I need to replace the plugs on my 91, any suggestions?does anyone use the solid copper plug wires?

 

NGK or denso for both plugs and wires.

 

Thanks Robert

 

I 2nd the NGK I've used them in my yotas for years

 

I have a 91 4Runner and the first set of plugs I installed were the PRICEY one's thinking the more you pay the better you'll get.That first set at $10 a plug lasted all of 2000 miles and when I pulled them out each one was toasted.I installed the factory copper plugs and wires and 5000 miles later still running like a champ.By the way those factory copper plugs were about $2.00 a piece.

 

Good thing. Im thinking about replacing my spark plugs

 

I replaced the ac delcos, with the ngks off my 91, then put on some old wires I had around. It runs better, still a little rough, I also put in a different fuel filter I had around. Perhaps I am getting to getto, I will get the proper parts on her and see how that goes. I am interested in these factory copper plugs and wires.

 

Could you describe these factory copper plugs and wires Alaskan?

 

Copper plugs and wires..WTH?

For my 91 22re there are now only two spark plugs I'll consider.
OEM Denso's PT#90919-01064 at the Dealership Service Center or NGK V Power PT#BPR5EY (Stock#1233).


It's pretty simple really.
If you want NGK's get the recommended V-Power Plugs. If you want Denso plugs get them from the Service Department at your local Dealership. They don't cost much more at the dealer and they are a more reliable plug.


More reliable, how can that be?
The Denso plugs you get at local parts stores like CarQuest etc have tips that screw on. Of course you tighten them down good but they can still work themselves loose. That's not really what you want for the best/most reliable spark.

Screw on tip

 

About spark plug wires,
Yes you can get a set that transfer a very small amount of current over the OEM wires but you won't be gaining anything noticeable over a GOOD (not toasted and used up) set of OEM plug wires. You simply won't be gaining much if anything here. Because of this I consider the OEM dealer service center replacement part a better choice because of longevity and fitment.

OEM wires are the perfect length (most aftermarket wires are too long and look sloppy when mounted), and they come with all the correct looms helping to keep the wires in place and routed neatly.

A couple other things the OEM wires have going for them over the aftermarket is that they are also sealed wherever the boot meets the wire helping to keep out moisture. That's something none of the aftermarket wires have.

Also all of the aftermarket wires I've seen have fitment issues in my mind.
For the most reliable fitment and connection Angled spark wire boots get Angled connectors and Straight boots get Straight connectors!
The OEM wires have angled connectors and boots like it should be, aftermarket.. Angled boots and Straight connectors...

OEM wires and looms





If you're heart is set on aftermarket I'd get NGK's, most others are just hyped up junk or overpriced for this application.

 

If you've done plugs and wires you should probably go all the way and get a new cap and rotor too. Most of the long time 22r/re owners recommend getting the OEM/Denso dealer service department parts. I'm afraid I lean that way again.

Don't forget to replace the O-ring that sits under the cap If it's still there after all these years the O-ring will probably be shrunk up and won't allow the cap to seal against it helping to keep out moisture. I consider it an important part considering where the distributor is located. You can pick up this O-ring at NAPA for cheap. I'm not sure if the 87 came with one, my 91 did. An easy way to tell is to look for the groove that the O-ring sits in. It's cast into the distributor body/housing.

The only aftermarket cap and rotor set I'd consider for the standard application 22re is the AutoZone Gold Cap & Rotor Kit PT#15573G. I know I know stay away from AutoZone! Those parts may come in an AutoZone Box but they are actually a Wells product with brass terminals, something you don't see much of anymore.

 

Don't forget to check the gap on the plugs

 

Thanks Odin, just to clarify, I am focusing on my 87, I took the plugs and wires off of my 91 and put them on my 87, so yes it is still running rough, I suppose the best thing is to do the cap and rotor next, I will look for the ones you recommend.

 

One more vote for OEM. Forget the exotic plugs. 4Runners are not designed for performance, anyway.
Sumitomo wires like above are OEM's. I got non-OEMs (NGK's I believe) from Sparkplugs.com, but one's boot already has a crack after a couple of years.
Don't get me wrong; sparkplugs.com carries good brands and prices, otherwise.