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07-23-2015, 06:57 AM
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#51
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,900
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Well, theoretically tossing car in air and disconnecting converter from flexplate is "easy" then just rev it and see if noise persists.
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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07-23-2015, 09:24 AM
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#52
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Lord of the rings / 10 Second Club / Meet Coordinator
Join Date: Aug 2004
Location: Millstone Township, NJ
Posts: 6,360
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Doesn't sound like a bad idea and it would be good time to make sure they are torque'd to bink.
__________________
97 T/A Ram Air Convt
Forever dyno queen / 777rwhp 662 rwtq @ 17lbs / 10.2 @ 140
'24 Corvette Z06
17 Sierra 2500HD Dmax
81 Turbo TA
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07-23-2015, 10:11 AM
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#53
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,900
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Would guideplates make this noise?
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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07-23-2015, 10:58 AM
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#54
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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Maybe if your pushrods match your torque curve?
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07-28-2015, 07:31 AM
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#55
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,900
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Anyone have a good write up or info on how guideplates are supposed to be setup?
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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07-28-2015, 08:15 AM
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#56
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Lord of the rings / 10 Second Club / Meet Coordinator
Join Date: Aug 2004
Location: Millstone Township, NJ
Posts: 6,360
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http://www.camaroz28.com/forums/adva...inding-644923/
Not a write-up but confirms you need some clearance.
__________________
97 T/A Ram Air Convt
Forever dyno queen / 777rwhp 662 rwtq @ 17lbs / 10.2 @ 140
'24 Corvette Z06
17 Sierra 2500HD Dmax
81 Turbo TA
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07-28-2015, 08:47 AM
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#57
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,900
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Quote:
Originally Posted by Blackbirdws6
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So verify PR hits guide plate when rotating engine over, then pull over guideplates (if hitting exists) and mill depth to slot.
Depth does not matter as its not guiding PR, correct?
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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03-24-2016, 07:52 AM
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#58
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,900
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Update: Noise persists.
Swapped in adjustable guideplates and checked rockers again for damage.
At this point, the noise has been consistent with staying on one side of motor and showing itself under acceleration. Since the rockers, pushrods, lifters and guideplates have all been changed the only constant is the head. So assuming its the head, it could be valve guides, or valves themselves correct?
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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03-24-2016, 08:44 AM
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#59
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Lord of the rings / 10 Second Club / Meet Coordinator
Join Date: Aug 2004
Location: Millstone Township, NJ
Posts: 6,360
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My struggle with this is why would it only squeak during acceleration and not all the time. I wish I had an answer rather than stating the obvious. When you did the valve seals, did you feel or check for any issues with the valves?
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97 T/A Ram Air Convt
Forever dyno queen / 777rwhp 662 rwtq @ 17lbs / 10.2 @ 140
'24 Corvette Z06
17 Sierra 2500HD Dmax
81 Turbo TA
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03-24-2016, 08:47 AM
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#60
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,900
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Negative, other than they slid in out and what not easy enough to not set off red lights in my head.
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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03-24-2016, 08:52 AM
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#61
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Lord of the rings / 10 Second Club / Meet Coordinator
Join Date: Aug 2004
Location: Millstone Township, NJ
Posts: 6,360
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Then I think I would rule out valve guides.
__________________
97 T/A Ram Air Convt
Forever dyno queen / 777rwhp 662 rwtq @ 17lbs / 10.2 @ 140
'24 Corvette Z06
17 Sierra 2500HD Dmax
81 Turbo TA
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03-24-2016, 08:58 AM
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#62
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,900
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If they are too loose or something though couldn't that squeak?
__________________
Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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03-24-2016, 09:15 AM
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#63
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Lord of the rings / 10 Second Club / Meet Coordinator
Join Date: Aug 2004
Location: Millstone Township, NJ
Posts: 6,360
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If they were loose, yes it could but I don't follow why it wouldn't squeak all the time. Have you checked power steering or did we ever rule out belt tension?
__________________
97 T/A Ram Air Convt
Forever dyno queen / 777rwhp 662 rwtq @ 17lbs / 10.2 @ 140
'24 Corvette Z06
17 Sierra 2500HD Dmax
81 Turbo TA
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03-24-2016, 09:46 AM
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#64
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,900
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It does it with no belt on, its def motor related.
