MSD 6a igntion box.

[AtomicHoe094]

MSD distributors are pretty crappy. The internals of them (inside the cap) rust to hell throwing off a lot of stuff. Pull off your cap and check it out. The magnetic pickup is usually the worst.

Plugs gapped at that shouldn't do anything to make it rough..

 

[SunlitComet]

The stock gap for a '96 vehicle in U.S. is 0.060 so if anything your gap is not big enough. Even if you added the ignition box the gap is still to small.

The '95's are .035 so if you add the ignition box then .050 is good.

 

[stuntmanray385]

The stock gap for a '96 vehicle in U.S. is 0.060 so if anything your gap is not big enough. Even if you added the ignition box the gap is still to small.

The '95's are .035 so if you add the ignition box then .050 is good.

its a 96 with the ac delco platinum plugs. i was thinking of upgrading to e3s. how do those work? any better?

 

[AtomicHoe094]

The stock gap for a '96 vehicle in U.S. is 0.060 so if anything your gap is not big enough. Even if you added the ignition box the gap is still to small.

The '95's are .035 so if you add the ignition box then .050 is good.

True... so before you go change your plugs and waste money on the E3s. try gapping them first. Never know what will happen.

 

[SunlitComet]

I personally would not try gapping "pre-gapped don't not alter" platinum's unless recommended by plug maker. If you use devices such as an ignition box on such an engine contact the maker and ask them for the opinion on using there ignition box on your type of engine and what type of plugs to use as well. They are the best source for it.

---------- Post added at 04:15 PM ---------- Previous post was at 04:10 PM ----------

Ray, since it appears you do not have the proper gap on your plugs I would fix that problem before looking at other issues or mods right now. Incomplete combustion can occurs and fouling can occur if it has not already. and if left alone gap bridging will be next which will stop firing all together.

 

[stuntmanray385]

I personally would not try gapping "pre-gapped don't not alter" platinum's unless recommended by plug maker. If you use devices such as an ignition box on such an engine contact the maker and ask them for the opinion on using there ignition box on your type of engine and what type of plugs to use as well. They are the best source for it.

---------- Post added at 04:15 PM ---------- Previous post was at 04:10 PM ----------

Ray, since it appears you do not have the proper gap on your plugs I would fix that problem before looking at other issues or mods right now. Incomplete combustion can occurs and fouling can occur if it has not already. and if left alone gap bridging will be next which will stop firing all together.

THANKS! i gapped them to .50 last night and still idles rough. its a new motor so i might have to get the timing adjusted. but heres a pic of my set up.

http://imageshack.us/photo/my-images/146/msdsetup.jpg/

 

[AtomicHoe094]

MSD distributors are pretty crappy. The internals of them (inside the cap) rust to hell throwing off a lot of stuff. Pull off your cap and check it out. The magnetic pickup is usually the worst.

Plugs gapped at that shouldn't do anything to make it rough..

............................ ever check it yet?

 

[SunlitComet]

THANKS! i gapped them to .50 last night and still idles rough. its a new motor so i might have to get the timing adjusted. but heres a pic of my set up.

http://imageshack.us/photo/my-images/146/msdsetup.jpg/

The vortecs do not have user programmable timing by adjusting the distributor if that is what you were thinking.

BTW .050 is still the wrong gap for vortecs.

 

[AtomicHoe094]

at the .50 part from sunlit

 

[SunlitComet]

Alright you lost me Atomic. What .50 from me.