or bent.
Intermittent ticking
Thread Starter
Intermediate
Joined: Mar 2004
Posts: 46
Likes: 0
From: kalamazoo MI
Intermittent ticking
Okay gents I need a little advice.
The basics are a stock L48 with a mild crane energizer cam and performer intake.
I have about 300 miles on the new cam. I started developing what sounds like a lifter tick. But it is intermittent. It doesn't tick at idle, only when I rev the engine. It will continue to tick until RPM's drop to near idle level. I have 40 psi oil pressure when hot and all the rockers seem to be adjusted with the correct lash. I ran the engine with the valve covers off and I seem to be getting good oiling and the rockers seem to be moving the same amount (no missing lobe). I also checked the valve spring and I don't see any visible failures.
Any ideas?
The basics are a stock L48 with a mild crane energizer cam and performer intake.
I have about 300 miles on the new cam. I started developing what sounds like a lifter tick. But it is intermittent. It doesn't tick at idle, only when I rev the engine. It will continue to tick until RPM's drop to near idle level. I have 40 psi oil pressure when hot and all the rockers seem to be adjusted with the correct lash. I ran the engine with the valve covers off and I seem to be getting good oiling and the rockers seem to be moving the same amount (no missing lobe). I also checked the valve spring and I don't see any visible failures.
Any ideas?
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
Thread Starter
Intermediate
Joined: Mar 2004
Posts: 46
Likes: 0
From: kalamazoo MI
It seems to be coming from the passenger side.
I'll see if it's the fuel pump. I used a screwdriver as a stethoscope and I still had trouble determining where the noise was coming from.
I'll see if it's the fuel pump. I used a screwdriver as a stethoscope and I still had trouble determining where the noise was coming from.
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
CF Community Team
Joined: Oct 2004
Posts: 19,360
Likes: 5,243
From: Cape Cod, Mass.
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Take a long screw driver and put one end on the fuel pump, the other on your ear and listen. If it's the fuel pump you will know.
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Burning Brakes
Joined: Sep 2005
Posts: 755
Likes: 1
From: Hobart Tasmania
I had two problems with my car recently with a ticking sound coming from the engine. The first was pretty straight forward a leaking manifold gasket. The second was the result of an engine rebuild by the previous owner, too smaller valves were used and the exhaust gases were being forced back through the intake valves and was causing a ticking not to mention the loss of about 70HP.
