Author	[Modern View]
John Fulton 07-20-2012 08:47:37 67.142.174.20 Report to Moderator	Finally, after working on my '47 H since winter, I got her started up. She runs fine, but runs so hot after just 5 minutes that the gas in the carburator was steaming, muffler was nearly red hot. I pulled water pump, it looks fine. New gage shows plenty oil pressure. Any other ideas? [Reply]   [No Email]
SDE 07-21-2012 08:56:17 174.124.39.190 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to John Fulton, 07-20-2012 08:47:37   Some cars will need to be parked with their nose in the air to get the trapped air out of the block. You might try parking your H in a ditch and see if your system has an air pocket in it. Simple things first SDE [Reply]  [No Email]
El Toro 07-21-2012 08:55:51 108.3.148.85 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to John Fulton, 07-20-2012 08:47:37   When the engine gets hot touch the bottom hose lightly to see if its hot. If it doesn't feel real hot your radiator probably needs to rodded out by your local radiator shop. I would also look at that thermostat to see if its stuck closed. It may be blocking any coolant circulation. Hal [Reply]  [No Email]
david G 07-20-2012 20:08:09 205.215.206.18 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to John Fulton, 07-20-2012 08:47:37   I am on board with RHTX55, there are probably multiple issues here. [Reply]  [No Email]
Super-H-Mike 07-20-2012 20:05:37 76.164.144.181 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to John Fulton, 07-20-2012 08:47:37   He says it ran smooth, to me that rules out way late timing and extremely lean mixture. Either would have to be crazy off the mark to cause what he is describing. Has to be cooling system related I figure... [Reply]  [No Email]
Super-H-Mike 07-21-2012 06:38:07 76.164.144.181 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to Super-H-Mike, 07-20-2012 20:05:37   Thought about it some more, to get the muffler going almost red hot makes me on board with late timing too as a possibility. But, are you sure it runs smooth, as in normal smooth? Like Pete says, they will sound like its strugglin and lack power. [Reply]  [No Email]
rhtx55 07-20-2012 19:27:55 207.119.47.163 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to John Fulton, 07-20-2012 08:47:37   First I would take a water hose & flush the radiator out towards the front. If a lot of "mud" & trash come out, then it is possible not enough air was being pulled through the radiator. Check the fan, watch it as the engine is cranked over to be sure it is pulling air through the radiator from front to back. Check the tightness of the fan belt, it may be slipping a little. Fill the radiator with water with the front wheels elevated enough to bring any "air" trapped in the system up to the radiator, run it at half throttle with an accurate hand held temp gauge in the radiator neck. I would remove the thermostat completely and test run again, check for coolant flowing across the top radiator radiator tank with a flash light, if it does not flow it is possible the impeller in the water pump is in backwards, or is the wrong one for your application. If it flows visibly, then the water pump is ok. Replace with the correct thermostat from IH. Test run again and if after all this it is still getting too hot, it's time to pull the water jacket off the side of the engine & clean out the residue ( rust etc.) from around the sleeves & block. Then remove the water pump & verify everything is according to the manual. If it is running hot enough to make the manifold cherry red, there are mutiple issues, you have to work through each & every possible cause, including how the timing & carb should be set. Time to get some experienced help !! This post was edited by rhtx55 at 19:31:03 07/20/12 2 times. [Reply]  [No Email]
davediehl@hotmail.com 07-20-2012 18:56:10 173.30.211.28 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to John Fulton, 07-20-2012 08:47:37   I would start at the thermostat. 28 bucks at napa and its a good idea to change it just to get the crud out. Pry it out and replace with a fresh gasket. I had to make mine. Never run without one on place, the water will circulate faster than it can cool. Then set your mag at top dead center. There are videos on youtube that will show you how. Then check fuel mixtures, lean runs hot, rich runs black smoke and sputters. Smooth plus a quarter turn on the setting. [Reply]  [No Email]
David G 07-20-2012 17:41:19 205.215.206.18 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to John Fulton, 07-20-2012 08:47:37   Why don't you hold on before taking anything apart. Can you answer some questions. You said it is HOT, but the coolant showed cool and the manifold was red hot. Please explain what that means. You said timing is OK, is it a mag or dist, and how did you time it. What ALL did you do to the motor? Thanks, [Reply]  [No Email]
