Loud Lifter Tick on cold startups - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 12-08-2006, 12:30 AM   #21
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Heres a video of mine

John, Does yours sound like this?

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Old 12-08-2006, 12:41 AM   #22
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No Ryan. That doesn't sound QUITE like mine. Mine is a fast, sharp tick.

I am taking a video in the morning. When its really..REALLY cold.
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Old 12-08-2006, 02:42 AM   #23
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Ok I am doing an oil change on Saturday...

I was just looking on Advance'* website and noticed these "crankcase flushes"

This one looks good and was wondering if maybe I should try something like this to make sort of a clean slate on those lifters before the new mobil 1 and slick 50 goes in.



Are these somewhat effective? I mean I know these 3800s don't have notorious sludge problems or anything but still. If I AM having a oil pressure/flow/circulation problem, this might remedy that a bit.
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Old 12-08-2006, 11:26 AM   #24
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Sorry the video is taking so long. It was too big to upload to photobucket and no other place online will take it because of its size.

So I am re-rendering it to WMV so that it can be viewed directly in Windows Media Player.

It says about 45 more minutes. So...yeah, now we wait.

I got a good video. The tick was DEFINITELY there.
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Old 12-08-2006, 01:51 PM   #25
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Quote:
Originally Posted by clm2112
Ok, since the tapping noise goes away after a few minutes of run time, I would cross bad lifters off the list. If a lifter was really done, it would tap most to all of the time.

Heres the short list of things that go wrong on a lifter: 1.) Sludge buildup inside the lifter body/plugged orifice keeping oil from filling up the lifter. 2.) Busted spring inside lifter body. 3.) Lifter bore oversize/worn. 4.) contact surface with cam damaged/wrong cam and lifter types.

1 and 3 are pretty common in high milage motors. #2 is often assembly screwup or over-reving the motor..not enough lash on the valves, way too much lash on the valves, bent push-rod, not enough clearance in the valve springs. #4 is just plain stupid **&% (Like using a flat tappet lifter on a roller cam or vise-versa.)

So, in sum, you don't really have a problem with the lifters themselves (or at least it'* unlikely you have a problem with the lifters.) The symptoms are more like a weak oiling system or excessive wear that'* keeping the oil pressure from comming up fast.

If you want to hear for yourself what a bad lifter sounds like, warm the motor up, take off a valve cover, then with the motor running, loosen one of the rockers till it rattles then tighten it back up again. This gets a little messy, but it'* the old school way of setting the lash on solid lifter valve train. (NOTE: This is just for the purposes of demonstrating the sound of a bad lifter, this is NOT the correct procedure for setting the lash on a HYDRAULIC lifter.)
Great explanation Curt...


John, I get lifter chatter which goes away in about a minute.... When I say lifter chatter I mean this in the lightest possible way... Normal cold start for me.. Coldest I have seen here was roughly 29F.... But the LE started as it always did....

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Old 12-08-2006, 03:48 PM   #26
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OK, you wanted a vid...you got a vid.

spent all morning converting and rerendering it

Here it is
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Old 12-08-2006, 04:49 PM   #27
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Hard to say... That does sound like a Bad lifter... But the Audio makes it hard to tell... I'd say that sounds like a single lifter...

Anyone have any other thoughts?

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Old 12-09-2006, 03:47 AM   #28
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Im doing that oil change tomorrow...i still need a comment on that engine flush!!! Is it worth it?!
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Old 12-09-2006, 09:07 AM   #29
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That'll do..

Skip the engine flush.. let'* not add any other variables to the experiment.
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Old 12-10-2006, 02:00 AM   #30
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Ok. not doing the engine flush.

I just got the mobil 1, delco filter, and slick 50 tonight and will be changing it all tomorrow morning. We'll see how it goes.

My hopeful fix for my faithful engine:



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