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Here's a progress report on mods and services I've mentioned. The oil pan gasket replacement has gone well, although as advertised by everyone, it is difficult to get the darn thing to stay in place...and it takes multiple re-torqueing of the bolts over several days. They just keep loosening up as the gasket seasons.It appears the UV oil dye may have been a very valuable test. The most leak is near the junction of the oil pan gasket and rear main seal, but it appears to be forward of the rear main seal. We pulled that little cover on the tranny just below the junction where oil would pass if the rear main was leaking. Nothing in there was wet. There was no fluoresce in the region nearest the rear main seal. That rear main seal was replaced with tranny rebuild about 35K ago; should be okay. We saw a little of the same at the front of the oil pan, but less. So verdict is move forward with oil pan gasket replacement. Fingers and toes crossed.
Tranny ATF oil temp gauge, sensor assembled into NPT extender and into black 6AN T-fitting. Overheat alarm will be secured to back of gauge with mounting tape. The gauge bezel will attach under the dash with Gorilla Grip mounting tape roughly under the AC/heater controls. The alarm wires are so small that I rigged a way to secure them permanently so that they are not exposed. The wires for it to the overheat light and ground will also secure there but not endanger the small wires.
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The black T-fitting with temp sensor will be inserted to one of these custom 6AN tranny cooler lines...whichever is output from the tranny.
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New silicone vacuum lines. I pulled all the OEM and went to work. I hope I remembered where they all go. Just kidding; one at a time. Lord knows I've probably done things that stupid in my life. Still need to work on the larger diameter lines.
Success! Gauges and Low Oil Pressure Alarm Project Complete.
Got the Cruiser back this morning so that I could work on cable management, mounting, etc.. I have photos and two videos for you.
This photo is of the sender cluster created to accommodate two additional senders at the OEM sender location under the oil filter. The adapter came from GlowShift...the only place I could find a 1/8 BSPT/1/8 NPT adapter. On the left is the sensor/sender for the new aftermarket GlowShift oil pressure gauge. On the right is OEM oil gauge sender. At bottom is the Holley 5 PSI low pressure sender/switch. The purple ground spade cover is to prevent the use of that spade. It was used unknowing that it would fry the OEM dash oil pressure gauge. Used gauge on the way.
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Here are the two new gauges. On the left is oil pressure. On the right is auto transmission oil temp.
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The low oil pressure alarm is designed as an emergency shut down alert in the case of a catastrophic oil pressure/system failure such as the oil gallery plug blowing. The first video is the system "test" at start up. As soon as the key goes to ignition, the alarms sounds. It goes out about immediately at start up with the rise in oil pressure.
This video demonstrates the alarm as the oil pressure decays below 5 PSI.
Pretty cool, huh. Tomorrow I'll run a test drive up the local mountain a ways to see how ATF temp does.
I'm sure you could find a way to do that. Problem with that is...how will you confirm the integrity of the system on a regular basis? It kind of defeats the purpose of protecting you and providing peace of mind that you have that protection. Murphy's Law would certainly be tempted to strike if that was neglected after going to the trouble of creating the alarm system.I wonder if you could add a delay relay on initial startup so you didn't get that alert every time you start the truck?
I looked at these but did not use it or a relay. I wasn't confident that the buzzer would be loud enough or unique enough. When that sucker goes off, I want there to be no misunderstanding of what it is. I kind of train myself with that sound to react quickly wherever I am, should it go off. Yep, probably overkill, but I'm down with that. The cheap alarm/siren I used is loud as s***e! lol I actually customize that with a single layer of simple tape over the exit hole.