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Old Jul 31, 2011 | 05:43 PM
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Head gasket?

Hi a friend of mine asked me to look at his 2001 7.3. Its pushing coolant out the resevoir cap. I am thinking that it needs head gaskets or maybe has a cracked head. Is this common on 7.3's? If anyone has done this, how many hours does it take? Thanks!
 
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Old Jul 31, 2011 | 06:26 PM
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Is there oil or diesel in the expansion tank?
 
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Old Jul 31, 2011 | 07:25 PM
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No evidence of either.
 
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Old Jul 31, 2011 | 07:38 PM
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I would bet injector cups... What mods if any to the truck.
 
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Old Jul 31, 2011 | 08:28 PM
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No mods, but its a farm truck so had a hard life.
 
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Old Jul 31, 2011 | 09:04 PM
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Farm truck or not, Its very hard to pop a 7.3 headgasket on a stock truck.
 
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Old Jul 31, 2011 | 09:11 PM
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He has tried a new reservoir cap hasn't he?
 
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Old Jul 31, 2011 | 09:27 PM
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Installed new cap, thermostat, waterpump.
 
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Old Jul 31, 2011 | 10:17 PM
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had the same problem, with my 99 7.3 and it was the head gasket. took about 3.5 hours to pull and clean the heads. Don't forget to get them checked before reassemble, and go ahead and change the injector cups.
 
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Old Aug 1, 2011 | 03:43 PM
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Ok, thanks for all the input. Is there anyway to rule out a crack or porosity in the block? Thats a cute baby brad!
 
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Old Aug 1, 2011 | 04:04 PM
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If the block was cracked you would have coolant in your oil.
 
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Old Aug 1, 2011 | 04:19 PM
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Where did he get the thermostat? Someone on here before put a short shaft stat instead of the long shaft stat and the truck keep overheating.
 
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Old Aug 1, 2011 | 06:06 PM
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I didn't think to check the thermostat, no coolant in the oil so should'nt be a crack in the block. thanks
 
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Old Aug 1, 2011 | 09:03 PM
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dont condemn the heads yet... several good threads here on injector cup issues and diagnosis....i am leaning to injector cups.... pull vc's take out injectors and pressure test the radiator and look inside each injector hole and look for coolant...
 
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