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914World.com _ 914World Garage _ Finding TDC?

Posted by: whitey May 14 2007, 02:49 PM

I've had my engine apart and need to find TDC for #1. I do not have my flywheel on. Which of the two fan marks is TDC and which is the timing mark? One is slightly larger.

Thanks for your help

Posted by: So.Cal.914 May 14 2007, 02:53 PM

When #1 piston is at the top and the valves are closed is TDC.

Posted by: shaggy May 14 2007, 03:16 PM

on a stock unmolested 1.7 and 2.0 fan there should be a large "0"

but then you need to make sure be pulling the driver side valve cover and making sure the #1 valves are closed.

cylinder one is driver side towards flywheel.

Posted by: bd1308 May 14 2007, 03:19 PM

A chopstick works very well to tell when the piston is at TDC

Posted by: Cap'n Krusty May 14 2007, 05:17 PM

The mark nearest the thick rib on the fan is the 28 degree BTDC mark, the other one (either a line or a "0") is the TDC mark. The Cap'n