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Hope it Don't End Up Like The 6

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DNK

DNK

Great Pumpkin
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Started on the winter projects yesterday,have a couple of available days. 'cept the sons soccer tourney this weekend.

Started fitting the headers to mark for the O2 sensors. Anybody know if it is OK to install @ a 12:00 position?
Ran into a couple of snags.
Excerpts from Woody's forum:

Have some issues with fitting the Woody headers.

Drivers Side
On my engine on the # 3 head bolt it is a long headed deal with threads in the end to hold the dip stick in place. The headers will not fit with it in place

DSCF3845.jpg


DSCF3847.jpg


Then to the left of the #2 bolt there is a funky plug for probably an air pump inlet . The other 3 have screw heads and are recessed. this one is like so and interferes with the headers.

DSCF3848.jpg


I need a screw style.,anyone.

Also the end of the headers seem to hit the trans mounting plate . Is that a normal occurrence?

Last question. Is the end where the two tubes go together to far from the motor for a O2 sensor?



Thanks
 
Don,

I don't know about the first issue, but if you can get that air pump line out of the head and replace it with a countersunk hex head flat brass plug, you'll be fine.
 
DNK said:
Started fitting the headers to mark for the O2 sensors. Anybody know if it is OK to install @ a 12:00 position?
Click to expand...

I've got the stock manifold & downpipe with an 02 sensor and you want to position it in a place where condensation won't collect after you turn the car off. Other then that you're pretty open to a location.

O2%20Bung2.jpg


O2%20Bung1.jpg
 
Let me be thorough. It is a V8 Wedge
Also had a question on distance from the motor.What is too far?

DSCF3851.jpg


Paul got the air line out and will replace it with a set screw. the size that came out is a 1/2 by unknown pitch. Maybe pipe thread?
 
Don,

It probably is pipe thread. Take it along to the hardware store.

I must have been sleeping on your original post. NGK has a requirement that the sensor be as Bob said, in a position that will allow condensation to NOT become trapped in the sensor, so an angle style installation is a must.

But I do believe that it must be at least 12" away from the head and not more than 36". The problem is that I can't find the instructions, but before I dig on line, what does your say?

Here was my installation: Air Fuel Ratio Meter
 
Not an air fuel meter. Computer. and I hope to piggy back an Innovate set up to it.If it is 36 I'm hosed and will have to install it in 1 of the primaries. Wanted to include all one side on the readings.
Was thinking of installing it at the top of the collector
 
Air pump lines on my Spit were not pipe thread. Changed them out with some Allen set screws from the local hardware place. Can't recall what they were, but I think it will be something like a brake fitting thread.

Randy
 
That close would be fine, if it's no more than 36". I would agree that you would want to capture an entire bank, if not both.
 
Brosky said:
That close would be fine, if it's no more than 36". I would agree that you would want to capture an entire bank, if not both.
Click to expand...
Plan on running both sides with seperate sensors. Will install 2 gauges on the dash.
 
OK, here it is from the NGK manual:

<div class="ubbcode-block"><div class="ubbcode-header">Quote:]The AFR sensor should be located between 12” and 48” from the engine, upstream of any catalyst device if so equipped. The closer the sensor is to the engine, the more likely it will be overheated, possibly shortening its life. The further it is from the engine, the more likely condensed water will get into the sensor and thermally shock it, again possibly shortening its life. The sensor should be mounted at least ten exhaust diameters upstream of the exhaust exit (ex. for a 3” exhaust pipe, that is 30”). If the sensor is mounted between one and ten exhaust diameters from the exhaust exit, the AFR measured will be leaner than the actual AFR by as much as 2 AFR at low engine speeds (i.e. less than 3000 rpm).[/QUOTE]

I would say go for it.
 
That information sounds like it's for a heated O2 sensor. None heated O2 sensors need to be pretty close to the head or they won't get hot enough to function properly.
 
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