Got one for the troops,,,,,,
Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Shops, Barns, Varmints, and Trucks
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URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=175407
Printed Date: 19 Apr 2024 at 12:30am
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Topic: Got one for the troops,,,,,,
Posted By: desertjoe
Subject: Got one for the troops,,,,,,
Date Posted: 24 Oct 2020 at 5:34am
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Well,,,I gots the 454 in The black Beauty Silverado finally all lashed up and running good. Engine Sounds great and holds 65-68 # oil pressure at idle after warm up. I'm gettin antsy bout gettin it on the road for a good shakedown cruise,,,,,,,,  There IS one little thing tho,,,,,, The little 305 that was in there had a one row radiator that I felt would not be big enough for the bigger engine so,,I latched onto a 4 row ALUMINUM out of a 1990 Suburban that is 2" shorter than the original radiator but 6" longer than the original. I used the shroud from the original radiator and it does not cover the 3" on either end,,altho,,I did modify the top of the shroud to cover the 2" open space. I installed a new fan clutch as well. Also New 185° thermostat. I had replaced the original water temp and oil pressure gauges with mechanical gauges as the original ones were not working. I fired it up and let engine run til the temp gauge read a tad over 200° and finally chickened out and shut it down when it got to 210°,,,,,,, Now,,I figure since engine is new and tight clearances is generating more heat,,,but I'm not too comfortable it running at that high a temp,,,,,,? I then added a 16" electric fan in front of the radiator,,but engine still wants to run at 205° with a 185° thermostat,,,!!!??? It does have a 50/50 water/antifreeze mix. I'm thinking bout gettin some of that additive that helps engines run cooler but cannot remember what the name was. Has anybody got any history on that stuff and is there any concerns with using it,,???
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Replies:
Posted By: jaybmiller
Date Posted: 24 Oct 2020 at 6:02am
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185* stat ?? I was thinking 160* would be 'normal' for most engines ?? i wouldn't run for long periods. ? did you flush/test the rad before install ?? ? new water pump ?? ? fan close to rad ?? found this real quick with google '454 thermostat'... https://www.67-72chevytrucks.com/vboard//showthread.php?t=722088" rel="nofollow - https://www.67-72chevytrucks.com/vboard//showthread.php?t=722088 seems 1/2 run 160, others 195.... still DARK here, grr.... Jay
------------- 3 D-14s,A-C forklift, B-112 Kubota BX23S lil' TOOT( The Other Orange Tractor) Never burn your bridges, unless you can walk on water |
Posted By: fixer1958
Date Posted: 24 Oct 2020 at 8:18am
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Big blocks run hot anyway. I would think a 4 row would handle it. If you have access to a infrared thermometer, check the radiator and see if you have even temp across the entire thing. Temp gauge accurate? |
Posted By: desertjoe
Date Posted: 24 Oct 2020 at 9:25am
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Guys,,Many thanks for all the tips,,, Yes, Jay new water pump. I checked out the link and was interesting in that one dude states the advertised temp rating on a new thermostat is the "Opening Temp" and the actual would be 10-15° above that,, What's the idea on drilling a small hole in the thermostat??? I'ma gonna put a 180° thermostat in it today. Hey Fixer,,it good to hear from you,,!! I'ma check if Oreillys has a temp gun loaner as I DID reverse flush the radiator and it was very clean to start with. The only'ist thing I might of done is to go buy the btm half of the shroud for the Suburban aluminum radiator as it was tore up is why I used the shroud that was with the 305 raditor,,,????? The 305 shroud does fit flush against the aluminum radiator,,,but does allow the OUTSIDE 3" on each end to be "un-shrouded",,,,Ya think?? I think the stuff I was lookin for is called "Water Wetter",,,,??? Has anubody ever used any of it,,?
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Posted By: jaybmiller
Date Posted: 24 Oct 2020 at 9:43am
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I've always thought the 160,180, 195 number was the 'begins to open up at' temperature, so I'd use a 160, maybe a 180. never had a 454 but to me anything over 180 could be a 'problem'. you don't need additives... 50/50 worked 100 years ago, should be fine today.... the shroud should duct the entire rad.... Jay ------------- 3 D-14s,A-C forklift, B-112 Kubota BX23S lil' TOOT( The Other Orange Tractor) Never burn your bridges, unless you can walk on water |
Posted By: LeonR2013
Date Posted: 24 Oct 2020 at 2:05pm
| Joe, My bro. put a fairly warmed up 455 pontiac engine in his 1950 GMC 3/4 ton pickup. He anticipated a heat problem so he took it to a shop in KC and they built him a radiator that took care of the problem, even pulling his goose neck camper where ever he wanted to go. He had added a 3 speed Brown-Lipe behind a late model 4 speed. (I think it was a spicer) So the engine wasn't screaming. Anyway it never heated. Leon |
Posted By: Thad in AR.
