I tested my sender and compared the reading against Stu Brennan's chart on TU.
Sure enough my reading showed way too much resistance,
My reading...118 ohms @ 178 degrees
Chart shows...77 ohms @ 176 degrees.
So it looks as if I need a new sender. Now this creates a whole new issue.
I have an Edelbrock F4B manifold and John Logan advised me to ensure the
threads are compatible between the stock sender and the manifold (Thanks
John). I checked with Rick at SS and he advised THEY ARE NOT.
He did not have any sort of adapter available, so I would appreciate any
advice from those much more knowledgeable. Is there an adapter available
somewhere? Are there other senders that will work AND fit the Edelbrock
manifold. Obviously, there is a sender in the hole right now...I just have no
idea where it came from?
Of course the other option is to just add 20 degrees to the gauge reading.
Thanks,
Jim Lindner
----- Original Message -----
From: James Lindner
To: tigers@autox.team.net
Sent: Tuesday, March 29, 2011 7:00 PM
Subject: Temp Gauge Accuracy
Hi All,
My Mk1 is back in the garage after a long winter's rest and some work to
address body panel issues. One of the things I wanted to do after reading a
thread from a few months back, was to check the accuracy of my gauge using a
laser thermometer.
Well I did that today and to say it was off is an understatement. After
idling for 30-45 minutes the temp at the radiator and thermostat was
185...unfortunately my gauge was reading only about 150-155 (needle about half
way between 120 & 170.)
Since I did not save that thread...can somebody give me a rundown on the
best way to get my gauge in sync. Hopefully, it will be within my technical
capbilities.
Thanks,
Jim
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