Mechanics

SPARK NOT ON COMPRESSION STROKE

2003 Toyota Rav4 • 215,000 miles

I rebuilt the engine. I'm trying to start it, but the spark is not on the compression stroke. It's 180 degrees off. I was very careful to make sure the chain and all marks lined up. Could this be a problem with the cam position sensor, or is it something else. Thanks in advance.
Avatar
Rsdin559
September 17, 2012.




Put it on compression stroke on #1 cyl. Then turn the crank until the piston gets to tdc. Check the timing marks if they line up or not?


Cadieman
Sep 18, 2012.
If the ignition timing is 180 off, the timing chain installation should be correct. Either the crank position or camshaft position sensor plate is installed reversedly.
AD


KHLow2008
Sep 18, 2012.
Most probably this is where you went wrong.


KHLow2008
Sep 18, 2012.

AD