TDC checking tool
With this tool, you can check the accuracy of your timing tab to the mark in your Harmonic Balancer indicating Top Dead Center ON AN ASSEMBLED ENGINE.
Have you ever questioned the accuracy of the TDC mark on an engine you are testing? Did the damper outer ring slip? Did the engine builder skip that critical step of authenticating that the TDC mark is exactly right? I have been there many times. There has never been an easy and accurate way to confirm the TDC mark is accurate, UNTIL NOW!
I use this tool all the time on the dyno, and I can guarantee there is not another method that is quicker or more accurate.
The principal of this tool is that when the valves are closed, any time the piston moves UP, air will be displaced. The ball in this flowmeter is so sensitive that ANY air displaced will move the ball a visual amount. If you turn the crank slowly, the ball will STOP MOVING when you are at TDC. I find by going back and forth right around TDC, you can dial in the exact Top Dead Center position within 1 degree.
YOU MUST TURN THE CRANK BY HAND...
Perfect for finding out where the camshaft is degreed AFTER the engine is assembled.
Do it on the engine stand, on the DYNO, or IN THE CAR!
**NOTE** Shown with optional Spark plug hole hose adapter...
122-2433 Flowmeter kit with everything to hook up to YOUR spark plug hole hose. This ONLY includes the RED hose in picture (3/8" ID)
If you do not have the hose that threads into the spark plug hole,