Help me ID this noise.. (video inside)
03-31-2007, 04:38 PM
#1
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Help me ID this noise.. (video inside) Car has a TR224 cam, FLP Longtubes, no cats, comp 918s, ti retainers
I have had a weird 'chirp' for a while. It would still be there even if all the belts are off. It would come & go..
I changed my clutch out a few weeks back, and like two days later, this really loud ticking developed. The car wasn't over revved or anything.
Today I:
changed the oil, cut open filter, no metal shavings... ran old oil against magnet, nothing stuck.
took off valve covers, inspected springs & rockers.. nothing broken. I loosened & retorqued all rockers to 22lb/ft
Replaced header gaskets with percy's dead soft aluminum gaskets.
Checked all exhaust flanges, tightened, etc. (FLPs like to leak)
It's still doing it.. Is it the sound of a bad lifter or a spun bearing or something? Oil pressure is fine..
http://www.youtube.com/watch?v=kXKJvoIW0ps
I have had a weird 'chirp' for a while. It would still be there even if all the belts are off. It would come & go..
I changed my clutch out a few weeks back, and like two days later, this really loud ticking developed. The car wasn't over revved or anything.
Today I:
changed the oil, cut open filter, no metal shavings... ran old oil against magnet, nothing stuck.
took off valve covers, inspected springs & rockers.. nothing broken. I loosened & retorqued all rockers to 22lb/ft
Replaced header gaskets with percy's dead soft aluminum gaskets.
Checked all exhaust flanges, tightened, etc. (FLPs like to leak)
It's still doing it.. Is it the sound of a bad lifter or a spun bearing or something? Oil pressure is fine..
http://www.youtube.com/watch?v=kXKJvoIW0ps
03-31-2007, 08:16 PM
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I have the exact same noise comming from the drivers side on the bottom. I dont know what mine is either but it drives me crazy. I think im going to try a different kind of oil to see if it goes away. Good luck i will be monitoring this thread closely.
03-31-2007, 08:36 PM
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bad lifter mine made a scraping tapping sound and i pulled mine out last week and the lifters were pitted and the cam lobe was messed up
guarantee it's the same thing
guarantee it's the same thing
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03-31-2007, 09:34 PM
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well it messed up my $400 cam and i am now ordering a bigger $400 cam , but i think it hurt my cam from driving it like that unless the lobe was going bad and made the lifter go bad too
03-31-2007, 09:41 PM
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Whats all needed to swap lifters?
I heard the head bolts are torque to yield or whatever, so I assume those must get replaced?
How much doe OE replacements run? I'm on a tight budget right now.. Any way to test the lifters before I pull the heads?
I heard the head bolts are torque to yield or whatever, so I assume those must get replaced?
How much doe OE replacements run? I'm on a tight budget right now.. Any way to test the lifters before I pull the heads?
03-31-2007, 09:54 PM
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my list was
gm racing lifters $217
arp head studs $239 optional
gm mls head gaskets $43
new cam $400
cam swap gasket kit $68
new upper fast intake gaskets $55
or you can get the tsp basic head and cam gasket kit $149
you choice of cam $3++
ls7 replacment lifters from scoggin dickey $99
gm racing lifters $217
arp head studs $239 optional
gm mls head gaskets $43
new cam $400
cam swap gasket kit $68
new upper fast intake gaskets $55
or you can get the tsp basic head and cam gasket kit $149
you choice of cam $3++
ls7 replacment lifters from scoggin dickey $99
03-31-2007, 09:57 PM
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BUUT don't take my word for it and start ordering stuff but the only way to really find out is to tear it down before it gets worse and destroys your motor
i took my valve covers off three time before i decided to pull the heads and it wasn't until then i couldn't see my problem
i took my valve covers off three time before i decided to pull the heads and it wasn't until then i couldn't see my problem
Last edited by mushroom281; 04-01-2007 at 12:08 AM.
03-31-2007, 11:27 PM
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Oh great more **** that i need to replace. I have a tune next week and im not going to be able to afford to change heads, cam, lifters, etc. until november, hopefully it will last until then.
04-01-2007, 02:21 AM
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Hey my car was making the same noise and i started thinkin everything that you guys are and i was really gettin pissed off but on a closer look it turned out that the starter was hanging up, i would check it to make sure that its disingauging all the way, could be a simple(cheap) fix...just my 2 cents
04-01-2007, 03:10 PM
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Originally Posted by Sweet71
Hey my car was making the same noise and i started thinkin everything that you guys are and i was really gettin pissed off but on a closer look it turned out that the starter was hanging up, i would check it to make sure that its disingauging all the way, could be a simple(cheap) fix...just my 2 cents
04-01-2007, 06:04 PM
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Your push rods could be bent also. Mine had a similar sound from the passenger side- just all of a sudden, it seemed like. I pulled off the V/C and loosened a few rocker arms, pulled out a few rods and there it was! I was amazing that the car even ran! I then pulled both valve covers and revealed several mis-shapen and bent push rods. They were accually rubbing out or wollering out their guide holes in the head...
No more noise! This happened at about 171K on my 98.
Hope this helps
No more noise! This happened at about 171K on my 98.
Hope this helps
04-01-2007, 10:01 PM
#18
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Originally Posted by autotrix
Your push rods could be bent also. Mine had a similar sound from the passenger side- just all of a sudden, it seemed like. I pulled off the V/C and loosened a few rocker arms, pulled out a few rods and there it was! I was amazing that the car even ran! I then pulled both valve covers and revealed several mis-shapen and bent push rods. They were accually rubbing out or wollering out their guide holes in the head...
No more noise! This happened at about 171K on my 98.
Hope this helps
No more noise! This happened at about 171K on my 98.
Hope this helps
04-02-2007, 01:31 AM
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Originally Posted by Long Beach
What do you mean the starter was hanging up, could you discribe this more? I want to check everything before i splurge on more parts for new cam, lifters, gaskets, etc...