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Unread 06-27-2013, 08:59 AM   #1
jdhaas3
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2008 JK Wrangler 
 
Join Date: Mar 2013
Location: Chesapeake, Virgina
Posts: 118
Tick to tap, collapsed lifter...

My 258 has had a small tick since I purchased it a while back. It has gotten a little louder since then. I just replaced the rocker arms and push rods but that didnt fix the problem so I am pretty sure it is a collapsed lifter. If I am going to be replacing lifters, I am going to just replace the cam while I am it apart. This is the one I am looking at getting from comp cam, just looking for opinions. I just want to get rid of my tapping, I dont want to do anything crazy with this jeep.

http://www.compperformancegroupstore...ode=CL68-231-4

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Unread 06-27-2013, 05:59 PM   #2
OldTexas
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1984 CJ7 
 
Join Date: May 2011
Location: Houston, T E X A S
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See if you can find a product called Hydra Valve Clean by Siloo. You may not even need to replace anything.
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Unread 06-27-2013, 09:19 PM   #3
Oily
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1985 CJ7 
 
Join Date: Jun 2006
Location: Kerrville, Texas
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My CJ also has a tick, and has had it since I got it. I think it is getting worse though it sounds the same as yesterday. If I compare it to what it sounded like when I got it I think I would say it is worse. Getting a little worse everyday makes it hard to tell.
That said, I have a good friend who is an ASE certified auto tech and has worked for some major dealerships. He and I looked into it (some disassembly) He thinks I have a piston wrist pin knocking and assure me it is not fatal. (The wrist pin connects the piston to the connecting rod which connects to the crankshaft.)
I hate that tick.
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Unread 06-27-2013, 09:52 PM   #4
LumpyGrits
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1985 CJ7 
 
Join Date: Jul 2010
Location: The Mojave Desert Palmdale Ca. U.S.A.
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Try a can of Restore. This stuff works!
What weight oil are you using now?
LG
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Unread 06-27-2013, 10:52 PM   #5
Dougyfreshh
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1985 CJ7 
 
Join Date: Nov 2010
Location: South Gate, CA
Posts: 40
Pour a half a quart of atf trans fluid in your oil run it for a few miles and change oil some times it will clean them up
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Unread 06-28-2013, 02:19 AM   #6
80cj
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1980 CJ5 
 
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Marvel Mystery oil worked for me. Drain a quart from your crank case and add a quart of the stuff. Didn't take long for it to work for me.
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Unread 06-28-2013, 07:51 AM   #7
texas1al
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1984 CJ7 
 
Join Date: Mar 2013
Location: Arlington, VA
Posts: 62
Is the tick/tack only at startup or is it there once the engine's warmed up. If you're using a fram oil filter, I'd change that right away to a better quality filter like a Napa Gold (Wix) or a PureOne. Changing to a heavier oil like a 15W-40 might also help. Per the factory owner's manual, heavier weight oil like 40W or 50W is fine in warmer temps and for older engine's like our's, it generally helps all the time unless outside air temps are consistently below freezing. Also, might try a high-detergent oil like Rotella to clean things up. Might sound like a shortcut fix, but switching oil weights and filter works wonders at quieting valve train noise in the 258.
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Unread 06-28-2013, 08:02 AM   #8
Oily
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1985 CJ7 
 
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Location: Kerrville, Texas
Posts: 1,568
Quote:
Originally Posted by texas1al View Post
Changing to a heavier oil like a 15W-40 might also help. Per the factory owner's manual, heavier weight oil like 40W or 50W is fine in warmer temps and for older engine's like our's.
Just a thought on this and my previous post. A wrist pin does not get normal engine oil lubrication. A heavier oil might help rule out a lifter tick/tap.
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