Agree with other poster regarding your torque. The "foot" in foot-lbs is a distance measurement from center of handle to center of socket. If you change that relationship and change distances, you have changed the torque. As an alternative, here's my communication with NGK and their answer: Thank you for the detailed answer. Final question: How do I adjust to torque w/out a torque wrench. As you may know, the clearances in the Subaru FA24F engine are very tight. Any torque wrench will not fit, and will require extensions, wobble joint, etc, making torquing to a specific measure inaccurate. Can you provide guidance like hand tight plus 1/2 turn, or something similar? Thank you. Of course! It’s finger tight, then ½ turn.
You shouldn't use a torque wrench with a universal joint. You will under torque the spark plug. Both the angle and the "U" joint itself will decrease the torque that the wrench shows. Either use the torque wrench perpendicular to the spark plug with the proper extension, or tighten by feel, if the torque wrench won't fit.
After taking out the spark plug closest to the driver on my 2017 Outback, there was absolutely no wear or carbon/discoloration at 80,000km. So I decided to put it back in and will check again in 60,000km. Maybe laser iridium are that durable
Laser iridium are pretty durable, especially in naturally aspirated motors that don't have high compression. 80,000km is just under 50k miles, for comparison the plugs in my Baja Turbo (also uses laser iridium plugs) have a 60k replacement interval. For the non-turbo 2.5s...I'd say 80-100k miles will be just fine, especially if they're burning clean at under 50k miles. My wife's Honda specs laser iridium plugs, those are rated for 100k miles, they looked pretty much perfect when I pulled them out to check around 50k miles like you did. That said, if you already went through all the effort, might be prudent to just change them. It's a 10 minute job on my wife's Honda so throwing them back in was a piece of cake...not as much with Subarus.
After disconnecting the battery, did you have to reset/ reprogram power windows or anything else? I have a 2017 outback limited 2.5 i need to do spark plugs on. My subaru tech guy says if the battery is disconnected, you have to do a bunch of relearn procedures. I'm just curious if you had to do anything like that?
On my 2015 Outback whenever I disconnect the battery my front passenger windows stops working from driver side button. The button on the passenger door works fine. There is a procedure to reset it. I think using the passenger side button it's something like roll the window down, keep holding the down button for a few seconds, then roll it up and keep holding the up button for a few seconds.
Interesting question… I drove (2019 Forester) back from Qld to SA, Australia, a 3 day & nights trip, & was advised by an electrical/mechanic to disconnect the battery each night/reconnect in AM - because of a short in rear fog light that could have drained - not once did I notice anything electrical or electronic not working, ie windows, (preset) radio, dash instruments all working, wipers, etc. 🤷🏻♂️ I have heard from different sources since, about having to reset/reprogram whatever, though in my case I must’ve got lucky 🤷🏻♂️
Agree with other poster regarding your torque. The "foot" in foot-lbs is a distance measurement from center of handle to center of socket. If you change that relationship and change distances, you have changed the torque.
As an alternative, here's my communication with NGK and their answer:
Thank you for the detailed answer. Final question: How do I adjust to torque w/out a torque wrench. As you may know, the clearances in the Subaru FA24F engine are very tight. Any torque wrench will not fit, and will require extensions, wobble joint, etc, making torquing to a specific measure inaccurate. Can you provide guidance like hand tight plus 1/2 turn, or something similar? Thank you.
Of course! It’s finger tight, then ½ turn.
Did they reply back or did I miss that part? I’m curious on what their official word is.
I am curious on what ngks official word is on this matter. Would love to see what they said back. Thanks for the info so far.
You shouldn't use a torque wrench with a universal joint. You will under torque the spark plug. Both the angle and the "U" joint itself will decrease the torque that the wrench shows. Either use the torque wrench perpendicular to the spark plug with the proper extension, or tighten by feel, if the torque wrench won't fit.
Never heard this before. Not sure if I agree with your view on torque wrenching but thanks for the input. 😊
I agree that it would possibly lessen the torque value.
After taking out the spark plug closest to the driver on my 2017 Outback, there was absolutely no wear or carbon/discoloration at 80,000km. So I decided to put it back in and will check again in 60,000km.
Maybe laser iridium are that durable
@@permaflopper that seems good. I would probably change them anyway.
Laser iridium are pretty durable, especially in naturally aspirated motors that don't have high compression. 80,000km is just under 50k miles, for comparison the plugs in my Baja Turbo (also uses laser iridium plugs) have a 60k replacement interval. For the non-turbo 2.5s...I'd say 80-100k miles will be just fine, especially if they're burning clean at under 50k miles. My wife's Honda specs laser iridium plugs, those are rated for 100k miles, they looked pretty much perfect when I pulled them out to check around 50k miles like you did.
That said, if you already went through all the effort, might be prudent to just change them. It's a 10 minute job on my wife's Honda so throwing them back in was a piece of cake...not as much with Subarus.
Good video! Have a 2018 Outback 2.5i, contemplating doing the spark plugs myself...your video is very helpful in that decision making.
Hope it helped. Remember you will need that swivel socket to get on driver side.
Been there with you now it is a piece of cake on my Forester EJ25.
lol. Wasn’t to bad on our old 01 ll bean outback.
Thank you great video!
@@davidcarrick9114 your welcome glad it can help people out. Feel free to share the video to others.
What was the time to complete from start to finish?
@@jerryq1000 if I didn’t take time to film. I would say about an hour.
After disconnecting the battery, did you have to reset/ reprogram power windows or anything else? I have a 2017 outback limited 2.5 i need to do spark plugs on. My subaru tech guy says if the battery is disconnected, you have to do a bunch of relearn procedures. I'm just curious if you had to do anything like that?
@@TheDjsmitty I didn’t lose anything. Still had radio stations programmed afterwards.
@@TheDjsmitty we actually put a new battery in when we did it.
On my 2015 Outback whenever I disconnect the battery my front passenger windows stops working from driver side button. The button on the passenger door works fine. There is a procedure to reset it. I think using the passenger side button it's something like roll the window down, keep holding the down button for a few seconds, then roll it up and keep holding the up button for a few seconds.
@@bohdanked that sounds right. I don’t remember the process off hand.
Interesting question… I drove (2019 Forester) back from Qld to SA, Australia, a 3 day & nights trip, & was advised by an electrical/mechanic to disconnect the battery each night/reconnect in AM - because of a short in rear fog light that could have drained - not once did I notice anything electrical or electronic not working, ie windows, (preset) radio, dash instruments all working, wipers, etc. 🤷🏻♂️ I have heard from different sources since, about having to reset/reprogram whatever, though in my case I must’ve got lucky 🤷🏻♂️
It took 90 years to reach Homestead II?
@@RohanSanjith not sure what you mean.
@@OneMooreHomestead Passangers
Yeah your torque's is going to be way off by having a 20" extension on your torque wrench plus a swivel
Thank you for the information.
Torque wrench is not accurate with extensions.
@@lloydames8752 could be but haven’t seen any evidence to support that.