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Author engine very hot no coolant flow
tom130691
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Registered: 13th Sep 08
Location: Daventry
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30th Jun 09 at 22:14   View Garage View User's Profile U2U Member Reply With Quote

i noticed my coolant was not flowing since knowing this i have noticed engine getting hot as a result
i get no hot air throught the fans
research i have done leave me with three main areas that could be the fault

stuck thermostat (pig of a job)
water pump
blocked radiator (dont think it is this as i can squeeze the rad pipe s there seems to be not water in them )

whitch would you tackle first
AlexW
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Registered: 25th Oct 08
Location: Essex
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30th Jun 09 at 22:16   View User's Profile U2U Member Reply With Quote

Head gasket lol
Richardhhha
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Registered: 29th Sep 07
Location: Croydon, Greater London
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30th Jun 09 at 22:27   View User's Profile U2U Member Reply With Quote

what engine is it first.

water pump i would say it the main cause of no coolant flow. a rad would only be blocked if some plonker has not looked after the car and its got ether built up sludge or rust.

best say to check if the therostat has gone is easy,

get the car up to temperature and when its almost in the red get your hands on the top and bottom coolant pipes the should both be bloody hot, if they arnt then your thermostt could be duffed, you could also have a air lock (if you've had any wor done to the car envolving the removal of a y of the cooling system this could be the fault..

if the head gasket has gone you will notice a nice thick sludge in the coolant tank and the water will smell fuelish, also the coolant would ahve gone down and it would ahve over pressurised and coolant would ahve been pissing out the collant bottle by now
gez bay
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Registered: 14th Feb 08
Location: South Wales drives: Vxr
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1st Jul 09 at 08:57   View User's Profile U2U Member Reply With Quote

water pump id say
VegasPhil
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Registered: 16th Jan 05
Location: Fareham, Hants Drives: Octavia VRS
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1st Jul 09 at 09:54   View Garage View User's Profile U2U Member Reply With Quote

My money is on Water Pump. Happened to my XE when the Plastic impellor snapped.


Corsa 2.0 16v Vegas - Sold
tom130691
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1st Jul 09 at 20:31   View Garage View User's Profile U2U Member Reply With Quote

its a 1.2 8v n it aint head gasket as it doesnt looks coolant or oil
Ste
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Registered: 5th Mar 03
Location: Taif, Saudi Arabia
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1st Jul 09 at 20:33   View Garage View User's Profile U2U Member Reply With Quote

Have you checked the coolant levels? Did you have to top it up loads? did you bleed it during the fill?


I would rather lose by a mile because i built my own car, than win by an inch because someone else built it for me.
tom130691
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1st Jul 09 at 20:33   View Garage View User's Profile U2U Member Reply With Quote

rough price for a water pump to be fitted?
as tbh i dont trust my self with fucking about with timing belt
tom130691
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1st Jul 09 at 20:35   View Garage View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Ste W
Have you checked the coolant levels? Did you have to top it up loads? did you bleed it during the fill?

just got the car n realised it wernt circualting and it was abit low so put bit more in stuck heaters on ect hoping it would shift but didnt
Ste
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1st Jul 09 at 23:16   View Garage View User's Profile U2U Member Reply With Quote

Putting the heaters on won't help to bleed it mate.

Find the bleed nipples for your engine and see if you get air out first. Then come back to us if that doesn't work.

[Edited on 01-07-2009 by Ste W]


I would rather lose by a mile because i built my own car, than win by an inch because someone else built it for me.
Richardhhha
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1st Jul 09 at 23:32   View User's Profile U2U Member Reply With Quote

Does if you remove the coolant bottle cap, as some cars dont have bleed nipples. And you need to put heaters onto hot, ka's were a git for getting air locks if you didn't do this. Every car is different tho.
Ste
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1st Jul 09 at 23:40   View Garage View User's Profile U2U Member Reply With Quote

It isn't a ka and the heater has nothing to do with bleeding the coolant on a Vaux.

As I said, loosen the bleed screws with the engine running and hot so the thermostat will be open.


I would rather lose by a mile because i built my own car, than win by an inch because someone else built it for me.
craig_s
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Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
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2nd Jul 09 at 00:22   View User's Profile U2U Member Reply With Quote

dont think the 1.2 8v has a bleed screw may be wrong though.id say waterpump as iirc the waterpump is the tensioner on some of them and have a habbit of failing.
tom130691
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3rd Jul 09 at 13:27   View Garage View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Richardhhha
Does if you remove the coolant bottle cap, as some cars dont have bleed nipples. And you need to put heaters onto hot, ka's were a git for getting air locks if you didn't do this. Every car is different tho.

thats how i did my sax and it had bleed screws
but the air was in the heater matrix as you could hear the water splashing in there!
ill try this any ways
craig_s
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4th Jul 09 at 01:54   View User's Profile U2U Member Reply With Quote

if you mean you could hear the sound of water running,thats usually a sign of head gasket failure.
tom130691
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4th Jul 09 at 14:58   View Garage View User's Profile U2U Member Reply With Quote

that cars been scrapped now but the water was splashing around behind the dash loads air came out and it6 stopped

 
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