WebFirst, verify the vacuum gauge and the port you are connecting to. 5in is very low vacuum and I suspect the car would idle like crap. Vacuum is produced by the engine efficiently trying to pump air and the carburetor choking it off. Engine condition (piston, rings, heads), timing chain (advanced/retarded) affect how much vacuum it produces. WebMar 15, 2007 · A vacuum leak through an 1/8" diameter tap at the carb is the equivalent of a 0.020" gap for 5/8" on the carb base gasket. The tap could be connected to the distributor or vacuum secondary or the choke plate. I'm not saying this is the problem...not on a car with a mile of vacuum hose. But it is worth the 2 seconds to investigate.
How to Find a Vacuum Leak - Smoking Out Vacuum Leaks - Popular Mechanics
WebJul 26, 2024 · No bueno. Air can enter the engine through faulty gaskets between the parts of the intake system, cracked, damaged, or disconnected hoses, and potentially even … WebOct 25, 2011 · Light a cigar (don't inhale) and slowly puff all the smoke into the rubber hose you attached to the intake manifold. Repeat this several times to fill the system with smoke and pressure. Make sure to cap the air intake tube to close the system beforehand. Found two vacuum leaks this way! spectrum edmonton
How much will it cost to fix a vacuum leak in my car? Jerry
WebJan 7, 2016 · 1. Speed surges while cruise control is engaged. One of first symptoms most commonly associated with a problematic cruise control vacuum reservoir is the speed surging while the cruise control is … WebApr 13, 2024 · Locating Engine Vacuum Leaks. Check for loose or broken vacuum hoses; leaks around the intake manifold gasket or throttle body; leaks around the (PCV) valve and (EGR) valve. A leak is a problem that creates both; poor fuel efficiency and a loss of power in the vehicle. The ultimate bad news is, damage to the engine itself. A Bad (EGR) Valve WebOct 2, 2024 · Start a vacuum-leak smoking expedition by plugging up any obvious potential ports in the intake manifold, starting with the inlet to the throttle body from the air cleaner. … spectrum education group utah