Tune up list

[Ryan96WS6]

With 114K miles it is time for some fresh parts. A drop in gas mileage and a increase in my ET at the track are the biggest reasons for this.
Here is what I am planning on. Looking for your thoughts, additions, or subtractions.

Cap & Rotor
Wire set (probably 8.5mm)
Plugs ( not sure which yet)
Modified plug socket
Ignition coil
Wiring harness
MAF (only the $70 one)
Pulley- for a couple hp
Serpentine Belt
Water pump - current one is 4+ years old and something is leaking coolant at the front of the engine so I will know more when I get in there.

Anything else while I'm in there? I Plan on getting most of the parts from WS6store.com and the rest at Auto Zone or something.

Thanks for the input.

Ryan

[Trash man]

plugs either ngk or a/c delco i would recommend

[Craig 94 TA GT]

I would do the whole opti if you mean to just rebuild the cap + rotor...and you have extra $$ to spend.

NGKs are good as Trash man said, and the NGK Iridiums will last a lot longer than standard.

You're not noticing any missing or high RPM stumble right? Simply the drop in mileage and slower track times are the only culprit?

[Ryan96WS6]

What else is there to the optispark other than the cap and rotor. Also where do you buy it. I have searched for it online and only seem to find cap and rotor.

[Injuneer]

The Opti consists of two "halves". The rear half is the body of the Opti, that bolts to the front of the engine. It contains the optical wheel and sensor, the bearing/drive assembly and the harness connector tower. The optical sensor can break down electronically, the sensor can bget coated with rust, blinding it, the bearing can wear out causing wobble with erratic timing and putting the rotor off center, and the harness connector tower seal dries out and leaks.

The front half is the cap and rotor. Electrical contacts burn, dielectric strength of the epoxy separating the thin wires that route the spark to the right side terminals can break down, carbon tracking, etc.

For reliability, replace the entire unit, particularly when it has over 100K miles on it. I would strongly suggest using only the OEN AC/Delco (aka Delphi) replacement. The MSD unit looks promising, but still appears to have some problems. For the correct part number (yours is the 95-97 "vented" model), and a source, look at Shoebox's site:

http://shbox.com/1/Parts.htm

http://shbox.com/1/4th_gen_tech2.html#Dal_and_Jason

Why are you replacing the wiring harness? Just check the connectors, and get new pigtails where reuired. Again, Shoebox has a list of the pigtail part #'s.

If you are not getting a code for your MAF sensor, just clean the one you have.

The U/D pulley is next to worthless.

Consider spacing the IC Module away from the head. See Shoebox's site for a "how to".

Are you also considering replacement of things like the PCV valve, filters, etc?

How many miles on your O2 sensors? The two pre-cat sensors would be candidates for replacement. Use only the OEM AC/Delco parts.

I personally did not like the AC/Delco OEM plugs. They seemed to have a tendancy to lose one or both of the little platinum pucks off the electrodes, producing a huge gap.

[Al 96 Ram Air T/A]

Everything Fred said...

To add:

Your fuel filter should also be replaced. Hopefully, you're not still using the original

[Ryan96WS6]

I appreciate the input. I will definitely replace the entire opti. I will also reconsider the the pulley if it doesn't do anything. Fuel filter was replaced 8 months ago so that is good. By not buying the unnecessary ignition coil or pulley I should have the cash to replace the old O2 sensors also.