Need Drill & Tap Sizes, 2.0 Head Missing T-2 Sensor Option Options

[d7n7master]

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So, okay - I'm in the (hopefully) final bits & pieces stage of git 'r done.
- D-Jet / 2165 -
... I'm attaching the engine tin to the new engine when I notice that there is a blank boss on the head of my new longblock - right where my (old) engines head has my T-2 sensor attached. -Not funny- (IMG:http://www.914world.com/bbs2/html/emoticons/wacko.gif)
Unless I'm missin' something, I think I need to drill & tap to add my t-2 sensor.
Anybody know d & t sizes???
Thanx,
Gary
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[Dave_Darling]

QUOTE (d7n7master @ Jan 8 2006, 01:03 PM)

I was wondering if there isn't a way to "fool" the T-2 sensor into reading an appropriate value. I'm in O.C. Ca. - Cold start isn't an issue...

You can't fool the sensor itself. However, you can substitute a ~4K ohm potentiometer for it--hook up the pot to the wire that would plug into the HTS, and run a separate ground wire to the pot. This will let you dial in the appropriate amount of resistance for various running conditions.

It gives you more than enough adjustability to totally screw everything up! (Guess how I know that?)

The HTS is not just for cold-start. It comes into effect the whole first 5-10 minutes that the engine is running, and affects the mixture in a continuous fashion. The cold-start stuff is either on or it's off.

The engine usually will not start at all with the HTS disconnected. Usually the mixture will be too rich.

--DD