Alfa 75 TSpark Temperature Senders

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SteveH - 27 Dec 2005 19:11 GMT

I took the opportunity of a dry day and no grit on the roads to wash the
75, clean the interior, and take it for a run.

One problem came to light..... I *thought* the old girl was about to
overheat, but further investigation reveals that the temperature sender
appears to be knackered.

Currently, after standing for 6 hours in temperatures well below
freezing, the gauge reads 90 degrees celcius. Whilst using it earlier,
the gauge was reading 110 degrees...... strangely, the warning light
didn't illuminate.

So, a couple of questions.....

1. Where is the sender on the block / cooling system?

2. Is the warning light based on a 2nd sender, meaning it's a 'fail
safe' system?

Cheers,
Steve.

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Catman - 28 Dec 2005 10:54 GMT

> I took the opportunity of a dry day and no grit on the roads to wash the
> 75, clean the interior, and take it for a run.
>
> One problem came to light..... I *thought* the old girl was about to
> overheat, but further investigation reveals that the temperature sender
> appears to be knackered.

They all do that, sir

> Currently, after standing for 6 hours in temperatures well below
> freezing, the gauge reads 90 degrees celcius. Whilst using it earlier,
> the gauge was reading 110 degrees...... strangely, the warning light
> didn't illuminate.

Not strange at all, see below

> So, a couple of questions.....
>
> 1. Where is the sender on the block / cooling system?

IIRC LHS in the middle, but ISTBC

> 2. Is the warning light based on a 2nd sender, meaning it's a 'fail
> safe' system?

*ding*

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SteveH - 28 Dec 2005 11:13 GMT

> > 2. Is the warning light based on a 2nd sender, meaning it's a 'fail
> > safe' system?
>
> *ding*

Cheers, I won't be in any hurry to fix it, then.

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