I have 5000 miles on the new crate ZZ4 350 (carbed), Within the last couple of weeks I noticed what I thought was the infamous exhaust leak ticking. I figured somthing had arttled itself loose and just needed to be tightened. I had it on my V6 for a long time and I thought it was the same sound. I went to the muffler shop today and they could not find any leaks. The guy said that it sounded like it was coming from the top end of the motor.
So I've got a ticking coming from the top end on a new motor, 5000 miles in. Oil pressure is good, mileage seems down some, and sounds like a little ticking.
Any suggestions? Ideas as to what it could be?
Thanks Todd
[This message has been edited by RiceCooker (edited 09-16-2006).]
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04:02 PM
PFF
System Bot
5.0Vert Member
Posts: 287 From: Hurst, Tx, USA Registered: Mar 2005
Well unhook your alt and waterpump to rule them out, have someone push in on the clutch to make sure its not the throwout bearing.
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=41966 MECHANIC'S STETHOSCOPE Reaches 11-3/4'' Find bumps and squeaks from the engine to the dashboard. Identify piston slap, worn gears, faulty valves, water pump failure, damaged gaskets, defective bearings, and more. Handle is shockproof. 2-piece probe reaches 11-3/4''.
ITEM 41966-5VGA
$5.99
This thing helps to find noises as well. Good luck hope you figure it out.
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05:03 PM
Formula88 Member
Posts: 53788 From: Raleigh NC Registered: Jan 2001
Lifter would be my guess. Use the stethescope to trace the source of the sound.
If you haven't changed the oil and filter recently, go ahead and do it again. New engines tend to have a lot of left behind crud from the build process. A fresh oil change may be all it needs.
[This message has been edited by Formula88 (edited 09-16-2006).]
Out in left field here--I would first say a lifter usually, but ,had this happen in the last couple of weeks, check all your plugs and wires--just a hunch on a new engine..
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10:42 AM
Sep 18th, 2006
RiceCooker Member
Posts: 1178 From: Calgary, Alberta, Canada Registered: May 2000
Thanks all, I will give the oil change a try tonight and try to pick up a stethoscope
The sound was definately very minimal at first a couple weeks ago....it got progressively more noticeable - which is why also I thought it might be an exhaust bolt loosening or something to that extent.
I'm assuming that I should not be driving it at all in the meantime
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02:01 PM
joshua riedl Member
Posts: 1426 From: watertown wi USA Registered: Jan 2004
You might have a bad spark plug wire that is arcing to ground. Look at your engine in the dark to see if you see anything. Had that once on my 68 camaro. Just an idea.
Out in left field here--I would first say a lifter usually, but ,had this happen in the last couple of weeks, check all your plugs and wires--just a hunch on a new engine..
This kind of tick happened on my rebuilt 4.9. I used a stethescope and traced it to the distributor and after changing the cap, rotor and just about to do wires and ICM I stepped back and double checked the routing on my wires and discovered one wire just hanging loose that had fallen off the spark plug. Reattached and it cured the tick.