spark plugs

[canuck1000]

i can't seem to get the caps off, i took bolt out, tried pulling them but can't get them off. maybe i'm not pulling hard enough. is there something i'm forgettin. i just don't want to break anything.

 

[ApexRtxGuy]

they come off very hard i dont know if this is right or wrong but i took the bolt out and then turned the cap a quarter turn and pulled hard and they came of easier

 

[Blue Dave]

I also had to twist my caps slightly while pulling and they came off with some effort.

 

[canuck1000]

thanks, i'll try twisting and pulling.just wanted to make sure i wasn't going to break anything.

 

[kotapug]

I also had to twist mine a good 1/4 turn then they came off . Thank god we dont have to change a plug on the trail.LOL

 

[BigMac]

But how do you get to the plug on the mag side? My gosh that's a tight squeeze...even with the coolant overflow reservoir removed.

And by the way...I just picked up some CR10EK's. They come with just threads on the ends. Do these engines need the plugs to have caps screwed onto the ends?

 

[Thewhitedogg]

the #4 plug is hard to get to. With the coolant over flow removed, it can be done.

Yes you do need the caps for the threaded ends of your new cr10ek's

 

[SledFreak]

Yep, you need to get the ends.

 

[kotapug]

You need to buy the screw on caps . I had to buy the cheap NGK and took the caps off. I used a long extension and removed the reservoir to get that plug . It sucks putting the resv. back on

 

[BigMac]

It sucks putting the resv. back on

It really sucks if you drop the washer for the reservoir mounting bolt "down in there". Fortunately, it's steel and magnet-retrievable...

 

[kotapug]

I have done the same thing. I used a little gasket sealer to hold it in place.

 

[BubbaGoFast]

I see everyone talking about cr10ek plugs why do they work so well. I went to change mine with original cr9e and all they had was cr9ek so I bought those since the only difference is dual electrode and those had the caps on them. Should I not run those are they going to be too hot since 9's are hotter than 10's but stock is a 9 I wouldn't think that dual electrode would make it a problem please let me know if I'm looking for trouble with this scenario?

 

[kotapug]

You will have no prob. with the plug you are running. The reason people are changing is that you gain a little horsepower for little money. This topic has been talked about alot just find it on this forum . I dont know how to post it here for you but I'll try to figure it out

 

[170plus]

i seen a dyno sheet today that showed a 2.2 hp gain at 10500rpm with the 10's installed and no other mods,not too bad, installing them is worse than spending the 40 bucks

 

[Blue Dave]

I know that this subject is getting old for many of you. However I do not think that Bubba's question was understood properly.

I think that Bubba was asking about changing his stock CR9EB's with the dual electrode CR9EK's.

I put in the CR10EK's because that is what Ulmer recomended. However I have always been curious why we go one step "colder" in the dual electrode plug. Why wouldn't the dual electrode CR9EK be a better choice?