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ACfarmboy24 
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 Topic: 7045 Troubleshooting
Posted: 13 Jun 2015 at 12:18pm |
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I need some insight on the 7045. It has been running real hot with a fair amount of blow-by spurts and appears to be leaking some by the injectors. Looks like coolant, maybe some oil too? I was thinking a blown head gasket, but am afraid there is something more wrong. Any ideas?
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AC 200, AC 7045, NH 4630, White 508, CIH 5600, Athens 76, AC 333, Hesston 545
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Orange Blood
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Posted: 13 Jun 2015 at 4:16pm |
Well it sounds like you have at least a couple of issues.
Overheating, and leaking injector seals. The first could cause the second, my thoughts are that it is unlikely the second is causing the first, but there may be deeper problems also.
On the overheating, how hot is really hot? Do you have the original radiator in it? Have you ever cleaned it out, meaning the metal fins may be packed full of dirt and other foreign matter. Do you have all of the original foam around the radiator, to seal up the side and top panels? Is the radiator nearly as hot as the engine when it it "really hot?" What is your coolant level? Are the coolant hoses hard, meaning excess pressure in the system? Are your fan belts tight?
Regarding the injectors, I have never had a set out of that particular engine yet, and I under the understanding they are different than the older 2900 engine, so someone will be along soon with some good info.
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ACfarmboy24
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Posted: 13 Jun 2015 at 4:44pm |
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I believe it to be the stock radiator. It is clean. No foam around the radiator was going to get some to put on. I doubt that is the one thing that will cause overheating? Must be something else too. It got so hot it fried my throttle cable. The exhaust is clean and normal no signs of coolant being burnt. Does the foam make a huge difference?
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AC 200, AC 7045, NH 4630, White 508, CIH 5600, Athens 76, AC 333, Hesston 545
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Orange Blood
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Posted: 13 Jun 2015 at 5:04pm |
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The foam does in fact make a large difference, but I don't think that will be all of your problem, from the extra information about the throttle cable. If your engine has gotten hot enough to melt the throttle resting against the outside of the block, and based on your other information above, I'd say it was well above 275*, maybe even hotter which means you are likely in for an overhaul due to scored pistons, or will be very soon. Are you certain it wasn't within an 1" or less of the exhaust manifold, or possibly just worn from rubbing, before I scare you any more?
Edited by Orange Blood - 13 Jun 2015 at 5:05pm
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ACfarmboy24
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Posted: 13 Jun 2015 at 5:10pm |
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Might've been a little close to the exhaust... I hope. I'm anticipating an overhaul anyway. Get the cooling system all gone through some foam, etc. So here is the deal breaker. How much am I looking at to have the engine rebuilt and the coolant system done? Can I get away with an inframe or is it going to need a major overhaul?
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AC 200, AC 7045, NH 4630, White 508, CIH 5600, Athens 76, AC 333, Hesston 545
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Orange Blood
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Posted: 13 Jun 2015 at 5:24pm |
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Major factor will be the labor, who will you have do it? You, or hired out?
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ACfarmboy24
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Posted: 13 Jun 2015 at 5:40pm |
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Hired out to a good friend with reasonable rates. $75 - $85 an hour.
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AC 200, AC 7045, NH 4630, White 508, CIH 5600, Athens 76, AC 333, Hesston 545
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Orange Blood
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Posted: 13 Jun 2015 at 5:52pm |
Well I am a bit nervous giving you only my opinion, some time other's perspectives reveal something I have missed. This is the internet you know. From a worst case scenario point of view.
From the sounds of it you are looking at a minimum of a complete head rebuild, valves seats ground or replaced, new Injector sleeves/o-rings.
I think you will find it is easier to do an out of frame, than an inframe, but others may see it differently, so a master rebuild kit, I know some say AGCO only parts, but we have had very good luch with reputable aftermarket parts.
Machining of the head and block, a hot tank for both.
If electrolysis has caused damage to the block in the lower sleeve area, which is common in these engine, you are looking at additional $$ to cut and sleeve the bottom bores as needed.
Depending on the hours the tractor has on it, may be time to R&R the pump, and injectors, at a minimum have the injectors tested due to the heat issue.
Your cooling system, may require a radiator recore, or just a soak.
