LT1/LT4 Tech 1993-1997

Major Issues with New Build 1997 LT1

Thread Tools
 
Search this Thread
 
  #31  
Old 12-29-2010, 01:17 PM
madmax32's Avatar
In the Staging Lanes
Thread Starter
Join Date: Dec 2010
Posts: 58
Default

What should be checked now. The only thing that makes sense to do now is to redegree the Cam because it sounds like the cam is retarded.
 
  #32  
Old 12-30-2010, 07:22 AM
madmax32's Avatar
In the Staging Lanes
Thread Starter
Join Date: Dec 2010
Posts: 58
Default

Suggestions? Anyone
 
  #33  
Old 12-30-2010, 07:34 AM
craby's Avatar
April 2011 ROTM
ROTM Winner's Club
Join Date: Mar 2009
Location: Tokeland, Washington
Posts: 21,673
Default

i would take the front cover off and check the timing chain to make sure its on correctly. when this is done if the cam is installed correct i would then send the opti back to sumitt and get another sent.
 
  #34  
Old 12-30-2010, 07:55 AM
whammer3024's Avatar
ROTM Winner
ROTM Winner's Club
Join Date: May 2007
Posts: 2,222
Default

did we ever get an answer to my o2 sensor question?
 
  #35  
Old 12-30-2010, 08:35 AM
madmax32's Avatar
In the Staging Lanes
Thread Starter
Join Date: Dec 2010
Posts: 58
Default

Old O2's used during intial start new installed after car came up to temp them cooled again. Problem with lack of power has been narrowed to only getting a static compression of 95 pulled plugs and they are wet. So that leads me to a timing issue that is one of a few things timing chain installed wrong cam sprockets not installed correctly which would retard or advance the motor. and a few other things.
 
  #36  
Old 12-30-2010, 08:40 AM
madmax32's Avatar
In the Staging Lanes
Thread Starter
Join Date: Dec 2010
Posts: 58
Default

In the process of pulling the front and top of motor back apart and checking the timing chain and cam then Re-degreeing the Cam putting back together and hoping for the best. If this doesn't work I'll have to garage the car until after the Jan because funds have been completely drained 17k invested in this total rebuild which included suspension, transmission, exhaust, motor, and new convertible top.
 
  #37  
Old 12-31-2010, 02:20 AM
VALHAR's Avatar
1st Gear Member
Join Date: Jun 2010
Posts: 102
Default

If you have not started yet, do this.
1.With the engine running remove the valve cover oil cap and see how much air comes out.
The more the air the more the rings are worn.
2.Remove the fuel pump fuse and the ignition fuse and ingition lead from the coil to the opti.
Crank the engine or use the fuel pressure port to let all the fuel pressure out. Use a rag and not over a hot engine!
Now using a breaker bar at the crank shaft dampener, turn the engine by hand and listen in from the throttle body intake for any sounds of air coming out of the throttle body. If you here any air its a bad intake valve(s). The same can be done on the exhaust manifolds, hear any air then its a bad exhaust valve(s).
 
  #38  
Old 01-03-2011, 11:55 AM
madmax32's Avatar
In the Staging Lanes
Thread Starter
Join Date: Dec 2010
Posts: 58
Default

I'll check those next. But they better not bw worn everything is brand new. Should gave an update today hopefully.
 
  #39  
Old 01-04-2011, 06:52 PM
madmax32's Avatar
In the Staging Lanes
Thread Starter
Join Date: Dec 2010
Posts: 58
Default

Cam was not degreed it was off during the first install so degreed the cam in now the car won't even stay running 6 seconds. That's all. I'm taking this POS to the junk yard. 18k wasted.
 
  #40  
Old 01-05-2011, 07:59 AM
whammer3024's Avatar
ROTM Winner
ROTM Winner's Club
Join Date: May 2007
Posts: 2,222
Default

now that you know everything is set up correctly internally, go back over everything else. your tune is going to be way off now since you did it with the cam degreed wrong
 


Quick Reply: Major Issues with New Build 1997 LT1



All times are GMT -5. The time now is 03:56 AM.