That makes good sense. Although not as easy to get to, I suspect that one could do the same back closer to the tranny so that you are getting the hottest reading.
What hardware did you use for your sender, T, fittings, etc.?
A440f overheating
- Thread starter jmsilvr43
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What hardware did you use for your sender, T, fittings, etc.?
Ha, plumbing junk from my shed. I'll try and get a pic, though it's hard to access.
I replaced the old flexible hoses at the tranny a while back. I think that I could insert this in the line and add the temp sensor that is 1/8 NPT.Amazon product ASIN B076D43TDH
The little short rubber pipes? Yeah that would work. As long as you don't put the T in the return line. The bulb? if thats the correct word, of the sender would preferably have the atf flowing over it. So the T shouldn't be too long keeping the sender too far away from the atf if you get my meaning.
Hmmm, cannot get a pic. Would have to remove the a/c comp to see it.
It's actually a cross rather than a T. The other port is for a thermo fan switch. I went a bit overboard with the atf cooling. The fan is on the external cooler, and kicks in when it gets hot. Not sure what temp it kicks in at, but it does cycle on and off when towing or hills. The cross is something I jerry rigged out of plumbing fittings.
It's tied to the tin bash plate underneath the radiator. This is on a fj73 btw.
Another thing to remember. My T/cross is connected to rubber pipes, so I had to run an earth wire from it to the chassis, otherwise the sender won't work without being earthed. If you connect your T to the rubber pipe on both sides. it will need to be earthed.
It's actually a cross rather than a T. The other port is for a thermo fan switch. I went a bit overboard with the atf cooling. The fan is on the external cooler, and kicks in when it gets hot. Not sure what temp it kicks in at, but it does cycle on and off when towing or hills. The cross is something I jerry rigged out of plumbing fittings.
It's tied to the tin bash plate underneath the radiator. This is on a fj73 btw.
Another thing to remember. My T/cross is connected to rubber pipes, so I had to run an earth wire from it to the chassis, otherwise the sender won't work without being earthed. If you connect your T to the rubber pipe on both sides. it will need to be earthed.
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Oh goodness. No worries, but thank you for thinking about it.
I did a similar thing to control heat in mine, as you can see here. Builds - Sentimental Restoration of Family 1990 FJ62 - https://forum.ih8mud.com/threads/sentimental-restoration-of-family-1990-fj62.1095049/page-5#post-12178930 I did not find a reliable temp driven control option for the fan, so I have a Toyota switch in the dash in one of the OEM switch ports. I just turn it on manually when I start up. I also added a new Mishimoto radiator, and connected the external cooler in series with the radiator integral cooler.
The new radiator and fan/cooler combo made a big difference, but the final step was to shield the tranny from the exhaust on the left side. This made a very dramatic drop in operating temp. Builds - Sentimental Restoration of Family 1990 FJ62 - https://forum.ih8mud.com/threads/sentimental-restoration-of-family-1990-fj62.1095049/page-7#post-12231898 Amazing how much exhaust radiant heat the tranny picks up!