Author Topic: main vacuum tee  (Read 3303 times)

Offline markdilljr

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main vacuum tee
« on: June 09, 2010, 05:38:49 am »
I have an 84 C10 with a 350 and th350 trans, I am trying to fix vacuum problems, how many lines are supposed to be coming off the main intake vacuum tee and which lines are they. Thank You
Ride Rank, Make Bank

Offline Lt.Del

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Re: main vacuum tee
« Reply #1 on: June 09, 2010, 12:19:49 pm »
you should have a silver sticker on the radiator suppor or air cleaner displaying the vacuum routes,etc....
this is from my '79

www.delbridge.net/vacuum.html


Offline topp

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Re: main vacuum tee
« Reply #2 on: June 09, 2010, 03:06:26 pm »
you should have a silver sticker on the radiator suppor or air cleaner displaying the vacuum routes,etc....
this is from my '79

www.delbridge.net/vacuum.html



Unless the PO removed it, painted over it, or changed out the support....
'90 Suburban TBI 350

Offline markdilljr

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Re: main vacuum tee
« Reply #3 on: June 09, 2010, 03:33:37 pm »
I am trying to figure out the vacuum, on the back of my edelbrock carb is the inlet for the brake booster but my booster goes into the tee on my intake, just tryin to see what everyone elses tee looks like and what lines they have going to it. The problem I am having is I can pull plug wires 3,5,2,8 and no change is idle, I was told I might have a vacuum leak and I am trying to track it down, did alot already and no fix, has to be something I am over looking. Could the booster line going to the main tee and not the carb be the problem?
Ride Rank, Make Bank

Offline Lt.Del

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Re: main vacuum tee
« Reply #4 on: June 09, 2010, 09:33:51 pm »
the trick to finding a vacuum leak is take some WD40 and spray it around the hoses, carb gasket, intake, etc... while engine idles.  If rpms go up, you found a leak.