2003 S40 Timing Questions
I'll explain my problem as clear as possible --
I bought a 2003 Volvo S40 with a blown head gasket. I purchased the special tool to lock the cams in place, removed the VVT gear and everything else. I have placed the new head gasket on, torqued the head and valve cover on, but now I'm having a difficult time making sure that I have the timing correct and that I replaced the VVT gear back on correctly. I decided to do the timing belt, water pump, idler pulley, and tension pulley at the same time. I have the new belt on, but I want to make sure that I'm where I need to be. I've lined up the two notches on the cams with their corresponding notches, I tried my best to make sure the crank was in the right position, but now I'm second guessing myself. When I rotate the crank 2x, my cams line up with the cover marks, but I'm thinking there's a possibility that I'm exactly 180 degrees off on my crank. I can't get the dust cover bolt off the block under the starter to align the piston, so I'm left to sticking a rod down the spark plug hole to see where the piston is.
Here are the two big questions I have. First, where should cylinder piston 1 (furthest to drivers side) be when cams are aligned with the cover marks?
Second, How do I know that I put the VVT gear back on correctly? (It free spins until torqued down).
Any information that can assist me in making sure that I have timing correct would be greatly appreciated. As far as I understand this is an interference motor, which means a mistake will be costly.
Oh, and that reminds me of another question - if I can turn the crank while connected to the cams and I can do so without significant resistance, does this mean my timing is correct, or is this a false positive?
Thanks in advance for the help!
I bought a 2003 Volvo S40 with a blown head gasket. I purchased the special tool to lock the cams in place, removed the VVT gear and everything else. I have placed the new head gasket on, torqued the head and valve cover on, but now I'm having a difficult time making sure that I have the timing correct and that I replaced the VVT gear back on correctly. I decided to do the timing belt, water pump, idler pulley, and tension pulley at the same time. I have the new belt on, but I want to make sure that I'm where I need to be. I've lined up the two notches on the cams with their corresponding notches, I tried my best to make sure the crank was in the right position, but now I'm second guessing myself. When I rotate the crank 2x, my cams line up with the cover marks, but I'm thinking there's a possibility that I'm exactly 180 degrees off on my crank. I can't get the dust cover bolt off the block under the starter to align the piston, so I'm left to sticking a rod down the spark plug hole to see where the piston is.
Here are the two big questions I have. First, where should cylinder piston 1 (furthest to drivers side) be when cams are aligned with the cover marks?
Second, How do I know that I put the VVT gear back on correctly? (It free spins until torqued down).
Any information that can assist me in making sure that I have timing correct would be greatly appreciated. As far as I understand this is an interference motor, which means a mistake will be costly.
Oh, and that reminds me of another question - if I can turn the crank while connected to the cams and I can do so without significant resistance, does this mean my timing is correct, or is this a false positive?
Thanks in advance for the help!
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Answers
As an electrical engineer the question reminds me of the method to sync a 3-phase generator to the power grid. We did it with 3 lightbulbs, each one would light whenever a one of the lines was out of phase. Maybe there is a similar tool/technique to align camshaft with crankshaft as you mention here.