Date Posted: 24 Oct 2020 at 2:14pm
| You only get the cooling capacity the size of the fan without a proper fitting shroud. Make the shroud go full width or repair the other shroud. Fan should be correct size for opening of shroud and fan blades should be half in and half out of the shroud opening. |
Posted By: steve(ill)
Date Posted: 24 Oct 2020 at 3:39pm
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and the temp of them motor when SETTING is determined by the FAN, not the thermostat. Like Thad said, the shroud has to FIT and the fan has to be running.. If you have a THERMO fan, when does it kick in ?? Now running down the road you get RAM air thru the radiator... Then the thermostat will control the temp... Fan is doing nothing when going 60 MPH down the road. ------------- Like them all, but love the "B"s. |
Posted By: desertjoe
Date Posted: 24 Oct 2020 at 9:22pm
Well,,Chit,,,,,  somehow I KNEW somebody was gonna tell me bout the dang shroud havin the finger pointed right at it as the possible culprit,,,,, As a fact of the matter,,,I did notice today that the fan does sit mostly inside the shroud and I knew that the fan is supppossed to sit half in and half out of the shroud opening in order to be able to PULL air thru the radiator,,,I have no idea WHY I did not notice that before,,,,,,, I'ma have to go visit my Friend, Charlie the Junk Yard guy to see if he has a good bottom half of the right shroud as the btm half of this one was trashed out. The top half is perfect,,,AND,,,AND,,the depth of the shroud opening to the back of the shroud will place the fan right where it should be. The 305 shroud is longer from opening to the back so the fan does set too far into the friggin shroud,,,,!!!! I had no luck locating the right piece on Ebay or amazon so hopin ole Charlie gots one,,, Many THANKS for all the help,,,,I LOVE You Guys, I'll send some of my special blend of Black Label to Hutch for all ya'll,,,,,,
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Thad in AR. wrote:Posted By: shameless dude
Date Posted: 24 Oct 2020 at 11:11pm
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454's do run on the warm side. the 454 in my motorhome has 2 electric fans besides the regular fan, it also has a heat temp alarm if it gets to a certain temp. that shroud covers all the radiator that it should. i put a 327 in a '54 Chevy pickup, i used the radiator that the truck came with for the 6 cyl. there was no shroud on it, and the fan was back about 4-5 inches. i put a racing fan on it and never had an overheating problem with it. can get them in fiberglass or aluminum. |
Posted By: shameless dude
Date Posted: 24 Oct 2020 at 11:12pm
| oh....and the Chevy/Allis has the original radiator on it too with an electric fan in place of the original. |
Posted By: desertjoe
Date Posted: 25 Oct 2020 at 4:50am
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Well,,,Iknow I'ma gonna have to do something as the current sitiation ain't gonna cut it on this trk,,! My little HHR runs at 195-197°whether it sittin idling or goin down the hiway at 75MPH,,,summer or winter. SOoooo,,,I'ma gonna get the correct shroud and make sure the fan is centered in the inlet of the shroud,,,,,, I still got to re-assemble the dash as I had to install some new Bosch Temp and oil pressure gauges into the original gauges place,,,WHEW and DANG but was that a job,,!! I had to make 4 new mounting brackets to make the new gauges fit in the dash just like the original ones did. Wow,,Shameless,,I guess the farmer that built the Chevy Allis was plannin for all them parade miles goin along at 2-3 miles an hour and sittin there idling for long periods of time in those hot summer months,,,,
I got this feeling that this winter you gonna get chit full of them cold Nebraska days and nites and plan to come visit and just don't you forget to load up that Chevy Allis when you do,,,,I'm just bout to hit the fini mark on the Black Beauty Silverado,,,SOOoo,,I'ma gonna be needin a "fall Back" Project for when I run out of things to do on the Lambo 55,,,, I been moving out all that CHIT I been storing inside the car and It is fixin to be the HOT project soons I finish the overheatin issue on the Silverado.The same dude that painted the 55 is painting the hood of the trk and he's just bout done,,,so that project is almost fini,,,,,, |
Posted By: Thad in AR.
Date Posted: 25 Oct 2020 at 7:56am
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Joe I’ve been thinking about this. I’d also recommend using a temp gun on the radiator. I’d also be checking the thermostat and timing and read plugs for a lean condition. Easy to get differing gauges and easy to get faulty parts now days. I’m already on my 3rd fuel pump and 4th starter on my ole Ford since the engine swap. Fuel pumps were pure junk different brand 3rd try. Starters have very poor castings and starter drives strip out within a few months. China junk |
Posted By: Dakota Dave
Date Posted: 25 Oct 2020 at 10:36am
| The 454 in my suburban has two electric pusher fans in front of the radiator and the belt driven waterpump mounted fan. It factory with the K2500hd. Thermostat is 190 and it constantly runs at 200 to 210 on my guage. They stopped putting low temp thermostats in many years ago. Engines running hotter get better mileage and produce fewer emissions. Water wetter is the product your thinking of. Your running 15 psi coolant pressure so you'll need to get to 270 deg before it boils over. As long as your running in the 200 210 deg range the extra fans don't even come on unless you turn on the AC. My second fan comes on at 220 and the third at 240. |
Posted By: LeonR2013
Date Posted: 25 Oct 2020 at 3:34pm
| Joe, when you're running that hot and you pull in to park let the engine set and normalize for a bit. Kinda of a pain but necessary. Leon |