Postby disallow » Fri Oct 30, 2015 5:54 am
Good morning all!
Got the Pathy pretty much wrapped up last night. Still need to get get some self tapping bolts for the ones I broke and had to drill out. But looks as though I have successfully burped the system, and have taken it on 3 longer drives (more than 10 miles) while watching my Superchips for the Engine Coolant Temp variance.
First time I fired it up, the coolant temp got to 180 and stabilized. At that point, there was no hot air coming out of the vents, though, so I knew there was plenty of air in the system still. The air must have percolated to the top of the system, because suddenly the ECT spiked up to about 220F. I shut down, and topped off the rad. Started it again and ran to 190F, and shut down and called it a night. (it was 12:30am) I left the pressure cap and rad cap half way off, to allow more air to move. Also left the truck on ramps overnight.
Last night I topped off the rad before starting, and once again ran up to about 195F. Shut down, opened the pressure cap, (heard a bunch of bubbles in the rad at this point) and then the rad cap, and topped off. Did this about 3 times, then took it for a spin (about 5 miles). Got back, let it cool while I did the engine oil and transmission fluid change. Topped off again, and took for a 10 mile drive. Got home, and the level was good. Checked this morning again before heading to work, and the level was still good.
Will check before I leave work today to see if any more air has worked its way up the system, but the temp on my superchips was pretty stable at around 188-195F the whole way here (about 25 miles highway and last 5 miles city) so it looks like I've finished this task.
New fan clutch comes in next week, although after putting the old one back on, for some reason it seems quieter now. Pretty sure this is the original clutch, so will be changing anyways, along with front and rear brake pads and rotors either Monday or Tuesday. That should be the last of the stuff I need to do before winter maintenance wise.
Note that I used Honda Type 2 premix as my coolant (I had some in my garage for my other car). This is what I had in the Pathy's system before, and I've had great success with it. The old coolant I drained still looked great, so it has done a good job of keeping the system clean. Perhaps will be doing a quick PH test on it to see whether its gone acidic, and to what extent.
Thanks again SMJ for the input on the thermostat.
t