Howell Install advice?

[GWD6]

Within the next couple of weeks I'll be installing a new Edelbrock Performer Intake Manifold (with EGR) along with the Emissions Legal Howell TBI kit on my 1984 Grand Wagoneer.

I'm fairly mechanically inclined and plan on doing this solo. The only thing I'm going to need outside help on (I think/hope) is welding the Oxygen Sensor bung on the exhaust.

If any of you that have already installed this system can offer any pointers I would sure appreciate it.

Thanks

[Texas Walter]

I also plan to do the same one day so Ill be fallowing this looking for advice

[men in black]

I needed to install a new y pipe, so I had the bung weld on first.

Addicted is installing my Howell TBI over the winter.,

[blthomas]

I was looking at their systems online. Do they come with the bung? I see alot of stuff in a picture on my phone but can't see a bung.

If it's the standard 18x1.5 pitch, I've used spark plug non foulers from the help section at Advance Auto. Stepper bit to drill in the hole then made a pass with the mig around it.

Before I had a welder, I JB welded one in.

[GWD6]

I was looking at their systems online. Do they come with the bung? I see alot of stuff in a picture on my phone but can't see a bung.

If it's the standard 18x1.5 pitch, I've used spark plug non foulers from the help section at Advance Auto. Stepper bit to drill in the hole then made a pass with the mig around it.

Before I had a welder, I JB welded one in.

Yes, the kit does come with a bung.

[Achilles]

If not a welder you can google this. AEM 30-2355-250 - AEM No-Weld O2 Sensor Mount. http://www.jegs.com/p/AEM/AEM-No-Wel...34708/10002/-1 I purchased one but have not began my install yet.

[babywag]

Any good exhaust shop can weld the bung in.
Cost will depend on the shop, but probably ~$25-$40 depending on their rates etc.
It can be done without removing the y-pipe.

I suggest bringing the o2 sensor with you, so they can ensure bung gets welded in the correct orientation/location.
They can be mistakenly welded in as to interfere with loosening/removing the y-pipe-manifold flange nuts. (ask me how I know)

[BigOberg]

Just make sure you keep your bunghole as tight as possible!

[GWD6]

Thanks for the advice so far.

Stupid question, on which side of the engine does the bung go?

[Billygoat]

I believe the emissions legal kit you have uses a heated o2 sensor - so put it after the Y pipe to monitor both banks

[babywag]

Thanks for the advice so far.

Stupid question, on which side of the engine does the bung go?

Easiest spot is ~3-4" below driver's side manifold.
Not a lot of room anywhere else unless you drop the y-pipe.
Really no need to monitor both banks with TBI anyway.

[Fleg]

I just welded mine in last night. Driver side but my Y pipe is different due to headers. I'd suggest going with a heated sensor if you start getting far away from the engine.

[Bill USN-1]

The O2 sensor should be as close to the manifold as possible. The sensor needs to reach 600* for the system to go into closed loop.
If you have headers then use a 3 wire o2 and put it in the collector of one header. The 3 wire has a heater built in and gets the sensor up to temp quicker.
At no time should you move the sensor further away from the engine nor is there a reason to monitor all cylinders by putting it past the Y pipe.
The extra distance will cause problems due to the delay in signal from the sensor to the engine exhaust output.

.

[GWD6]

The O2 sensor should be as close to the manifold as possible. The sensor needs to reach 600* for the system to go into closed loop.
If you have headers then use a 3 wire o2 and put it in the collector of one header. The 3 wire has a heater built in and gets the sensor up to temp quicker.
At no time should you move the sensor further away from the engine nor is there a reason to monitor all cylinders by putting it past the Y pipe.
The extra distance will cause problems due to the delay in signal from the sensor to the engine exhaust output.

.

Great thing to know!

Thanks!!