Testing for vacuum leaks
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Senior User
Joined: Oct 2005
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From: Livonia Michigan
Testing for vacuum leaks
I see a few questions on manifold gaskets leaking.first how do you know if it's leaking.What are the symptom's I just put my engine together and it's not running all that great,wondering if maybe I have a leak. I went to the Harbor Freight store today to buy a vacuum test gauge but they didn't have one. When I find one do I check the vacuum at the power brake booster or elsewhere. The engine seems to stumble on the way up but when I hold it at about 2500 rpm it seems to run good,also rougher than normal idle.What's good vacuum 15 psi?
TIA
John
TIA
John
Cranky Old Guy
Joined: Mar 2008
Posts: 3,562
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From: Raphine, Virginia
Senior User
Joined: Nov 2008
Posts: 276
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From: Nashville NC
Thats some right good imformation on that site, only thing though 
I'm trying to figure out how I can print those two pages off cause I know I'll forget, but how do you do it & the gauges still move.
Thanks, Neil
I'm trying to figure out how I can print those two pages off cause I know I'll forget, but how do you do it & the gauges still move.Thanks, Neil
Cranky Old Guy
Joined: Mar 2008
Posts: 3,562
Likes: 6
From: Raphine, Virginia
One of these day's I'm going to buy a cheap laptop so I can carry my info to the garage.
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