Engine Running Warm Under load |
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Cinnabear
Member Joined: 21 May 2018 Location: Montana Status: Offline Points: 111 |
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Posted: 11 July 2018 at 3:39am |
Been working away on the Willys and noticed under any load the temp gauge clims about 2/3 of max. The plugs are NGKs, the next hotter step from stock. I realize hotter just means they dont cool down as fast, could that be a contributing factor? Also, radiator overflow is just draining out onto the front diff, has anyone added an overflow container to the L-134? If so, what did you use and where did you put it. |
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1947 CJ-2A Willys
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Ol' Unreliable
Member Joined: 25 Sep. 2016 Location: CO Springs CO Status: Offline Points: 4226 |
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Is your radiator cap the kind that opens up to allow the coolant to go back into the radiator when it cools down? Then you can use pretty much any container to catch the coolant. I use an old apple juice bottle sort of tied to a bent rod that just hooks under the front of the battery tray. If your radiator cap isn't the recycling type, you may have just been over-filling your radiator. The coolant is going to boil out until the coolant finds its own appropriate level.
I would just use the recommended spark plugs. Champion J-8 or whatever. |
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There's a reason it's called Ol' Unreliable
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Cinnabear
Member Joined: 21 May 2018 Location: Montana Status: Offline Points: 111 |
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Makes sense, theres a port off the passenger side of the radiator with hose attached, just below the cap....it drains out the bottom of the engine compartment onto the front diff. Yeah I pulled a plug today, no oiil on it, seems fine....but its an NGK, one step hotter than stock. Gonna grab the J8Cs tomorrow and see what affect that has. Thanks Man!
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1947 CJ-2A Willys
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3A Steve
Member Joined: 10 June 2016 Location: West Virginia Status: Offline Points: 876 |
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Was looking for an overflow tank set up and found a posting saying that using Water Wetter dropped their temperature 25 degrees. Ordered some from Amazon and tried it out a couple of days ago. It dropped my temp 20 degrees. I think I will quit trying to keep the radiator full and watching it run out when the temp goes up. Used to run in to town about 10 miles and on the return trip my engine would read about 210 and start pinging as I hit 55+ mph on one long flat stretch. Doesn't go over 190 now and doesn't ping. Don't know if there will be long term negative effects but can't see why there would be.
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Gil
Member Joined: 29 July 2016 Location: N.B.Canada. Status: Offline Points: 975 |
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Rich I installed a overflow tank and it’s working great .You can check in search under “Rad overflow “
I have the cap number that I used and the tank I used.Over 1000 Miles with no more problem.I did not have to had any more water.I went at a radiator shop and that the cap they told me to try.Hope this helps. Giles
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1946 cj2a 59108
1998 Jeep Cherokee 2 doors 2016 Jeep Cherokee TrailHawk |
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drm101
Member Joined: 12 Dec. 2012 Location: Clarkston, MI Status: Offline Points: 1468 |
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Running a hotter plug could result in the plug not pulling enough heat away from the tip and/or ground electrode allowing them to get hotter than a lower heat range plug. A plug that is too hot will either erode too fast, or cause pre-ignition in extreme cases. My guess is that 1 range hotter isn't going to make much difference on an old Willys and I doubt it would make the engine run hotter unless you have pinging or pre-ignition that drives the engine temp up.
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Cinnabear
Member Joined: 21 May 2018 Location: Montana Status: Offline Points: 111 |
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I think I'm gonna flush the cooling system, the coolant looks a little brackish. Refill with coolant and water wetter...test it it for effectiveness. With the temp hitting 225-230 I'm a little worried adding a 7# radiator cap to the equation. As far as the plugs go, I dont notice any pinging, but I'm still trying to dial in the timing as there are no marks on the flywheel (I've tried all four cylinders. Headed to the big city tomorrow to grab a vacuum gauge, will hopefully get it timed using that method.
