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| Rob Morris
08-05-2012 11:42:03
69.19.14.20
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Our 1270 overheated due to a hole in the radiator. Then it began blowing water out the radiator cap. We replaced the radiator, water pump, head gaskets and had the heads reworked. It still does it. Local dealer said that the early 451s(this one is a 1972 model) were prone to block warpage and that is most likely what is wrong. I hadn"t heard of this problem with them before. Anybody else? It seems like I have a few options: sell it for scrap and look for a 2290( dual ptos would be nice), Find a 451 to replace it, could the block I have be machined or could I put a 504 in the 1270? The power shift has been rebuilt in the 1270, AC works good, cab is fair condition but we added an air ride seat. My family loves Case tractors starting with Grandads" DC. We have it, a 931, 1270,2470,2390. Kind of wouldn"t mind keepin the 1270 as I only a need a few more to fill out having one of each series!:) What would you guys do with the 1270? I need to keep the cost to a reasonable level. It will continue to be used as "daily driver" Any advice would be greatly appreciated.
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| JIM KS
08-06-2012 18:54:36
76.7.237.219
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Re: 1270 blowing water out the radiator cap in reply to Rob Morris, 08-05-2012 11:42:03
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| Freind had one doing the same thing all it was the radiator cap was not seating.
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| Ron Sa
08-06-2012 06:21:47
75.106.112.105
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Re: 1270 blowing water out the radiator cap in reply to Rob Morris, 08-05-2012 11:42:03
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| | george md has a good idea. A cracked sleeve will allow compression gasses to mix throughout the entire block and the bubbles could rise up thru all three heads according to how the bubbles find cooling fluid ports between the block and heads. If a head is cracked in its combustion chamber, the bubbles should be confined to that head. I am reluctant to buy the warped block idea on the three-head engine. Each head can individually adjust to minor surface warpage of the block.
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| rich10e
08-05-2012 20:03:48
12.185.202.2
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Re: 1270 blowing water out the radiator cap in reply to Rob Morris, 08-05-2012 11:42:03
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| Mine did that, cracked sleeve
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| george md
08-05-2012 18:42:45
209.213.167.201
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Re: 1270 blowing water out the radiator cap in reply to Rob Morris, 08-05-2012 11:42:03
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| | Rob, Remove the water manifold , and the water
pump belts. Fill engine full to top of head
where water manifold bolts on ,start and let
idle , the port with bubbles is where the
problem is. Most likely a liner , but could
be the water pump sucking air at the seal
but not leaking water out yet. george
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| 1370rod
08-05-2012 15:36:20
69.179.74.93
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Re: 1270 blowing water out the radiator cap in reply to Rob Morris, 08-05-2012 11:42:03
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| Whenever coolant is getting pushed out of the radiator cap almost 100% of the time it is because compression gasses are leaking into the cooling system. Air going in pushes coolant out. The sourse of a compression leak can be the head, head gasket or sleeve. These tractors have very little head problem, the two most likely are the gasket or sleeve. You have had the head and gaskets checked so that leaves a sleeve as the culprit. With the heads removed inspect the sleeve flange really close, the cracks can be hard to find, but if this problem has occurred after overheating it's very likely a crack is present. Good luck, Rod.
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| 1370rod
08-05-2012 15:40:26
69.179.74.93
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Re: 1270 blowing water out the radiator cap in reply to 1370rod, 08-05-2012 15:36:20
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| My first statement should have included if a engine is pushing out coolant and is not being caused by over heating almost 100% of the time it is a compression leak.
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| tomturkey
08-05-2012 12:24:01
216.81.211.253
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Re: 1270 blowing water out the radiator cap in reply to Rob Morris, 08-05-2012 11:42:03
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| warped block eh never heard that one before. Probably have to have the heads machined down to match the WARPED BLOCK. LOL gobble
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| John Saeli
08-05-2012 11:58:09
66.66.16.240
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Re: 1270 blowing water out the radiator cap in reply to Rob Morris, 08-05-2012 11:42:03
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| Never heard the nonsense of warped blocks. Besides, with multiple heads, I don't see the problem. I would imagine you have a cracked sleeve. Most likely, she's also weeping coolant into the base. Pull the exhaust manifold & look for a "washed" port, then pull that head, & investigate.
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| chess
08-05-2012 12:38:37
69.88.206.67
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Re: 1270 blowing water out the radiator cap in reply to John Saeli, 08-05-2012 11:58:09
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| Could have cavatiation hole in sleeve too.Especally if it dont have a water filter.
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| Rob Morris
08-05-2012 12:45:44
69.19.14.20
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Re: 1270 blowing water out the radiator cap in reply to chess, 08-05-2012 12:38:37
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| No water filter on this 1270. Was that an option? is there a kit available to put one on it?
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| farmboyWI
08-05-2012 18:42:18
50.105.134.45
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Re: 1270 blowing water out the radiator cap in reply to Rob Morris, 08-05-2012 12:45:44
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| When I looked for a filter kit for my 1370, it was available, but expensive! Seems like I remember two kits, one had the filter, filter base and some of the hardware, the other had the rest of the hardware/hoses/etc. Also seems like I remember them being $200- $250/kit.
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| chess
08-05-2012 17:12:00
69.88.206.67
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Re: 1270 blowing water out the radiator cap in reply to Rob Morris, 08-05-2012 12:45:44
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| There was a kit available -not sure if one is available now. Cavation is what happened to our 2390 years ago.It was on rear cylinder . Antifreze formula has been changed in later years for use in Diesel engines so filter route may not be used today.Have to admit we knew we should have installed filter but put it off too long!Unfortunately you will need to probably pull sleves to detect small hole if that is problem. Really look closely for crracked flange first as others said an that should be easy to see.Small hole will not be easy to see.
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| DKase
08-05-2012 14:08:42
75.102.180.184
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Re: 1270 blowing water out the radiator cap in reply to Rob Morris, 08-05-2012 12:45:44
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| Don't necessarily need a filter, but EVERY diesel engine needs the conditioner in the coolant so you do not develop a cavitation problem. Conditioner is available as a liquid, and test strips will tell you how much is needed. Anything is possible if you have been running without conditioner, but my guess is a sleeve since your problem started with overheating.
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| chess
08-05-2012 17:21:53
69.88.206.67
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Re: 1270 blowing water out the radiator cap in reply to DKase, 08-05-2012 14:08:42
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| Agree with you D case. Trucking co i worked for did test strip every 30000 mile oil change.Also when antifreze formula for diesel engines was changed employer bought 30 Cat powered trucks factory equiped with filters an new formula antifreze. Cat promptly advised (ordered)company to remove filters.
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| chess
08-05-2012 17:21:24
69.88.206.67
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Re: 1270 blowing water out the radiator cap in reply to DKase, 08-05-2012 14:08:42
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| Agree with you D case. Trucking co i worked for did test strip every 30000 mile oil change.Also when antifreze formula for diesel engines was changed employer bought 30 Cat powered trucks factory equiped with filters an new formula antifreze. Cat promptly advised (ordered)company to remove filters.
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| chess
08-05-2012 18:33:05
69.88.206.67
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Re: 1270 blowing water out the radiator cap in reply to chess, 08-05-2012 17:21:24
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| Looked up part for filter attatchment an it is A46453 an includes all parts needed. That is for 6cyl engines.Since you have a couple of those you might want to check antifreze as D Kase said with strips that you can get at NAPA.Than decide route to take such as new antifreze-filter-additive. Might be well spent money an save down time in future.
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