Author Topic: Installing a trans temp gauge - where to install T-fitting, and what size?  (Read 751 times)

Offline bake315

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Hi guys,

I bought a trans temp gauge for my '87 R30 and was wondering where along the "hot" line to the cooler would be the best place to install a T-fitting.  Also, what is the size of the line?  I want to make sure I buy the right fitting.  The sensor itself came with the Autometer gauge - I don't recall the thread size of it offhand.  Thanks!
• '73 Cheyenne Super C20 454/400 http://forum.73-87chevytrucks.com/smforum/index.php?topic=7672.0
• ’79 Scottsdale K10 350/NP208/SM465 “Oscar” http://forum.73-87chevytrucks.com/smforum/index.php?topic=37885.0
• ’87 Custom Deluxe R30 350/400 “Felix”

Offline Irish_Alley

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some trans have ports for pressure gauges. so what im asking is what trans do you have??? and if you install it into the hot line you prob want it as close to the trans as you can safely do. but i dont think your trans temp will drop in a foot or so.
If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley

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Offline bd

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Any convenient location between the transmission outlet port and initial cooler, which generally works out to be within about 24" of the wet cooler.  Be sure that sender protrusion into the fluid flow is not restrictive.  Also be mindful of grounding the sender body to establish a complete circuit.  For a hefty price, inline sender manifolds are available.

The factory cooler lines are 5/16" steel.  Connect the cooler line to the sender manifold using inverted flare fittings.  Double flare the line for a strong and effective fluid seal.
« Last Edit: August 15, 2018, 07:49:22 PM by bd »
Rich
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Offline bake315

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Thanks guys - I appreciate it!
• '73 Cheyenne Super C20 454/400 http://forum.73-87chevytrucks.com/smforum/index.php?topic=7672.0
• ’79 Scottsdale K10 350/NP208/SM465 “Oscar” http://forum.73-87chevytrucks.com/smforum/index.php?topic=37885.0
• ’87 Custom Deluxe R30 350/400 “Felix”