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01-05-2012, 08:47 PM
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#51
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Join Date: Jun 2007
Location: Arm pit of the world... NJ
Posts: 2,676
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Quote:
Originally Posted by 1984camaroz28
Pull the valve covers...
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This!
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John
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01-05-2012, 08:52 PM
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#52
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Join Date: Sep 2006
Location: north jersey
Posts: 1,680
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Quote:
Originally Posted by Featherburner
This!
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x2 !
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01-05-2012, 10:04 PM
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#53
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Join Date: Jul 2009
Location: barnegat nj
Posts: 1,340
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Quote:
Originally Posted by alamantia
I hear the loud knock we are talking about like 3 times in that clip, but I hear a lesser tap more in sequence with the RPM of the motore in the backround. Maybe this is stupid thinking here but is it possible that a broken exhaust pushrod or rocker is allowing the cylinder to fire and that loud bang is a backfire thru the intake? Is that possible or am I stupid? Its not hard to yank valve covers...
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I listened to the vid. I have heard that exact noise come from a broken rocker. sounds like combustion popping back through the intake.
Jake pull valve covers. and if you find broken rocker or pushrod, pull intake too cause I guarrantee the intake port is melted to shiiieet from the combustion coming back through the intake. I know this cuz a scorpion rocker broke on me and did this exact thing!!!
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Quote:
Originally Posted by SRGN
I never pulled into the staging beams at the track and saw a dyno in the other lane.
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South Jersey Racecraft
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01-05-2012, 10:47 PM
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#54
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13 Second Club / Moderator
Join Date: Jan 2005
Location: Franklin Lakes, NJ
Posts: 8,684
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Quote:
Originally Posted by S.J.SLEEPER
I listened to the vid. I have heard that exact noise come from a broken rocker. sounds like combustion popping back through the intake.
Jake pull valve covers. and if you find broken rocker or pushrod, pull intake too cause I guarrantee the intake port is melted to shiiieet from the combustion coming back through the intake. I know this cuz a scorpion rocker broke on me and did this exact thing!!!
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Thanks fellas. I was planning on pulling the valve covers tomorrow morning. This question may seem silly, but how can I check for a bent/broken pushrod? Will it be obvious? My plan at this point is pop the covers and if I see nothing amiss, to have someone turn the crank to see if all the rockers are operating as they should.
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Quote:
Originally Posted by LS1ow
Except Jersey mike, great kid, but the way he looks at me makes me feel like im in danger
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01-06-2012, 05:33 AM
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#55
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Join Date: Sep 2006
Location: north jersey
Posts: 1,680
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just have to pull them out and inspect them, roll them on a flat surface and you will see if they are bent. someone correct me if im wrong but couldnt he take the plugs out, pull the coils off and have someone crank the motor while he or someone looks at it without the covers on. then he could inspect the motor while it turns over without the engine running.
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01-06-2012, 08:23 AM
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#56
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13 Second Club / Moderator
Join Date: Jan 2005
Location: Franklin Lakes, NJ
Posts: 8,684
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Sadly, I think pulling the valve covers is easier than getting to the plugs. I suppose that will be my next step if pulling the valve covers yields no answers.
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Quote:
Originally Posted by LS1ow
Except Jersey mike, great kid, but the way he looks at me makes me feel like im in danger
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01-06-2012, 11:31 AM
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#57
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13 Second Club / Moderator
Join Date: Jan 2005
Location: Franklin Lakes, NJ
Posts: 8,684
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Do I still need to pull the drivers side?
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Quote:
Originally Posted by LS1ow
Except Jersey mike, great kid, but the way he looks at me makes me feel like im in danger
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01-06-2012, 11:32 AM
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#58
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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Curt for the bullseye!
Quote:
Originally Posted by qwikz28
Do I still need to pull the drivers side?
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For what it's worth that's kind of good news.
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01-06-2012, 11:32 AM
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#59
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12 Second Club / Bullwinkle
Join Date: Oct 2010
Location: Old Bridge, NJ/Corpus Christi, TX
Posts: 1,847
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Thank god thats all it is...
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1994 Medium Patriot Red Z28 6spd
370ci/Huron Speed T6 S480 ET-R HO
Quote:
Originally Posted by Jersey Mike
Quote:
Originally Posted by WSex
who is FFB?
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An NJFBOA legend. Ask about him at the next meet.
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01-06-2012, 11:33 AM
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#60
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,896
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And that is why I will leave the aluminum to beer cans.
