That’s some serious corrosion.
God I hate my phone … if you only knew how much auto correcting I need to correct to each post … even a properly spelled word can be changed to another word completely, without a typo … ugh.
Improving the cooling on our TJs
- Thread starter TexasTJ2004
- Start date
God I hate my phone … if you only knew how much auto correcting I need to correct to each post … even a properly spelled word can be changed to another word completely, without a typo … ugh.
Jcrubicon
Member
Sounds good to me let’s keep this scientific as possible guys I get that many of your jeeps cool fine but bring actual data to compare not just (my gauge say so) plug in a scanner read the actual temps tell us what your jeeps cooling system is don’t lie to try to make your look better that helps nobody but your ego I’m trying to build a reference for all Tj owners.
I don't see steel freeze plugs fail routinely either, do you?
You live in AZ, which isn't exactly the capital of the corrosion world.
I'm not worried about you using brass if you aren't. I prefer my plug to match closer to the block's material. No seizing issues to report and I'm not in danger of the bit stripping out the plug.
Accurate numbers from a legit gauge don't lie. I'll take them over your guessing and less useful pattern awareness (bc the gauge is all over the place and has latency built into it).
Got it. I'll make sure to pay attention to that if I get one.
I'm nothing more than a tinkerer who likes to learn and share what I find.
I'd have to follow up with you later on this bc I can't do this until I take a CA exam next month. I really hate fighting the thermostat during install otherwise I wouldn't be so hesitant. I don't mind paying for the item. I'll have good data logged on my current setup when I drive to and back from CA at the end of July. Maybe I can play with the RS thermostat after I get back in August. Feel free to DM me so this doesn't get lost to history.
Yea the Mopar locked up, while the USMW I purchased to replace it was loose from the go. I put the 2791 Hayden in and all has been good since February.
I've seen the differences in thermostats by watching the needle as well. So it's pretty good for being consistent with when the Thermostat opens from what I recall.
The issue is that I've seen my temps on the gauge look very different than what the stock gauge reports. There's no pattern to it bc the needle both under & over reports depending on the moment. Sounds ridiculous, but I've personally seen it many times.
I consider the stock guage to be a "things appear to be ok" gauge. Which is great for folks on the road who need to know that they are good. But not so good when comparing TJ to TJ performance because we are all seeing different patterns unless our gauges are accurate.
Jcrubicon
Member
Ok 1 hour of idling a heat soaked system now here is what I have 224 on the digital gauge 97f outside temp on the meter and 6.3 mph reading on grill opening
Would you mind comparing to CFM? I don't have MPH as an option on my device.
Correction: I have mph...I'll log both.
Update:
Taking MPH and CFM, but I'm taking engine bay's reading in front of the pressure sensor on the AC line since there's not enough room for the device at the thermostat housing.
Jcrubicon
Member
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So what do you do when the 8mm square becomes round? Asking for a friend.
You know there ARE computers that are a lot easier to deal with. Just sayin'. You don't have to deal with the nuisance of a PHOOOOOONNE!!
I have a steering cooler in that area, so I measured from in front of my finned cooler.
Note: I went back and measured from the top where you measured from and the numbers were the exact same compared to the numbers I pulled from lower in the grill.
Keep in mind that we are using different devices, I have two coolers in the grill, and it's 105* and sunny where I am.
I'm using a Mopar fan and Hayden 2791 fan clutch.
Engine cold: 4.88 mph / 4569 CFM (grill)
Engine cold: 4.88 mph / 4994 CFM (engine bay)
195* Idle: 4.53 mph / 3913-4241 CFM (grill)
195* Idle: 4.53 mph / 3913-4241 CFM (engine bay)
210* Idle w/ AC: 4.53 mph / 3913 CFM (grill)
210* Idle w/ AC: 4.83 mph / 3913 CFM (engine bay)
The weather app says it's 105* outside, but the Jeep says otherwise.
Before AC
After AC
Try packing a little bit of paper in the female square to remove the slop at the rounded area...but not so much that you can't get the male square in.
Jcrubicon
Member
700-730* (AC off)
710-740* (AC on)
ECTs were 199* when these measurements were taken.
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This is about what I see as well with the OEM fan. In hotter conditions the temp creeps up to 230 at idle. Highway temps are 205-210 depending on speed.
Jcrubicon
Member
Yeah my oem fan would have probably had my temps 10degrees warmer based on my experience. Maybe I’ll swap my fan again and get some speed measurements on the oem and see how it compares to the 19in derale
Yea, THIS is a problem. You can try cramming a 3/8 extension in there. Put some penetrating oil in there like PB Blaster, or my favorite “Mouse Milk”.
Ya know, grew up being into computers, building, gaming, nerding out, etc I dumped owning a PC about 8-10 years ago. With just my phone I been able to do everything I need! Buying homes, cars, stocks, research, BS’ing on forums… you name it.
Just used some mouse milk on a seized fitting yesterday. It holds up well in higher-temp situations (should work well on engine block plugs).