vacuum leak
 

hey guys i just redid the head gasket, water pump, and fan clutch and i got the truck running, timed and its still making a squeeling/ whistling sound comming from under the intake manifold, i've looked and i just cant find it, its very frustrating, is there anyway to find a vacuum leak or what should i do, don't really want to take it somewhere and pay 100 bucks an hour to find it, anyways heres a link to the video of the sound http://www.youtube.com/watch?v=QmU3mCA36P0 and its a 1984 4runner 22r with a webber 32/36 carb thanks guys

Wow, that is a prominent whistle. My father-in-law is an old gm dealer mech, and taught me to use a vacume line to find things like that. You take a small vacume line about 2 feet long, put an ear plug in one ear, the vacume line in the other, and go around the engine. I have found I like that better than an stethoscope. Another way may be to take some break cleaner spray little bits at a time, in different areas, and watch for the engine to bog down, and look for were it is getting sucked in.

Hope it helps.

if anything spray carb cleaner around the intake, should idle up, thatll let you know where your leak is.