All told you are looking at probably $5000.00 in parts and machining alone, before the labor bill, just an educated guess, but don't forget all the little pieces that add up fast, new hoses, new filters, new fluids, new thermostats, new etc. etc. etc.
We bought a 7040, same basic engine from a guy claimed a recent overhaul cost him 16K from the local Case IH dealer a few years back, and I believed him, based on what he was saying, but I also think they screwed him some also, but you at least know the ballpark.
Edited by Orange Blood - 13 Jun 2015 at 5:57pm
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ACfarmboy24
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Posted: 13 Jun 2015 at 8:32pm |
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Seems a bit steep to me. I don't think the engine is that cooked, but I guess I will find out when the mechanic takes her apart. Thanks for the input.
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AC 200, AC 7045, NH 4630, White 508, CIH 5600, Athens 76, AC 333, Hesston 545
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denny sd
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Posted: 13 Jun 2015 at 9:01pm |
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have you had the thermostats checked for correct opening and closing temps.
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Orange Blood
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Posted: 13 Jun 2015 at 9:07pm |
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It may not be that cooked, but that is also why I said it was kind of a worst case senario
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ACfarmboy24
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Posted: 13 Jun 2015 at 9:16pm |
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Right. The tractor only worked one day this year before I realized it was running too hot. It wasn't running hard either, just walking with a 14' disc. Hopefully, it just needs a head gasket and the head planed. Get the coolant system up to par too. Gosh I hope it's that simple!
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AC 200, AC 7045, NH 4630, White 508, CIH 5600, Athens 76, AC 333, Hesston 545
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Tbone95
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Posted: 15 Jun 2015 at 11:20am |
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275 Degrees?! Anything close to functioning should have been steaming out bad, from somewhere if the rad cap wasn't working! Get yourself an additional temp gauge and put it in, there's ports for it right next to where the original one goes. Cheap source of information and insurance.
Speaking from experience, the foam does make quite a bit of difference. But by the sounds of it, something beyond that is going on with a 14' disc.
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Orange Blood
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Posted: 15 Jun 2015 at 12:14pm |
 Tbone95 wrote:
275 Degrees?! Anything close to functioning should have been steaming out bad, from somewhere if the rad cap wasn't working!................. |
You are absolutely correct!! Unfortunately I have seen a couple of engines that lost a heater hoses, and the driver just kept on going, and that is when plastic on the outside of the engine such as the throttle cable start to melt. Like I said just an educated guess, it wasn't meant to be scientific, just trying to imply extremely hot, beyond operating temp. That is why I asked about the possibility of the cable rubbing against the exhaust manifold. I wasn't giving the 275* as my diagnosis, but rather that in order to melt the cable the tractor would have been extremely hot, and that items like scored pistons would also result.
In the long run you are correct I could have asked more questions first.
Edited by Orange Blood - 15 Jun 2015 at 12:24pm
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Still in use:
HD7 WC C CA WD 2-WD45 WD45LP WD45D D14 3-D17 D17LP 2-D19D D19LP 190XTD 190XTLP 720 D21 220 7020 7030 7040 7045 3-7060
Projects: 3-U UC 2-G 2-B 2-C CA 7-WC RC WDLP WF D14 D21 210 7045 N7
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Tbone95
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Posted: 15 Jun 2015 at 12:25pm |
Orange Blood wrote:
Tbone95 wrote:
275 Degrees?! Anything close to functioning should have been steaming out bad, from somewhere if the rad cap wasn't working!................. |
You are absolutely correct!! Unfortunately I have seen a couple of engines that lost a heater hoses, and the driver just kept on going, and that is when plastic on the outside of the engine such as the throttle cable start to melt. Like I said just an educated guess, it wasn't meant to be scientific, just trying to imply extremely hot, beyond operating temp. That is why I asked about the possibility of the cable rubbing against the exhaust manifold. I wasn't giving the 275* as my diagnosis, but rather that in order to melt the cable the tractor would have been extremely hot, and that items like scored pistons would also result.
In the long run you are correct I could have asked more questions first.
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I see what you mean. Kind of confusing. On the one hand, he knows it was running hot....on the other, it seems it got really hot and he's been going with it. I don't know, but your post makes total sense, I didn't mean to imply otherwise.
