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hilfigers
Samba Member
Joined: June 04, 2023
Posts: 9
Location: Hungary-Europe-Earth
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 Posted: Mon Jun 05, 2023 1:42 am Post subject: Re: Syncro diff lock video |
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| Sodo wrote: |
Here is an image to ensure that you understand the actuator.
and........
which nipple LOCKs <-------------> which nipple UNlocks.
See pics on this other post[/b] |
I really like to see how the actuator looks inside but I can't find anything from this. Do you guys know someone who disassemble it with pics or vid? |
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Sodo
Samba Member
Joined: July 06, 2007
Posts: 9603
Location: Western WA
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| Posted: Mon Jun 05, 2023 8:35 am Post subject: Re: Syncro diff lock video |
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Download and save this Syncro gearbox Workshop manual.pdf.
Here's a link that works (today) : https://siradventure.files.wordpress.com/2017/09/v...ox_094.pdf
I was certain that I've seen it linked somewhere on TheSamba.
I searched hard on theSamba for this but can't find it.
_________________
'90 Westy EJ25, 2Peloquins, 3knobs, pressure-oiled GT mainshaft, filtered, cooled gearbox
'87 Tintop w 47k 53k, '12 SmallCar EJ25, cooled filtered gearbox
....KTMs, GasGas, SPOT mtb |
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davideric9
Samba Member
Joined: January 21, 2009
Posts: 1000
Location: Oakland CA
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| Posted: Mon Jun 05, 2023 12:41 pm Post subject: Re: Syncro diff lock video |
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Here is an actuator taken apart. Very simple inside. I've found that major reason for failure is the shaft boot (ususally red on blue actuators) cracks, allowing air into the section that should be under vacuum, a vacuum leak.
_________________
1987 Syncro Westfalia, stock (bought 1994)
1986 Syncro Westfalia SVX, 3 knob (bought 2008)
1987 Westfalia (bought 2010)
1988 Wolfsburg GL (bought 2012) |
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MsTaboo
Samba Member
Joined: June 02, 2006
Posts: 4083
Location: East Kootenay, British Columbia
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| Posted: Tue Jun 06, 2023 12:07 pm Post subject: Re: Syncro diff lock video |
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| Sodo wrote: |
I was certain that I've seen it linked somewhere on TheSamba.
I searched hard on theSamba for this but can't find it. |
Syncro factory gearbox manual on Samba:
Technical - Owner's manuals - Type 2 Bus - Owners/Parts/Other Manuals - 1986
https://www.thesamba.com/vw/archives/manuals/1986_vw_syncro_service_manual.php
There's a link to a PDF. If you own a Syncro maybe a good idea to download to your computer for safe keeping.
| hilfigers wrote: |
| I really like to see how the actuator looks inside but I can't find anything from this. Do you guys know someone who disassemble it with pics or vid? |
Section 34, pages 34+35 show the vacuum line layout of a locker.
And Section 34, page 37 shows a diff lock actuator.
_________________
Currently:
'90 Syncro Westy 3 knob w/Zetec
The information age has morphed into the age of disinformation and willful ignorance. Agnotology!
Help the fight against Truth Decay.
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Last edited by MsTaboo on Tue Jun 06, 2023 12:53 pm; edited 3 times in total |
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MsTaboo
Samba Member
Joined: June 02, 2006
Posts: 4083
Location: East Kootenay, British Columbia
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| Posted: Tue Jun 06, 2023 12:36 pm Post subject: Re: Syncro diff lock video |
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| hilfigers wrote: |
This Syncro was parked a lot too. I bought from a 81 years old man, who never used the locks. The drive shaft was not on the car when I bought it. The car is in very rare mint condition.
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Nice looking Syncro! Did you do the various modifications or did the previous owner?
Questions - Why was the the driveline not installed when you bought?
You have it installed now?
It's possible that the rig has a very aggressive VC (viscus coupling) and what you think is the rear locker is really the VC?
An aggressive VC (or failed in lock mode) will bind the front wheels making steering stiff, (not as much as an engaged front locker) but steering will feel tight.
