Trans temp probe size?
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Senior User
Joined: Jun 2008
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From: Boca Raton, FL
Trans temp probe size?
I did a search and cant find the answer. I read in a post that the size of the probe has to be shorter than normal?? Is this true??
I bought an autometer ultralite II trans temp electric guage.
Thanks
I bought an autometer ultralite II trans temp electric guage.
Thanks
FTE Sponsor
Joined: Aug 2005
Posts: 92
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We have some info on our site here: 3-Gauge Install Pictures
The thread size on most senders is 1/8:NPT. the same thread size as the test port. The length can be a concern. The Autometer and DiPricol gauges we sell all have short probes, but the ISSPROs are a bit longer. To prevent the ISSPRO probes from bottoming out in the port you should use 2-3 wraps of teflon tape and screw it in until snug. That's it. It only needs to be secure and not leak. The ISSPRO probes don't need to make metal contact for grounding because they have their own gnd. wire. If you are still concerne we sell an item called the sender extender that in essence lengthens the depth. DieselManor - Accessories
The thread size on most senders is 1/8:NPT. the same thread size as the test port. The length can be a concern. The Autometer and DiPricol gauges we sell all have short probes, but the ISSPROs are a bit longer. To prevent the ISSPRO probes from bottoming out in the port you should use 2-3 wraps of teflon tape and screw it in until snug. That's it. It only needs to be secure and not leak. The ISSPRO probes don't need to make metal contact for grounding because they have their own gnd. wire. If you are still concerne we sell an item called the sender extender that in essence lengthens the depth. DieselManor - Accessories
Hotshot
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
We have some info on our site here: 3-Gauge Install Pictures
The thread size on most senders is 1/8:NPT. the same thread size as the test port. The length can be a concern. The Autometer and DiPricol gauges we sell all have short probes, but the ISSPROs are a bit longer. To prevent the ISSPRO probes from bottoming out in the port you should use 2-3 wraps of teflon tape and screw it in until snug. That's it. It only needs to be secure and not leak. The ISSPRO probes don't need to make metal contact for grounding because they have their own gnd. wire. If you are still concerne we sell an item called the sender extender that in essence lengthens the depth. DieselManor - Accessories
The thread size on most senders is 1/8:NPT. the same thread size as the test port. The length can be a concern. The Autometer and DiPricol gauges we sell all have short probes, but the ISSPROs are a bit longer. To prevent the ISSPRO probes from bottoming out in the port you should use 2-3 wraps of teflon tape and screw it in until snug. That's it. It only needs to be secure and not leak. The ISSPRO probes don't need to make metal contact for grounding because they have their own gnd. wire. If you are still concerne we sell an item called the sender extender that in essence lengthens the depth. DieselManor - Accessories
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Joined: Aug 2005
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The only probles we seen, and it's rare, is when people tighten them too much, causing the tip of the probe to contact inside the port. What then happens is the brass tip cracks and fluid starts leaking out where the wires enter the probe (in the potting compound of the sender). Like I said, it's very rare.
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