Edited by Tbone95 - 15 Jun 2015 at 12:26pm
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Orange Blood
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Posted: 15 Jun 2015 at 12:31pm |
Additionally, I suppose I should have asked if all of these things happened at once. I guess I assumed they did, given that he listed all of them.
If for example the blowby has been building for years, and the injectors leaking for a while also, then only recently the overheat situation, well that gives a completely different picture, than everything happening at the same time, which as I see it can only be explained with an excessive heat situation, but not true unless we know more, or are standing in front of the tractor.
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Still in use:
HD7 WC C CA WD 2-WD45 WD45LP WD45D D14 3-D17 D17LP 2-D19D D19LP 190XTD 190XTLP 720 D21 220 7020 7030 7040 7045 3-7060
Projects: 3-U UC 2-G 2-B 2-C CA 7-WC RC WDLP WF D14 D21 210 7045 N7
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ranger42
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Posted: 15 Jun 2015 at 12:49pm |
Orange Blood wrote:
Well I am a bit nervous giving you only my opinion, some time other's perspectives reveal something I have missed. This is the internet you know. From a worst case scenario point of view.
From the sounds of it you are looking at a minimum of a complete head rebuild, valves seats ground or replaced, new Injector sleeves/o-rings.
I think you will find it is easier to do an out of frame, than an inframe, but others may see it differently, so a master rebuild kit, I know some say AGCO only parts, but we have had very good luch with reputable aftermarket parts.
Machining of the head and block, a hot tank for both.
If electrolysis has caused damage to the block in the lower sleeve area, which is common in these engine, you are looking at additional $$ to cut and sleeve the bottom bores as needed.
Depending on the hours the tractor has on it, may be time to R&R the pump, and injectors, at a minimum have the injectors tested due to the heat issue.
Your cooling system, may require a radiator recore, or just a soak.
All told you are looking at probably $5000.00 in parts and machining alone, before the labor bill, just an educated guess, but don't forget all the little pieces that add up fast, new hoses, new filters, new fluids, new thermostats, new etc. etc. etc.
We bought a 7040, same basic engine from a guy claimed a recent overhaul cost him 16K from the local Case IH dealer a few years back, and I believed him, based on what he was saying, but I also think they screwed him some also, but you at least know the ballpark.
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$ 16,000.00 for a 426 overhaul? screwed is an understatement!
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DrAllis
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Posted: 15 Jun 2015 at 7:12pm |
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Whomever takes this repair job on would be wise to warm it up good and pull an engine oil sample and send it in for analysis. The claim of overheating is suspect....how hot??? actually in the red zone?? and if it didn't vomit coolant out the overflow hose, it probably isn't hot, just a defective temp gauge, which is common on these older tractors. Leaking injectors?? Injectors leak diesel fuel, not engine oil or antifreeze. Valve cover gaskets leak engine oil (common problem) and cracked cylinder heads leak coolant....if it really is coolant. Blow-by spurts??? Not sure how to tackle that complaint, other than if it isn't using oil and puffing/pulsing blow-by (indicating one scored piston/sleeve) not sure that is a big concern at this point. A good oil sample may tell a LOT.
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ACfarmboy24
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Posted: 15 Jun 2015 at 7:55pm |
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She's in the shop as of today. It had started to piss coolant out the over flow, but I caught it as soon as it happened and let it cool down. Worked it in really low gear to get the job done. Temp gauge never went into red. Bare with me I don't know much about engines as you can see just trying my best to keep an old allis in the field and out of the scrap yard! I'm thinking the water pump may be faulty that and the lack of foam caused my overheating problem. Will do the oil analysis too. Thanks Dr.
Edited by ACfarmboy24 - 15 Jun 2015 at 7:58pm
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AC 200, AC 7045, NH 4630, White 508, CIH 5600, Athens 76, AC 333, Hesston 545
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989ford
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Posted: 15 Jun 2015 at 8:00pm |
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Check your injectors, my Dad just rebuilt his 7045 and was still able to overheat it when it shouldn't have been working. Found the injectors could be installed backwards and once turned around was able to pull with no issues.
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DrAllis
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Posted: 15 Jun 2015 at 8:17pm |
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That injector thing is only if it has BOSCH injectors, which they are only a few that have them in a 7045.
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