Can a Collapsed Lifter blow up my engine ?? - S-10 Forum
 
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post #1 of 18 Old 01-11-2010, 09:55 PM Thread Starter
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Exclamation Can a Collapsed Lifter blow up my engine ??

My 99 Blazer has 132k on it and runs fairly decent.

I'm having issues getting the engine to put out heat to the heater core (see my other thread in this forum).

I decided to run the engine up a bit (80MPH 3k RPMs or so) to get the engine warmer. I did NOT work. I had done this the other week and the heater started blowing hotter.

Anyways, when I got off the highway I noticed the engine developed a loud ticking noises. It's the same speed as the valvetrain so I'm guessing a lifter crapped out when I ran up the engine.

Is it still safe to drive my truck or will a collapsed lifter blow up my engine ?

Short of ripping the engine apart, what's the best way to free up a collapsed lifter ?

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post #2 of 18 Old 01-11-2010, 10:32 PM
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Re: Can a Collapsed Lifter blow up my engine ??

roller lifters don't collapse. they haven't used flat tappet lifters since the early 90's in most engines.
ticking lifters are quite normal for a lot of engines.

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post #3 of 18 Old 01-11-2010, 11:17 PM
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Re: Can a Collapsed Lifter blow up my engine ??

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Originally Posted by serpentracer View Post
roller lifters don't collapse. they haven't used flat tappet lifters since the early 90's in most engines.
ticking lifters are quite normal for a lot of engines.
I"m sorry but our lifters can collapse. Well its more like they can get stuck collapsed. Now to answer the original question you should be fine running your engine even if the lifter is collapsed. I however don't believe this to be the case in your situation. I would be willing to bet it is a exaust leak.

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post #4 of 18 Old 01-11-2010, 11:19 PM
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Re: Can a Collapsed Lifter blow up my engine ??

A collapsed lifter can cause a dead skip. Is it skipping?

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post #5 of 18 Old 01-12-2010, 06:14 AM Thread Starter
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Re: Can a Collapsed Lifter blow up my engine ??

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Originally Posted by laydout97 View Post
A collapsed lifter can cause a dead skip. Is it skipping?
Not that I can tell. It still seems to run ok. It's just annoying as hell.
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post #6 of 18 Old 01-12-2010, 12:08 PM
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Re: Can a Collapsed Lifter blow up my engine ??

Well that lifter got stuck for a reason, could be an early warning sign, maybe somethings gummed up, maybe the top end isn't getting oil. DO NOT TRY I AM NOT CERTAIN, but i was wondering if maybe putting a little penetrating oil in your motor oil might free up some of the gunk? AGAIN DO NOT TRY THIS I AM NOT CERTAIN <NOT YELLING JUST WARNING> Btw, Steelers didn't make it too the play offs Cowboys are in round two!!!!!!!!

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post #7 of 18 Old 01-12-2010, 01:38 PM
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Re: Can a Collapsed Lifter blow up my engine ??

try adding a few ounces of Marvel Mystery Oil to
the motor oil. MIGHT help...

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post #8 of 18 Old 01-12-2010, 02:59 PM
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Re: Can a Collapsed Lifter blow up my engine ??

I had the same issue. I suspect sludge is causing the issue as I cut open my oil filter and it had a inch of sludge sitting in there.

Here's what I did: Filled my Oil with one can of Seafoam. Ran the engine for 100 miles. Change filter, used OEM GM filter, run fresh Synthetic Engine oil (5W30) Like Royal Purple or Castrol Syntec for older engines. The synthetic oil does a good job flushing the ports out of the hydro lifters. Once you motor starts ticking, I change my oil now every 2200-2500 miles. I know this is more frequent, but its stopped the lifter from ticking again for almost 6 months now.

If you continue to run the engine you will damage the hardening on the cam and the rod will fall apart...long term.

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post #9 of 18 Old 01-12-2010, 06:55 PM
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Re: Can a Collapsed Lifter blow up my engine ??

hmmm, nother idea for you... My grandpas truck (GM) was ticking, so he pulled the valve covers off and the ports where the oil circulates/drains were clogged. Wouldn't hurt to check them for sludge and gunk.

