Well, The oil pump quit and the engine has to be pulled. They found shavings in the pan, now They have to pull the motor and dissasemble it . So now I have to wait for them to tear it down and either fix this engine or get another one, whichever is the cheaper. I hope this one can be fixed. I ran mobil one 5w30 synthetic its whole life and this is the protection it gives me for 3 seconds worth of no oil pressure . What do you all think is messed up? Any chance of me keeping the engine I have?

 

I bet who ever changed your cam scored a cam bushing and it spun. I have seen it happen before and your block is probably toast. Mobil1 is one of the best oils you can buy. For the pan to have metal in it something was going on for a while. I don't recommend it but a good motor can idle a long time after a loss of oil pressure without serious damage. Keep us posted what you find.

 

What is the best way to try and avoid scoring a bushing? This is making me think twice about installing my cam!!!

 

ummm... take your time on the install. My best advice.

 

I really dont know what is messed up at this point, or if it is much at all. I will probably know sometime next week when they start tearing it down. I am anxious to find out what exactly went wrong. I dont think that It had anything to do with the cam, Hell, it didnt even tick or knock with no oil pressure, it was really very quiet. Only time will tell now.

 

Been there, done that. after having my 1st 6 liter opened up it did the same thing. any little piece of metal that gets in there can hang the relief valve. I too had mobil 1 in there which I do feel gives great protection, and i only ran it a total of maybe 30 seconds with no oil pressure (start it, turn it off, start it turn it off) and in 30 seconds wih no oil it completely destroyed the motor. Had to be completely rebuilt. I feel for ya, man.

 

What all was damaged and had to be replaced? Which do you think is cheaper, a rebuild or a complete engine?

 

Well, everything was trashed. Rod, main and cam bearings, oil pump, cylinder walls were scored, lifter rollers scored, want me to go on?? Like I said it ruined the whole motor. Which is cheaper a rebuild or another motor? That's like saying which is cheaper a red truck or a white truck. Depends on what you want and what you are trying to do and if you can do the rebuild yourself vs paying someone to do it, etc

 

If your careful and use LOTS or oil or assembly lube during installation you shouldn't score a cam bearing on start up, but plenty of lube during any installation is always a foregone conclusion. What do you mean when you say the "pump quit"? The pump can't just quit as long a the engine is running because the pump rides on the crankshaft and has only DRIVE and DRIVEN gears. It is so simple in design it is hard to imagine how it could malfunction unless the overpressure relief got stuck OPEN and bled all the pressure back into the pan, but something would have to FORCE the overpressure relief OPEN in the first place for that to happen. That's not very likely. I guess a piece of metal could get wedged between the piston and bore of the overpressure relief valve, but the piston would have already have to have been forced all the way open before that would even be a possibility. What would cause this overpressure situation in the first place to allow you to bleed down to ZERO pressure? I'd like to know the answer to that one.