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post #1 of (permalink) Old 06-08-2007, 05:25 PM Thread Starter
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What is this? Loc for Oil Temp?

See the plug on the filter adapter? Anyone know for sure what it is?

I'm looking for a good place to install the sending unit for my Oil Temp gauge.

I don't want to pull this out to find out that there is a spring on the other side and it's part of a check valve or pressure bypass valve.

FYI....93 Chevy SBC 5.7L TBI out of a PU....the adapter is where the oil cooling lines connect. I really don't want to have to break into the lines.
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post #2 of (permalink) Old 06-08-2007, 05:57 PM
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I'm pretty sure there won't be a pressure relief there; it's usually part of the pump or right next to it.

What can you see up there with the filter off? Pull the plug and look in. What's the worst that can happen?

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post #3 of (permalink) Old 06-08-2007, 06:38 PM
 
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I put an oil temperature gauge in the oil pan. I figured that was the true oil temperature if temperature is to reflect the oil coming off the bearings. I just brazed an adapter onto the rear of the pan, near the oil drain plug.

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post #4 of (permalink) Old 06-09-2007, 10:10 AM
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That's what I did also. Then I made a cage of 1" x 1/8" around it to protect the tube - mechanical gauge. When the pan rusted out I found a plug on the 258 in just about the same relative spot as on John's SBC. I had to make a special fitting to install the sender, but now it's in a much more protected location, and I can't see a significant difference in the readings I get. If anything they're a little higher. That might be because I put the bung in the pan as high as possible, so maybe it wasn't fully immersed at all times.

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post #5 of (permalink) Old 06-09-2007, 10:16 AM
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My guess is, and it's truly a guess, that the bung is for plumbing. Sometimes the relocation will incorporate a flush/bypass or even plumbing in a second filter. As for a place for a gauge? Why not?
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post #6 of (permalink) Old 06-09-2007, 11:47 AM
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Quote:
Originally Posted by Jim_Lou View Post
...... I found a plug on the 258 in just about the same relative spot as on John's SBC. I had to make a special fitting to install the sender, but now it's in a much more protected location, and I can't see a significant difference in the readings I get. If anything they're a little higher. That might be because I put the bung in the pan as high as possible, so maybe it wasn't fully immersed at all times.

i've been toyin with the idea of putting an oil cooler on my 232 scince i got the cj, now the plan includes a temp sender at the plug referenced by Jim_Lou......

the hold up is where can i put the return?

'74 CJ5232 ci,Dana 30 & 44,basically a stock rig with fiber body
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post #7 of (permalink) Old 06-09-2007, 11:59 PM Thread Starter
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Most oil coolers depend on and adapter like what is on my SBC. It 'intercepts' the oil flow going to the filter to run it through the oil cooler. Do a search on Summit.

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post #8 of (permalink) Old 06-10-2007, 07:42 AM
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Yeah, you won't get enough flow there to make a difference in temperature, and the return would have to be into the pan, which would cause a significant drop in pressure. A cooler has to be a detour in the full flow from the pump like John said.

Before you worry about a cooler you should spend some time with a temp gauge in the system. I worried about temperature because of the pressure drop off typical with AMC sixes. However I've never seen the oil get much hotter than the water temp, around 200 degrees. That's nothing to worry about.

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