Help needed, Loosing faith!!!

[Daz81]

OK bought the surf with the obligatory HG problem.

So
new Head, New head gasket, new head bolts, new radiator, new timing and ancillary bolts later.

I figured its all cured, less than 200 miles after the head swap,

ITS STILL OVER HEATING

After a short, average drive NO more than 20 miles, 60mph (100K) max of 3krpm, and when i stop the over flow bottle is full and over flowong on the floor

That is the only noticable leak, the water is not coming from any where else.

The last 2 things i can think of changing are te Rad cap and Water pump.

I am poretty much skint now, after spending ni on £800 on the fricking thing.

its a 2.4TD btw, 135,000K's well looked after.

loosing my rag with this.

please help.

[stormforce]

have you changed the thermostat and then get all the air out the cooling system.

[Tiger]

Could be an air lock, do search on burping system

[MattF]

Pop a new cap on. Change the 'stat too whilst you're at it.

[BioHazard]

Should have done the water pump when you did the head....most trucks have that fail first i got mine as it went before the truck overheated

[Daz81]

No stat in at the moment to try and stop it over heating

New rad cap and water pump it is then


I also cannot believe how low geared the damn thing is, its crazy 100kmh in 5th and its at like 3k, dont want to rev it much more than that

[MattF]

No stat in at the moment to try and stop it over heating

Well, that's a bl00dy stupid trick seeing as it will have the opposite effect.

[BioHazard]

No stat in at the moment to try and stop it over heating

New rad cap and water pump it is then


I also cannot believe how low geared the damn thing is, its crazy 100kmh in 5th and its at like 3k, dont want to rev it much more than that

If you want i have a pump that was stuck in mine in aug last year now being broken (so only done 3000K)




(died of veg use and bad bottom end)

[Daz81]

Well, that's a bl00dy stupid trick seeing as it will have the opposite effect.

really car explaing why?

with out the stat there is a freer unfoiled flow around the system.

Unless the surf is different to mostly every other set up ive ever worked on in my 10+ years as a mechanic.

[Lainey]

Ok I'll take a flyer at this one......this should be fun. the stat controls the fan on and off.
If the stat is out the fan won't engage to manage the cooling of the fluids.

I'm gonna take a stab that unless you have the fan running all the time then having the stat out would not stop the system overheating as there would be no control on the colling fan?

dunno why .......just felt the need to join in

[Antshiel]

Ok I'll take a flyer at this one......this should be fun. the stat controls the fan on and off.
If the stat is out the fan won't engage to manage the cooling of the fluids.

I'm gonna take a stab that unless you have the fan running all the time then having the stat out would not stop the system overheating as there would be no control on the colling fan?

dunno why .......just felt the need to join in

10/10 for trying but,,,,,,,,,,,,,,,,,,,,,,,no you got it totally wrong. The stat opens when the water/coolant in the engine gets up to temp and allows it to pass through the radiator to cool it down. When cooled back to temp the stat closes and so on. The rad fan is switched by a heat sensor which when the vehicle is stationary (caused by no air throughflow through the rad) the water/coolant gets hoitter and trips the sensor thus kicking in the fan. Without a stat the coolant runs through the engine far too quickly to allow it to cool sufficiently and therefore another head or gasket later and he won't do it again..

[Lainey]

antsheil cool explanation cheers for that will leave my original for the entertainment of others :P

[Antshiel]

antsheil cool explanation cheers for that will leave my original for the entertainment of others :P

Like i said 10/10

[fatfires]

one would have thought a mechanic???would have known
Still never mind...I've said it before and i'll say it again
you can't educate pork

[Daz81]

Ok firstly the name calling is a tad childish do we not think?

The stat opens and closes to allow the coolant to pass throught the rad etc YES, but having not stat will not cause over heating problems. it will allow an unrestricted flow through the gallery's and rad s there is a constant supply of water.

We run our race car with out a stat for a 40 min 1 stop race and have done for about 7 years and guess what,,,,,, NO issues but then it is a Honda.

TBH, i am a litle suprised and unhappy with the response from what seem like senior members.

I know how these things go, GET THE NEWBIE!!!! etc


With regards to the truck, it is presurising considearably? i have swapped over the rad cap for a known working item from our race car as funnily enough its the same part number, lol. it didnt seem to over heat on the journey back form the work shop, I will order a new Water pump tomorrow.

after that I will be A skint and B selling the truck, i cant justify any more money than has allready been spent.

Thank you for the offer of a S/H pump, but I would prefer a new item.

Thankyou for those that offered advice.