OK....

some background... Originally I installed a Black magic fan on my TII and a Koyo Rad and an FMIC.. but the damn thing always ran hot with the E-Fan, so i switched back to the stock fan, figuring that the FMIC was causing airflow problems.... But, others have run similar setups with no over heating problems...

and YES, i have the belly pan installed and the foam under the cooler and radiator...


Well.... I was out on the highway sunday in 45 degrees and i noted that my temps would go up the longer i ran at 80 MPH... not a lot, just over 190.. but when putting in town, they were lower... HMMMM something is kinda screwy here..... that should be enough wind to keep the temps undercontrol...

SOOOO..... I hit the oil cooler with the Raytec lazer thermo.... the oil cooler was reading about 140 degrees.... the LINES, in and OUT, were reading over 200.... something is not right with this picture......

Me thinks the bypass pellet in the oil cooler is funked up.....

I'm going to take it out and do the test on it... IE stick it in an oiil bath and heat it up to 160 and see if it pokes out at least 5mm.... however,

Anybody know how to shim the bitch up to make it NON-bypass???? AND, is this a good idea or should i go fork out the money for another one... if they even have it.....

 

It's pretty simple to do.

Remove oil cooler from mounts - this requires removing the two oil cooler lines from the oil cooler, which will help - see below.

Once the oil cooler is removed, remove the big bolt on the underside of the oil cooler.
This should reveal the bypass oil pellet.
Once removed, you should see the bypass hole.
Going through the hole with the big bolt and the top oil cooler line hole, you should be able to install a bolt - flat washer - (oil cooler) - flat washer - nut combo to seal it permanently.
I keep thinking it's an 8mm hole (12mm head), so you can grab some spare bolts, nut, and washers from the car if you have extras laying around.


-Ted

 

I don't think this would be a very good idea to have it open all the time. If you do that it'll take longer to get your oil to op temp since it'll be flowing through the cooler all the time. Not only that but in the winter time or late night or other cold air situations, the oil will continuously be flowing through the cooler and it might never get very warm.

 

There's a procedure in the FSM for checking the thermal bypass.

 

I think iu get what your saying Ted... run a bolt down through from the top, with a washer under the head so that it plugs off the bypass hole and then run the bolt on through and out the bottom of the oil cooler until its snug and the washer is seated over the internal hole... then finish it off by putting a washer an nut on the outside to lock it down and further seal it from leaking.

I know it will take longer to heat up...

but i highly doubt that the oil temps are going to drop below 160 (the plugs opening temp) even if it gets down to 40 degrees (i don't drive the car in the winter)

 

i had it bypassed but then i went back to stock thermostat setup and installed other oil cooler, much better now