Best Way to set the idle mix on a 4160

[Gaz64]

Originally Posted by steve meltzer

OK, Got it all set up and running well. My base timing is 21, the total, 36. Got the Holley set up as Patrick suggested, with the idle set by the secondary adjustment. Because of the geometry of the Holley and its underlying Edlebrock intake i had to use a hex-head machine screw, not an Allen head, but it's easy to adjust with a 5/16 wrench. But, and there's always a "but", right? It still leaks from the intake. Gonna get some adult supervision to install next. arrgghh. s

Have you got some pics of your leak?

Oil leak, or vacuum leak?

What bush do you have in your distributor to get 21 and 36?

Gary

[patrickt]

Originally Posted by Gaz64

What bush do you have in your distributor to get 21 and 36?

Not MSD. Their black bushing is 18 degrees and that's the smallest one in the kit.

[Gaz64]

Originally Posted by patrickt

Not MSD. Their black bushing is 18 degrees and that's the smallest one in the kit.

Yes, I know 18 is their smallest.

There is a 10 and 14 available on the net, we made a 12.

Gary

[patrickt]

Originally Posted by Gaz64

Yes, I know 18 is their smallest.

There ia a 10 and 14 available on the net, we made a 12.

Gary

Trust me, the good doctor ain't milling custom distributor bushings....

[steve meltzer]

OK, thanx for the info about the intake leak, which was immediately obvious after hard driving at the right rear "China" corner, but using a UV light + dye revealed oil leaking from the front, esp on the driver's side and from the rear not only in right corner, but across the middle. I'm just disgusted as I was very careful in trying to do this job. Does anyone ever use the cork gaskets they always supply for the ends? I never have, but jeez...

Timing: I have an MSD box (6 AL, I believe), a standard Ford FE distributor with the advance locked out and an MSD programmable timing computer (8981) now superseded by a the model 8680. s

[patrickt]

Originally Posted by steve meltzer

OK, thanx for the info about the intake leak, which was immediately obvious after hard driving at the right rear "China" corner, but using a UV light + dye revealed oil leaking from the front, esp on the driver's side and from the rear not only in right corner, but across the middle. I'm just disgusted as I was very careful in trying to do this job. Does anyone ever use the cork gaskets they always supply for the ends? I never have, but jeez...

I wish I had a "magic bullet" for intake installations to keep them from leaking but, alas, I do not. If you just can't, can't, can't get it installed without it leaking, and it didn't leak before you removed it, then I would start to suspect something is warped or cracked or the like.

[patrickt]

Well it's time to check in with ol' doc Steve and see if he's making any progress on the Kirkham now that summer time is right around the corner....