Engine noise
Thread Starter
Navigator
Joined: Jun 2011
Posts: 9
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Engine noise
As the engine is warming up and after the carb kicks down to idle I've been hearing a rattling noise as if it's a lifter ( my take on it ) however this weekend I had the heater on while warming up and the rattling never happened . ( ran the car Sat and Sun ) any ideas? Oh and the noise only last a second or two . And never once the engine is hot .
Race Director
Joined: Oct 2008
Posts: 19,060
Likes: 1,641
From: Long Island
The PVC valve is the forward plug / fitting on the valve cover, 2 types . The first picture is what was on the motor before the rebuild - not correct, the second is the correct one. The line usually has a T in it. Carb to PVC and then to Vac Tank.
Drifting
Joined: Jul 2011
Posts: 1,697
Likes: 139
From: Syracuse NY
Ok, here goes years of work as a service writer:
Lifters go 'tickticktickticktick', and usually sound like they are coming from the rear of the engine.
PCV valves go 'flrrrr ppppp ppppp pppp pppp' and sound like they come from the carb area.
Spun bearings sound violent as hell, like a man with a jackhammer trying to get out.
Exhaust leaks ALMOST sound like lifer knocks, but have just a little less 'TING' to the tick tick tick....
Is this making any sense?
Lifters go 'tickticktickticktick', and usually sound like they are coming from the rear of the engine.
PCV valves go 'flrrrr ppppp ppppp pppp pppp' and sound like they come from the carb area.
Spun bearings sound violent as hell, like a man with a jackhammer trying to get out.
Exhaust leaks ALMOST sound like lifer knocks, but have just a little less 'TING' to the tick tick tick....
Is this making any sense?
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Thread Starter
Navigator
Joined: Jun 2011
Posts: 9
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Have had hood open and closed with the same sound .... I'm gonna replace the pvc just to see if that's it ..... Problem is the sound only last a second or two , no time to get the rubber hose like you said .. But thanks a million for the help ....