Active suspension questions - Page 2 - ZR-1 Net Registry Forums

Franke · 08-29-2013

one more pic. IMG_0006.jpg.

Dynomite · 08-29-2013

You are DA MAN Franke...Franke "took apart" an FX-3 Actuator for us....

1. Photos of FX-3 Bilstein Actuator taken apart. Franke......those are great photos....appreciate it.

Quote:

Originally Posted by Franke

I was going to disassemble one of these and it ain't lookin' easy. I was not sure how to reassemble it after cutting the case open. These units have a small motor and a feedback sensor in them to control shaft position. Could it be possible to borrow one from the rear shocks to test the front electronics?

I think front and rear Actuators are the same electronically except for length of attached cable.

2. Actuator Rotating Mechanism (How the Actuator Rotates the shock gear shaft which in turn aligns various ports within the shock).

Quote:

Originally Posted by Franke

I took an old one apart. You will destroy it as it is glued extremely well.
It has a planetary gear set, sun gear and the outer ring gear is part of the casing. Everything is glued together even the motor housing to the casing.

3. Actuator Operation and Initial Installation of Actuator on FX-3.
When you turn the key to "Run", the actuator goes CCW and then back CW or CW and then CCW.....but both directions like it is searching for end points. Apparently when you install the actuator on top of shock you do not have to align the gear on top of shock.........But I did
I centered the gear as it rotates I think 160 deg total and I centered at 80 deg from one stop....but I think that was not necessary.

The Actuator gear teeth (you can see the gear looking in the open end of the Actuator) which are plastic get broken. I had a front Actuator just dead in the water recently (electrical issue).

4. Used Actuator Source.
Corvettenutz has used Actuators in stock.

Ebay ZR-1 FX-3 Bilstein Shock Actuators

5. Actuator Part Numbers.

92-95 front Actuator part # is 22114407 (rear is part # 22114337). I actually had an extra Actuator #22114407 (92-95) which worked fine on my 91'.

The 89-91 front Actuator part # is 22075651 (rear is part # 22075652).

The 89-91 Actuators and 92-95 Actuators are interchangeable as far as I know (the difference between Rear and Front Actuators is the length of the attached electrical cable).

6. Actuators Can Be Repaired.

FX3 Actuator Rebuild TIPS

Franke · 08-29-2013

No worries. It was a dead actuator. Motor was frozen but the plastic gear was in good condition. Can ya believe it.

Schrade · 08-31-2013

Quote:

Originally Posted by Dynomite

...

3. Actuator Operation and Initial Installation of Actuator on FX-3.
When you turn the key to "Run", the actuator goes CCW and then back CW or CW and then CCW.....but both directions like it is searching for end points. Apparently when you install the actuator on top of shock you do not have to align the gear on top of shock.........But I did
I centered the gear as it rotates I think 160 deg total ...

6. Actuators Can Be Repaired.

I've seen 2 GM actuator modules with a nylon gear that rotates < 180 degrees, for 'ranging', and I effected repairs on both by rotating the broken nylon gear 180 - this one in the snappic is a '98 GMC Electronic Climate Control Module:

The other was the '90 Z headlight motor nylon gear, rotated after dis-assembly, and finding it cracked, while waiting for the new nylon gear in the mail.

The new gear is on the shelf, while the rotated cracked gear is still working for 5 months now. The GMC CC module is still on with the cracked gear, for 3 years.

Dynomite · 08-31-2013

Quote:

Originally Posted by Schrade

I've seen 2 GM actuator modules with a nylon gear that rotates < 180 degrees, for 'ranging', and I effected repairs on both by rotating the broken nylon gear 180 - this one in the snappic is a '98 GMC Electronic Climate Control Module:

The other was the '90 Z headlight motor nylon gear, rotated after dis-assembly, and finding it cracked, while waiting for the new nylon gear in the mail.

The new gear is on the shelf, while the rotated cracked gear is still working for 5 months now. The GMC CC module is still on with the cracked gear, for 3 years.

But....this is the actuator on the Bilstein Shock.......which is completely different

Schrade · 08-31-2013

Yep - it doesn't appear 'serviceable', in like manner.

I can delete my post if you think I should........

08-29-2013	#11
Franke Join Date: May 2013 Location: Beaver, PA Posts: 516	Re: Active suspension questions one more pic. IMG_0006.jpg. Last edited by Franke; 08-29-2013 at 08:33 PM.

08-29-2013	#13
Franke Join Date: May 2013 Location: Beaver, PA Posts: 516	Re: Active suspension questions No worries. It was a dead actuator. Motor was frozen but the plastic gear was in good condition. Can ya believe it.

08-31-2013	#16
Schrade Join Date: Dec 2012 Location: NC Posts: 1,786	Re: Active suspension questions Yep - it doesn't appear 'serviceable', in like manner. I can delete my post if you think I should........ __________________ I'm getting my snappics / threads removed blindly as fast as I can, to get in compliance with copyright / license TOS on the boards here (lots of FSM pages and other copyright / license violations on my part; sorry guys). And thanks to all the guys who didn't whine when I posted those FSM copyrighted / licensed stuff in my threads... ( :thumbsup: [b]and to think I complied with a mod's request to delete a pic of him in a Challenge Car in NCM Museum, so he wouldn't get in hot water)[/b] Thanks to several guys here for sending parts FREE; BearlyFlying, WeGone, Geezer, GoldCylon, and more there, TonyD, mike100, fletchusmc... 1990 #2794; 4L60e Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless, Power Effects 3" [IMG]https://lh5.googleusercontent.com/-GHpfzty7DVU/UQn-0Ru2xAI/AAAAAAAAA14/08mz1p4QLD4/s445/Screenshot-5.png[/IMG]