I like things that jiggle.

You need to try a factory stat in something. How cold are your winters?

 

Not when it says Mexico on it. Mid teens.

The Stant SuperStat that's been in our XJ since 12/09 couldn't be any better, ScanGauge verifies how well it works, even today......and I realize using a 180 stat spells doom and gloom, but that's just the way I roll.

I'm sure the Mexican made Mopar stat is fine, it has worked well for u just as Stants have worked well for me.

Basically I'm cheap.....the price of the excellent performing Made in USA Stant SuperStat afforded me the ability to buy a new stat AND a case of American beer for the price of the Mexican made Mopar stat alone. Peace bro.

https://www.cherokeeforum.com/f2/mop...mostat-159668/

 

They're made in Israel!! Oy vay.

 

The pic in your link in my post shows Mexico on the Mopar box......at least at one point in time they were made in Mexico, no? What's the date on your pic?

 

Maybe the ones I have were and they're fine. MotoRad of Israel now makes the 52028186 for Mopar.

 

......and one of these days after out sourcing stat manufacturing to several other countries over time, trying to improve stat quality (sorry, couldn't resist, just kidding), maybe Chrysler/Jeep will come back home. Where is home anyway, Detroit or Italy?

 

That's why I suggest a hole no larger than 1/16" in both position - it's a bleed port. It doesn't get full flow, and I've not known it to prolong warmup times due to excess coolant flow (because it doesn't allow an excess - it's really only allowing significant flow if gas has accumulated behind the thermostat.)

I've done it on vehicles made from 1968 forward without incident. Even OBD-II doesn't complain about it.

The theory is sound, and has borne up under real-world conditions.

 

Why drill any hole in the stat.......especially another 1/8" hole that is similar in size to the jiggle valve hole (see the pick in OP #1)? There's a dime sized hole 1/2" to the driver's side of the stat. Coolant flows by/around (not thru) the stat at a high rate the moment the motor starts. How is air (gas ?) not going to be instantly pushed by coolant flow by and past the stat and out the dime sized hole directly beside the stat the moment the motor is started?

Again, knocking out the jiggle valve and drilling more hole(s) in the stat allows coolant flow to the rad the moment the motor starts, thus slowing down engine warm-up. The jiggle valve does not flow anything while the motor is running and the reason for that is......quicker motor warm-up by not allowing any coolant to flow thru the valve to the rad. The jiggle valve only bleeds when the motor is off.

Why is there such an argument over the jiggle valve, and what it does, the dime sized hole a fraction of an inch to the side of the stat, and what it does, drilling holes in stats, and what that does (which is a negative) and how there can be NO coolant flow to/thru the rad, while the stat itself is closed, to provide the quickest engine warm-up?

Any coolant flow to/thru the rad, while the stat is closed, slows engine warm-up........period, as our President would say. Something that has been done for a long time cold be just as as invalid then as today.

 

Wow haha this thread kept going. Didn't mean bell housing, just wrote that too fast as I was in a rush. And I wouldn't drill out that hole, I agree that the idea is to get the motor up to the right temperature as quick as possible and then have the thermostat correctly regulate the heat. That's actually the reason I was changing mine, for the last several months it hasn't been getting up to the right heat. Mines never overheated, and in fact I live in Canada and in the winter it gets a little cold so the faster she heats up the better.

 

Also dbj, saving your cash for American beer? Spend a little more and get the good stuff, Canadian beer
I got that stat from the dealership, not too worried about spending the extra $10.

 

Never tried a "Oh-----Can-----a-da" beer (luv your national anthem)......give me a name or 2 and I'll try to find some....especially since that crappy old Stant SuperStat has lasted over 4 years and I've been able to save a little money.

Remember, the t-stat does one thing only....determine MINIMUM coolant temp, all of the other cooling system components, their condition and driving conditions, determine maximum coolant temp.