I just got a used Edelbrock intake and Edelbrock carb and before I install them what should I do with them as far as having them checked out at a machine or auto shop. Maybe media blast the intake?

What about the carb, any parts changed before I install or a good cleaning?

Also, going from a 2 bbl to a 4bbl should I put in a new or bigger fuel pump?
Any advice will be appreaciated. This is on a 72 f100 v8

Jeff

 

The same fuel pump will work fine if in good order.

You can clean the intake, but I would simply try the carburetor to see how it does before rebuilding. You never know, it might work perfect and if it doesn't you'll know where to concentrate your inspection upon tear down.

If you blast the intake, MAKE SURE that you leave no media behind unless you're using pecan hulls or something.

 

I'll second that advice about media blasting. It's particularly bad with intakes that have the tin cover underneath. I've seen these that were blasted and spray painted "ready to go", but when you tipped them glass beads spilt out. Even if none come out, you can bet they'll be temporarily embedded in the oily gunk in that tin tray.

Also don't power sand the machined surfaces. Fix any stripped threads. Perhaps get it cleaned at a shop in their giant dishwasher. Replace any steel fittings in it with aluminum or brass.

 

What is the best media to use?

 

For an aluminum manifold I would wash it in solvent, THOROUGHLY dry it, then use pecan or walnut hulls.

 

I had it blasted and checked for warpage, it is warped 6000 of in inch, the shop said 4000 is max. It would cost as much to fix that as buying a new one. Is 6k to much warp?

 

If it were me, I would get a manifold gasket set and while at the parts store pick up a can of "The Right Stuff." It is silicone gasket sealer in a Cheez Wiz can.

I would go home and get everything ready to install the manifold and use contact cement to glue the side gaskets into position. Throw the cork end gaskets in the trash. Once the side gaskets are stuck in place, take the Cheez Wiz can and put a bead of sealer along both ends of the block where the end gaskets would go and gob a little in the corners. Then carefuly lower the manifold into position.

Start all the vertical manifold bolts in place, choke up on your ratchet and cinch them down lightly starting in the middle and working toward the ends. Then go back and start at the middle and work toward the ends again, tightening a little tighter. Once you have all the bolts snugged up good working from the center toward the ends, let it dry overnight before starting the engine.

Once it's running, use a vacuum gauge and see if you have good vacuum. Check for leaks at the ends. If you have good vacuum and no leaks, be happy.

I expect that you can be successful with this process.

 

I assume you mean .006". I agree with MB that you'll probably be fine. If you can find or make up a couple long studs to put in the heads first, you can then lower the intake over them and avoid shifting around the gasket. Then you can remove these studs as you place the intake manifold bolts.

I bet if you tightened just one bolt to proper torque you would find that the manifold would distort a lot more than .006", which might give a little perspective on things...

 

IF the distributor is out, the studs would be a good idea. Just use a few cuts off of a piece of all thread from the hardware store. If the distributor is in place, don't worry. Just put the intake on with nothing on it. The aluminum intake is light enough to carefully lower into place with the back a little higher while you slip the front under the distributor.

The Cheez Wiz stuff can be moved around quite a bit and still do the job. It is fabulous stuff. That's why the get $14 for it.

 

Thanks you give me hope! $14 bucks is better than 250 for a new intake and worth a try since my labor is free (me)

 

Your $14 won't be wasted if you will run about a 1/2" out of the end before storing it. This will sort of cap it and let it stay reusable for awhile. You will find it handy to have around.

I have taken this stuff before and crammed into leaking places around oil pans and such. By just cramming it into the cracks, even with oil there, it will dry and seal the leak. Amazing stuff that's worth every penny IMHO.

 

permatex ultra black works just as good (or is the same)and is cheaper, but you have to squeeze it out of the tube

 

To lay a nice, uniform bead along the ends of the manifold mounting surface, the Cheez Wiz can works WAY better.

 

Cheese Whiz cans? You guys down there don't really have Cheeze Whiz in aerosol cans, do you?

 

I bought a can of the chez whiz stuff you were talking about, it taste really bad, I hope it works better than it taste! And I thought real chez whiz tasted bad!