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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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01-06-2012, 11:36 AM
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#61
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Join Date: Feb 2005
Location: Orange County NY
Posts: 579
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Put stock rockers back on it.. that all we run on are hyd roller stuff
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2000 Camaro 25.5 Turbo car X275
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01-06-2012, 11:43 AM
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#62
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13 Second Club / Moderator
Join Date: Jan 2005
Location: Franklin Lakes, NJ
Posts: 8,684
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Quote:
Originally Posted by WildBillyT
Curt for the bullseye!
For what it's worth that's kind of good news.
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Quote:
Originally Posted by coolmanvette75
Thank god thats all it is...
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Amen to that!
Quote:
Originally Posted by 1984camaroz28
Put stock rockers back on it.. that all we run on are hyd roller stuff
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Don't have them. Broke those too
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Quote:
Originally Posted by LS1ow
Except Jersey mike, great kid, but the way he looks at me makes me feel like im in danger
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01-06-2012, 12:09 PM
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#63
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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How bout the intake
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01-06-2012, 12:23 PM
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#64
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Stalker
Join Date: Aug 2004
Posts: 12,077
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i have a full set of stock rockers with stands, they are urs free if u want
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01-06-2012, 12:32 PM
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#65
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,149
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Quote:
Originally Posted by qwikz28
Do I still need to pull the drivers side?
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yes for when you replace them too.
WTF, what brand were those?
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Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
Feather-light suspension, Konis just couldn't hold. I'm so glad I took a look inside your showroom doors.
Hey everybody, it's good to have you on the Baba-too-da-ba-too-ba-ba-buh-doo-ga-ga-bop-a-dop
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01-06-2012, 12:48 PM
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#66
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Join Date: May 2006
Location: Midland Park, NJ
Posts: 1,389
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Damn, man, i was hoping it was something simple like a starter, but it appears my second guess was right, rockers are no big deal either though. I run a TR230 cam with PAC 1518 springs and hardened pushrods and I left the stock rockers in mine.
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01-06-2012, 12:53 PM
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#67
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13 Second Club / Moderator
Join Date: Jan 2005
Location: Franklin Lakes, NJ
Posts: 8,684
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Quote:
Originally Posted by V
i have a full set of stock rockers with stands, they are urs free if u want
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Yes please. Can I pay you for them in cash or beer at least?
Quote:
Originally Posted by BonzoHansen
yes for when you replace them too.
WTF, what brand were those?
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Those were Yella Terras. I originally put them in my car when I did my first cam, Josh swapped them out when he realized I had put them with incorrect length pushrods, and we decided that the stockers were better. When that motor blew, the rockers broke when the head blew a hole in it, TTP put the Yella Terras back in to save some money instead of having to purchase new rockers. They said it would be better with the large cam they were throwing in the motor as well. I just did some searching on Tech and it seems that these rockers have a tendency to break and although once popular, people are now avoiding them like the plague.
I was jumping for joy when I found the broken rocker. I was dreading having to replace the short block. Thank you all very much for helping me with guidance throughout all this; especially Anthony (Alamantia) who loaned tools, came out to check out the car for me, has been in constant correspondence via calls and texts to tell me what to do, and for most of all, for encouraging me to continue looking for the problem and not giving up.
Gosh, that sounded like an award acceptance speech.
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Quote:
Originally Posted by LS1ow
Except Jersey mike, great kid, but the way he looks at me makes me feel like im in danger
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01-06-2012, 12:54 PM
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#68
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13 Second Club / Moderator
Join Date: Jan 2005
Location: Franklin Lakes, NJ
Posts: 8,684
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Quote:
Originally Posted by alamantia
Damn, man, i was hoping it was something simple like a starter, but it appears my second guess was right, rockers are no big deal either though. I run a TR230 cam with PAC 1518 springs and hardened pushrods and I left the stock rockers in mine.
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I'd call it a victory. Everyone was saying it was a spun bearing. Thanks again man. I owe you a beer at the very least. See the above post.
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Quote:
Originally Posted by LS1ow
Except Jersey mike, great kid, but the way he looks at me makes me feel like im in danger
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01-06-2012, 01:08 PM
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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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Once you posted that video, it was pretty clear that you were blowing compression out. Glad you found the issue and that its not the end of the world......or motor.
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01-06-2012, 01:17 PM
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#70
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Join Date: Jul 2009
Location: barnegat nj
Posts: 1,340
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DO NOT get all excited yet Jake.
