Best method for isolating a noisy hydraulic lifter
#927960
02/13/11 05:24 PM
02/13/11 05:24 PM
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Joined: Nov 2004
Posts: 25,050
Texas
GoodysGotaCuda
OP
5.7L Hemi, 6spd
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OP
5.7L Hemi, 6spd
Joined: Nov 2004
Posts: 25,050
Texas
|
For too long I've had a noisy hyd lifter in the old boat anchor (LA 318), and it's about time to swap it out. Seems to be coming from bank one, sounds like cyl 3 or 5. What is your best method for picking out the faulty lifter? I have a full set of brand new lifters here I can choose from, but I'd rather be certain I find the culprit while I am in there. I do get some noise on cold starts, once it's warm it sings like a bird. Thanks 
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Re: Best method for isolating a noisy hydraulic lifter
[Re: GoodysGotaCuda]
#927963
02/13/11 06:27 PM
02/13/11 06:27 PM
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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While idling push straight down on each rocker arm w a wooden hammer handle on the pushrod end & it'll quiet the offender. Your psi is good right?
live every 24 hour block of time like it's your last day on earth
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Re: Best method for isolating a noisy hydraulic lifter
[Re: Leadfoot]
#927966
02/13/11 09:03 PM
02/13/11 09:03 PM
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Joined: Nov 2004
Posts: 25,050
Texas
GoodysGotaCuda
OP
5.7L Hemi, 6spd
|
OP
5.7L Hemi, 6spd
Joined: Nov 2004
Posts: 25,050
Texas
|
Quote:
I honestly don't know. But why the hesitation on replacing them all since you have full a set(of lifters)?
Fear of wiping the cam out really..
I'm in no hurry to do anything. If I change two at a time on that bank it's fine with me, assuming they can be fished out? I don't recall..or at most one bank at a time.
The motor has low oil pressure. Hot idle is 15, max hot is 40 (from 3000+). It's about had enough of me driving it, but the thing keeps on going. I'm looking to just keep it as is but lose the lifter noise. I have another short block here, but I really rather keep the 318 running until I'm through with it.
Thats the hesitation for all of them, tick is not worth the engine going south (..."right now")
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Re: Best method for isolating a noisy hydraulic lifter
[Re: GoodysGotaCuda]
#927970
02/13/11 11:30 PM
02/13/11 11:30 PM
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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Any that you would replace you'd want to go thru the cam breakin procedure so If you're planning on doing all of them but only several at a time if I'm reading that right  you might consider doing all of em at the same time & therefore 1 breakin & unless it's on it's last leg I'd toss in a Summitt cam along w em
live every 24 hour block of time like it's your last day on earth
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Re: Best method for isolating a noisy hydraulic lifter
[Re: donbarnes]
#927973
02/14/11 10:39 PM
02/14/11 10:39 PM
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Joined: Nov 2004
Posts: 25,050
Texas
GoodysGotaCuda
OP
5.7L Hemi, 6spd
|
OP
5.7L Hemi, 6spd
Joined: Nov 2004
Posts: 25,050
Texas
|
Quote:
It takes patience, but on LA you can actually swap them out by snaking them out the distributor hole with a magnet. Had just done new paint and detail on my motor and ended up changing out a whole set of new Comp lifters  that failed immediately because the inside bores were too tight and the plungers stuck- all without pulling the intake 
Yeesh! That would be a pain alright!
Hopefully this is my last set of flat tappets for a little while. If I can ever get to my magnum 360 and my set of roller hyd lifters...it'd be nice (not to say they won't fail though)
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You did say old 318 right? 
