Timing

reed · #1 07-07-2009, 07:07 AM

Not pump timing with a dial gauge but with a timing light. Has anyone ever used one and what do you set it at. Or is it a more accurate way to set than a dial gauge. I have one but never hooked it up.

Jason · #2 07-07-2009, 11:15 AM

The timing isn't meaured in degrees, and theres nothing to trip the light with since there are no plug wires. You aren't going to find a more accurate way to set the timing than with the dial gauge. You are measuring it at the pump where its happening. Even on the newer diesels like the TDI, timing is done through the cars pcm with vag-com, but you are still measuring the timing in mm of pump stroke.

Jason

reed · #3 07-07-2009, 12:14 PM

Look for a diesel timing light, I know what im talking about. It clamps to the injector pipe.

Jason · #4 07-07-2009, 12:27 PM

Where are you going to time it to? There is only a notch on the flywheel/flexplate for TDC, and its not very easy to see. I cant see how that can be any more accurate than timing from the pump itself with a quality dial indicator.

Jason

reed · #5 07-07-2009, 12:59 PM

Thats what I'm asking, how do you time it? I have a diesel timing light, but I don't know enough about it to mess with it. By my understanding timing it with a light is more accurate. I don't want to start a argument about it, I'm just looking for more information.

cuaz64 · #6 07-07-2009, 03:51 PM

Well, from what I know you can't use timing light for the D24T. IMO the standard timing tools is the best tool to adjust timing. IIRC you can measure the exact injection point (in crackshaft degrees?) and the pump stroke. Maybe you know, but you can find good info about the D24T in http://volvoturbodiesel.blogspot.com/:)