2G Oil pump assembly

[Rsawd95dsm]

Just need some Input here. I put my new motor together and ran it all of about 10 minutes before I noticed I had a small oil leak (typical). So I tore it down and have a leak coming out of the oil pump sprocket on the timing side. So I undid the timing and noticed when I went to spin the oil pump it moves hard. I remember in the past doing timing jobs and once you would put the oil sprocket where it needed to go on the line then it would fall down away from the line and you would need to hold it where it needed to be once you were getting the belt on.

Now when I was putting the motor together I spun the sprocket with a drill for a long time with oil in the motor to prime it up. Then installed the timing belt and started it. I had assembled the oil gears with lube weeks prior. I just am a little concerned with this being a new motor and all and reusing the original oil pump case.

Should I get a new one? Or am I just being paranoid? It just doesn't seam right that it's harder to spin then what I thought I remembered. And it's weird that it had a leak at the oil sprocket when there's a new seal installed there as well. Any inputs would be great. Thanks.

 

[donniekak]

Is it an oem or aftermarket pump?

 

[Rsawd95dsm]

Oem with about 100k on it.

 

[BogusSVO]

Do you still have the balance shafts or did you do a BSE?

 

[pauleyman]

Spins hard or just stays in place? Sprocket will not "turn away" when seals are new. Sprocket itself is also a sealing surface
You Sure It Isn't worn?

 

[Rsawd95dsm]

I did a BSE on it.

And the seal is new but it leaks.
After inspecting it it doesn't look worn from the naked eye. On the case behind the gears there is signs of tiny tiny and I mean tiny rub marks. The grime in there is from me just playing around with it. It didn't have any junk in it when I pulled it apart. Just oil.

 

[boost97gst]

You didn't mess with the castle plug right? Iknow that is prone to leakage and can look like oil coming from the sprocket, it's right above it. Is this possible or have you ruled that out?
Other than that i'd guess a cocked seal. Couldn't be much else right?
Keep us posted. I just did my first BSE and front case assembly last week.Packed in plenty of petroleum jelly, used to rtv/copper spray or anything. I've been told by most people not to.

 

[Rsawd95dsm]

No I didn't mess with the castle plug and it isn't leaking from there. It def leaks from the pulley even with the new seal. I'll have to try another seal there.

But I'm still a little weary on the oil pump turning harder than I remember. I guess I'll just clean it real good, assemble it, and go at it again.

 

[pauleyman]

Again, the pulley itself is a sealing surface. You may need a new sprocket/pulley.

 

[Tiki2777]

No I didn't mess with the castle plug and it isn't leaking from there. It def leaks from the pulley even with the new seal. I'll have to try another seal there.

But I'm still a little weary on the oil pump turning harder than I remember. I guess I'll just clean it real good, assemble it, and go at it again.

Test your clearances with feeler gauges, and use Jafromobile's video as a guide if you are weary of it being worn out, I replaced my whole pump and gears and case with oem for peace of mind. If this fails... It's you're engine that fails with it. I would quadruple check everything if the case is out