New Build, No Oil Pressure Om Pre Lube!

I know the oil galley plugs are there, I saw them...I will call him tomorrow and ask him a few questions. I may be able to borrow an inspection scope from work tomorrow...thanks for the picture.

 

Check to make sure that your oil pump gasket has (2) rectangular holes like this one:
http://www.gesslerheadporting.com/g...9794d75066e5f9778525710b005708d7!OpenDocument
I've gotten gaskets that only had the one rectangular hole and they're supposed to be correct, but I couldn't get any pressure on one of my 300's until I cut the other hole in the gasket.

 

I will check that stuff out. Good thing I did the pre lube step.Later.

 

Not sure what happens if you install the booster plate upside down...maybe the same thing as installing the booster plate gasket backwards? If the builder did your oil pump assembly, did he know that the booster plate has a totally different gasket than the pump gasket? Just trying to throw some stuff out there... the oil pump is pretty simple, so it must be something simple that is wrong here.

Here are the 2 different gaskets that go in there:

http://www.taperformance.com/products.asp?cat=72

 

I do have a new front cover. It's from the Buick grand national (231) I was told it was the same and would work on the 300. starting to wonder if that is not potential cause. I will look at relief valve and pump gasket before I go pulling the front cover off. Yuck.

 

This might be a dumb question but can happen. Make sure the drill is nice and tight on the primer tool and also make sure the tab is inside the tool to turn the oil pump. If you have to repack the pump put the vaseline in the frig for a while then it will stay solid inside the pump while you are getting everything else ready. Fill the filter with as much oil as you can before putting it on.

 

OK, disassembled pump again. Vaseline was all on top part of filter, I tried tapping the housing to get the relief valve to fall out, no go, I had to suck it out (damn near swallowed it),put it in, took it out a couple of times, I can see the ridge where it bottoms out, so looks good. The gasket has the two holes as indicated, It does have a booster plate but I am quite sure that is the plate that I put there a year ago so it should be fine.

Now I have not separated the booster plate from lower half of the pump. Let's assume that he did not have the appropriate gasket and used a regular gasket, could this cause issue? I hesitate to remove, if I damage gasket may need to wait another 2 weeks if I have to order from T/A...I keep thinking I get this locally...Mellings?? My builder told me if all else fails to remove the front cover and bring it to him. Anyhow that's the poop I have so far.

At this point a may as well try packing that pump again. I will fill that filter to the brim and catch the oil that drops. I will have an xtra 1.5 quarts that I will deal with if I get this pump primed.

 

Michael, just for the heck of it, can you post some well focused pics of the parts as you're seeing them? The more the better.

Devon

 

if you take the front cover off .. pack the oil pump then turn the shaft with your finger and see if the vaseline comes out. when i prelubed mine i had the valve covers off i just waited till i seen oil coming out aroung the lifters and oil pressure on the guage. i didnt look at the pushrods. sorry if you already answered but do you have a guage installed. how do you know if the guage is good? if you think the pickup tube might not be on then pull the drain plug. i think the pickup tube will be right above it. or would that be just on rear sump 455?

 

Blow some air up into the suction hole to the pan. If it gurgles then you know the pickup tube is on and in the oil.. Just ditch the booster plate if the bottom cover of your oil pump is in good shape.. If it isn't you can always make it new again by wet sanding it on a flat surface.. You can always add it back later if you want..

Does the drill ever bog down and get ripped out of your un-suspecting hand??

 

Have gauge, it was working great before tear down. I have NO RESISTANCE when spinning pump. Have done this once before, I know how hard that drill is supposed to work when that pump is primed . Also been peering into VC's, it's dry. Pictures on the way.

 

Fill that cavity up real good where those gears go and shove em into the goo. You'll be good to go.

 

I only see one gear, maybe it's just the picture

 

Blow into the oil pump inlet hole (that leads down to the oil pickup tube) and see if you can hear oil gurgling in the pan. It sounds as though the pump isn't able to bring oil up.

The pressure regulator is downwind of the pump- so I don't see how the regulator is relevant (if you see no oil at all in the pump after you pulled it apart). It's the suction side of the pump that isn't working, right?

 

It always falls out when you take the pump apart. No worries, it will go back in when I put it back together

 

You should only need the vaseline in the gear cavity; it looks in the pictures like there's vaseline all up in the cover plate, relief valve, etc on the bottom side.

 

That's because he's already attempted a prime after packing the gear pocket.

Devon

 

Hummmmm...to be honest I jammed the goop in every cavity and packed it in till I saw it exit through the other end. So I am sitting here chuckling thinking that maybe that was, eh, a no,no?