1) I can almost guarantee that you will need to replace intake or atleast epoxy & grind it due to the backfiring through the intake
2) you will need to pull the head off,....sorry to tell you this, but very common for when rocker breaks, the pushrod beats around on top of lifter and pops out the retaining clip, which then releases thelifter body & spring from its case.
3) OR... you can use your 20/20 vision and a flashlight to look down in hole to confirm clip is completely seated, but MAKE SURE 110% that it is.
Cuz if you don't, the lifter will evebtually come dissasembled down the road and circulate into the rest of your engine. And then you will no longer be getting off easy.
p.s. make sure you find the rest of the rocker (hardened seat part)
__________________
Quote:
Originally Posted by SRGN
I never pulled into the staging beams at the track and saw a dyno in the other lane.
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South Jersey Racecraft
Last edited by S.J.SLEEPER; 01-06-2012 at 01:21 PM.
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01-06-2012, 01:24 PM
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#71
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Join Date: Jul 2009
Location: barnegat nj
Posts: 1,340
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Quote:
Originally Posted by WildBillyT
Curt for the bullseye!
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Thanks, As soon as I heard the noise in video I knew exactly what it was!!!
I'm not to familiar with lulz,negg,first beer or any other of that jrz sho ebonics....but I do know Ls's... and unfortunetly the other boat anchors that GM produced.
__________________
Quote:
Originally Posted by SRGN
I never pulled into the staging beams at the track and saw a dyno in the other lane.
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South Jersey Racecraft
Last edited by S.J.SLEEPER; 01-06-2012 at 01:25 PM.
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01-06-2012, 01:42 PM
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#72
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,149
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Quote:
Originally Posted by S.J.SLEEPER
DO NOT get all excited yet Jake.
1) I can almost guarantee that you will need to replace intake or atleast epoxy & grind it due to the backfiring through the intake
2) you will need to pull the head off,....sorry to tell you this, but very common for when rocker breaks, the pushrod beats around on top of lifter and pops out the retaining clip, which then releases thelifter body & spring from its case.
3) OR... you can use your 20/20 vision and a flashlight to look down in hole to confirm clip is completely seated, but MAKE SURE 110% that it is.
Cuz if you don't, the lifter will evebtually come dissasembled down the road and circulate into the rest of your engine. And then you will no longer be getting off easy.
p.s. make sure you find the rest of the rocker (hardened seat part)
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can he use a bore scope to look?
i'd still rather do lifters then a whole bottom end!
__________________
Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
Feather-light suspension, Konis just couldn't hold. I'm so glad I took a look inside your showroom doors.
Hey everybody, it's good to have you on the Baba-too-da-ba-too-ba-ba-buh-doo-ga-ga-bop-a-dop
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01-06-2012, 01:55 PM
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#73
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12 Second Club / Bullwinkle
Join Date: Oct 2010
Location: Old Bridge, NJ/Corpus Christi, TX
Posts: 1,847
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Quote:
Originally Posted by S.J.SLEEPER
Thanks, As soon as I heard the noise in video I knew exactly what it was!!!
I'm not to familiar with lulz,negg,first beer or any other of that jrz sho ebonics....but I do know Ls's... and unfortunetly the other boat anchors that GM produced.
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Hey thats me
Qwikz, what intake are you running? Now might be a good time to upgrade if your current one id damaged...
__________________
1994 Medium Patriot Red Z28 6spd
370ci/Huron Speed T6 S480 ET-R HO
Quote:
Originally Posted by Jersey Mike
Quote:
Originally Posted by WSex
who is FFB?
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An NJFBOA legend. Ask about him at the next meet.
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01-06-2012, 02:01 PM
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#74
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,896
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More importantly, if this is not the first time this has happened, you should figure out what in your valvetrain is causing your rocker to be the weak link.
Too much spring pressure, or to much pushrod travel etc etc
__________________
Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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Last edited by LTb1ow; 01-06-2012 at 02:02 PM.
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01-06-2012, 03:03 PM
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#75
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Power Member/NJFBOA Bookie/Moderator
Join Date: Jun 2009
Location: North Jersey = Best Jersey.
Posts: 4,435
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Jake,
Glad you two were able to wrench on it today and figure it out. If you end up needing to replace the intake, I have my stock manifold tucked away in storage that you can have.
__________________
1995 Firebird... Stock-ish.
Quote:
Originally Posted by LS1ow
Good. He microwaved my phone 6 years ago, i hope his intake erupts.
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