Well, I learned something else new today. Thanks
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And some more on the thermostat. The service manual spells it out very clear for the 160 deg thermostat.
"The standard thermostat on the CJ-2A and the CJ-3A is designed to start opening at 150 deg and be fully open at 170 deg". This is far different than a current pellet style 160. It starts opening at 160 deg and is fully open at 180 deg.
This is all making sense now.
And, when I get the Robertshaw thermostat I'm going to heat it up in a pot of water with the turkey thermometer to make sure it still works - it may be 40-years old!
Ha Ha! I had the same revelation. I just received the new "Racing" Milodon 160 deg. Thermostat https://www.summitracing.com/parts/mil-16400. Wow it is definitely a higher flow Thermostat. It was $24! I can see why. All brass and stainless. I will be testing things out soon.
The price was right on those Robertshaw, I bought two, in case one doesn't work.
I started poking around looking at coolant efficiencies and I found this interesting thread. It relates to a specific product, but it gave me a better idea of how little micro bubbles could form in engine cooling jackets - kind of like the little bubbles on the bottom of the pan before water boils. I can see how rough spots from the casting could be a starting point for these little pockets of water vapor.
We get smarter and smarter about less and less and pretty soon we'll know everything about nothing - kind of like a doctor today.
Water boils at 212.
50/50 ethylene glycol boils at 223.
A modern 14 PSI pressure cap raises 50/50 ethylene glycol boiling point to about 250.
With a 4 PSI cap, peeJ was getting close, (maybe 225 -230) but no burp.
https://www.evanscoolant.com/how-it-...o-overheating/
We were within 5 deg of it (Chernobyl), right at the head. The jump out and get the "LarrBeards coffee cup installed" to prop the hood, was the few degrees we needed to prevent it! A little "Air Cooling". Good call Senior Chief!
The temp gun told the tale when I got it home. It was hot 220, right at the sender, which is placed in the hottest spot of the motor. Right on top the combustion chambers. The water on the other radiator side of the housing was 190. At the radiator top it was 170. It might have steamed it right at the sender, but I think it was a ways from a spewing boil over.
I put the Milodon in last night. It runs up to about 180 then drops back to 160. Idling for about 5 min the temp creeps up to about 190 and holds. I am in a parade in a few weeks. It will be a good test. When the Robertshaw gets here, it will give me an opportunity to see how it runs as originally intended.
The Milodon will set right in the head no problem. The Thermostat housing will need to have a relief milled into it for clearance. I am going to try this also. This should help the temp gauge run closer to what the thermostat is doing. This is the way the F head is set up (and most motors).
My wife asked; “what are you doing on my stove?”
I replied; “Testing a thermostat.”
Wife; “Why?”
Me; “It’s a Jeep project.”
Wife; “Oh, I understand… .”
She’s starting to get it!
OK, I got the eBay Robertshaw thermostat today and before I drained coolant and tore off the thermostat housing, I wanted to see just what I had.
Short answer – It’s not going into my truck.
This isn’t what we hoped it would be. We were hoping for an old bellows unit that would start to open at 140 and be full open at 160. It looks a lot like a wax pellet unit – it starts to peep open a little at 160 and it’s not full open until about 190-plus.
Don’t bother!
Awsome LarrBeard! Just saved me a lot of time. The Milodon is the way to go I think. I just got back from the ice cream shop with the misses. 160 all the way there and all the way back. The low speed driving still seems to creep up but, nothing like before. Definitely a big change for the good. I am going to keep it in. I will confer the Robertshaw to the "Alter of Willys" in the shop.
Well tell the misses... "It's a Jeep Thing"!
Wow! In the first show the little CJ3A "peeJ" is entered in, it comes home a first place winner! small show, 170+ cars. Still a nice showing for the little Jeep. Good parts and great help.
I have to say a huge thanks to this web site and, KW for the parts. Definitely a big part of this project.
Great news! It was all on your excellence in execution on the restoration. She is a fine looking Jeep! You, LarrBeard, and Ira have made your Heeps into Jeeps once again. Before too long, you'll have to build a shelf for all of your trophies. Ours would win the "Most Likely to Need a Tetanus Shot" award.
Congratulations!!!
Congratulations on making it front and center to the Willys Jeep Life page!
https://blog.kaiserwillys.com/second...st-willys-jeep
CONGRATULATIONS Bob!!!!!
All your “Labor of Love” Paid off, peeJ and yourself are famous now:):)
Seriously you did a Great Job on your Jeep.
Haha!! You mean "Infamous". I think the deck was stacked. How can you miss if you run it by this web site! And don't forget, Larry has mysterious power.
Let's see..............He is in pretty tight with Amy, good point:):):)
It doesn't hurt to have LarrBeard riding shotgun through Toledo, but I think PeeJ earned it's spot in print through Bmorgil's attention to details.
I love you's guy's!
Great Jeep!
We just speak the truth. You did a fine job, and it shows. Senior Chief LarrBeard gave his stamp of approval, and that holds a lot of weight.
Just to good of weather to keep her inside any longer. Uncovered the Willys and rolled to the DQ! Perfect all the way. After setting for a bit lo and behold the famed cheap oil filter supply line (the one you can't get to behind the fuel pump) is dripping ever so slightly. I remember pelago had the same problem with a cheap hose. I hope KW is aware there is a very large bad batch of these. I read pelago was able to actually pull his apart. I also read on another forum a guy had four of them pull apart! Well I can tell you I also have a bad one. I have a new one coming from Walck's. He claims these are not the "leaky cheapies". I am going to try to find a guy who can make one once I get the old new one off. I will let you know how the Walcks line looks.
This is definitely something to watch for if you replaced that line. If that line lets go you will lose all the oil quickly as well as the oil pressure.
