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#Post#: 78046--------------------------------------------------
overheating?
DIR By: niteram
Date: October 24, 2013, 5:51 am
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my 2.25 petrol engine runs hot on the gauge, like just in the
red bit.
I've opened bonnet and all seems ok, rad hot at top, cooler at
bottom, not boiling over so I assume the thermostat and pump are
doing their jobs
the fuel gauge seems ok as it doesn't read high, so I guess the
voltage stabiliser is ok
due to the above I believe the temp sensor is faulty and reading
high.
unless the gauge itself is faulty
what do you all think?
sensor or gauge or something else?
#Post#: 78047--------------------------------------------------
Re: overheating?
DIR By: niteram
Date: October 24, 2013, 5:52 am
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I've just thought about this, it was originally a 2.6, would the
gauge be different?
#Post#: 78055--------------------------------------------------
Re: overheating?
DIR By: NoelC
Date: October 24, 2013, 8:41 am
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As far as I know gauge and senders were the same across the 4
and 6 cyl engines. It could well be the sender, I've had all
sorts of wierdness with pattern parts. A genuine sender is about
£8 or so and well worth it. Another suggestion would be pull the
gauge cluster and rig it to another series with a known good
sender, just to be sure. Simple enough to run a wire from the
sender to the gauge, then on to the voltage stabiliser without
buggering about too much.
#Post#: 78105--------------------------------------------------
Re: overheating?
DIR By: Huffo-James
Date: October 25, 2013, 2:51 am
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I'd echo Noel's reply.
I had a dodgy sender. The way I diagnosed it was to park my S3
alongside a friends. We put a jump lead across to connect the
two battery negative terminals together. Then we unplugged the
temperature senders from the side of the engine block. We used a
length of wire (speaker cable actually!) to extend the lead that
was connected to his sender so that it would reach mine.
My engine read fine on his gauge, so I deep-sixed my sender and
fitted a new genuine parts sender which saw it all working fine.
Cheers
James
#Post#: 78106--------------------------------------------------
Re: overheating?
DIR By: Snailer
Date: October 25, 2013, 3:22 am
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--- Quote from: Huffo-James link ---
>
>
>
>
> My engine read fine on his gauge, so I deep-sixed my sender
and fitted a new genuine parts sender which saw it all working
fine.
>
>
>
--- End Quote ---
A nautical term, not heard that one before
#Post#: 78109--------------------------------------------------
Re: overheating?
DIR By: niteram
Date: October 25, 2013, 3:46 am
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thanks for the replys, I shall fit a new sender and let you know
the result.
#Post#: 85324--------------------------------------------------
Re: overheating?
DIR By: niteram
Date: February 15, 2014, 4:27 pm
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right then,
fitted a new sender unit a couple of weeks ago. admittedly not a
genuine one, but not in a blue box, made no difference,
so tried a known good voltage stabiliser last week and then a
good gauge after, still no difference.
so today fitted a new thermostat and guess what ? yep broke one
bolt off in head Dmmy spit
drilled it out and tapped new thread, fitted stat, gaskets new
bolts etc
and the result
still reading hot
bugger!
#Post#: 85335--------------------------------------------------
Re: overheating?
DIR By: goinnowherefast
Date: February 16, 2014, 10:39 am
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have you flushed the rad out wit a reasonably high pressure
hose?
#Post#: 85415--------------------------------------------------
Re: overheating?
DIR By: Huffo-James
Date: February 18, 2014, 2:45 am
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What happens if you uplug the wire from the sender and short it
out against the engine block?
On some (all?) 2.25s the sender is screwed into a threaded
insert in the block. It might be worth unscrewing the threaded
insert, cleaning up the threads and re-inserting.
Cheers
James
#Post#: 85485--------------------------------------------------
Re: overheating?
DIR By: gp3trainee
Date: February 20, 2014, 7:22 am
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"My engine read fine on his gauge, so I deep-sixed my sender and
fitted a new genuine parts sender which saw it all working
fine."
You using this expression in the traditional (and correct)
nautical way, Huffo, or the modern 'gangsta' way?
For the lubbers, deep-sixing refers to hoying something over the
wall. Clear? ;D ;D
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