I'll definitely be adding a filter as well when I rebuild my pump (still trying to get a hold of an OEM kit). I plan on doing some light wheeling in central WA in mid June so I'm curious to see what that does for PS fluid heat.
Granted it's much different applications, but I understand a lot of...
So just for grins, I took the temp of my 62's power steering fluid (new AMSOIL ATF) after a 15 mile drive on our first 90º day of the season, about half freeway and half stop & go with turning a bunch of corners to get into my neighborhood. Stock PS system, 33" tires and just normal daily...
I'm curious how much of a difference that Derale cooler will make. Obviously more than the factory cooling loop, but I'm curious to compare what certain coolers would do compared to an "in radiator" transmission cooler like the stock FJ62 radiator when it comes to the PS system.
I keep blabbing...
It just occurred to me that I still have the FJ62 radiator in my rig and an H55F. I could just eliminate the factory cooling loop and hook the return up through the transmission cooler in my radiator, if that would actually cool the ATF in the system from its normal operating temp.....
I honestly wonder if (under normal driving conditions; ie not heavy wheeling) even just the factory cooling loop is enough for the PS system. I've run my 33" tires for three years now and just this last winter my pump has started to groan when cold. However, with 340K miles on the original unit...