Much better.

But . . . JB weld sucks. I would not trust it in that application especially on a used pump.

 

+10
The porosity in the used pump means it's actually still coated with oil no matter how much you cleaned and prepped. I would not trust jb weld to hold on given the application.

-Luke

 

Thanks for the input. I recall reading somewhere that JB Weld would be ideal for this application, as well as Devcon. I don't believe the couple pores in the JB weld is from oil, I put it in a parts cleaner for a few hours and brakleen'd it dry. I would blame my patchy application, to be honest. I guess I can only hope at this point lol.

 

Dude, JB weld in an oil pump? A stock oil pump would be safer than that IMO.

 

I'm not talking about the bumps in the JB weld. Cast aluminum is porous. (Well, most cast aluminum is.) A used pump is saturated with oil. Oil prevents ANY epoxy from bonding well. JB weld is extraordinarily poor in this application. Devcon is better than JB weld. JB weld is used in a lot of situations by a lot of people with more creativity than sense.

That is NOT going to hold up. I don't think that it would hold up using devcon on a used pump. There are epoxies I know of that are formulated to work (Belzona stuff comes to mind), but it would likely shock you with how expensive they are.

 

I'll have a look at that belzona stuff at work on monday. I work at Fastenal, fortunately exotic epoxies are right up our alley and I can get it a lot cheaper most likely. I see what your saying about the pores in the casting now, I never though of this.

 

I think your porting job looks great

I do not see a need for any jbweld!
(just to make that transition flow better? think about how much you opened that hole up compared to that small stock hole)


So if you use the pump with the jb weld in it
Ensure you use an oil pressure gauge!


can we see pics of the jbweld application?

 

Thanks for the input again guys. I'm going to run it and see how she goes.



There is jb weld in the pics, where I ported from the pump outlet to block inlet and theres a small amount where i ported the outlet for the pickup.

Here, to give you a better idea...

That was the block inlet after porting but before JB welding. You can see how the oil would go back, swirl, and then flow out the pump. I reshaped that flow to be one smooth motion.

 

+1 porous metal

Sticka plate of aluminum in an oven, oreven conventrate a heatgun at it. Itstarts sweatingout moisture from the air.

 

When it comes to the oil pump you should not "Hope" anything. The oil pump is the heart of your engine. Take a chisel or something similar and knock the JB Weld out of it.

 

From what everyone is saying it seems like a new pump would be a better choice.

 

It's the only choice. And, you can get a better (internally) pump to start with. The Y-series pumps, while being choked off (intentionally) actually do have better shapes except for the inlet at outlet. Open those up and re-shape them and you'll have a more efficient pump that will flow more and more efficiently.

 

What's my best option for a new pump? Just look for one that's high flow or something?

 

Saw a place selling d16z6 oil pumps for $124 or $136 a few weeks ago IIRC. That would be a good bet.


I agree with everyone that says the jb weld will separate.

Looks good otherwise.