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1

Omega General Help / Re: no heat!!

« on: 12 January 2010, 13:31:51 »

any other problems? engine overheating?

Have you check the rad to see if the water in the system is hot?

2

Omega General Help / Re: Losing water, No heat from heater and ovevheating

« on: 07 January 2010, 14:10:25 »

Update, Just been out looking at the car now and have found the coolant leaking from the rear of the engine which looks like its the HBV. Just waiting for a call back for a price and probably wont be able to get 1 until tomorrow.

Is there anything I can do to stop it leaking in the mean time as the coolant is costing me a fortune!

Cheers

3

Omega General Help / Re: Losing water, No heat from heater and ovevheating

« on: 06 January 2010, 22:21:37 »

Right time for the update. Fitted the thermostat back on and refilled with coolant.

Started the car and let it idol. Temp rose slowly but the heating didnt work. Once it got to about 95oC the water started to come out of the filler head ( I didnt have the cap on). The water was steaming hot and didnt smell of petrol.  Stop the engine and went in to get some more coolant. Refilled which it took about 1.5 litres. Started the car again and the water moved up and down in the filler tank. I put the cap on and the water level went down. Undid the cap to top it up and it rose back up again. Check all round and cant see anything leaking altho it is dark outside.

Also there isnt much stream coming from the exhaust, just what you would expect in this weather. At no point did the heating blow hot.

4

Omega General Help / Re: Losing water, No heat from heater and ovevheating

« on: 06 January 2010, 21:04:37 »

In the temperatures we have at the moment steam from the exhaust is almost mandatory !!1 Just look at every other car on the road .. and think do they all have knackered Head Gaskets !!!!

My thoughts are quite simple ... with the rate you are losing water .. if it was from the HG into a cylinder you'd probably have other problems .. major ones !!!  Therefore it is an "external" leak of some sort and it just needs a dry day and a bit of looking for ... It might be an external leak from the HG .. but it might be from 101 other places as well !!!

Not wishing to be devil`s advocate but I reached the stage where I was losing all the coolant in the header tank within 10 miles and the only symptons I experienced whilst driving was a steam cloud from the exhaust. Have you removed the header cap and sniffed for any smell of fuel/combustion fumes?

Checked the thermostat and its working fine. Going to put it back top the coolant up and have a sniff in the header filler.

Will keep you updated.

Thanks

5

Omega General Help / Re: Losing water, No heat from heater and ovevheating

« on: 06 January 2010, 20:55:04 »

I don't see it being the thermostat  simply because if that was stuck shut and you revved the engine the temperature would RISE due to the energy you are adding to the system, and a thermostat won't cause a los of fluid

The temp does seem to rise as the engine is revved. From cold sat there is goes up slowly to around 100. From cold driving it goes up a hell of a lot quicker. The water must be leaking some where else. Ive got the thermostat in a pan of hot water now to see if it working.

6

Omega General Help / Re: Losing water, No heat from heater and ovevheating

« on: 06 January 2010, 20:30:57 »

Checked the HBV and it doesn't look like its leaking.  Should I take the thermostat out to see if it makes any difference?

7

Omega General Help / Re: Losing water, No heat from heater and ovevheating

« on: 06 January 2010, 20:22:28 »

In the temperatures we have at the moment steam from the exhaust is almost mandatory !!1 Just look at every other car on the road .. and think do they all have knackered Head Gaskets !!!!

My thoughts are quite simple ... with the rate you are losing water .. if it was from the HG into a cylinder you'd probably have other problems .. major ones !!!  Therefore it is an "external" leak of some sort and it just needs a dry day and a bit of looking for ... It might be an external leak from the HG .. but it might be from 101 other places as well !!!

Going to have a look for the HBV in a minute but how do I go about releasing the pressure to get the heating working for the min?

Also would a faulty HBV cause the engine to over heat?

Thanks

8

Omega General Help / Re: Losing water, No heat from heater and ovevheating

« on: 06 January 2010, 20:01:12 »

Do you have any idea where the water is leaking from ??  Check the back of the engine as the HBV (Heater Bypass Valve) is a known source of problems.

