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Cam swap and no oil pressure AFTER intial start-up

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Old Dec 31, 2006 | 07:18 PM
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Default Cam swap and no oil pressure AFTER intial start-up

Put the cam in got good all pressure, the lifters werent piriming and were ticking very loud, gave it a bit of gas and boom no oil pressure. To me that seems like a spun cam bearing due to dinging the cam bearing during installation of the cam. What I dont understand is, this is the first time this motor has had a cam swap on it, it has about 99K miles on it, it is a 99 model, and the cam was inserted the same way I have done many times. Just wondering if anyone has a suggestion before I start pulling the motor.
Old Dec 31, 2006 | 08:16 PM
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did you change the timing chain? (take off the oil pump)

damn that lil o ring ripped on me and i almost didnt catch it

that'd just suck air right there if it wasent sealed

-erik
Old Dec 31, 2006 | 08:30 PM
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just cam and springs were changed thats it. When I primed it with teh coil packs unplugged and fuel relay removed it built oil pressure, started it up and it had very good oil pressure(60ish at idle), the lifters were loud as hell so I revved it up a bit(~3K) and started hearing a loud knocking, shut it off and it had no oil pressure. I think its a spun cam bearing
Old Dec 31, 2006 | 08:34 PM
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Cam retainer plate has o-rings on it. Did you see the condition of them? That is what seals the lifter oil valley isnt it.
Old Dec 31, 2006 | 08:48 PM
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Yeah it is what seals to oil both galleys, I didnt really pay attention but I think it should be fine. Going to tear it back down tomorrow and inspect the journals to see if I can tell if it is spun or not. This sucks, I just dont understand I did it the same way I ahve done many times with good results.
Old Dec 31, 2006 | 08:51 PM
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I think your on top of the bad luck list
Old Dec 31, 2006 | 09:01 PM
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nah poor ol beau still has the worst luck IMO
Old Dec 31, 2006 | 09:02 PM
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Originally Posted by 1slow01Z71
Yeah it is what seals to oil both galleys, I didnt really pay attention but I think it should be fine. Going to tear it back down tomorrow and inspect the journals to see if I can tell if it is spun or not. This sucks, I just dont understand I did it the same way I ahve done many times with good results.
Did it feel like you hit a tough spot?? Ive done so many cams, never been too terribly gentle. But ive never run into any problems. Surely it may be something simple.
Old Dec 31, 2006 | 09:04 PM
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Originally Posted by TXsilverado
nah poor ol beau still has the worst luck IMO
i should be on that list some where too..i havent drivin my truck 700 miles since august..1 blown motor and 2 blown trannys
Old Dec 31, 2006 | 09:14 PM
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told you i was going to wait and see what you broke next.



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