My saff seems to run very hot, as the temp gauge sits on the 'N' of 'NORMAL' when driving along. When stood still, it very easily boils over and loses a lot of water. The fans DO cut in, just below the red on the gauge.

So far i have tried:

Done a 'Sniff' test with came up ok
New thermostat
New Fan Switch
Flushed the system through with a good cleaner
Header Tank cap
Bypassed the water cooling on the T3 Turbo (which did drop it a little)

only thing i can really think of is maybe the rad is blocked?

any ideas to try would be great

 

Or perhaps the waterpump?

 

I had a blocked rad showing similar signs, I reverse flushed it and it solved all my issues.

saying that I would agree above, I would try the water pump

 

do the cheap stuff first, flush the system then if that dont solve the problem i would try a new pump

 

yeah, havent tried the water pump actually, but i know its working as i took the hoses off and flushed it through with clean water with the engine running, and the pump was chucking out loads of water from the 90 degree elbow.

when you say 'reverse flush' do you mean top to bottom, or bottom to top?

Thanks

 

as my first post mate, i flushed tjhe system through 3 times as there was a serious amount of rust coming out

 

might be time to try a new pump then i'm afraid

 

have you changed the gauge sender? maybe its running just fine and the gauge is wrong

there are various resistance sensors out there and people sometimes use the wrong one

***edit. ignore me just read it boils over lol***

are the fans wired up the right way? ive seem them wrong before!

 

Bottom to top

 

Let us know how you get on fella

 

James: i think they are wired correctly, doesnt look like the plug/loom has been touched. looking at fans, should they turn clockwise?

 

just make sure they are blowing the air torwards the engine is the easiest way to check mate!

also check the pipes from your rad make sure one is it alot colder then the other

 

i checked the hoses last night mate, and noticed the bottom one was the same temp as the top one????

 

Ah ok might be restricted enough to still cause a problem does it overheat if you start her up from cold and dont drive it?

 

Silly question, are the fans wired the correct way? If not they'll be going the wrong way round

 

no i dont think it boils over, but still runs a tad hot on the gauge and fans cut in at the same place.

 

as James above mate

pretty sure they are the right way around.

but this wouldnt effect the cooling whilst moving around though would it? as the needle sits on the 'n' of 'normal' even on motorways.

 

should not really effect it tbh!take rad off and give it a good old flush mate see what comes out!



P.s i have a good standard 2wd rad i wont to sell if you find thats your problem

 

oh and as james said its worth changing your gauge sender in the head as these over time do make your gauge in the dash read higher or lower over time!

Even tho this clearly wont solve your boiling over problem

 

the sender is brand new from matt lewis on ebay

 

it will if the fans have kicked in before you got your speed up because the fans will be fighting with the air coming through from the moving car.

just make sure the when the fans are on the air is traverling towards the engine and not blowing out through the bumper

 

also another thing to check.
when the temp is up feel the rad to see if its the correct temp top and bottom and feel all pipes to make sure you do have a cold pipe

 

Sorry mate didn't see that

No but I thought you said its fine driving round, but boils over when sat still?

Do you have a SECS monitor? As this will tell you exact temp of the coolant, and after fitting an uprated rad fan switch to my standard rad, fans cut in at 94deg

 

ok, i'll flush the rad bottom to top, and see if any shit comes out, and i'll also check the fans.....

 

no mate, i do really need a aftermarket temp gauge to be honest. Might order one next week.

 

SECS monitor is very handy.

 

Have you sorted it ?

Is the rad the same temp all over ?

Steve

 

Right, update

Completely flushed the sytem, no difference.

removed the stat completely, just takes longer to warm up, and runs cooler when moving, but as soon as you stop, the gauge raises quite quickly, and the fans come on when the needle hits the bottom of the red! (fans are blowing towards engine)

Rad feels very even heat wise all over.

im suspecting head gasket or maybe cracked head?

 

HG/ Block tester might be worth a shot

 

done a 'sniff' test with a snap on gauge, and came up clear which is really strange!

 

are the fins on your rad all clear?might be worth a clean


cheers james

 

check your water pump mate sounds like the pump can not disturb the water enough at idle

 

i would change the rad, sometimes the fins get clogged with scale & shite, the water flows through the rad but dosn't cool the water enough, the rad loses efficiency with age as it get build up inside it.

 

think i might bite the bullet and get a new rad AND do the water pump. Not expensive are they?

 

water pump aint too much can not remember exactly how much!


I got a got standard 2wd rad off my sapp if ya interested

 

I found it cheaper to go ally rather than standard (well not by much)

Have a word with Matt, he will sort you

 

what sort of money are ya after for it mate?

Gen pumps on ebay are £75 posted!!! doh.

Would a aftermarket (QH) one be ok do you think? pretty sure thats what i fitted in my 3dr when i rebuilt it and its been fine.

 

£45 plus postage or u can collect or i cn met ya somewhere if ya not to far! can take some pics if ya want?also got some uprated fans if ya interested

As for the pump i aint to sure i put a gen o.e one in mine,tbh the other one is prob just as good!

 

where are ya then mate? i see your from london....

 

enfield chap