That amount of water MUST be visible surely !!!   

Mine wasn`t and it was the head gasket
Is the engine a tad lumpy for about 30secs/1min on initial start up. Any steam from exhaust?

No lumpyness, there is steam from the exhaust.

9

Omega General Help / Re: Losing water, No heat from heater and ovevheating

« on: 06 January 2010, 19:59:43 »

Do you have any idea where the water is leaking from ??  Check the back of the engine as the HBV (Heater Bypass Valve) is a known source of problems.

That amount of water MUST be visible surely !!!   

Cant see anywhere from where the water is leaking from. Raining weather and this bad weather isnt helping me notice tho. Is it at the back of the engine on mine as the engine on mine is turned round being an auto (I think). What does it look like?

Yep. Driver`s side, where the two heater hoses enter the bulkhead, follow hoses down towards the right and you`ll see a black starship thingy where they connect. That`s it

Can I see it from under the bonnect or do I need to get underneath?

10

Omega General Help / Re: Losing water, No heat from heater and ovevheating

« on: 06 January 2010, 19:55:00 »

What is your location?

One of us may be nearby...

My location is Denton, Manchester.

11

Omega General Help / Re: Losing water, No heat from heater and ovevheating

« on: 06 January 2010, 19:54:13 »

Do you have any idea where the water is leaking from ??  Check the back of the engine as the HBV (Heater Bypass Valve) is a known source of problems.

That amount of water MUST be visible surely !!!   

Cant see anywhere from where the water is leaking from. Raining weather and this bad weather isnt helping me notice tho. Is it at the back of the engine on mine as the engine on mine is turned round being an auto (I think). What does it look like?

12

Omega General Help / Losing water, No heat from heater and ovevheating

« on: 06 January 2010, 19:39:33 »

Hi All, Hope you can help me with is. Its doing my head in.

Car is a 2.2 auto.

Problems started about 8 weeks ago. Had the car since April and been really happy with the car. 8 weeks ago i got a coolant warning on the dash, thought nothing of it and topped it up. Got the same warning about a week later and then the problems started.

Its been losing water more and more and the cooling system seemed to be getting airlocked causing it to over heat slightly. The temp gauge would go over the normal 90 oC but once i gave it a quick boot upto 4/5 thousand revs the temp would come down back to normal.

This got worse and has now stopped the heating working altogether and overheats all the time now. 

I have has this problem before on a Fiat bravo overheating and the heating not working and it was a pressure block. Released the pressure with a bleed value on the system but I werent losing water with that car.

Got a funny feeling that it is the thermostat stuck, but this doesnt explain the lost water problem.

Been into a motor store to get a e10 socket to remove the thermostat cover and they reckon it is the head gasket.

Any ideas??

I have checked the oil filler cap and dipstick and they look normal with oil so dont think it is the head gasket but im not sure.

Please please help. Im at my whits end.

Going to remove the thermostat cover soon and remove the thermostat, just waiting for the engine to cool down.

Many Thanks

Phil

13

Omega General Help / Water Pump. 2.2 Auto

« on: 08 January 2010, 09:21:21 »

Can anyone tell me where the water pump is located and what it looks like?

Also would a water pump not working cause the engine to overheat? How much pressure does it pump the water through?  I.e if i took the small pipe of the thermostat housing would it leak out as if I were topping it up or should it be flying everywhere? This is with the engine running.

Also after draining the system to take the thermostat out last night, i topped it back up and expected to need to top it up more after starting the engine but the water didnt move at all, does this mean the water pump is knackered?

Cheers

14

Omega General Help / Re: starting help

« on: 07 January 2010, 16:18:05 »

When you say it wont start what is happening? I.e just clicking, Nothing, Turning over???

15

Omega General Help / Re: Bleed Valve, Cooling system? Engine Overheating!

« on: 07 January 2010, 20:28:21 »

So leave it as it is then until I replace the HBV?

Nightmare getting to work with no heating and the engine overheating! Oh well.

Thanks