There are two typs of senders, one has a pipe thread that goes right into
the head, and the other, which I suspect you have, is a tubular part with
a packing nut to hold it in. If the packing nut is tightened too much it
will be flared out and difficult to get out. It is also possible that the
sender is corroded into the head. I removed the thermostat housing and,
using a punch, drove the sender out. It takes some work, but it can be
done. Good luck!
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On Mon, 22 Apr 2002, aaron atkins wrote:
> When I last drove my car the temp gauge had to be tapped to make the needle
> move up. By the time I was done tapping the temp was extremely high. The
> radiator did not bubble over or anything, the only indication was the gauge.
> Just to be on the safe side I bought a new Autometer electric temp gauge.
> The problem is that the sending unit adapter that came with it looks like it
> will not fit were the stock one is.
> Now the questions
> 1. How do I get the stock sending unit out? I got the keeper/holder out,
> but the sending unit stayed in.
> 2. Is there another adapter to fit in the stock location?
> There was something else I noticed. With the radiator cap off I revved the
> motor to check for water flow. When I did this water overflowed out of the
> filler neck. It seems that this would indicate a blockage in the radiator,
> but maybe this is normal for this set-up. I put my hand on the front of the
> radiator to check for cold spots but, the temp was pretty uniform.
> I did check the timing with a light and got it dead on the mark. I also
> made sure that the system was completely full of water (burped the
> '67 1600
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