2wd w/lsd and a electronic locker in syncro case

[tclark]

A few days ago I asked about cable actuators
http://www.thesamba.com/vw/forum/viewtopic.php?t=552389

I have looked into the cable option & it is viable but I thought I'd look at electric actuators, I have found some very inexpensive GM actuators for popular models. Its gm part 12471631 available as dorman 600-103
http://www.dormanproducts.com/p-24304-600-103.aspx


It looks like there will be a small amount of fabrication of an adapter plate/housing & a plunger to fit in the actuator & attach to the locker shaft
OX has a kit for most of this for $175, but I can get the actuator for $55
and the switch & harness is probably another $50, not much else in the kit is useful unless the housing can be adapted & attached to the external boss on the transmission case, ...
I can't see any way to use the supplied plunger & attach it to the locker external shaft

http://www.ox-usa.com/ox/OnlineStore/ProductDetail...fault.aspx
http://www.youtube.com/watch?v=-T-ZowfMwRE&feature=player_embedded


So has anyone else gone down this road
any pros/cons of electrically operated actuators
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89 Westy with TDI AHU 1.9 manual lots of mods
85 GL 1.9, auto (for sold)

[tclark]

I thought I would just update on the progress of getting an electronic actuator for the locker

The wire harness is gm 15306396 ACDelco PT1449 bluestreak sn74, superseded by gm# 19180287,PT2448,

I have the pin outs for the dorman activator 600-103 gm#12471631
Pin Outs
A-Apply Ground to extend , remove to retract (used a Green Wire )
B-constant ground (used Black wire
C-FeedBack supply 12V when Locked & fully extended (Used Blue Wire )
D-Power (Used Red Wire )

I bench tested the actuator & it will fully engage the locker shaft as long as
there is a ground applied to pin A, effectively creating a solid locker shaft & keeping it engaged


When I release the ground the actuator returns & the spring pressure in vanagon locker will disengage the locker fork

My question in the standard vacuum setup does the spring return the locker fork or does the vacuum actuator create a reversal & return the locker fork ?

If that is the case I needs to either
A) attach the locker shaft to the actuator somehow & I need to see if there is an real power to retract the actuator or it might all be from its internal spring return

B) get a bigger spring for the vanagon that would disengage the locker


I wonder what happens when the oil is in the tranny & its gummed up a bit

how do ya test that ?
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89 Westy with TDI AHU 1.9 manual lots of mods
85 GL 1.9, auto (for sold)

[WLD*WSTY]

[Zeitgeist 13]

The vacuum diaphragm both pushes and pulls on the actuator rod based upon the signal it's sent from the switch. I think that any actuator needs to have a positive intervention on both sides, rather than just relying on spring tension.
_________________
Casey--

'89 Bluestar ALH w/12mm Waldo pump, PP764 and GT2052
'01 Weekender --> full camper
y u rune klassik?

[yardbug]

I would prefer the cable locker over electronic. On my toyota, I always fear the wires getting mangled going through brush or if a log or big stick gets kicked up on the trail and lodges itself, breaking the wires. I know these are extreme cases but it's always in the back of my mind having to crawl under to jump some wires to unlock it.

Of course you don't have this extreme case issue with a syncro since the locker is in the tranny
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'69 Tintop T2 - '86 Syncro - '87 Westy - '02 337 GTI - '99 4Runner - '13 4Runner

[danfromsyr]

If I were to continue your extreme thought/fear there. I'd be afraid of an entangelment on the cable and pulling the locker on w/o me being able to disengage it.
either way if your wires or cable or vacuum are not properly protected you are subject to trail born damage.
having the locker fail in the Off seems more fail safe to me than if it's engaged and stuck On

[yardbug]

It's not like its gonna blow up or drive you off a cliff.. I just like the simplicity of it.. Manual over power windows. I like my diesels to be mechanical injection ;D
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'69 Tintop T2 - '86 Syncro - '87 Westy - '02 337 GTI - '99 4Runner - '13 4Runner

[tclark]

[tclark]

Not pretty but its works 1st time welding since high school never welded stainless b4 & it looks like it

The angle of the pics is kinda deceptive there is 3-4" of clearance above the
the cv
now hoping that eye balling the clearances on the cv joint & the the area around the tranny are good when its all installed
_________________
89 Westy with TDI AHU 1.9 manual lots of mods
85 GL 1.9, auto (for sold)

[jordauto]

Have you still got enough clearance for the starter? Mine is pretty tight with the factory vacuum servo.

[tclark]

[tclark]

Just to close the loop so far so good
I finally wired up the switch into the van & engaged - disengaged the locker for real many times tonight(too bad no sand, mud, or snow nearby tonight)
I ended up doubling up the standard springs on the locker shaft..
although the century spring were the right OD they did not have the right ID to slip over the locker shaft...
I'll need to pop in here after year or so & report if the shaft needs more spring tension to back off the engagement after thing get a bit more gummed up
..I'll also post some final install pics of the wiring, the locker adapter in install, & the switch when its light out tomorrow
_________________
89 Westy with TDI AHU 1.9 manual lots of mods
85 GL 1.9, auto (for sold)