Heard a "clunk" when doing lifter bleed.
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Cruiser
Joined: Sep 2017
Posts: 200
Likes: 35
From: southern Wisconsin
Heard a "clunk" when doing lifter bleed.
Ok people, I am baffled here.
I did new tensioner shoes on my 04 FLHTCI. I started putting everything back together, Started bleeding down rear lifters. Was able to turn the push rods with fingers. After all rear lifters bled, rotated engine. 4 revolutions in ( turned the engine rear cylinder tdc total of 4 times) Heard a significant "clunk" in the engine on the last turn. I made sure that the push rods where in place on rocker arm and lifter. I turned the engine over with a short 3" ratchet with spark plugs out. I looked at cams and bottom of lifter. Push rods are not bent I removed them and checked.
I am about to go out and do a compression test to see if anything in the head was damaged. Could this have been from a stuck lifter ?
Let me know what you guys think before I put this all back together.
I did new tensioner shoes on my 04 FLHTCI. I started putting everything back together, Started bleeding down rear lifters. Was able to turn the push rods with fingers. After all rear lifters bled, rotated engine. 4 revolutions in ( turned the engine rear cylinder tdc total of 4 times) Heard a significant "clunk" in the engine on the last turn. I made sure that the push rods where in place on rocker arm and lifter. I turned the engine over with a short 3" ratchet with spark plugs out. I looked at cams and bottom of lifter. Push rods are not bent I removed them and checked.
I am about to go out and do a compression test to see if anything in the head was damaged. Could this have been from a stuck lifter ?
Let me know what you guys think before I put this all back together.
Thread Starter
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Cruiser
Joined: Sep 2017
Posts: 200
Likes: 35
From: southern Wisconsin
A little more info here.
The engine is stock. so stock cams, heads, pistons and cylinders.
I did a cold compression test, throttle wide open.
Rear cylinder------135 psi's
Front cylinder------135 psi's
Both jumped right up to 135 within like 2 rotations and stayed there.
Let me know what you guys think.
Thanks
The engine is stock. so stock cams, heads, pistons and cylinders.
I did a cold compression test, throttle wide open.
Rear cylinder------135 psi's
Front cylinder------135 psi's
Both jumped right up to 135 within like 2 rotations and stayed there.
Let me know what you guys think.
Thanks
Last edited by sjones73; Feb 3, 2019 at 11:32 PM.
HDF Community Team
Joined: Jun 2006
Posts: 12,774
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From: san antonio
If what bustert described is what happened, that pushrod might need readjusting. 135psi is a bit low and I would have expected a reading near 150psi for a stock 88" motor. Could have been the battery if CCP stop building after two rotations and you didn't mention mileage, so cylinder wear could be a contributing factor. Nothing to lose sleep over but getting the battery fully charged and trying again to confirm the first readings, one dry and one with a bit of oil added, would give you a better picture of the condition of the top end. JMHO. I have assumed EFI but if carbureted, you will have to get the slide up and out of the way for an accurate reading; I have found it easiest just to pull the carb out of the rubber boot from the manifold.
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Cruiser
Joined: Sep 2017
Posts: 200
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From: southern Wisconsin
Thanks guys.
Battery was fully charged. I have it sitting on a tender during the winter. I may do a wet compression test here just to see what the numbers will do.
The engine has 40,000 miles on it.
Battery was fully charged. I have it sitting on a tender during the winter. I may do a wet compression test here just to see what the numbers will do.
The engine has 40,000 miles on it.
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HDF Community Team
Joined: Jun 2006
Posts: 12,774
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From: san antonio
My first thought exactly. That would require double checking your adjustments.
Last edited by Ed Ramberger; Feb 7, 2019 at 01:49 PM.
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