Lifter failure?

woodsnake · Mar 30, 2012

I was crying about what could have gone wrong with my engine the other day to one of the mechanics here where I am working. After he listened to my video in the link;
http://www.stangnet.com/mustang-forums/threads/wtf-is-this-noise-and-why-is-it-happening.850440/
His first thought was a lifter that hadn't pumped back up after the swap.

As I still can't pull the valve covers yet, I'm just thinking, could that be the case? And, if so, can I just replaced the ones that failed? Or do I have to get all 16 ?
What do you think?

Hack · Mar 30, 2012

If a lifter failed you should pull the motor, disassemble and clean everything thoroughly to get rid of all the metal shavings and then reassemble - replacing any wiped bearings, etc. as you do. If a lifter failed the cam is probably bad too. Yes all the other lifters should be replaced in my opinion.

Of course, you can just replace one and let her buck (edit - of course change the oil and filter - I would do it several times if trying this method even on an older engine if you want it to keep running for a while), but that's not what I would do unless the motor is high miles stock garbage. If it's a recent build and you spent money to make it perform, do it right.

PoppyMod · Apr 1, 2012

Hi,
First what is the history with these lifters? cam swap, proper break in, etc.
I would inspect the lifter's outward appearance. If these are new lifters, did you cycle them in an oil bath before installing?

woodsnake · Apr 1, 2012

Cam and lifters both have only a thousand miles on them or so. Again, my question is directly related to my recent noise after swapping on the new heads...One of the advantages of being deployed, is LOTS of time to think about projects at home. Progress being made, and what remains to be done....

PoppyMod · Apr 1, 2012

woodsnake said:
Cam and lifters both have only a thousand miles on them or so. Again, my question is directly related to my recent noise after swapping on the new heads...One of the advantages of being deployed, is LOTS of time to think about projects at home. Progress being made, and what remains to be done....

Hi,
If the noise was not there prior to swapping heads and each lifter was returned to it's previous position,
and you followed the prescribed method of setting their pre-load, I would suspect an exhaust leak. ( long winded, I know)
These leaks can sound just like a ticking lifter. Re-torque header bolts.
I once, did a complete tear down to inspect all of the lifters, only to find by doubling the gaskets, did the noise go-away.
BTW, thanks for your service bud!

woodsnake · Apr 4, 2012

I just can't figure out what could have happened, between the first video, after swapping everything over, warming it up, driving around the block, and then cruising down the road at 45 mph, for 1o miles, and back through town. I will find out when I get home I guess! Stupid hi performance hot rod Ford anyway!( Thanks PoppyMod, I'mglad to be here!)

PoppyMod · Apr 4, 2012

woodsnake said:
I just can't figure out what could have happened, between the first video, after swapping everything over, warming it up, driving around the block, and then cruising down the road at 45 mph, for 1o miles, and back through town. I will find out when I get home I guess! Stupid hi performance hot rod Ford anyway!( Thanks PoppyMod, I'mglad to be here!)

Hey Bud,
If you feel good about your work, re-torque your exhaust manifolds. Relax, and re-think your work.
Good Luck!

Lifter failure?

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