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Posted: January 8, 2009, 12:46 am
by DCarr
Good progress, Hurk.

Posted: December 28, 2009, 5:04 pm
by Hurk
Posted: December 28, 2009, 5:10 pm
by Anthony
main bearings in my maverick made it start out at around 28 and end up around 3 by the time I got to work..

but I am sure there are other reasons...
Posted: December 28, 2009, 8:45 pm
by Hurk
man i am really hoping that is not it, but that is what i am thinking it might be. The oil becomes a problem when it gets warm but cold its fine. I am hoping i don't have to pull the engine and have to tear through it to fix the problem. Well if anyone has any ideas on this I would like to hear them. thanks
Posted: December 28, 2009, 8:56 pm
by ICEMAN6166
Hurk, read this thread on similar oil pressure issue
http://fordtruk.com/forums/viewtopic.php?t=13802
Posted: December 29, 2009, 3:25 am
by Tech
What is your confidence in the gauge?
Start with an oil change some oil brands break down a lot faster than they should and the viscosity drops way off. If the engine has run hot a few times this can definitely be the problem.
Tech
Posted: December 29, 2009, 11:14 am
by Hurk
hey thanks for the replies. I just changed the oil it was a shell brand 10w-40 oil i put in just last week. I don't know if it was any good but it was on the sale rack so i put it in there for now. I will change it again soon and probably try a 20w-50. When i put the 460 in the truck i converted the oil pan sump which called for a new oil pump and pickup, so that can't be it. I just bought the oil pump gauge too from autozone, one of those sunpro gauges. It looks right because once you start there is a steady stream of oil flowing to it then once it warms up you can see air pockets in it and not a good stream of oil going to it.
Posted: December 29, 2009, 3:07 pm
by Fanatic
Try using Valvoline oil. I have found that it maintains pressure REAL well.
Posted: December 29, 2009, 3:47 pm
by Hurk
I just hooked up my tach today and let the truck get warm again and see what the pressure was. I know there is a 10psi per 1000 rpm rule and once my truck got warm it was right at that. I held it at 1000 rpm and it was at 10psi then went to 1500 and went to 15 psi then went to 2000 rpm and went to 20 psi. I don't know if this is good or not but it seems kinda low. Thanks for the info so far.