1990 Throttle hesistation

[scottfab]

Originally Posted by Schrade

What's up Scott...

At worst, a new alternator. That's what happens when you don't listen to the voice of experience - Franke, in this case... he told me somewhere here, but I dis-regarded it... If you're stupid, you better be rich.

Maybe just a new capacitor, volt regulator, and 'bridge rectifier', in my own case. A $C-Bill + a few...

Found a few places for CS144 innerds - don't know if '90 is EARLY, or LATE style...

Here's EARLY, in case anyone else re-builds:

I was telling my son's about "what's up" the other day. They told me that's old school. Nowadays they say "sup"
Kinda reminds me of the "#" symbol. I've always known it as the "pound" sign. Now it's being called a "hash tag". Go figure.

We're basking if low 50s and sunshine here in the NW.
Can't ask for much better in the winter.

Rebuilding the alternator is fraught with pitfalls but there are a series of measurements that can be made as you assemble to assure no internal shorts exist.

One mod I did to mine was to put a set screw onto the rear bearing to keep it from spinning at high rpm.

[Franke]

Hey there seems to be another newer saying too. Sorry Schrade I didn't mean to jinx ya. One thing I noted from your pics was excessive grease that could contaminate the commutator so a suggestion would be to go easy on the dielectric grease on re-assembly. I actually don't use any on the brush assemblies or near rear bearing and have not had any problems. I would consider the money spent on a rebuild toward higher education.
Scott, your idea seems to me to have merit as I have seen bearing spin if they are not locked in tight by fit. I like it.

[scottfab]

Originally Posted by Franke

....snip...
Scott, your idea seems to me to have merit as I have seen bearing spin if they are not locked in tight by fit. I like it.

My theory is that mine was occasionally spinning. The spinning would
make noise that would come and go. Eventually it heated and failed.
The heat caused it to seized and bonded to the housing. Then it was hell
getting it out.
The tapping was quite easy.


I'm not sure this link will work (been having some problems) but this is how I rebuilt mine
http://www.zr1netregistry.com/Inform...r-Rebuild.aspx

[Schrade]

I'll ask the guy doing the re-work there Scott, if he suggests it.

If I do any mod, and it goes belly up, I might be SOL on what-ever warranty I get...

Originally Posted by scottfab

My theory is that mine was occasionally spinning. The spinning would
make noise that would come and go. Eventually it heated and failed.
The heat caused it to seized and bonded to the housing. Then it was hell
getting it out.
The tapping was quite easy.


I'm not sure this link will work (been having some problems) but this is how I rebuilt mine
http://www.zr1netregistry.com/Inform...r-Rebuild.aspx

Anyway here, I did some cleanup (AND DIDN'T SEE ANY SMOKE - BETTER QUIT WHILE I'M BEHIND!!! I HAVE heard some folks couldn't boil water with BURNIN' IT ).

I found metal under the 'tar', on the suspension hardware. Corner jam is my biggest pet peeve . The thought of pumping grit into a fitting, in front of new grease, makes my gut do 360's

[Dynomite]

Originally Posted by Schrade

The thought of pumping grit into a fitting, in front of new grease, makes my gut do 360's

I just bought several of those Zercaps on Ebay......

I like to cap off my Zerk Fittings also......

ZerKaps

[Dynomite]

Originally Posted by Schrade

Can the IH bolt, that holds the alt rear upper bracket, be loosened, without affecting torque dynamics of plenum / IH??????????????????????

Yes.......... Just do it

Now you know why I was looking for more photos of Alternator Removal without messing with the Plenum
And without messing with Coolant (if you do not have TB Coolant Eliminated through the Plenum)

I Double Like your Photo Coverage

[Schrade]

Originally Posted by Dynomite

Yes. Just do it

Just do it, huh Cliff? Did I ever say I'm from Missouri? You know - the Show-Me state??? You near here?

Anyway, I don't think a socket will go on that bolt, with the INJ as it sits.

The thought of rounding the head off with an Open-End isn't appealing either...

IF Alt removal will work, withOUT plenum movement, the coolant manifold still would need to be removed.

Unless you got a coolant manifold by-pass too

[Schrade]

...and now that I think back here, Jerry did say you could probably loosen the CC Cover bolts 1 @ a time, to re-seal, and not remove it...

[Schrade]

Alternator IN, withOUT moving a THING - not the upper rear alt mount bracket, plenum, anything.

Trick is to insert the alt lower mounting flange into the WP recess FIRST. Then you'll have to spin the impellor to give just a little marginal clearance of the impellor to the OTS.

Then just a little coaxing to get the last alt housing edge under the plenum.

Then put the pivoting bracket into place, Bat+ Output nut on, rear bracket bolt, and you're done.

Time to do a little editing in 'Solutions' there Mr C!!! Vids of removal, and of re-install are uploading to Y/T now.

First one ever to document Alternator removal with plenum in place???

So everything zipped up, pulled the trigger, and she fired up 2nd try. Closed Loop, idle rock steady - AGAIN. And after shutdown, no smoke, sparks, inferNO.

Restrictor gasket is still installed for DataMaster logging. Secondary butterflies just let in a little more air in, which isn't a big deal, but it's IRREGULAR flow, not continuous 100% steady amount. Restrictor gasket will allow for more minute, steady calculations in DM. THEN we can look at what's getting in there...

[Schrade]

Originally Posted by Dynomite

Do you have a couple of nice photos of the tight spots when placing or removing the Alternator with Plenum in Place?

And some Bullets on what to watch for and How To Do it?

I will post a Link in -Solutions- In the ZR-1 ELECTRICAL Section as the First Tip under BATTERY AND CHARGING
Title the post "Removing Alternator with Plenum In Place


I always had my Plenum Off so never tried besides if I had to.......just looking at it...prolly would not have tried

No snappics Cliff; too chilli for Chuckie.

Removal vid here. You see any stills you want, get the time, and I'll get the frames posted.

Install vid later. Upload time slow with the web crowded Prime Time.