Today's Posts Mark Forums Read Calendar
Go Back   NJFBOA - Home of New Jersey's Camaros and Firebirds > Tech Forums > Engine / Power / Tuning

Notices


Reply
 
Thread Tools
Old 07-23-2015, 07:57 AM   #51
LTb1ow
Mongo the Meet Coordinator
 
LTb1ow's Avatar
 
Join Date: May 2008
Posts: 16,450
iTrader: (8)
Well, theoretically tossing car in air and disconnecting converter from flexplate is "easy" then just rev it and see if noise persists.
__________________
Quote:
Originally Posted by KirkEvil View Post
repo bigals turd gen and part it out to a loving home
LTb1ow is offline   Reply With Quote
Old 07-23-2015, 10:24 AM   #52
Blackbirdws6
Lord of the rings / 10 Second Club / Meet Coordinator
 
Blackbirdws6's Avatar
 
Join Date: Aug 2004
Location: Piscataway, NJ
Posts: 6,054
iTrader: (3)
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

17 C7Z - 10.83 @ 128
17 Sierra 2500HD Dmax
81 Turbo TA
06 Merc BLS55
Blackbirdws6 is offline   Reply With Quote
Old 07-23-2015, 11:11 AM   #53
LTb1ow
Mongo the Meet Coordinator
 
LTb1ow's Avatar
 
Join Date: May 2008
Posts: 16,450
iTrader: (8)
Would guideplates make this noise?
__________________
Quote:
Originally Posted by KirkEvil View Post
repo bigals turd gen and part it out to a loving home
LTb1ow is offline   Reply With Quote
Old 07-23-2015, 11:58 AM   #54
sweetbmxrider
Meet Coordinator
 
sweetbmxrider's Avatar
 
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,060
iTrader: (12)
Maybe if your pushrods match your torque curve?
__________________
sweetbmxrider is offline   Reply With Quote
Old 07-28-2015, 08:31 AM   #55
LTb1ow
Mongo the Meet Coordinator
 
LTb1ow's Avatar
 
Join Date: May 2008
Posts: 16,450
iTrader: (8)
Anyone have a good write up or info on how guideplates are supposed to be setup?
__________________
Quote:
Originally Posted by KirkEvil View Post
repo bigals turd gen and part it out to a loving home
LTb1ow is offline   Reply With Quote
Old 07-28-2015, 09:15 AM   #56
Blackbirdws6
Lord of the rings / 10 Second Club / Meet Coordinator
 
Blackbirdws6's Avatar
 
Join Date: Aug 2004
Location: Piscataway, NJ
Posts: 6,054
iTrader: (3)
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

17 C7Z - 10.83 @ 128
17 Sierra 2500HD Dmax
81 Turbo TA
06 Merc BLS55
Blackbirdws6 is offline   Reply With Quote
Old 07-28-2015, 09:47 AM   #57
LTb1ow
Mongo the Meet Coordinator
 
LTb1ow's Avatar
 
Join Date: May 2008
Posts: 16,450
iTrader: (8)
Quote:
Originally Posted by Blackbirdws6 View Post
http://www.camaroz28.com/forums/adva...inding-644923/

Not a write-up but confirms you need some clearance.
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?
__________________
Quote:
Originally Posted by KirkEvil View Post
repo bigals turd gen and part it out to a loving home
LTb1ow is offline   Reply With Quote
Old 03-24-2016, 08:52 AM   #58
LTb1ow
Mongo the Meet Coordinator
 
LTb1ow's Avatar
 
Join Date: May 2008
Posts: 16,450
iTrader: (8)
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?
__________________
Quote:
Originally Posted by KirkEvil View Post
repo bigals turd gen and part it out to a loving home
LTb1ow is offline   Reply With Quote
Old 03-24-2016, 09:44 AM   #59
Blackbirdws6
Lord of the rings / 10 Second Club / Meet Coordinator
 
Blackbirdws6's Avatar
 
Join Date: Aug 2004
Location: Piscataway, NJ
Posts: 6,054
iTrader: (3)
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?
__________________

97 T/A Ram Air Convt
Forever dyno queen / 777rwhp 662 rwtq @ 17lbs / 10.2 @ 140

17 C7Z - 10.83 @ 128
17 Sierra 2500HD Dmax
81 Turbo TA
06 Merc BLS55
Blackbirdws6 is offline   Reply With Quote
Old 03-24-2016, 09:47 AM   #60
LTb1ow
Mongo the Meet Coordinator
 
LTb1ow's Avatar
 
Join Date: May 2008
Posts: 16,450
iTrader: (8)
Negative, other than they slid in out and what not easy enough to not set off red lights in my head.
__________________
Quote:
Originally Posted by KirkEvil View Post
repo bigals turd gen and part it out to a loving home
LTb1ow is offline   Reply With Quote
Old 03-24-2016, 09:52 AM   #61
Blackbirdws6
Lord of the rings / 10 Second Club / Meet Coordinator
 
Blackbirdws6's Avatar
 
Join Date: Aug 2004
Location: Piscataway, NJ
Posts: 6,054
iTrader: (3)
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

17 C7Z - 10.83 @ 128
17 Sierra 2500HD Dmax
81 Turbo TA
06 Merc BLS55
Blackbirdws6 is offline   Reply With Quote
Old 03-24-2016, 09:58 AM   #62
LTb1ow
Mongo the Meet Coordinator
 
