Spark Plug Gap?

[mavrik2k3]

Just a quicky ...nun and vicar jokes waiting.

ive just checked the spark plugs on a avensis vvt-i 1.8 2001 plate, it is plain to see that they are well past there sell by date,,60 thou gap, so need to get some new ones in ,any recomendations to were to purchase them? and also what should the gap be ? in at the mo are Denso K16R-U11 are we talking mega buks from Mr T ? or would i be better in going to the motor factors again ?

thanks in advance mavrik2k3

[ulro]

They would be expensive since they are probably double platinum or even worse Iridium electrodes. You must consider these modern spark plugs runs with much wider gap since the electronic ignition generates much higher voltage than the old distributor type ignition. If they are Iridium type the electrodes are also much narrower in diameter, almost as small as a fine pencil tip. In any case I think the Iridium plugs last about 15 000 miles before they need replacing.

[Bilal8210]

hey ive got a 98 1.8 gls and there seems to be a sticker on the engine telling you to only replace the spark plugs with the Iridium ones? is this true for all avensis's? i dont fink im running on them at the moment and just have the normal denso plugs i think....will replacing them to the recomended Iridium make any difference?

thankssss

[ulro]

The 1.8 VVTi (engine code 1ZZ-FE) I think has used the Iridium plug from when it was first introduced. Other Toyota engines with distributorless ignition also probably use Iridium plugs. They are expensive but last for long and with excellent performance.

[purvesh81]

hey ive got a 98 1.8 gls and there seems to be a sticker on the engine telling you to only replace the spark plugs with the iridium ones? is this true for all avensis's? i dont fink im running on them at the moment and just have the normal denso plugs i think....will replacing them to the recomended iridium make any difference?

thankssss

Yes only use Iridium plug on our year cars. I got mine from toyota parts as they were cheaper than anyone else (yes you read correctly) they are Denso Iridium SK20RP13 (toyota part number T90919-01212) @ 9.31+vat each.

[peterr]

They would be expensive since they are probably double platinum or even worse Iridium electrodes. You must consider these modern spark plugs runs with much wider gap since the electronic ignition generates much higher voltage than the old distributor type ignition. If they are Iridium type the electrodes are also much narrower in diameter, almost as small as a fine pencil tip. In any case I think the Iridium plugs last about 15 000 miles before they need replacing.

HI, I GOT AN AVENSIS 2001 VVTI, I JUST CHANGED THE SPARK PLUGS IT SAYS ONLY CHANGE THEM WITH Iridium PLUGS, I BOUGHT Bosch 510 FR78? I DON'T HAVE ANY IDEA IF THEY ARE CORRECT, I BOUGHT THEM FROM Halfords, CAN ANY TELL ME WHAT IS THE DIFFERENCE WITH Iridium? HOW OFTEN DO SPARK PLUGS NEED TO BE CHANGED.. THANKS

[BALIKBAYAN]

The best thing to decide if you bought the correct plugs is to read the owners manual. Usually you can find wich different plugs that is ok in that book. There are different sites at internet that sell plugs and most of them do tell you wich plugs that is ok to use with your car. Some of these sites do have a cross reference too. I tried to use a cross reference on those plugs you mentioned, but it was recognised. It might be different plugs if you have 1.6 , 1.8 or 2.0 lit engine in the car.