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Old 04-22-2015, 12:16 PM   #1
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lifter noise-number 1 exhaust valve

2002 Ford Focus SOHC engine. I have a clacking rocker arm
(cam follower?) Number 1 Exhaust valve. Took the valve cover off and there is way too much clearance between rocker arm and valve stem and lifter surface. Is it easy to change the lifter? Is it simply removing the lifter retainer? I can actually spin the lifter with my fingers so it appears there is no load on it at all. Car seems to be running fine except for the clacking!
thanks for any info.


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Old 04-22-2015, 12:54 PM   #2
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Pull rockers there in a pair, rollers underneath then pop right out but may not if damaged on the bottom. Either roller/cam lobe damaged or roller (hydraulic) has collapsed internally.
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Old 04-22-2015, 03:35 PM   #3
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I sure hope it just collapsed internally and there is no other damage.
Ran the engine without the valve cover for a very short time, oil seemed
to be flowing well LOL
I have an old head that I took apart when I got home today. I see what you
mean about removing the pair, removed the snap retainer and the keeper, those
tappets came out very easily.
My car does have a rebuilt head with only about 12,000 miles on it. Got it to fix the
dropped valve seat problem on the old head.
thanks for the info.
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Old 04-23-2015, 01:43 AM   #4
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Roll the cam around and check the lobe for damage..................
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Old 04-23-2015, 08:27 PM   #5
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If the cam does have lobe damage is it pretty easy to swap the cam from the old head?
Can I leave the valves in and just remove the lifters to replace the cam? I know the cam
pulley has to come off and then remove the cam thrust plate. What else is involved?
Thanks
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Old 04-24-2015, 10:33 AM   #6
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replaced lifter

OK, here is what I found this morning, what a mess!!
The lifter was stuck in the bore. Finally pulled it out,
a bit of damage to the bore, chewed up. Roller on end of
lifter was half gone!. Cam lobe looked ok as far as I could tell.
Funny thing was, there was a shim under the retainer which I think
caused excessive play from the start? I cleaned up the bore as best
as I could, don't know how that will work out. Will keep an eye on it.
If it's toast I will get a rebuilt head. (last picture shows where the shim was)
Attached Thumbnails
lifter noise-number 1 exhaust valve-valve_tappet_4_24_15_focus-2-.jpg  

lifter noise-number 1 exhaust valve-valve_tappet_4_24_15_focus-4-.jpg  

lifter noise-number 1 exhaust valve-valve_tappet_4_24_15_focus-7-.jpg  

lifter noise-number 1 exhaust valve-valve_tappet_4_24_15_focus-14-.jpg  

lifter noise-number 1 exhaust valve-valve_tappet_4_24_15_focus-12-.jpg  

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Old 05-02-2015, 10:35 AM   #7
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Ran the car a couple hundred miles this week, changed the oil,
checked the #1 lifter, looks like it is OK.
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Old 05-03-2015, 12:36 AM   #8
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Wow, got lucky saving that one.
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Old 05-04-2015, 01:45 PM   #9
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LOL.............didn't save a thing there, let's see if it makes 1K, I'm betting NO.

Head and cam totally destroyed there...................the cam lobe is clearly lit to show a hill shape instead of flat and the first 3 pics show heavy step wear in the hole that the top and bottom pics do not show in other holes, all one size bore all the way down (supposed to be anyway!) there. Looking at .030"-.050" wear in the hole there, tappet will flop around wildly until it sticks in the soft aluminum again and coming right up........

Sending lots of trash into pan the whole time, even a new head won't fix that issue-will simply tear up again. Draining the oil doesn't touch that.
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