man_of_saturn
20+ Year Contributor
- 168
- 0
- Aug 31, 2002
-
Temple,
Texas
91GSX won't start (see question at bottom):
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History(short version)-
Bought GSX for 500 with tranny but no motor.
Bought motor, cleaned it up and installed it. Car didn't start after months of trouble shooting took it to performance shop. After replacing relay and CAS, shop informed me that I was getting 30psi on each cylinder. ECU also checked out good.
Had car towed back home, pulled and tore apart engine down to block and had it inspected and hone by a machine shop. Block passed inspection and hone was complete. Took block home reassembled block with new piston and new crank bearing.
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Currently-
Car won't start, verified spark (can see it on plug), verified fuel-pump is coming on and fuel gauges state so; fuel on both sides of the rail (two gauges). Check compression 1-0, 2-60,3-60,4-60 after adding oil to the cylinders 1-90, 2-135, 3-150, 4-150. Of course still no start.
---------------------------------------------------------------------------------------------------------------------------
My questions is this:
Why am I getting such low compression if i just installed new rings?
And the head didn't appear to have any bent valves and the timing was dead on.
-----------------------------------------------------------------------------------------------------------------------------
History(short version)-
Bought GSX for 500 with tranny but no motor.
Bought motor, cleaned it up and installed it. Car didn't start after months of trouble shooting took it to performance shop. After replacing relay and CAS, shop informed me that I was getting 30psi on each cylinder. ECU also checked out good.
Had car towed back home, pulled and tore apart engine down to block and had it inspected and hone by a machine shop. Block passed inspection and hone was complete. Took block home reassembled block with new piston and new crank bearing.
---------------------------------------------------------------------------------------------------------------------------
Currently-
Car won't start, verified spark (can see it on plug), verified fuel-pump is coming on and fuel gauges state so; fuel on both sides of the rail (two gauges). Check compression 1-0, 2-60,3-60,4-60 after adding oil to the cylinders 1-90, 2-135, 3-150, 4-150. Of course still no start.
---------------------------------------------------------------------------------------------------------------------------
My questions is this:
Why am I getting such low compression if i just installed new rings?
And the head didn't appear to have any bent valves and the timing was dead on.