LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

car just died

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Old Nov 10, 2010 | 11:26 AM
  #1  
macsz28's Avatar
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car just died

As stated in my topic... Car just died at WOT at about 125 mph. Now car barely turns over and doesn't even come close to starting... any suggestions... below is the list of mods done to the car... I have only owned this car 1 week and this was the first time i really opened the car up... kinda a test run


Rebuilt heads – by Sauls Cylinder Head, Inc. in Savannah, Ga.
Beehive springs
Crane Cams Gold Race 1.6 S/A 3/8” RRs
Trick Flow hardened pushrods

Tri-metal 780 bearings
CC503 Cam
Moly piston rings
160 degree thermostat
Cloyes double roller timing set
CSI/CSR EWP

Cold air intake
K&N air filter
24# SVO FIs
Holley FPR
58mm BBK throttle body
TB bypass
Intake ported for 58mm TB with runners ported to Felpro gaskets
Racetronix 255 fuel pump w/harness

CAT/EGR delete
JetHot LT headers
JetHot coated Hooker y-pipe
Flowmaster catback

Jegster SFCs
Spohn LCAs
TByrne panhard bar
Eibach Sportline springs
External tranny cooler

Moser 12-bolt, 373 gears – 5,000 miles on it
Silver GM ZR1s up front with new rubber
Silver w/polished lip 17x11 ZR1 replicas in rear with 315/35/17 DRs

Auto Meter Phantom Tranny Temp gauge
Auto Meter Phantom Air/Fuel gauge with left/right bank switch
White face gauges

OBDI PCM

Last edited by macsz28; Nov 10, 2010 at 06:11 PM.
Old Nov 10, 2010 | 12:03 PM
  #2  
Kevin Blown 95 TA's Avatar
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Re: car just died

Drain your oil and see what comes out.
Old Nov 10, 2010 | 04:10 PM
  #3  
94CamaroZ28/SSClone's Avatar
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From: San Jose, California
Re: car just died

That doesn't make any sense on the issue he is having.

Originally Posted by Kevin Blown 95 TA
Drain your oil and see what comes out.
Old Nov 10, 2010 | 04:28 PM
  #4  
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From: Kissimmee, Fl, USA
Re: car just died

Check the basics...is it getting fuel? Does it have spark? Is there compression?
Old Nov 10, 2010 | 05:49 PM
  #5  
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Re: car just died

I am the farthest thing from a mechanic... and i have no tools or a garage to do or check anything. I am just curious as to what it may be. The shop its at just called a little while ago and said he thinks my timing chain may be broke. He told me he thinks that cause the rods are not moving... i think thats what he said... he told me its gonna be around 650-750$
Old Nov 10, 2010 | 07:47 PM
  #6  
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From: Midwest
Re: car just died

You might want to ask the mechanic again. The starter turns the flywheel, which is bolted to the crank. The rods are also bolted to the crank. The timing chain turns the cam.
Unless he pulled the oil pan (highly unlikely) or put a compression/leaker tester on it (fairly unlikely) I'm not sure how he could tell that the rods were not moving.
Perhaps he said the cam was not turning? He could tell this pretty easily by pulling a valve cover and seeing if the pushrods/rockers were moving. I guess a Cloyes double roller can break, but that unit is pretty strong...
Old Nov 10, 2010 | 08:37 PM
  #7  
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Re: car just died

i think he said rockers... i couldnt barely hear him... my cell was breaking up... ill call him again tomorrow just to make sure... i know he didnt pull the oil pan or check the compression
Old Nov 11, 2010 | 12:30 PM
  #8  
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Re: car just died

well just got off the phone with the actual mechanic who is working on my car... he told me there is no valve train movement what so ever... he is starting to take everything apart now and will call me back as soon as he finds out more... sounds like its gonna be expensive dammit...
Old Nov 13, 2010 | 03:46 AM
  #9  
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Re: car just died

No, that could still be your timing chain. Don't give up hope yet. Essentially your cam is not turning, so the valves are not opening and closing. In all reality, it's not as bad as what could have happened. But yeah, let's wait and see.
Old Nov 13, 2010 | 11:58 AM
  #10  
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From: Kissimmee, Fl, USA
Re: car just died

Unfortunately. that's a catastrophic failure at 125mph. The cam drives the oil pump so that non turning cam just ate your engine. Also, you might have head damage from the pistons possibly striking the valves, bending them and breaking the guides.

Be prepared for a big bill....you might even want to start looking for another engine.

Good luck.

Last edited by bw_hunter; Nov 13, 2010 at 02:51 PM.
Old Nov 13, 2010 | 02:22 PM
  #11  
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Posts: 385
From: Midwest
Re: car just died

Be sure and visually verify this. An event of this magnitude could be disastrous. Not trying to be negative, trust me. But physically observe the broken parts before approving anything else. If it is a broken timing chain and the engine has rotated, the valves could have broken the piston tops, which would pretty much have trashed the current engine. Unless number matching counts, you may be better off with another, already built, short or long block. Best of luck.
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