New 87 GN (Topic merged with "It's On!" post)

[SuperSix]

Do you sell the "pimp-ass" cover bolt kits?

[The Radius Kid]

You need (5) 1/4-20 X 1" and (1) 1/4-20 X 1-1-1/2.
 

And of course, there's a trick. You'll noticed the long bolts you have are small headed bolts with a built in washer. A normal 1/4 bolt will have a head too big to actuate with a wrench or a socket....or you could just get one of my pimp ass SS socket head cap screw timing cover kits and be done with it

Careful about using SS socket head screws with Aluminum parts.
Galvanic reaction can lock them in so they won't come out.
Maybe some Loctite 240?

[SuperSix]

You need (5) 1/4-20 X 1" and (1) 1/4-20 X 1-1-1/2.
 

And of course, there's a trick. You'll noticed the long bolts you have are small headed bolts with a built in washer. A normal 1/4 bolt will have a head too big to actuate with a wrench or a socket....or you could just get one of my pimp ass SS socket head cap screw timing cover kits and be done with it

Careful about using SS socket head screws with Aluminum parts.
Galvanic reaction can lock them in so they won't come out.
Maybe some Loctite 240?

Anti seize won't work? I use it on all dissimilar metal assemblies.

[daveismissing]

I do too. Seems good so far.

[The Radius Kid]

Anti seize won't work? I use it on all dissimilar metal assemblies.

*Maybe*.
The problem is you want to avoid any metal to metal contact or at least minimize it.
Most Anti Seize grades use metal in them [Copper,Nickel,etc.].
Liquid Teflon seems to work [Loctite 567].
The GM thread goop seems to be a mix of 567 and 290 [IIRC .. the high strength blue stuff].
It comes out of the bottle baby blue....242,IIRC.
I think the Permatex version is 24240.

[earlbrown]

the gasket out of the felpro gasket kit should be .006 to .0065.  You need to tighten up that end clearance before putting that unit into service

[SuperSix]

the gasket out of the felpro gasket kit should be .006 to .0065.  You need to tighten up that end clearance before putting that unit into service

How do I get that clearance down? From what I see, the oly way it taller gears, or getting the cover machined.

What do you think about these gears? The wear on the top, and nicks on the sides concerns me. Looks like some trash may have gone through the pump at one time. Should I replace theses gears? Is the wear causing the high end clearance?

[earlbrown]

Your gears are the right height. How are you measuring end clearance (and have you made SURE there are no boogers or dings on the mating surfaces or around the tapped holes)?

[SuperSix]

Your gears are the right height. How are you measuring end clearance (and have you made SURE there are no boogers or dings on the mating surfaces or around the tapped holes)?

I am using my caliper as a straightedge - I printed out your instructions and Steve's, and am following them closely.

Using a set of KD Tools feeler gauges, I am putting the straight edge over the top of the gears and measuring that way. I made sure to pull the gears out, clean both them and the gear pockets really good too.

BUT - I am using a Harbor Freight digital caliper...

[earlbrown]

how are out of the hole are your gears?

[SuperSix]

how are out of the hole are your gears?

I don't understand..

[Steve Wood]

how far above the rim are your gears?

[SuperSix]

how far above the rim are your gears?

.0007 oops. It's .007

I measured it like in the bottom graphic: (Figure 23)

[earlbrown]

did you mean to type .007"? If so, you're going to be fine. If you're at .0007" your cover might be a goner.

[SuperSix]

did you mean to type .007"? If so, you're going to be fine. If you're at .0007" your cover might be a goner.

No.. .007

And it's a brand new AC Delco cover - better not be trash.