582 water temp sensor - doesn't fit?

F. Feeney wrote:

>Hi,
>
>I'm in the final stages of putting the 582 blue head on my hawk, and went
>to install the water temp sensor this weekend, and it doesn't seem to fit
>right. I'm installing it in the port in the middle of the head, and it
>goes in about halfway and gets very tight to turn. It was ordered from
>CPS, off the EIS system page, to work with my EIS system.
>
>A friend who did a similar install said that he found it was the wrong
>thread, and removed the head and retapped it. I'm not able to do that,
>and can't believe they're selling the wrong sensor.
>
>I called CPS, and the fellow there did some testing, and comparing, and
>reading and came back and said the sensor was a tapered 1/8-27 NPT
>thread, and the hole was 10mm, but 'just screw it in till it's tight and
>it will be fine'. That doesn't set very well with me. He said they have
>been selling this sensor all along and no on e ever returns them.
>
>Anyone know what the story is on this and where to get the right sensor
>that both fits the head properly and sends the right signal to the EIS
>system?
>
>Thanks
>
>Kevin
>
>
Here is some info from my Rans S12xl web site:
On a Rans S12xl the water temp gauge is installed at a point just before
the water enters the radiator. I also installed another one on the top
of the cylinder head, there is a place for it that is plugged in the
center of the head. I ordered one from CPS <http://www.800-Airwolf.com>
and they sent me the wrong one for the gauge thatg I told them I had, it
did not read correctly on my VDO gauge. I chose the VDO gauge because
that is want Rans sent for all the other gauges. I Called VDO and found
out what the correct sender for my gauge was and then I called CPS and
explained the problem to them. They said that they would change their
information to show the correct sender for that gauge. I had a hard time
convincing them that they were wrong, they had that (that's the one
we've always sent for that gauge) attitude, but with some help from VDO,
they were convinced.

If I remember correctly this was just a problem of the sender just not
sending the correct reading for my gage, not a fit problem.

A tapered plug is suppose to get tight before screwing all the way in,
so your plug may be the correct one.

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