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1947 CJ-2A Willys
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Cinnabear
Member Joined: 21 May 2018 Location: Montana Status: Offline Points: 111 |
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Dumped some water wetter in there, we'll see how it responds. Its hitting 195F, which isnt a killer. The radiator cap needs to be replaced, so I went to Napa and he recommended a 7# cap because of the elevation (almost 7,000 ft). Of course he didnt carry anything that will fit, so its off to Billings tomorrow. Any recommendations for caps?
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1947 CJ-2A Willys
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ndnchf
Member Sponsor Member x 2 Joined: 22 Sep. 2017 Location: Virginia Status: Offline Points: 2177 |
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I don't know the pressure spec on the original cap, but be sure the radiator can withstand 7lbs of pressure. You sure don't want to blow out the radiator.
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1948 CJ2A - It goes nowhere fast, but anywhere slow.
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LesBerg
Member Joined: 09 Apr. 2014 Location: Athol, ID Status: Offline Points: 1554 |
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I found an 800ml stainless water bottle at a local sporting goods shop.
I zip tied it to the left side of the radiator, then drilled two holes in the plastic lid. One is 1/8" for a vent. The other is large enough to drop in a section of 3/8 steel fuel line. I cut the bottom end of the tube at an angle as the pickup. The top is connected to the tube under the radiator cap. I should also say that I have a stock style replacement aluminum radiator good to 20 psi. I have another mod as well that lets me run a 16psi cap that the Dauntless was designed for. It's working great so far. Edited by LesBerg - 11 July 2018 at 7:24pm |
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1948 CJ2A 157713 24" Stretch "Old Ironsides"
1st Armored Div 6th Infantry Reg 3rd Infantry Bn Headquarters Company #161 rubigo in quo speramus - "In Rust we Trust" |
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Cinnabear
Member Joined: 21 May 2018 Location: Montana Status: Offline Points: 111 |
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Heres my cap, Napa here cant seem to find it anywhere. Does this look original for the CJ-2A?
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1947 CJ-2A Willys
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binthere
Member Joined: 29 Nov. 2010 Location: Cherryville B.C Status: Offline Points: 707 |
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I have a 53 3B and went through the temperature thing too. After a lot of searching I found a thread that say's the upper tank of the rad should only have enough coolant to cover the cores by about a 1/2 inch, otherwise it will just boil out the overflow!! After taking that advise, I haven't had to add coolant since. It's worth a try!
And the temperature runs at 180* steady.
The reason I commented is because I see in the last picture that the coolant is up to the top of the tank. Edited by binthere - 11 July 2018 at 10:44pm |
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chuck
1953 CJ3B "a fistfull of dollars" 1949 willys jeepster "a few dollars more" and a few other retirement toys |
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Cinnabear
Member Joined: 21 May 2018 Location: Montana Status: Offline Points: 111 |
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I have a new stock cap enroute (Napa #703-1419). I think my problem was adding too much fluid and the bad cap.
I really need to get the timing dialed in, but today my mission is replacing the inner and outer window seals. This Willys is turning into full time work.
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1947 CJ-2A Willys
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Ol' Unreliable
Member Joined: 25 Sep. 2016 Location: CO Springs CO Status: Offline Points: 4226 |
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I wouldn't go too high on the rad cap pressure unless the head gasket has been replaced recently. Too high pressure might cause the gasket to leak and knowing the song-and-dance the previous owner gave you, well....
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There's a reason it's called Ol' Unreliable
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Cinnabear
Member Joined: 21 May 2018 Location: Montana Status: Offline Points: 111 |
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Yeah I just ordered the stock 4# cap (Napa #703-1419) should be here tomorrow. Tomorrow is hopefully getting the inner window seals done, new cap, new shocks, and flushing the radiator.
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1947 CJ-2A Willys
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Ol' Unreliable
Member Joined: 25 Sep. 2016 Location: CO Springs CO Status: Offline Points: 4226 |
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I went with a 4# cap when I replaced my radiator 4 years ago because I didn't want to replace the head gasket or the water pump gasket.
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There's a reason it's called Ol' Unreliable
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Cinnabear
Member Joined: 21 May 2018 Location: Montana Status: Offline Points: 111 |
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Amen to that....I have enough problems.....and my Willys has a few too.
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1947 CJ-2A Willys
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