Rocker oil flow on a 3.0? Is any flow good?

[John2037]

My motor was rebuilt by someone else - had the cam gear slip and bang up one of the lifters. Now I repaired it, replaced all lifters and spun the motor around a few times to get oil flowing through the new lifters - adjust the rockers and test run. I don't know if there is a simple answer to this but I'll ask - there is much less oil flow on one of the rockers (the one that got chewed up by banging on the fuel lobe) there is oil flow just less than the others - IDK, something I never seen or looked for - what do you think?

Oh does anyone know timing on the 3.0 - I thought it was 0 and I'm going to search, but if you reply to this and know it would be helpful.

 

[Don S]

Re: Rocker oil flow on a 3.0? Is any flow good?

How does a cam gear slip? It's pressed on the cam and keyed. For the cam to slip, something had to stop the cam from moving and shear the key. Whatever it was had to do some damage to more a lifter. Were all the oil passages to the lifters clear? What about the push rod? Oil has to go through the push rod to get to the rocker arms.

Oh does anyone know timing on the 3.0 -

What's the full model number or serial number of your engine?

 

[John2037]

Re: Rocker oil flow on a 3.0? Is any flow good?

Don you said you never seen one do it but I had posted a pic in one of my threads - I assume that the rebuilder, if you wanna call him that, didn't push it on straight, or had to redo it cause they forgot the hold-down, IDK but it happened..... When I first started to diagnose it sounded like a bent valve, so I had the head completely remaned to hear the same noise many many dollars later. Then I had checked the tubes and lifters because the knock was the same as before the head -

Found a chewed up lifter - the cam gear slid off the cam about 3/8" causing the fuel pump lobe to also hit the lifter next to it and marring it up a bit. Pulled the engine, again, all the rockers, tubes, lifters, dizzy, and fuel pump to get the cam out - replaced the gear (pressed on nicely) repaced all lifters, reassemble and now here I am. Push tubes were all fine - oil flows from the lifter to the tube to the rocker so as a precautionary I changed all the lifters in case of a metal shaving being somewhere in the mix. It's odd to me because running an engine and inspecting the oil flow on every rocker isn't something common but it seems odd being the same rocker that I've had "issues" with - sounds like I need pull the lifter again


It should be the 3.0GSMBY. There is no tag but I have about changed everthing to that spec so its safe to say! All that is left is the fuel pump