tapping sound...

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Jun 25, 2006 | 11:45 PM

KevsC3

Thread Starter

6th Gear

Joined: Jun 2006

Posts: 6

Likes: 0

tapping sound...

Hey all,

I need to see if anyone can help me pin point this noise to exactly what it could be...

During idle, the engine idles fine, however, every now and then it will make a tapping (or even a knock) sound like a bent push rod, its intermittent though, it's like "tap.........tap..tap....tap............ ..............tap......tap"

then if you slightly press the gas, it will go
"tap..tap...tap......tap.......tap...... ...............tap...................... ....tap..tap........tap.tap..tap...tap.. .tap"

then if you go back to idle, you may not hear it for over 2 minutes before it begins and then stops for a while...

the engine did run a little while without oil, the gauge was not working, I added oil and let it run, still same thing.

I took the pushrods out and none are bent or appear to be.

any ideas I hope you can understand from this post lol

Thanks

Jun 25, 2006 | 11:55 PM

SIXFOOTER

Le Mans Master

Joined: Jan 2006

Posts: 9,192

Likes: 27

From: Boca Raton Florida

sounds like a lifter bleeding down a bit

Jun 26, 2006 | 08:18 AM

a1sensei

Melting Slicks

Joined: Mar 2006

Posts: 2,465

Likes: 0

From: Orange Park Fl

A mechanic's stethoscope is a great $10 investment. If it is a lifter, and it sounds like it is, you can take off the valve covers, put the probe on the rocker studs and find which one it is. (It might just need adjustment) God bless, Sensei

Jun 26, 2006 | 01:21 PM

KevsC3

Thread Starter

6th Gear

Joined: Jun 2006

Posts: 6

Likes: 0

Thanks for the info!

If I get a mechanic's stethoscope, I can put it on on the studs while the engine is running? With the valve covers off, would'nt oil shoot out everywhere? DO I turn the engine on or something else?

thanks

Jun 28, 2006 | 08:35 PM

roger55

Burning Brakes

Joined: Jun 2006

Posts: 1,249

Likes: 13

From: San Angelo TX

They make clips to for the rockers so they won't spray, but you still will probably drip a little oil.
Another trick is to cut the top out of an old valve cover and bolt it on.