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| Stralis engine overheating | |
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| Tweet Topic Started: Dec 3 2012, 01:47 AM (7,983 Views) | |
| bh001 | Dec 3 2012, 01:47 AM Post #1 |
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Hi, I have a 2007 iveco stralis with a cursor 10 engine. I am a farmer in Australia and use the prime mover with a tipper trailer to deliver grain to port. My problem is that the engine overheating alarm comes on regularly, especially on hot days. I do have to drive it through the field a lot, which can suck up a lot of dust and chaff. I blow it out regularly with compressed air, and also have wrapped fly screen type material under the rad to prevent chaff from getting in, but this doesn't seem to make any difference. I think the problem is the radiator has the turbo cooler and ac condenser in front of it, which restricts air flow. I was wondering if anybody knows if the engine fan can be adjusted to come on at a cooler eng temp to help out on hot days or if there are any tricks to keeping eng temp down? Thanks. Brad. |
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| ALL-HI-WAY | Dec 3 2012, 09:52 AM Post #2 |
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the engine fan is controled from EDC via FFC, and the values are prestabilited in edc. Try too clean the wather cooler washing it with wather jet from the inside of eng compartiment to outside ( front ). Verify if the two stage of the fan is working ok. first is with comand on air and second stage is electromagnetic and is working after 95 celsius deg. |
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| bh001 | Dec 3 2012, 10:13 AM Post #3 |
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I have washed it out with a pressure washer a few times front back to front as you have mentioned. Seems to help for a bit, but soon gets hot again. Can you please explain in more detail about the two stages of the fan. I know it comes on at a certain temp, I hear it kick in just before the gauge reads 100deg. I'm not sure what you mean about an air switch. Do I have a manual switch which I can turn fan on? I have read the manual 100 times but it doesn't give me much technical info. |
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| ALL-HI-WAY | Dec 3 2012, 10:54 AM Post #4 |
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the fan is working in these way: first stage ( comand on air ) second stage ( comand electric ) that you hear kick. first stage start at ~80 cels deg. and is air arive in fan anss. air who modify a distance in the front of fan anss. and the speed of the blower is maximum ~1250 revs/min. the force is transmited witout friction to the blower by small magnets monted in the fan anss. second stage start work at 95 celsius deg. and is electromagnetic cupling and the speed of the blower is the same with the speed of the puley monted on the fan ass. I think the first stage is not working and when the second stage start to work is to late, the temperature is to high to handle. In the top of the fan ass is conected a black pipe, and on that pipe must arive the compresed air for first comand. The air arive in the pipe via the electromagnetic valve monted on traverse of the chasiss, traverse that is transversal and is before trailer coupling. Edited by ALL-HI-WAY, Dec 3 2012, 11:08 AM.
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| bh001 | Dec 3 2012, 11:39 AM Post #5 |
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Ok. Thanks. I will check the 2 stages of the fan are working correctly and report back in a few days. Thanks |
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| bh001 | Dec 5 2012, 01:25 AM Post #6 |
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Hey All Way, I checked the two stages of the fan and this is what I found; I started the truck and had it idling in the shed with cab up to look at fan and I could easily stop it with my fingers when it was free wheeling. I took it for a drive with no load to get it up to temperature. I pulled over when temp gauge was just over 80C and lifted the cab to check fan. It was still free wheeling and could be easily stopped. I kept the engine revs up for a couple minutes while stationary and got the engine to around 85-87C. Got out and checked again and the fan was in stage 1. I was turning as under some light force. I could stop it turning by wrapping an old shirt around my hand and using quite a lot of force. I let the engine cool a little and warmed it up again, while stationary, several times. I couldn't hear any noise when the fan engaged, but it seemed to work every time. It was working when engine temp was around 85-87C. Do you think this is too high? When driving back home I noticed the cruising temp was a constant 82-87C. I guess this is because the fan was kicking in and out of gear. The second stage of fan works fine because I can hear it from the cab. I'm not exactly sure what temp it engages at, I think around 95C. Does that all seem normal? My engine overheating alarm comes on when its only 33C outside and going up a slight incline. Maybe it is not designed for Australian hot weather? Your thoughts? |
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| ALL-HI-WAY | Dec 15 2012, 08:12 AM Post #7 |
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ok the first stage is ok , and i don't understood if the second stage is OK. i attached a drawing of these fan. when the second stage is working, end the engine speed is high you must hear a very much noise. if you hear the noise seems that it is working, and the cooling problems are not here. the temperature in your country is not too high if everything is ok the cooling system work ok up too 45deg cels. Edited by ALL-HI-WAY, Dec 15 2012, 08:14 AM.
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