over heating

[Shish]

when i bought my surf a month or so back... the rad cap was shot... wouldn't seal properly, the rubber seals where distorted and squashed... if a cap is not sealing properly (and these have to cope with upto about 15psi remember) it will just push water into the expansion tank...

i'd suggest spending £15 on a new rad cap first, it fixed my problems...

[neal]

ill order one next week and try that first a bit cheaper than a head.... thanks

[gary]

Head Problems

ill order one next week and try that first a bit cheaper than a head.... thanks

HAVE YOU GOT YOUR HEAD PROBLEM SORTED YET? MINE WENT ON ME LAST YEAR AND COST ME £620.00 FOR ALL PARTS NEEDED. WHERE ARE YOU IN THE COUNTRY I MIGHT BE ABLE TO HELP IF YOU NEED A HEAD/BOLTS/GASKETS ETC..

[stara]

guys, if it's pressurising from COLD, then combustion gasses are entering the cooling system and pressurising it, very rarely is this the head gasket, as once the head gasket goes, water is also sucked into the cylinders giving steam from the exhaust. When a head cracks, it usually is a very fine crack, like a crack in porcelean, exhaust gasses are pressurised enough to pass through the crack, but water doesn't enter the cylinder during induction as the crack is too fine. time to break open the piggybank.

[gary]

guys, if it's pressurising from COLD, then combustion gasses are entering the cooling system and pressurising it, very rarely is this the head gasket, as once the head gasket goes, water is also sucked into the cylinders giving steam from the exhaust. When a head cracks, it usually is a very fine crack, like a crack in porcelean, exhaust gasses are pressurised enough to pass through the crack, but water doesn't enter the cylinder during induction as the crack is too fine. time to break open the piggybank.

MY HEAD CRACKED IN THREE PLACES CAUSING THE SAME AND MORE PROBLEMS ALSO LOCKED BOTTOM END DUE TO WATER IN THE POTS(HYDRAULICING). DRAINED ALL WATER AND IT RAN FINE. REFILLED IT AND STARTED MISSING LIKE A GOODEN £620 LATER IT RUNS OK BUT NOT AS MUCH POWER ANYMORE NEEDS A CAM BELT SOON SO I WILL CHECK THE TIMING THEN.

[Johnppk]

guys, if it's pressurising from COLD, then combustion gasses are entering the cooling system and pressurising it, very rarely is this the head gasket, as once the head gasket goes, water is also sucked into the cylinders giving steam from the exhaust. When a head cracks, it usually is a very fine crack, like a crack in porcelean, exhaust gasses are pressurised enough to pass through the crack, but water doesn't enter the cylinder during induction as the crack is too fine. time to break open the piggybank.

Following my problems (see previous), the dealer has accepted that the vehicle has a problem and has diagnosed a faulty head gasket caused by a "stuck" thermosatat. He is in the process of replacing the said offending articles at his workshops, however if it was a cracked head and he only changes the head gasket will the same symptoms be instantly evident following the work?
I'd rather not accept the "repair" of a replacement head gasket if the head is cracked and the vehicle doesn't last. your thoughts please.....

[Vagrant No2]

Following my problems (see previous), the dealer has accepted that the vehicle has a problem and has diagnosed a faulty head gasket caused by a "stuck" thermosatat. He is in the process of replacing the said offending articles at his workshops, however if it was a cracked head and he only changes the head gasket will the same symptoms be instantly evident following the work?
I'd rather not accept the "repair" of a replacement head gasket if the head is cracked and the vehicle doesn't last. your thoughts please.....

I would advise the dealer of your concerns as you are aware of the heads cracking (not as a design fault , but of overheating -little lie) and you do not want a delay in repair due to the work being done twice . If he knows this , it may make him double check before refitting the same head back on

Only my opinion

Rick

[medion-1]

overheating 2.4

change the rad cap it might notbe sealing properly mine done the same and that cured it it only cost a few quid for a new one let me know if it works .kevin

[neal]

thanks for your replay in live in london but i work all over the place any help with parts would be great. im 99% sure the head has gone.going to get it all done next month got a garage i use for my work vans who say they will do it for £300 labour if i get all part uk cylinderheads have quoted £595 + vat for complete head and £35 + vat for gasket set which dont seem bad just nead head bolts. rad cap. and new top hose as ive seen a split in it inside...does any one know the toyota part number for the bit i need as toyota want to know ever number goung on the surf and then they say i cant return the parts if there wrong

[matt steds]

i got myself a new (not recon but proper) head all set up ready to bolt on for £450+vat from bunts garage at trelights nr wadebridge cornwall.i'm not suggesting you come down here for one but shop around.

[whitespider]

Good price. Totally agree about shopping around, ukcylinderheads get a fair amount of business from surf owners and I think they rest on their laurels.

I had a bad experience with them and during messing me about the owner of ukcylinder blurted out he thought that most of the problems he sells heads to are for surfs with 'crappy blocks'. Doesn't stop him flogging them so called genuine heads.
Personally I think they don't warrant their reputation, anyway just my experience. Hopefully yours will be smooth as...

Ronnie

[stara]

Following my problems (see previous), the dealer has accepted that the vehicle has a problem and has diagnosed a faulty head gasket caused by a "stuck" thermosatat. He is in the process of replacing the said offending articles at his workshops, however if it was a cracked head and he only changes the head gasket will the same symptoms be instantly evident following the work?
I'd rather not accept the "repair" of a replacement head gasket if the head is cracked and the vehicle doesn't last. your thoughts please.....

if the head gasket is changed, but the head is cracked, then the symptoms will remain, however, there are 'repairs' (bodges) than can be done to repair a cracked head, like stitching, or radweld type stuff added to the coolant, the crack will show itself again though sooner or later. so hopefully he is honest enough to not bodge the head and then blame the gasket.

***pressurising from cold is not a rad cap, it is combustion gasses entering the coolant***

[Lupine]

Is it the head?

My wife was driving our 93 2.4td when she smelt something wrong, saw that the thermo was sky high and the red light came on. Stopped the truck with a lot of steam coming out the bonnet.

She found that the rad coolant level was right down and re-filled with about 3 litres. Got a tow to a garage. They have now run a gasket test and can't find fault. Water level remains constant whilst running and even when taken out for 5-6k. The garage are being a bit useless and can't suggest anything..

Are we talking a cracked head here?

[stara]

hopefully your's is a dodgy rad cap, as the pressure test is done through the rad filler, the cap would have been off and obviously not tested, i would def change the thermostsat and rad cap though as a precaution, if there was a head crack, it is highly likely that the losing coolant fault would be a constant thing, also do a forum search for tips on filling the cooling system to help eliminate air locks. (btw 3litres is an awful lot of coolant to be missing)

[AJP]

Yet another over heating

New rad fitted yesterday - great or so I thought 40 miles to work and no probs, another 40 back no probs half mile from home the fan kicks in and the gauge goes up!

Just ran it outside the house and turned the heater on - on hot - but cold

Suggestions please