Hi, our 1.9dg engine bust the coolin system distribution
part,then the water pump.
Have replaced parts and other cooling parts and the system just won't seem to bleed.
There is defo air in the system , which after two hours is still There and there is also a lot of pressure in the system in that the red light comes on when water is still present and the temp gauge slowly shoots up.
Radiator got warm but when driven went cold.
Van was front end up on jacks and revved accordingly.
I'm not technically minded but any help I can pass in would be greatly appreciated
Thanks
Katie
Water pump failed, now system won't bleed
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- BaaaadSlider
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Water pump failed, now system won't bleed
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Re: Water pump failed, now system won't bleed
Almost certainly not enough revs or for long enough. Needs to be consistent. I put a brick on my throttle pedal to do it. You don't want it screaming its guts out, but it should rev high enough to pee off your neighbours. If thats a prob, just run it somewhere nearby but away from houses. Keep your eye on temperature throughout. It'll only bleed if its warm enough as thats when thermostat opens to send hot water to rad which it hopes will start cooling it. I didn't raise mine and I managed to bleed it fine - once I realised just HOW fast the engine needed to be running. Feel rad, you should feel the hotter water gradually rising until....
Remember to keep topping up at the back end though!
Remember to keep topping up at the back end though!
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Re: Water pump failed, now system won't bleed
Thanks, was high revving it and topping water up for up to two hours , but will keep tryingCovKid wrote:Almost certainly not enough revs or for long enough. Needs to be consistent. I put a brick on my throttle pedal to do it. You don't want it screaming its guts out, but it should rev high enough to pee off your neighbours. If thats a prob, just run it somewhere nearby but away from houses. Keep your eye on temperature throughout. It'll only bleed if its warm enough as thats when thermostat opens to send hot water to rad which it hopes will start cooling it. I didn't raise mine and I managed to bleed it fine - once I realised just HOW fast the engine needed to be running. Feel rad, you should feel the hotter water gradually rising until....
Remember to keep topping up at the back end though!
Thanks
Katie
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Re: Water pump failed, now system won't bleed
If you've got a new pump and radiator was getting warm, you should be able to bleed it. Try it on the flat, I never found raising the vehicle helped in my case.
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Re: Water pump failed, now system won't bleed
Did you have the heater on hot? that's needed to get the air out of the heater circuit which is a lot of pipework on a T3
I suppose it's also possible that you have a small head seal failure which is why your distribution parts broke then water pump
I suppose it's also possible that you have a small head seal failure which is why your distribution parts broke then water pump
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Re: Water pump failed, now system won't bleed
BaaaadSlider wrote: was high revving it and topping water up for up to two hours , but will keep trying
A few years ago, I had a major oil in water issue which after fixing the engine, left the cooling system very oily.
I had to drain/flush/re-fill/bleed lots of times to get the oil out of the cooling system.
It shouldn't take more than 15 to 20 minutes to bleed it, at the most. Is there air still coming out of the rad bleed screw after 2 hours of work ?
When you say :-
There and there is also a lot of pressure in the system in that the red light comes on when water is still present and the temp gauge slowly shoots up
Note that the red light has nowt to do with pressure, it comes on if the water is too low in the expansion tank (the one on the left).
Temp gauge "slowly shooting up" is a bit of a contradiction
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That was in the thin rubber pipe off the back of the left hand head
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Re: Water pump failed, now system won't bleed
Don't want to be the harbinger of doom...
but your exact symptons were my failed engine....I had exhaust gases going into the coolant![Sad :-(](./images/smilies/icon_sad.gif)
I drove it for a number of weeks though...but you have to stop very very regularly to bleed the rad (ie let the pressure out) or it will blow every water seal in the system.
I had a 9 mile drive to work. I used to bleed it on arrival at the carpark..... and then on arrival back at home. I could get the grill off and the rad bled in minutes lol xx
But I Knew it was doing it....I could see the air bubbles in the top up tank...would continue to run even when the engine was turned off.
Sniffer test confirmed![Sad :-(](./images/smilies/icon_sad.gif)
Really hope you haven't got this issue....but to blow the distribution pipe.....that's some pressure....
Em
xx
but your exact symptons were my failed engine....I had exhaust gases going into the coolant
![Sad :-(](./images/smilies/icon_sad.gif)
I drove it for a number of weeks though...but you have to stop very very regularly to bleed the rad (ie let the pressure out) or it will blow every water seal in the system.
I had a 9 mile drive to work. I used to bleed it on arrival at the carpark..... and then on arrival back at home. I could get the grill off and the rad bled in minutes lol xx
But I Knew it was doing it....I could see the air bubbles in the top up tank...would continue to run even when the engine was turned off.
Sniffer test confirmed
![Sad :-(](./images/smilies/icon_sad.gif)
Really hope you haven't got this issue....but to blow the distribution pipe.....that's some pressure....
Em
xx
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Re: Water pump failed, now system won't bleed
Thanks for all your replies, went back to it this morning and low and behold it was all good.
pumped pipes a few times and checked levels and radiator and all fine , engine runs like a dream![Smile :)](./images/smilies/icon_smile.gif)
No leaks no bangs and no flashing light and reached temp fine no probs
So must of worked last night somehow, been for a test drive and 30 miles later no issues and water still present and radiator working fine
Thanks again
Katie
pumped pipes a few times and checked levels and radiator and all fine , engine runs like a dream
![Smile :)](./images/smilies/icon_smile.gif)
No leaks no bangs and no flashing light and reached temp fine no probs
So must of worked last night somehow, been for a test drive and 30 miles later no issues and water still present and radiator working fine
Thanks again
Katie
Owner of the Bad Bus 1.9 1989T25 running on LPG
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Re: Water pump failed, now system won't bleed
Brilliant news!! Just needed time to settle!!
Enjoy your hols xx
Enjoy your hols xx
2.1 DJ 1990 Caravelle (died and gone to heaven)
2.0 AGG (1997 ish) 1984 transporter LPG
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