LTb1ow's Avatar
 
Join Date: May 2008
Posts: 16,450
iTrader: (8)
If they are too loose or something though couldn't that squeak?
__________________
Quote:
Originally Posted by KirkEvil View Post
repo bigals turd gen and part it out to a loving home
LTb1ow is offline   Reply With Quote
Old 03-24-2016, 10:15 AM   #63
Blackbirdws6
Lord of the rings / 10 Second Club / Meet Coordinator
 
Blackbirdws6's Avatar
 
Join Date: Aug 2004
Location: Piscataway, NJ
Posts: 6,054
iTrader: (3)
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

17 C7Z - 10.83 @ 128
17 Sierra 2500HD Dmax
81 Turbo TA
06 Merc BLS55
Blackbirdws6 is offline   Reply With Quote
Old 03-24-2016, 10:46 AM   #64
LTb1ow
Mongo the Meet Coordinator
 
LTb1ow's Avatar
 
Join Date: May 2008
Posts: 16,450
iTrader: (8)
It does it with no belt on, its def motor related.
__________________
Quote:
Originally Posted by KirkEvil View Post
repo bigals turd gen and part it out to a loving home
LTb1ow is offline   Reply With Quote
Old 03-24-2016, 11:08 AM   #65
sweetbmxrider
Meet Coordinator
 
sweetbmxrider's Avatar
 
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,060
iTrader: (12)
I'd like to give it a listen again.
__________________
sweetbmxrider is offline   Reply With Quote
Old 03-28-2016, 10:21 AM   #66
LTb1ow
Mongo the Meet Coordinator
 
LTb1ow's Avatar
 
Join Date: May 2008
Posts: 16,450
iTrader: (8)
Any thoughts on a flex pipe making the noise?
__________________
Quote:
Originally Posted by KirkEvil View Post
repo bigals turd gen and part it out to a loving home
LTb1ow is offline   Reply With Quote
Old 03-29-2016, 05:49 AM   #67
3.4 grape of wrath
 
3.4 grape of wrath's Avatar
 
Join Date: Sep 2008
Location: Howell,NJ
Posts: 461
iTrader: (2)
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 06:00 AM.
3.4 grape of wrath is offline   Reply With Quote
Old 03-31-2016, 08:34 PM   #68
transmaro93
 
Join Date: Dec 2004
Location: manchester, NJ
Posts: 1,775
iTrader: (2)
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
__________________
97 Firebird Formula - 383LT1
15 Subaru WRX - 2.0L-turbo
transmaro93 is offline   Reply With Quote
Old 04-01-2016, 07:27 AM   #69
sweetbmxrider
Meet Coordinator
 
sweetbmxrider's Avatar
 
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,060
iTrader: (12)
He thinks its the turbo vane contacting the housing, there are rub marks....
__________________
sweetbmxrider is offline   Reply With Quote
Old 04-01-2016, 07:47 AM   #70
LTb1ow
Mongo the Meet Coordinator
 
LTb1ow's Avatar
 
Join Date: May 2008
Posts: 16,450
iTrader: (8)
Quote:
Originally Posted by transmaro93 View Post
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
Quote:
Originally Posted by sweetbmxrider View Post
He thinks its the turbo vane contacting the housing, there are rub marks....
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 View Post
repo bigals turd gen and part it out to a loving home
LTb1ow is offline   Reply With Quote
Old 04-07-2016, 08:54 PM   #71
LTb1ow
Mongo the Meet Coordinator
 
LTb1ow's Avatar
 
Join Date: May 2008
Posts: 16,450
iTrader: (8)
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 View Post
repo bigals turd gen and part it out to a loving home
LTb1ow is offline   Reply With Quote
Old 04-07-2016, 09:16 PM   #72
V
Stalker
 
V's Avatar
 
Join Date: Aug 2004
Posts: 11,902
iTrader: (11)
Yea.... It shouldn't move. The four bolts by the brake pedal hold it pretty solid.

Last edited by V; 04-07-2016 at 09:16 PM.
V is offline   Reply With Quote
Old 04-07-2016, 09:17 PM   #73
LTb1ow
Mongo the Meet Coordinator
 
LTb1ow's Avatar
 
Join Date: May 2008
Posts: 16,450
iTrader: (8)
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 View Post
repo bigals turd gen and part it out to a loving home
LTb1ow is offline   Reply With Quote
Old 04-08-2016, 07:14 AM   #74
sweetbmxrider
Meet Coordinator
 
sweetbmxrider's Avatar
 
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,060
iTrader: (12)
How would that move? Throw a strap around it I guess. Mine is tight.
__________________

Last edited by sweetbmxrider; 04-08-2016 at 07:16 AM.
sweetbmxrider is offline   Reply With Quote
Old 04-08-2016, 08:07 AM   #75
The_Bishop
Power Member
 
The_Bishop's Avatar
 
Join Date: Sep 2008
Location: Hackettstown, NJ
Posts: 1,519
iTrader: (3)
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 View Post
I can appreciate a dream but this person needed some real friends.
The_Bishop is offline   Reply With Quote
Reply

  NJFBOA - Home of New Jersey's Camaros and Firebirds > Tech Forums > Engine / Power / Tuning

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

» Sponsor List
















All times are GMT -5. The time now is 10:44 PM.


Powered by vBulletin® Version 3.8.9 Beta 3
Copyright ©2000 - 2019, vBulletin Solutions, Inc.