[urq] Fuel injectors Part 2

[Jim Miller]

First of all, many thanks to everyone for the advice on the Urq fuel  
injector seals / sleeves. When putting the new sleeves in, is there  
any type of sealant / lubrication that I should use? Or, any BTDT on  
the whole job? WX '83 10v.
Also, I have read a lot about vacuum issues and I'm now trying top  
track down my own. In the past, I tried the compressed air in  
cylinder 1 (not more than 10psi) making sure that the second valve  
(intake) was pushed all the way down buy checking the cam lobe  
through the oil filler. Also, the air intake has to be totally taped  
up or closed off in some other way. Has anyone else tried this way?  
I'm just curious considering I'm still trying to chase this one  
down... AGAIN!
Thanks.
Jim