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Sending units
Not sure of the year of the gauges and of course with the confusion of two Gaffrig companies I dont know which I have or which to call for assistance. I'd really like to just pick one up locally without having to call and wait/ pay for shipping on such a cheap part. So how do I get the correct sender for a Gaffrig water temp gauge? I only want one to eliminate an incorrect sender being a problem with a possible cooling issue I'm trying to resolve.
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https://cimg9.ibsrv.net/gimg/www.off...b8d852aaf6.jpg
look around the outside edge of the gauges face...you would have to look under the rim of the gauge to see it...but the livorsi stuff will be labeled as such. or the older ones may even be labeled as autometer....should be able to narrow it down from there. :) |
Even if I determine which gauge it is I still need to know what sender. Hoping to just pick one up locally. The issue I'm having is temperature extremes. When the engine is just warm I don't get a reading. When the engine is hot the gauge rapidly gets to 200. There's no in between. Trying to figure out if I possibly have the wrong senders. I don't really want to call the company and try to get them to tell me the specifics of the sender so I can get it locally. I also dont want to pay for a sender and for shipping and wait a week to just do a simple test on a cheap part. I have an ohm meter to test my current senders but not sure what reading I should get for these gauges to work. Figured buying what I know to be the correct sender would be easier than messing with an ohm meter at various temps. My guess is the gauges are from the 90's and since they are still good probably from the original Gaffrig when they were a known good product? I'll check the face later today.
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are there no numbers on the sender ?
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I will look at it closer in a couple hrs. If there are numbers it would tell me what I don't want to buy, not sure how many options that leaves.
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I’m dealing with the same thing, but Faria gauges. I thought I found the right sender, but like you it takes forever to show on the gauge and then it races all the way to overheating. I am going to get a variable resistor and determine what resistance is the gauge is looking for at various temperatures, and then find a sender (which have published resistance to temperature curves) and hope that works. Major PITA |
bc,
I would go down to the local parts store and buy a cheap mechanical gauge for $20 Run it out through the engine cover and have somebody watch it for you while you run the boat. That way you will eliminate the wiring and power source as a possible issue too. |
Sounds like you have it hooked up to a temp “switch” instead of a temp sender. In other words, the switch is normally open then closes at a predetermined temperature. |
Post a pic of the gauge. I had a similar issue with one of my Gaffrig/Livorsi water temp gauges. It was a bad gauge.
Gaffrig Precision Instruments is now Livorsi Gaffrig Performance is the current Gaffrig. |
GSOT1/8
https://www.cpperformance.com/p-1307...si-gauges.aspx that would be my guess. maybe you can find what the ohms are somewhere Payupchump might be right thou. Maybe it`s a warning sender |
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