Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: omega3000 on 01 March 2012, 17:37:03
-
Only did a run of 16 miles today and the temp gauge was sitting high again , 3 miles from home the gauge went into the red for the second time this month ? All steam coming out from under the bonnet and when i opened the bonnet the header tank was gushing water out the top , with bubbling through the system . There are no leaks , just this water pressurising in the header tank . Since removing the air con it seems this has been the ongoing problem so was thinking is it the HBV thats causing problems as ive read somewhere i can disconnect the HBV altogether but would that stop the over heating ? The heater is hot and all pipes are hot , no gunk mayo anywhere either . Fans are cutting in but dont seem to be keeping the engine cool unless its on idle :(
-
could it be the thermostat playing up?
-
Blocked radiator ?
-
could it be the thermostat playing up?
Would that cause the header tank to boil over martin ? If im driving around town it keeps cool ish but everytime i go on a run it just boils over ...very strange .
Rad was flushed Albs , ,,, if its the head gasket i wont be fixing it :-X
-
Rad core blocked with dirt/flies etc on the outside ? Fans definitely working as they should ? If your not losing coolant then the HBV should be ok. Water pump might be suspect.
-
Rad core blocked with dirt/flies etc on the outside ? Fans definitely working as they should ? If your not losing coolant then the HBV should be ok. Water pump might be suspect.
Fans working as they should at correct temp , i stuck the car in sports mode for 10 sec on the dual carridgeway and its from that point the car over heated if that makes any difference :-\
Anyway to check the water pump is faulty ?
-
Im thinking inneficient rad due to crap and flies etc. restricting airflow,or water pump past its best.
-
Can the water pump be replaced with just the auxilery belt off ? Can i rule out the thermostat if the pipes are all hot and heater is working ok ?
-
My best "guess" also blocked radiator, but more likely knackered water pump.
Best way to check is to remove and replace water pump - believe can be done without removing cam belt cover but fiddly - easier to take cam belt cover off, particularly if water pump tight in housing (usually needs persuading out with a mallet!)
-
If you have flushed the system, Imo you have pushed the sludge from the engine into the radiator.
If your car runs ok until the thermostat opens (97 ish) then the temp goes through the roof, you have a blocked up radiator ;)
Iirc, as the stat opens, it directs the water threw the radiator.
If it can't flow, it boils back up out of the water bottle :(
I know this because I had a bunged up heater matrix and after flushing, it happened to me :'( :'(
Remove your radiator and pour in some fenox central heating flush. Leave the rad flat and let it soak in for a day or so. Flush out with a hosepipe and watch the crap come out :y
Stick it back together then top up with anti freeze :y
-
If you have flushed the system, Imo you have pushed the sludge from the engine and into the radiator.
If your car runs ok until the thermostat opens (97 ish) then the temp goes through the roof, you have a blocked up radiator ;)
Iirc, as the stat opens, it directs the water threw the radiator.
If it can't flow, it boils back up out of the water bottle :(
I know this because I had a bunged up heater matrix and after flushing, it happened to me :'( :'(
Remove your radiator and pour in some fenox central heating flush. Leave the rad flat and let it soak in for a day or so. Flush out with a hosepipe and watch the crap come out :y
Stick it back together then top up with anti freeze :y
Thats whats happening and seems the faster i drive the car the hotter it gets but wont cool down ....not enough airflow through the rad "possibly" ? I just want to keep costs down and try the cheapest option open for now , the rad has been drained twice now and everytime its been drained no sludge has come out and it drans freely and clean... i havent used any fenox or rad cleaner in the system as there was no sludge issues but i can try that if you advise ;)
-
If you have flushed the system, Imo you have pushed the sludge from the engine and into the radiator.
If your car runs ok until the thermostat opens (97 ish) then the temp goes through the roof, you have a blocked up radiator ;)
Iirc, as the stat opens, it directs the water threw the radiator.
If it can't flow, it boils back up out of the water bottle :(
I know this because I had a bunged up heater matrix and after flushing, it happened to me :'( :'(
Remove your radiator and pour in some fenox central heating flush. Leave the rad flat and let it soak in for a day or so. Flush out with a hosepipe and watch the crap come out :y
Stick it back together then top up with anti freeze :y
Thats whats happening and seems the faster i drive the car the hotter it gets but wont cool down ....not enough airflow through the rad "possibly" ? I just want to keep costs down and try the cheapest option open for now , the rad has been drained twice now and everytime its been drained no sludge has come out and it drans freely and clean... i havent used any fenox or rad cleaner in the system as there was no sludge issues but i can try that if you advise ;)
I'm far from the expert on here but if you read this http://www.omegaowners.com/forum/index.php?topic=99184.0
Sound familier :y
-
Just re read that old post and noticed you had read it yourself ::)
As MarkDTM and Daz said, give it a try, it worked for me :y
Leave the fernox in there for a couple of days or longer if you can.
hth :y
-
Just re read that old post and noticed you had read it yourself ::)
As MarkDTM and Daz said, give it a try, it worked for me :y
Leave the fernox in there for a couple of days or longer if you can.
hth :y
Does the rad have to come off ? Just thinking about blocking the pipes off if i can , then filling it with the rad flush :-\ then again i wont be able to reverse flush it ::)
-
Just re read that old post and noticed you had read it yourself ::)
As MarkDTM and Daz said, give it a try, it worked for me :y
Leave the fernox in there for a couple of days or longer if you can.
hth :y
Does the rad have to come off ? Just thinking about blocking the pipes off if i can , then filling it with the rad flush :-\ then again i wont be able to reverse flush it ::)
Yes, pull it out and lay it flat on the ground in you back garden.
