1990 Throttle hesistation

[Franke]

Merry Christmas to you Schrade. Unfortunately Santa has restricted this Elf to Colorado this year but maybe the new year will be kinder to ya. Maybe Santa has some extra bolts from his ZR1. I hear its pretty quick to deliver all those toys in one night.

[Schrade]

I found the bolt earlier today. Haven't actually touched it tho' - I have to corkscrew the light/cam about 270' into place to see it, and take screenshots and snappics, and no landmarks either.

[USAZR1]

Hydrogen Embrittlement isn't a problem with aluminum. Have you considered powdercoating the case with a high gloss powder. I've seen some that are as shiny as chrome.

[Tyler Townsley]

http://www.parts123.com/parts123/yb....Z5Z5Z50000050x~~~

Tyler

[Franke]

I've seen rebuilt alt's from parts stores with silver paint on them to pretty them up because the case is stained just like you said. When I went to wipe them down after installation the paint came off.
As far as the coating on the field core - its there for several reasons. Corrosion resistance mainly. I wouldn't clean it off. Tyler's idea above looks like a good solution for a low buck fix.

[Franke]

Schrade,
There should be a little hole in which to insert a toothpick or other small round stick which holds the brushes in place and protrudes out the back of the case. That way you can pull the pick out when the case is assembled together and allow the brushes to contact the armature. Put the toothpick through the hole in the brushes case as well as the alt case. Don't need fishing line. Try it I think you'll like it. Also, be careful using rubber as an alt terminal insulator as the original one is made from Bakelite or fiberglass and doesn't compress like rubber to maintain clearance to the case.

[Schrade]

Originally Posted by Franke

Schrade,
There should be a little hole in which to insert a toothpick or other small round stick which holds the brushes in place and protrudes out the back of the case. That way you can pull the pick out when the case is assembled together and allow the brushes to contact the armature. Put the toothpick through the hole in the brushes case as well as the alt case. Don't need fishing line. Try it I think you'll like it. Also, be careful using rubber as an alt terminal insulator as the original one is made from Bakelite or fiberglass and doesn't compress like rubber to maintain clearance to the case.

Rubber squeeze WAS a concern there Franke, but it's tight enough in the opening so the shank is ok. The bolt head with half a grommet is tentative; probably go with a whole one instead there...

Just saw the opening in the case rear for the tool Jxxxx , for the brush retension @ assembly. Wondered about that as I went...

[Paul Workman]

Due to the high rpm achieved by the alternator, I'm sure you can appreciate the need for extremely tight balance specs for the rotating hardware; and that includes the impeller (fan). My point is, I don't recommend painting the impeller as doing so may result in upsetting the center of gravity to (at the very least) cause premature bearing wear.

But, if you DO paint the impeller, care must be taken to assure the paint is applied (or plating, if that be the case) absolutely even. One way to do that is to spin the impeller as the paint is sprayed on, OR dipping. (It appears the paint on the impeller is laid on perhaps a bit thick(?), and probably done with the impeller in a stationary state while hand sprayed, yes?)

Maybe you're OK, but I hope you haven't created a future problem...Just sayin.

FWIW,

P.

[Schrade]

Vid uploaded on alternator housing paint - I'd gotten a couple of PM's about laying colors on the plenum, and TB extension paint / decals. Not too much difference here, except for Aluminum paint...

It does NOT have polyglass + MEK hardener mixed into the paint - I haven't checked on miscibility in Aluminum paint. Anybody know already??? Lenny DaVinci I ain't; maybe I oughtta' check into Holiday Inn Express for a night or 2 here...

vid

[Schrade]

Originally Posted by Bearly Flying

Ya, Schrade I was deeply offended....

Have you got that thing running finally?

THING? You call my stuff a THING?

Anyway here, how did you know it's a 'thing'??? Kinda' flattered actually

No - haven't got it re-assembled [again] yet. And still thanks for the TB butterfly screws too! and We Gone (parts CD), and geezer Own. Man.), and Dom, and someone else who sent me free stuff too - who WAS IT???

The paint on the alternator fan WAS not right. Like PW said, balance IS a consideration, and I'd thought of balance as I hadn't thinned it, or mixed poly/MEK in it. It definitely would have made for a balance issue, with some sags on one side. And stripping the paint off the fan was a PAIN.

Doesn't matter - not enough Global Warming to work outside right now anyway. My 'garage' is the perfect compliment to Lincoln's birthhome - ONE wall. And I ain't no popsicle. Plus the missing bolt is still in the same place where I found it with the spycam - and I don't have a clue where it actually is.

Gotta' replace one of the coolant manifold elbows too. Curious about Samco stuff - anyone ever heard anything about Samco stuff? Cliff by chance maybe?