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post #10 of 18 Old 01-12-2010, 07:38 PM Thread Starter
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Angry Re: Can a Collapsed Lifter blow up my engine ??

Well....got BAD news....

It's not a sticking lifter. It's a SPUN ROD BEARING.



Now I REALLY look like the Bruiser Brody pulling his hair out (My Avatar!) !!



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Last edited by LabRat116; 01-12-2010 at 07:39 PM.
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post #11 of 18 Old 01-12-2010, 11:08 PM
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Re: Can a Collapsed Lifter blow up my engine ??

I have never heard a spun bearing tick. They will chirp like a belt squeal. How do you know that it is a spun bearing?

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post #12 of 18 Old 01-12-2010, 11:18 PM
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Re: Can a Collapsed Lifter blow up my engine ??

did it sound like this..............

http://www.youtube.com/watch?v=BK6M2KrylMo
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post #13 of 18 Old 01-13-2010, 12:03 PM
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Re: Can a Collapsed Lifter blow up my engine ??

okay so the lifter problem isn't related, its the bearing. now i get it.
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post #14 of 18 Old 01-13-2010, 12:22 PM
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Re: Can a Collapsed Lifter blow up my engine ??

Eh thats two whole different sounds there buddy. My dad called me and told me he had a stuck lifter. I get there and he drove 50 miles on a rod knock. The lifter is a light tap and a rod is a sledge hammer hitting the block. He spun the #7 rod bearing.
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post #15 of 18 Old 01-13-2010, 08:28 PM Thread Starter
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Arrow Re: Can a Collapsed Lifter blow up my engine ??

Quote:
Originally Posted by fox_forma View Post
did it sound like this..............

http://www.youtube.com/watch?v=BK6M2KrylMo
No. That's an exhaust leak you have right there. Most likely the exhaust manifold gasket blew out.

Mine is actually more of a dull rapping noise than a tick. I've had (2) very exprienced Machinists verify that it was in fact a rod bearing noise.
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post #16 of 18 Old 01-14-2010, 10:37 AM
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Re: Can a Collapsed Lifter blow up my engine ??

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Originally Posted by s10stocker View Post
I"m sorry but our lifters can collapse. Well its more like they can get stuck collapsed. Now to answer the original question you should be fine running your engine even if the lifter is collapsed. I however don't believe this to be the case in your situation. I would be willing to bet it is a exaust leak.
I have a engine building book that says a collapsed lifter is actually one that has collapsed on the face where it contacts the cam lobes. not one that doesn't pump up or has broken internally.
people are using the wrong terminoligy according to this book

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Last edited by serpentracer; 01-14-2010 at 10:44 AM.
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post #17 of 18 Old 01-14-2010, 10:51 AM
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Re: Can a Collapsed Lifter blow up my engine ??

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Originally Posted by LabRat116 View Post
No. That's an exhaust leak you have right there. Most likely the exhaust manifold gasket blew out.

Mine is actually more of a dull rapping noise than a tick. I've had (2) very exprienced Machinists verify that it was in fact a rod bearing noise.


here's my engine with 2 spun bearings.

http://www.youtube.com/user/blue03r6#p/u/4/1NPAWF420UQ

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Last edited by serpentracer; 01-14-2010 at 10:53 AM.
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post #18 of 18 Old 01-14-2010, 07:04 PM
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Re: Can a Collapsed Lifter blow up my engine ??

Quote:
Originally Posted by LabRat116 View Post
No. That's an exhaust leak you have right there. Most likely the exhaust manifold gasket blew out.

Mine is actually more of a dull rapping noise than a tick. I've had (2) very exprienced Machinists verify that it was in fact a rod bearing noise.
If thats an exhaust manifold leak you just saved me a bunch of headache but I'm pretty positive something let loose in the bottom end of that motor. Keep us posted on your motor, mine should be coming out this weekend to see where it sits.
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