I blocked up the holes with a few poly bags and some gaffa tape.
As mentioned before, leave the fernox or similar stuff (I got mine from B&Q) as long as you can :y
-
Just re read that old post and noticed you had read it yourself ::)
As MarkDTM and Daz said, give it a try, it worked for me :y
Leave the fernox in there for a couple of days or longer if you can.
hth :y
Does the rad have to come off ? Just thinking about blocking the pipes off if i can , then filling it with the rad flush :-\ then again i wont be able to reverse flush it ::)
Yes, pull it out and lay it flat on the ground in you back garden.
I blocked up the holes with a few poly bags and some gaffa tape.
As mentioned before, leave the fernox or similar stuff (I got mine from B&Q) as long as you can :y
Ok thanks for your help TG ;) Looks like a weekend job as cant take off the road till then ....will give it a try :y
Failing that it will be water pump next ::)
Thanks all ;)
-
Cant remember who quoted this but could this be why my rad is not being as eficient as it should be .
SLudgepump = autogearbox
box to air is gearbox heat exchanged in radiator to cool it
I.E gearbox cooler built into side of rad thus making the rad do more work
:-\ :-\ :-\ :-\ :-\
Oil cooler in rad blocked , hence the faster the box works the hotter the rad will get from all the sludge . Internal auto box cooler blocked inside the rad :-\
-
Cant remember who quoted this but could this be why my rad is not being as eficient as it should be .
SLudgepump = autogearbox
box to air is gearbox heat exchanged in radiator to cool it
I.E gearbox cooler built into side of rad thus making the rad do more work
:-\ :-\ :-\ :-\ :-\
Unlikely - refers to small "oil cooler" for autobox built into drivers side of radiator.
-
Cant remember who quoted this but could this be why my rad is not being as eficient as it should be .
SLudgepump = autogearbox
box to air is gearbox heat exchanged in radiator to cool it
I.E gearbox cooler built into side of rad thus making the rad do more work
:-\ :-\ :-\ :-\ :-\
The side of the radiator is where most autoboxes have their ATF cooler fitted as standard. ;)
-
Cant remember who quoted this but could this be why my rad is not being as eficient as it should be .
SLudgepump = autogearbox
box to air is gearbox heat exchanged in radiator to cool it
I.E gearbox cooler built into side of rad thus making the rad do more work
The side of the radiator is where most autoboxes have their ATF cooler fitted as standard. ;)
:-\ :-\ :-\ :-\ :-\
When its off the car i will check the flow to the AT fluid cooler .... ;)
Gearbox works fine , would of been issues with the box me thinks if it was over heating the ATF :-\
-
Cant remember who quoted this but could this be why my rad is not being as eficient as it should be .
SLudgepump = autogearbox
box to air is gearbox heat exchanged in radiator to cool it
I.E gearbox cooler built into side of rad thus making the rad do more work
:-\ :-\ :-\ :-\ :-\
The side of the radiator is where most autoboxes have their ATF cooler fitted as standard. ;)
When its off the car i will check the flow to the AT fluid cooler .... ;)
Gearbox works fine , would of been issues with the box me thinks if it was over heating the ATF :-\
You're barking up the wrong radiator tree ;)
-
Cant remember who quoted this but could this be why my rad is not being as eficient as it should be .
SLudgepump = autogearbox
box to air is gearbox heat exchanged in radiator to cool it
I.E gearbox cooler built into side of rad thus making the rad do more work
:-\ :-\ :-\ :-\ :-\
The side of the radiator is where most autoboxes have their ATF cooler fitted as standard. ;)
When its off the car i will check the flow to the AT fluid cooler .... ;)
Gearbox works fine , would of been issues with the box me thinks if it was over heating the ATF :-\
You're barking up the wrong radiator tree ;)
Dam it ::) It was worth a try ;)
See how much gunk i can get out if any from the rad at the weekend ::) ::) ::) ::) ::) ::)
-
Cant remember who quoted this but could this be why my rad is not being as eficient as it should be .
SLudgepump = autogearbox
box to air is gearbox heat exchanged in radiator to cool it
I.E gearbox cooler built into side of rad thus making the rad do more work
:-\ :-\ :-\ :-\ :-\
The side of the radiator is where most autoboxes have their ATF cooler fitted as standard. ;)
When its off the car i will check the flow to the AT fluid cooler .... ;)
Gearbox works fine , would of been issues with the box me thinks if it was over heating the ATF :-\
You're barking up the wrong radiator tree ;)
Dam it ::) It was worth a try ;)
See how much gunk i can get out if any from the rad at the weekend ::) ::) ::) ::) ::) ::)
Don't try and "flush" the gearbox atf cooler mate - just the main radiator ;)
-
Ok ;) Have sent you PM ....ill just flush the main rad :y
-
And make sure you dont get any water or foreign objects in the autobox cooler while cleaning out the water rad. ;)
-
And make sure you dont get any water or foreign objects in the autobox cooler while cleaning out the water rad. ;)
Will do albs ;)
Guess its a hit and hope job that the rad cleaner will do its job working its way through every fin , looking at all the advice it does add up to the fact that the flow is getting blocked and pumping back up through the header .
On with the job , ill be taking the rad off later once i can get the rad cleaner ;)