OK time to clean it up for the Summer. Man is this thing dusty. This will be the first wash and wax. You wouldn't think dust was so hard to get cleaned up. Damn Garage Queens"!
On Ham's '48 we put a fancy stress relieved steel line between the return port on the filter and the timing gear cover sump. It turned out not to be stress relieved enough; it lasted about three trips around town until it split out at a flare. That gave a new meaning to "oil bath" besides the air cleaner. A big oil leak plus a fan equals a mess. We did a quick get it home repair that is still there - we used a metal stub line at each end with a clamped rubber hose in the middle.
Out here in the country the farmers are always playing around and raising a big cloud of dust. Even with the car barn closed up, dust infiltrates everywhere. A cover might help, but if I want to just start the truck or make a quick grocery store run, taking it off, wadding it up, putting it back on etc. is just too big a bother. I have a fluffy duster that does a good job of just getting dust off the trruck.
That's why I'm keeping the 2A in the buff. Dust just blows off on the first trip to town.
"In the buff" I love it! I have a "knock around" for trips to the grocery store. peeJ is so pretty, I hate to think it might have to roll on a dirty road. Haha, I am sure it will get dirty at some point. I like the feather duster idea. I have a stone drive. The fine dust is everywhere.
The 2A will get the required body work before I tip over, but for now it is in its birthday suit. When the wagon is finished, then the 2A will get torn down for a major overhaul. Looking around at some other rat rod builds, and they recommend Gibbs wax to brush on metal conditioner for bare metal builds. That would beat clear coat alone because it turns dark after a couple of years.
After crawling under mine I have a whole nother appreciation for frame off nuts and bolts resto. It's the only way to be sure!
I think you will find yourself working on them either way!
Everything happens for a reason. My new oil line is leaking so I am replacing it with a "Made in USA". I put peeJ up in the air to take a look from underneath. Lo and behold the new fuel pump pivot pin has fallen out to the point it is striking the fuel pump bolt! Thank God it hit the bolt or I would have been stranded somewhere. Look close and you can see the leak and the pin! Two birds with one boulder.
That was a bit of luck through miss fortune. Sometimes it's better to be lucky than good.
Truly lucky there gm! My usual would have been for the pin to fall half way out cock in the housing, seize up and wipe out the cam lobe!
I thought only I had luck like that. If I didn't have bad luck, I wouldn't have any at all.
Uhhhh ... That's a design feature guys.
Since the bolt head will act as a retainer if the pin works out, the pin really doesn't have to fit all that tightly - it will be OK.
(Yeah, sure...)
Excellent forethought by our elders there!
I was reading a post by LarrBeard regaling us in the tale of his beautiful truck spraying oil all over his engine compartment. I thought to myself what a terrible thing to happen to such a like new super clean engine compartment. A "baptism by fire". Then I decided to dry up my last little issues with my oil lines and change out the filter for the first time since the restore. A whopping 150 miles on it. All went smooth. I had and have had trouble with that copper gasket under the filter canister bolt. The copper requires a lot of force to make it seal and a used one will never seal well. I do not like applying a lot of torque to that bolt. I have used composites but I could not come up with one "FAST ENOUGH". Oh the cost of that!
I decided to fabricate one out of some thick soft gasket material. It didn't work. Took it for a 2 mile spin. Pumped 1/2 of a quart of oil onto the underside of the hood, all over the distributor, Alternator various other parts. I got back from the ride only to see massive oil dripping from the front of the jeep to the back. Amazing the mess that causes.
Spending the day taking things apart and cleaning it all back up. Well it needed a good "dusting off" after the winter! And of course the first show of the year not cancelled due to COVID is Tuesday! I will be taking apart and cleaning for the next 2 days. I went to the Auto parts store looking for a "Willys A-1233 Gasket" for the cover bolt. On line https://www.rfjp.com/p-131-oil-filte...ket-a1233.aspx But I wanted it now and not copper! It is a 7/16" I.D. x 1" O.D. gasket. I found several assortments. I bought them all. Here we go again.
DA#@ IT!!!!!
" I was reading a post by LarrBeard regaling us in the tale of his beautiful truck spraying oil all over his engine compartment."
"Git off the rig Luke, it's gonna' blow!"
At least it's clean oil! Well, I too still have an issue under the oil filter cannister. At least one of the lines has a leak, I have oil down the distributor side of the engine and that is just about the only place it can come from.
I have metal ends on both the suction and drain side of the cannister and if I am lucky, I will have a loose fitting. If not, I have a split flare and I will need to replace either the stub end of the sump or the whole metal line that snakes back over behind the fuel pump.
I had the first show of the year last weekend and we managed to end up in the top 20 or so of the 50 awards for older than 1999 I was up to my axole in Mustangs, Chevy SS, GTO's, Camaros, 442's; but the Toledo iron did fairly well.
I always get graded down on "Engine". There isn't a cheap chrome pack for a F-134 and my engine is used to move the truck from Point A to Point B, so it does accumulate a few bugs.
Try to get one of those big old yellow-gutted grasshoppers out of the fins of a black radiator. His head, body and wings stick to the front and all of his innards go through the fan and spray under the hood. The joys of the MidWest in July.
I’m about half afraid to take mine out for a spin, every time I come back I have a new drip somewhere. It’s either a brake line, transfer case, transmission leaking by the seal on the input shaft into the bell housing or something else.
You take your time putting them together to keep this s#]t from becoming a pain in your ars later.
I hear ya TJ! Not to worry it will be fun no matter. I dread the day I get caught in the rain or worse, hit a newly paved road! Larry talking about the bugs has me terified. I live fairly close to the lake. Big flying monsters here. Many at a time. The definition of "swarms".