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View Full Version : Need timing mark for 94 chevy van 5.7 L TBI

littlepink67
08-07-2007, 11:41 PM
Hi, my friend can't find the timing mark for his van on the internet or in the manual....can anyone help out? Thanks!
90C350
08-08-2007, 04:07 PM
It will be attached to the timing cover almost directly below the thermostat housing. It may not be easy to see with it in a van but normally you can look down between the accecsory brackets and the water pump and get a good look at it from there. Hope that this helps. ITs in the same spot as any small block chev.
littlepink67
08-08-2007, 05:53 PM
It will be attached to the timing cover almost directly below the thermostat housing. It may not be easy to see with it in a van but normally you can look down between the accecsory brackets and the water pump and get a good look at it from there. Hope that this helps. ITs in the same spot as any small block chev.


Thanks for your help, more specifically though he needs the degree of timing for that motor. It's a tough question to get an answer to......Thanks to all for your help with this one....
littlepink67
08-08-2007, 06:17 PM
Do you know what degree to set the timing to? i.e. 0, 10, 6, 8.....TKU
DefEddie
08-08-2007, 06:40 PM
Put the #1 cylinder at TDC, and put the rotor bug to point at the #1 cylinder and drop in the dist.
Start her up.
Same procedure in all of them till you get to the LS engine's i'm pretty sure.
At least that's how I time my 96-newer vortec motor's,the computer will time it you just have to get it within a tooth. It will let you know if you off a tooth with a code,if it's 180 out it will backfire through the intake.
90C350
08-08-2007, 07:12 PM
You need to disconnect the esc timing connector generaly located by the main fusible link cover or near the disty, its a single wire. Once you disconect that you can start the engine and set the timing to 0* that is what the stock ecm is programed for. If you dont disconect the est timing wire your timing will probably read up around 20* or more at idle warmed up. That would be BFTDC. Advanced. Once you set it to 0* you can shut it off and reconnect the est wire and you should be good to go!! Hope that is a decent explanation???
littlepink67
08-08-2007, 09:45 PM
Thanks so much for your help! He'll give it a go.....