One way to check if the rear locker is indeed engaged is to stop on loose gravel and then accelerate quickly - check to see if both rear tires are digging into gravel.
If it's an aggressive VC one rear tire and one front tire will dig in.
Just a thought.
_________________
Currently:
'90 Syncro Westy 3 knob w/Zetec
The information age has morphed into the age of disinformation and willful ignorance. Agnotology!
Help the fight against Truth Decay.
Defend democracy, support Ukraine. |
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hilfigers
Samba Member
Joined: June 04, 2023
Posts: 9
Location: Hungary-Europe-Earth
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| Posted: Thu Jun 08, 2023 1:31 am Post subject: Re: Syncro diff lock video |
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| Quote: |
| Nice looking Syncro! Did you do the various modifications or did the previous owner? |
It was full factory default when I bought.
| Quote: |
Questions - Why was the the driveline not installed when you bought?
You have it installed now? |
Most of the time, those who didn't need full time 4X4 uninstall driveshaft because the fuel consumption is better without it. Of course I installed it. 
| Quote: |
| It's possible that the rig has a very aggressive VC (viscus coupling) and what you think is the rear locker is really the VC? |
This was my first idea too, but I feel difference most of the time when is unlocked and locked.
| Quote: |
| An aggressive VC (or failed in lock mode) will bind the front wheels making steering stiff, (not as much as an engaged front locker) but steering will feel tight |
My parking place is on gravel surface. I like to park in reverse, so when I needs to turn during reverse parking I can feel the tense and some point the inner back wheel is "overjump" |
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tjet 
Samba Member
Joined: June 10, 2014
Posts: 3533
Location: CA & NM
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| Posted: Thu Jun 08, 2023 1:43 am Post subject: Re: Syncro diff lock video |
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| hilfigers wrote: |
| Quote: |
Questions - Why was the the driveline not installed when you bought?
You have it installed now? |
Most of the time, those who didn't need full time 4X4 uninstall driveshaft because the fuel consumption is better without it. Of course I installed it.
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Or.....It was removed by the previous owner for that same problem you are having now.
Nice syncro btw  |
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hilfigers
Samba Member
Joined: June 04, 2023
Posts: 9
Location: Hungary-Europe-Earth
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| Posted: Thu Jun 08, 2023 1:47 am Post subject: Re: Syncro diff lock video |
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| tjet wrote: |
| hilfigers wrote: |
| Quote: |
Questions - Why was the the driveline not installed when you bought?
You have it installed now? |
Most of the time, those who didn't need full time 4X4 uninstall driveshaft because the fuel consumption is better without it. Of course I installed it.
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Or.....It was removed by the previous owner for that same problem you are having now.
Nice syncro btw |
yes, maybe this was the situation. BTW it's a common habit in my country. |
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tjet
Samba Member
Joined: June 10, 2014
Posts: 3533
Location: CA & NM
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| Posted: Thu Jun 08, 2023 1:56 am Post subject: Re: Syncro diff lock video |
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I want to live somewhere where nice syncro's are a common habit  |
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hilfigers
Samba Member
Joined: June 04, 2023
Posts: 9
Location: Hungary-Europe-Earth
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| Posted: Thu Jun 08, 2023 2:00 am Post subject: Re: Syncro diff lock video |
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| tjet wrote: |
| I want to live somewhere where nice syncro's are a common habit |
Hahaha 
Not the nice syncro is, just the uninstalled driveshaft. |
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hilfigers
Samba Member
Joined: June 04, 2023
Posts: 9
Location: Hungary-Europe-Earth
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| Posted: Tue Jun 27, 2023 7:12 am Post subject: Re: Syncro diff lock video |
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| MsTaboo wrote: |
An aggressive VC (or failed in lock mode) will bind the front wheels making steering stiff, (not as much as an engaged front locker) but steering will feel tight.
One way to check if the rear locker is indeed engaged is to stop on loose gravel and then accelerate quickly - check to see if both rear tires are digging into gravel.
If it's an aggressive VC one rear tire and one front tire will dig in.
Just a thought. |
I think my problem is lays somewhere here, because the issue is present after driving. If I using the car during it's "cold" it's works like a charm. |
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