[s-cars] Pressure or vacuum test?

[Igor Kessel]

Folks,
since the weather today was rather cool I drove to work with the windows 
rolled up for the first time in several months. Suddenly I heard a 
distinctive hissing sound coming from the front left side of the engine 
compartment. I also noticed that the boost gauge would climb only up to 
15-16 psi and in a somewhat lazy manner and the acceleration was 
somewhat slower.

Methinks it's the lower crosspipe-to-intercooler Samco hose slipping 
off. I recall that somebody had recently posted some pix on an unrelated 
subject, but in that gallery I saw a makeshift pressure testing device 
built around a 2.5" or 3" PVC plumbing parts and a bicycle tyre valve. 
Could that person kindly repost the pix, along with the DIA of the PVC 
used? Also I need to be reminded just which hose needs to be 
disconnected and plugged for the test so that no oil seal or gasket gets 
blown in the engine. I think it was Kirby who posted the procedure.
Also, do we apply vacuum or positive pressure? Do we use shampoo lather 
to pinpoint the leak?

Thanks much in advance.

-- 
Igor Kessel
http://home.comcast.net/~KBATPO/