TiALI
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| posted on 2/6/13 at 09:49 AM |
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Zetec Cooling Issues
Hi Everyone,
I just started my westfield with a 2.0 zetec blacktop engine.
The strange thing is that when I start the engine, the level in the expansion tank raises. And when I shut off the engine, the level comes down again.
I dont have a heater installed and therefor blocked one if the thermostat outlets (the one on the intake side).
The other outlet (bypass) has been tee'd with the outlet from the expansion tank, and this pipe goes to bottom of the radiator before the
waterpump. I've seen people running seperate lines for this, Is that a must? If yes, why?
Installation just like this picture:
Is it normal that the level rise just after start?
Could this caused by air locked somewhere in the system? How do you usually bleed the system?
I really appriciate some help
Thank you
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TiALI
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| posted on 2/6/13 at 09:55 AM |
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Just found a post here
http://www.locostbuilders.co.uk/post.php?acti
on=reply&fid=9&tid=149381&repquote=1263510
quote:
Originally posted by coozer
That's spot on Rich, nice water colour ... very important to have the bypass and header tank connections separate into the bottom hose, and
even better to have the bypass go back in nearer the water pump.
Is yours like that Kyle?
[Edited on 23/1/11 by coozer]
Is it possible that this might be my problem? I don't really understand why though...
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TiALI
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| posted on 2/6/13 at 11:06 AM |
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Here you can see a picture of the thermostat bypass line connecting through a Y-pipe with the line from the expansion tank. And then Tee'd
before the waterpump.
It may be hard to see the pipe since its beneath the big pipe going from the thermostat to the upper end of the radiator.
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britishtrident
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| posted on 2/6/13 at 11:10 AM |
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It is actually fairly normal most tintops do it to some extent, a bigger flowing by-pass will reduce it but it won't get rid of it completely.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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coozer
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| posted on 3/6/13 at 09:27 AM |
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Separate the header tank and bypass connection.
The header tank connection should go as close as possible to the rad on thee bottom hose and the bypass hose as close to the water pump as
possible.
That will solve the problem.
1972 V8 Jago
1980 Z750
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