__________________
Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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03-24-2016, 10:08 AM
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#65
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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I'd like to give it a listen again.
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03-28-2016, 09:21 AM
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#66
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,900
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Any thoughts on a flex pipe making the noise?
__________________
Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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03-29-2016, 04:49 AM
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#67
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Join Date: Sep 2008
Location: Howell,NJ
Posts: 537
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Just an idea take a floor jack and apply slight amount of lift under motor, trans, exhaust system,turbo piping and anything else then test to see if vibration still exist. You can even jack up each side of car and test.
__________________
94 CAMARO
TURBO 3.5 LITER
12.573 @ 107.29 1/4 MILE
8.021 @ 86.38 1/8 MILE
BEST 60' 1.781
Last edited by 3.4 grape of wrath; 03-29-2016 at 05:00 AM.
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03-31-2016, 07:34 PM
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#68
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Join Date: Dec 2004
Location: manchester, NJ
Posts: 1,775
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video was taking inside the car... is the noise louder from inside the car like that? If you think its in the motor have to tried to use a stethoscope while the noise is made to pinpoint what side or area of motor the noise is coming from? i didn't read this whole post by the way. Im actually usually pretty good at finding weird noises in cars. this one is interesting though. sounds to me like a squeaking bearing or something of that nature. could it possibly be the oil drive gear or something that was changed recently due to your prior issues... just a thought
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97 Firebird Formula - 383LT1
15 Subaru WRX - 2.0L-turbo
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04-01-2016, 06:27 AM
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#69
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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He thinks its the turbo vane contacting the housing, there are rub marks....
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04-01-2016, 06:47 AM
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#70
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,900
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Quote:
Originally Posted by transmaro93
video was taking inside the car... is the noise louder from inside the car like that? If you think its in the motor have to tried to use a stethoscope while the noise is made to pinpoint what side or area of motor the noise is coming from? i didn't read this whole post by the way. Im actually usually pretty good at finding weird noises in cars. this one is interesting though. sounds to me like a squeaking bearing or something of that nature. could it possibly be the oil drive gear or something that was changed recently due to your prior issues... just a thought
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Quote:
Originally Posted by sweetbmxrider
He thinks its the turbo vane contacting the housing, there are rub marks....
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The noise has been consistent with every iteration of this motor. At the moment, like Adam said, I am leaning towards the issue being in the turbo. We shall see.
__________________
Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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04-07-2016, 07:54 PM
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#71
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,900
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For any poor soul following this train wreck, it is not the turbo. (Well it could be but not as convinced now)
How snug should the brake booster be? I can move mine around a decent amount.
__________________
Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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04-07-2016, 08:16 PM
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#72
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Stalker
Join Date: Aug 2004
Posts: 12,077
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Yea.... It shouldn't move. The four bolts by the brake pedal hold it pretty solid.
Last edited by V; 04-07-2016 at 08:16 PM.
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04-07-2016, 08:17 PM
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#73
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,900
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AFAIK its riveted to the bracket that attaches to firewall correct?
I know the master is tight, and the firewall bolts are tight.
__________________
Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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04-08-2016, 06:14 AM
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#74
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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How would that move? Throw a strap around it I guess. Mine is tight.
Last edited by sweetbmxrider; 04-08-2016 at 06:16 AM.
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04-08-2016, 07:07 AM
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#75
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Join Date: Sep 2008
Location: Hackettstown, NJ
Posts: 1,643
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How did you eliminate the turbo as a cause? I thought the bearings had a bunch of play.
__________________
1998 Z-28 - SLP lid - Ported TB - LS6 Intake - Dynatech SS headers/Catted Y - Magnaflow Exh - 3.42 - Yank SS3600 - UMI weld-in subframe connectors, Adj LCA, Adj PHB, Q1A TA - Bolt-in Relocation Brackets - Strano springs - Koni shocks - 17" C6Z06 wheels - 326HP/335ft-lbs - 12.35 @ 110.41
Quote:
Originally Posted by Blackbirdws6
I can appreciate a dream but this person needed some real friends.
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