pete 23 07-20-2012 16:35:53 74.32.238.2 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to John Fulton, 07-20-2012 08:47:37   Like others have said, you don't time an engine that has a magneto with a timing light. Only reason to do that would be to check to see what actual spark lag you have on that magneto. Most run 35 degrees on an H 4 mag on an H farmall. You time it to snap just after top dead center and that is it. Now, there was a special impulse coupling made to acomodate fire crater pistons that had about 22 degree advance. Also, late timing will make engine sound like it is pulling a plow and of course run hot. [Reply]  [No Email]
jbp 07-20-2012 14:25:41 64.57.160.158 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to John Fulton, 07-20-2012 08:47:37   Does your H have a magneto? If it does and you used a timing light to time it, it would be about 30 degrees too slow. A magneto goes to full advance as soon the impulse coupling quits clicking. A red hot muffler in five minutes is certainly an indication of retarded spark. I also have a 47 H and it has a magneto. Joe [Reply]  [No Email]
mkirsch 07-20-2012 12:22:15 64.80.110.74 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to John Fulton, 07-20-2012 08:47:37   Timing is right on... measured HOW? Just thinking here, if you did it by timing light it may be nowhere near "right on." [Reply]  [No Email]
John Fulton 07-20-2012 13:17:47 67.142.174.24 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to mkirsch, 07-20-2012 12:22:15   Timing checked with timing light. [Reply]  [No Email]
Super-H-Mike 07-20-2012 11:36:24 76.164.144.181 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to John Fulton, 07-20-2012 08:47:37   Dang that WAS hot ! My vote is air pockets also...in the cooling system. Fill coolant all the way up and let her run til just starting to get hot again, shut it off and let stand 5-10 mins.,It may push some coolant out but dont worry about that, refill the radiator and repeat the process several times til it is fully bled out and circulating normally. If that doesnt work, its not air pockets. T-stat wont open and pump cannot pump with air in the system.Start with the simple stuff first . [Reply]  [No Email]
John Fulton 07-20-2012 13:29:07 67.142.174.24 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to Super-H-Mike, 07-20-2012 11:36:24   Coolant was full in both radiator and block, as evidanced when i DISASSEMBLED FAN AND WATER PUMP ASSYMBLY. Thermostat also appears fine. [Reply]  [No Email]
dej(Jed) 07-20-2012 10:43:02 141.189.251.1 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to John Fulton, 07-20-2012 08:47:37   Quoting Removed, click Modern View to see Radiator is plugged........ [Reply]  [No Email]
MN Scott 07-20-2012 10:01:14 69.179.24.228 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to John Fulton, 07-20-2012 08:47:37   Might be running lean. Make sure your carb is clean, intake manifold gasket is not leaking. Also make sure there is no holes in intake manifold. Check the advances in your distributor. [Reply]  [No Email]
Janicholson 07-20-2012 10:00:31 199.17.55.151 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to John Fulton, 07-20-2012 08:47:37   New water pumps (or rebuilt) can have loose impellers. I have been there twice. See if there is circulation in the system before going for things not changed. Air in the block will also make issues with no temp reading, and hot operation. Jim [Reply]  [No Email]
John Fulton 07-20-2012 11:27:02 67.142.174.23 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to Janicholson, 07-20-2012 10:00:31   Janicholson, "Air in block", as no water circulation, or oil circulation? New (though Chinese) oil gauge reads high. Thermostat also new. However as we all know sometimes new is not as good as 70 years old!! Just look at my finely tuned 70 year young body. LOL! [Reply]  [No Email]
DonR of Mn 07-20-2012 08:52:43 204.248.127.193 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to John Fulton, 07-20-2012 08:47:37   Check your timing. [Reply]  [No Email]
John Fulton 07-20-2012 08:59:19 67.142.174.20 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to DonR of Mn, 07-20-2012 08:52:43   Timing is right on, Don. Thanks. But it was right on before I took water pump off. And she ran smooth, just VERY hot. [Reply]  [No Email]
charlie M 07-20-2012 08:50:48 74.41.94.226 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to John Fulton, 07-20-2012 08:47:37   Maybe thermostat is froze closed. I had that happen on a 300U by just shutting it off to go to supper one time. [Reply]  [No Email]
John Fulton 07-20-2012 09:00:53 67.142.174.20 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to charlie M, 07-20-2012 08:50:48   Charlie, I have water neck off, I will break apart and check thermostat. Thanks [Reply]  [No Email]
John Fulton 07-20-2012 09:01:55 67.142.174.20 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to John Fulton, 07-20-2012 09:00:53   BTW, temp. gauge did not register hot. [Reply]  [No Email]
GordoSD 07-20-2012 14:48:19 64.33.250.162 Report to Moderator	Re: Farmall h running HOT-HOT-HOT in reply to John Fulton, 07-20-2012 09:01:55   Check the tube from the block to the gauge. It siunds to me like it is your water pump, not circulating the coolant. You say you rebuilt it, Why? Did you have any parts left over? [Reply]  [No Email]