new heads and studs & still 13 psi - Ford Powerstroke Diesel Forum
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Old 03-02-2011, 04:26 AM
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new heads and studs & still 13 psi

i am asking this for a buddy . he just tore down his 05 350 6.0 and put new heads on from international , new gaskets , arp's , egr delete and turbo back exhaust . before all this work he had the psi gauge hooked up to coolant system to check pressure and left it installed after work was completed . he was telling me today that since the work he's seen 6-8 psi then the next week 9 -11 psi and now 13 psi in the coolant system . he says its not jumping around our climbing fast but it slowly climbs to 12 - 13 psi and stays there . the first thing that came to my mind was if the new heads he got from international were not flat enough for a good seal on the gaskets .
is there anything else it could be ? any input on this will be greatly appreciated as he is a little upset about throwing 10 grand at the truck and he still doesnt have confidence in it . thanx .
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Old 03-02-2011, 02:26 PM
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anyone got 2 cents to add ?
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Old 03-02-2011, 02:37 PM
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Put the gauge on your truck and see what it does. Is he running tunes?
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Old 03-02-2011, 02:40 PM
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mine is roughly the same but i am running extreme street and hes stock .
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Old 03-02-2011, 05:36 PM
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I know the coolant system is designed to run up to 16 psi. It also getting warmer, and the coolant temps could be a bit higher then they were a few weeks ago. did he replace the oil cooler also? Is it still puking? what kind of boost pressure does it run?
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Old 03-02-2011, 05:44 PM
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it's not overheating by chance is it?
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Old 03-02-2011, 06:14 PM
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no overheating and no puking just the 13 psi on the gauge that has him worried . I'm not sure if he did the oil cooler . i'll have to call tomorrow and ask him . i dont remember a cooler or rebuild kit on his parts list . wow ! how bad will that suck , just get it back on the road and have to tear into it again . thanx for the input guys . i'll be back tomorrow with the oil cooler answer .
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Old 03-03-2011, 05:08 AM
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so my buddy says the oil cooler was done with everything else . so now what does everyone think . i'm lost on this one .
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Old 03-03-2011, 06:15 AM
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Heres a good video that will walk you through it.
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Old 03-03-2011, 06:27 AM
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Where is he teeing into the system to check pressure?
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