing I can see wrong with it is the split in the rad but I guess it may have been caused by pressure in the system if the head has gone.

Does anyone know if the new heads from Milners come with any warrenty?

Thanks

[JimL]

Wes I've read all the posts in the following link and still dont know for sure what a 'bi-metallic strip' is but it sure sounds exciting and you might search more than I did to get the answers...

http://pub12.ezboard.com/ftoyotasurf...icID=242.topic

*editited*
ok having read a bit more, click on this mans website for some ultimate information
http://203.2.201.247/surf/

[Smithy]

Rookie

My head blew a month (to the day!) after buying a '93 2.4td Surf. Still under warranty but pretty hacked off! What should I be paying for a gasket set and (hopefully worst case...) a new head?? Any way to stop this happening again? Intercooler??

With thanks, Smithy.

[da SLUG man]

My head blew a month (to the day!) after buying a '93 2.4td Surf. Still under warranty but pretty hacked off! What should I be paying for a gasket set and (hopefully worst case...) a new head?? Any way to stop this happening again? Intercooler??

With thanks, Smithy.

intercooler just cools the air going into the turbo, nowt to do with engine cooling.

[da SLUG man]

Wes I've read all the posts in the following link and still dont know for sure what a 'bi-metallic strip' is but it sure sounds exciting and you might search more than I did to get the answers...

http://pub12.ezboard.com/ftoyotasurf...icID=242.topic

*editited*
ok having read a bit more, click on this mans website for some ultimate information
http://203.2.201.247/surf/

bi metal strip is just a heat switch, made of a sandwich of 2 types of metal that expand at different rates when heated...
at they heat up the strip bends and makes contact.

[trevor butler]

cylinder head failure

I bought a 91 surf 2.4td ssr limited yesturday after much searching, in good faith from Evesham and didnt even get home to Guildford, had to be recovered from Thorpe Park exit off M25. Do not rely on temp guage, if in any doubt just turn that key off, mine cooked and guage read norm, now I m looking at head skim ( if it can be done on these engines ) and new gasket ( a scorce for these would be appreciated ). It had a recent new rad after original split along top, what worries me is why it boiled unless engine was boiled whilst rad split and was weakened. What a nightmare. Bit worried about the use of the word 'again', is this a persistant problem with these engines??

[wibblywobbly]

Oh no!!!

Thats another whole site full of 10 million tricks and tips that I will addictively read every night until Christmas!!!

One thing has always puzzled me though. How come I see shots of Surfs being rammed around desert landscapes without any sign of bother? And how come the 60-70,000 miles examples we see over here are splitting rads and blowing heads after a pootle up the high street?

I have a sneaky suspicion that the problem isn't isolated to the head. The head is the weak point in the cooling chain. The Aussie guy may have stumbled across this when he discovered the temperature sensor for the cooling fan.

I guess that the best that anyone can do is flush and descale the cooling system, pressure test the rad, pressure test the head, adjust the sensor, have the vehicle serviced.... and pray!

Cheers

Rob G