Spark Plug Gap (1 Viewer)

[fjfar80]

I am about to install some new spark plugs in the LC and am trying to determine the best gap. The manual that I have states a .032 gap; however I have searched a bunch of threads and found recommended gaps from .026 to .036. What is the best gap to run on a non-charged, non-turbo FZJ80. I am using some standard NGK V-Power plugs (BKR5EYA). Also, is there any peril running NGK plugs as opposed to OEM plugs and who makes OEM plugs for Toyota? Thanks in advance.

 

[sseaman]

from everything i have ever heard is factory plugs and gap

 

[FJ40Jim]

NipponDenso is the OE supplier of Toyota sparking plugs.

IME, the ND or NGK work fine.

 

[fjfar80]

Thanks guys for the information.

 

[cruiserdan]

The correct gap is .8mm or .0315 inch.

 

[fjfar80]

Cruiserdan - You are a lifesaver, is there anything that you don't know. I'll be calling in an order next week. Thanks in advance.

 

[cruiserdan]

Cruiserdan - is there anything that you don't know?

I don't know..................

 

[cary]

The correct gap is .8mm or .0315 inch.

Well that would explain why my truck never runs right when I gap them to .032".

 

[fjfar80]

Wow...I never thought that replacing spark plugs would be such an intensive process. I guess you can leave it to Toyota to make it difficult. I think I will do a write-up on changing the plugs...what a pain, but for those that have never done it before it can be a pain and maybe it will help some folks out. Am I an idiot or do you have to remove parts of the air intake system to get at the rear plugs?

 

[cruiserdan]

Wow...I never thought that replacing spark plugs would be such an intensive process. I guess you can leave it to Toyota to make it difficult. I think I will do a write-up on changing the plugs...what a pain, but for those that have never done it before it can be a pain and maybe it will help some folks out. Am I an idiot or do you have to remove parts of the air intake system to get at the rear plugs?

#6 is the only true challenge. # 3 and #4 are best delt with if the air intake hose has been removed.

 

[fjfar80]

CDan -
That is what I did, #6 was fun, luckily being small helps, I crawled up on the block and was able to get my left leg down onto the engine mount for balance. I was able to get it out pretty easy when I was in that position; however when my wife came down to she thought that the truck had eaten me.

 

[RavenTai]

FJfar, what makes them difficult is being at the bottom of a tube but they are there because that puts them at the center of the combustion chamber, a very good placement for the spark plug for operation but maybe not for mechanics ease. If it is any consolation it is much easier the second time around,

for number 6 what woks for me is two extensions with a u joint in the middle, the lower extension of the right length to get the u-joint positioned right at the top of the spark plug tube, get the socket and extension in place in the tube then assemble the rest in place, I am sure there are other ways that work well also.

 

[Driley]

Spark plug walkthrough

I know it is pretty basic, but I would be interested in a detailed walkthrough of the spark plug R & R. I have been spending all of my money on the other car (new to me 1991 BMW 735i), getting it back to happy, so I have been holding off on my big order to cdan.

Looking at my air intake hose, I dare not try to remove it until I have a new one in my hand (dry, hard and very brittle). That is one reason I have been waiting to change the plugs and wires.

If any of you out there want to detail the procedure, I would love to save and print it!

Riley

P.S. If anyone needs help with belt change/oil change/front brakes (already covered-check the FAQs), feel free to hit me up for info.

 

[Sno bored]

I just pulled my whole air cleaner assembly and climbed into the engine compartment. This made getting to the #6 plug a breeze. With a lift it's tricky getting to some of the plugs, this made it much eaisier. Just make sure you don't lean on the radiator. Some have busted their radiators by leaning on them, but that's what keep Dan's dogs fed.

 

[SoularVibe]

wow... 13 years since a post here! lol
THIS made #6 super easy....

 

[Grom]

wow... 13 years since a post here! lol
THIS made #6 super easy....
View attachment 1939138

Recruiting 6'7 buddy to come by and reach #6 for me!

 

[BILT4ME]

Recruiting 6'7 buddy to come by and reach #6 for me!

Get one of these. Makes working around the front MUCH safer and easier. Also to cut a board that you can lay your belly on and support yourself that will rest on the fender lips and the engine lifting eye.

https://www.lowes.com/pd/Werner-Aluminum-Adjustable-Height-and-Linking-Pro-Platform-300lb-AP-2030L-MP2/5005470339