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280zx not turning over

Old 02-17-2019, 01:53 PM
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280zx not turning over

I did a head gasket job on my n/A 1983 280zx and have no compression on all cylinders. I changed a lot of components already and doubled checked my timing. Fuel pressure is around 33 psi, and I have spark. Components that I changed so far:

- Distributor, Spark plug wires, Ignition coil, ICM, ECU, Ported vacuum switch, starter, vacuum lines, air filter

Components that I checked:

- Timing at camshaft sprocket at number 1 marking and crankshaft marking at piston #1 at TDC, fusible link which is battery voltage, fuel pump relay (all 3 relay are good), fuel pressure is at 33 psi, 0 psi on all cylinders

Just don't know what the problem is. To me it seems like there is no vacuum pressure going into the combustion chambers. I attached a link here at youtube for viewers to see what I'm talking about.

Let me know what you guys think because I'm out of options at the moment.
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