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#20060 09/29/2003 6:57 PM | Joined: Jul 2002 Posts: 385 'Bolter | | 'Bolter Joined: Jul 2002 Posts: 385 | I was talking to the Old Man about the clicking that just won't go away in #4E, and he asked what seemed like a simple question: Are you sure the P.O. didn't install hydraulic lifters?
My first reaction was, "Of course not." Then I started to think about it and wasn't so sure. I've never had to tear into the engine, it's always run strong and I try not to fix what ain't broke. But it seemed odd that when I got the truck the lash was set to zero. :confused:
It seems to me that hydraulic lifters would require some fairly extensive customization to get enough oil to work correctly; given the butchered, half-assed repairs to the rest of the truck, I can't imagine the P.O. would spend money on such a modification.
So the question is: Is there a way to determine that I still have solid lifters without pulling apart the top end? | | |
#20061 09/29/2003 7:22 PM | Joined: Feb 2001 Posts: 1,897 Member | | Member Joined: Feb 2001 Posts: 1,897 | Pull the valve-cover and side-cover. Look at the top of the lifter to see if it has a removeable center.....
clicking noise,,,,,,hmmmmm do you have a bent pushrod???
There is enough good in the worst of us and enough bad in the best of us that it does not behoove any of us to criticize the rest of us.
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Be yourself. If you are ever lost, It will be much easier to find yourself if you know who you are!
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#20062 09/29/2003 8:08 PM | Joined: Jul 2002 Posts: 385 'Bolter | | 'Bolter Joined: Jul 2002 Posts: 385 | Thanks, Luke, I'm due for an oil change and was planning to check the lash again. I suspected the P.O.'s zero setting had bowed the pushrod, but there's no metal flake in the oil and I've learned to ignore the clicking.
I'll pull the side cover and see what goes, but until it stops running smooth I'm not replacing anything. | | |
#20063 09/30/2003 12:48 AM | Joined: Aug 2000 Posts: 197 Member | | Member Joined: Aug 2000 Posts: 197 | It was my understanding that none of the gmc engines were drilled for oil to supply hydraulic lifters.
Jason
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