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Old 09-10-2008, 08:28 PM
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what does a collapsed lifter sound like??

Hey guys, my engine is now making a minor ticking noise on the driver side bank. When I increase the rpm's the ticking also increases and goes back down when i release the throttle. I know I have a misfire in cylinder #1 because the ***** damn headers interfere with the spark plug and the spark arcs from the boot on the wire to the header, it is visible. I am wondering if the misfire is what I am hearing or if it is my valvetrain (I am in the process of fixing the misfire problem). I want to know how loud a collapsed lifter is because you can't notice the ticking when you are sitting inside the vehicle. Thanks for any and all help here.

Keith
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Old 09-10-2008, 08:36 PM
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I would think its the misfire you are hearing......a collapsed lifter, you would hear it........
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Old 09-10-2008, 08:42 PM
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Quote:
Originally Posted by poncho62
I would think its the misfire you are hearing......a collapsed lifter, you would hear it........

My old 4.3 had a collapsed lifter (at least that's the diagnosis from a local shop...). The thing would tick like there was no tomorrow at idle, and then the tick would decrease as the RPM's came up. In colder weather, it would tick briefly, and then silence itself until the engine warmed up.


Sounds to me like a misfire by your description....

In a while, Chet.
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Old 09-10-2008, 08:46 PM
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what does a collapsied lifter sound like

are you sure it is not a header gasket leak?
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Old 09-10-2008, 08:49 PM
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I just put a set of lifters in my SBC as a result of a colapsed lifter. It is very noticeable, so much in fact, that is was making me crazy driving the darn thing so I had the top end re-done. My engine had less than 1000 miles on it when it happened.
I would deal with the misfire first before digging into your top end.

Beagle
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Old 09-10-2008, 09:51 PM
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Didn't you just answer your own question??? You know the plug wire is burned through and arching against the header, seems to me that I would fix that first (?????)
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Old 09-11-2008, 12:22 AM
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If its a collapsed lifter, it will kinda sound like a "snick-snick" at low RPMs and the engine will have kinda a sewing machine sound at higher RPMs.

That sound can come from anything that adds extra lash to the valvetrain; bent or loose rocker, rocker stud working its way out, bent pushrod, collapsed lifter, low oil pressure, wiped cam lobe.
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Old 09-11-2008, 11:08 AM
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Quote:
Originally Posted by sexypizzaman
Hey guys, my engine is now making a minor ticking noise on the driver side bank. When I increase the rpm's the ticking also increases and goes back down when i release the throttle. I know I have a misfire in cylinder #1 because the ***** damn headers interfere with the spark plug and the spark arcs from the boot on the wire to the header, it is visible. I am wondering if the misfire is what I am hearing or if it is my valvetrain (I am in the process of fixing the misfire problem). I want to know how loud a collapsed lifter is because you can't notice the ticking when you are sitting inside the vehicle. Thanks for any and all help here.

Keith
may want to dent/dimple the header over by the plug, the noise you describe sounds like a lifter, could just need an adjustment, a collapsed lifter is a bigger problem that would require the manifold to be removed in order to repair. Go for the simple stuff first, most repairs made when a malfunction occurs will require minor tweaks and will cost the least.
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Old 09-11-2008, 03:53 PM
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collapsed lifter

Someone else mentioned a header gasket leak. That would surely describe the ticking sound increasing as the RPMs do.
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Old 09-11-2008, 04:21 PM
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well thiw iw kinda funny. my dads 396 in his chevelle was ticking and we thought it was the lifter, that wasnt it. looked around played with it a bit and it never went away and performance wise it didnt have any effect at all. then one day we popped the header off on the drivers side for some reason and there was a rip in the gasket so we replaced it, turns out that mystery tick was a leaky header gasket lol. i never would have guessed it, we had all kinds of motor heads listen and toss in ideas and check it out.
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Old 09-12-2008, 11:51 AM
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Some real good advice posted..Fix the plug wire,istall a couple of GOOD header gaskets and try it. Still ticking, then dig deeper.
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Old 09-12-2008, 06:34 PM
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I've had a clean tick tick from spark arc and loose header bolts. Seems like the common opinion so far
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Old 09-12-2008, 07:08 PM
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Pull the plug wire off and out of the way and see if the noise goes away. Dont run it long that way as you will be washing the cylinder a little. Thsi will prove if it is a spark tick.
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Old 06-05-2009, 01:15 AM
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Hello, I have a zz4 in my s10, it only has around 1000 miles but some very hard ones lol, Just lately it started making a ticking sound after I shut it off then restart shorly after(like when I go in a store or something of that nature) Only happens when trucks warm, when i start it when its cold it doesnt make this sound. seems like the passenger side of the motor>.. any advice is much appreciated. I heard about the collapsed lifter thats how i found out about this thread!
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Old 06-05-2009, 05:52 PM
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If you look around on the net there is a alot of zz4 lifter problems.
I have a zz4 and it started ticking after about 2hours had to readjust the valves and it did not completely go away.
I put the lt4 hot cam in and win I did I replaced the lifters I still have alot of lifter noise
But the power is very good.
I think the zz4s valve train is just noisy.
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