central lock questions

[pag@hydrosphere.com (Pete Gotseff)]

Hi all,
	some central locking questions for you pneumatic actuated gurus.  
	
	I'm having problems w/ a central locking system but not sure if 
they're problems or just special features.  Here's what I'm trying to 
find out.
	
1)	on mid to late 80's 4K/5K does the driver door have a 
pneumatic actuated plunger or just the 3 plug VDO switch to control 
the vacuum pump?
2)	The vacuum pump seems to retain vacuum/pressure even after the 
door locks have actuated.  This makes moving the locks up/down very 
hard until vacuum/pressure has leaked down to atm.
3)	Can an alarm be fitted to this sytem for remote door lock/unlock. 
That is, how long a 12v pulse is needed on the Hella or VDO pump to 
completely actuate the locks.

	Why am I asking this.  Several reasons.  First, I have a 86 4K which 
I want to put an alarm in w/ the lazy mans door un/lock feature. And 
second, my friend's 90 Jetta w/ p/l blew its vacuum pump and I tried 
mine in it  and it seems to hold too much pressure in the locks until 
the system bleeds down, hence the hard to move locks.  It seems 
 the original pump must have vented as soon as the unit switched off.

	Any thoughts? suggestions? Comments?

	TIA.