Spark plug change

krh2

Administrator
Bought these plugs….















Turns out the SM says you can use 3 variations of theses plugs. Standard, Cold, Hot, depending on your driving conditions. I used the Standard plugs… Oh, the plugs are pre-gapped. Do not even try to measure the gap or you may break the tip and cost you $9.99.



Tools needed.



3/8” ratchet

5/8” or 16mm spark plug socket

10mm socket

6” extension

2” extension

Anti-seize

Dielectric grease

Torque wrench



I changed them out in cylinder order. The hardest where #7 and #8 which are the farthest back. I did not need a swivel as some have said for #8…



The grease and anti-seize







Each plug has its own coil on top of it. Held on with a 10mm bolt. Remove bolt and pull coil/boot off the plug.



Plug #1



















Remove plug. They were not that tight. I suppose Nissan’s 800 lb gorilla had the day off when my truck was built. <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/003.gif' class='bbc_emoticon' alt=':smt004' />







#1 plug







Before installing the new plug put dielectric grease on the top of the plug and anti-seize on the threads.











Thread plug in by hand gently so as not to cross thread it. Get it finger tight then torque to 18 ft lbs…







After torquing the plug I could not get the socket off the plug without the extension pulling out thus leaving the socket down in the well. My solution was to put masking tape on the extension then putting the socket on and proceed to torque them down. The tape made the socket very tight on the extension.
<img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/002.gif' class='bbc_emoticon' alt=':smt018' />











Removing plug #2…











#2 plug







#3 coil







#3 plug







#4 plug







Half way home.







Removing #5







Plug #5







Plug #6







For access to plugs 6 and 8 you will need to unbolt this wire harness bracket and twist it upward. Plugs 6, 7, and 8 required both 6” extension and 2” combined…







#7 plug








Removing #8. The hardest one to get too…











#8 plug







Done…..











Engine idles much smoother. I will check mileage soon. Hope I didn’t forget any details.. <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/004.gif' class='bbc_emoticon' alt=':smt006' />
 

honeykeeper

New Member
Great "how-to" as usual kev.... <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/023.gif' class='bbc_emoticon' alt=':smt004' /> and pics. ...Were they tight at first pull removing them?

The burn wear looks "NORMAL" like mine with over 80K on them but there is definately a change in "feel"... <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/020.gif' class='bbc_emoticon' alt=':smt018' />

They might last 100+K but at 40-50K if they are half way gone I think it's a good practice to replace them and see how the cylinders are doing.

Another project off the list....Congratulations!
 

krh2

Administrator
[quote name='honeykeeper' date='06 September 2009 - 07:03 PM' timestamp='1252288988' post='152593']

Great "how-to" as usual kev.... <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/023.gif' class='bbc_emoticon' alt=':smt018' /> and pics. ...Were they tight at first pull removing them?

[/quote]



Nope, loosened real easy.... Even the boots.. Gentle pull and done. Oh, the seat for the coils have a notch so bolt alignment is a no brainer... Imagine that...... Nissan made sumfin easy.. <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/003.gif' class='bbc_emoticon' alt=':smt004' />





[quote name='swarren1' date='06 September 2009 - 07:42 PM' timestamp='1252291352' post='152596']

Oh you're good.

<img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/044.gif' class='bbc_emoticon' alt=':smt006' />

I bought a feeler to double check that they got the gap correct. Guess I'll be taking it back. Thanks.

[/quote]



Thanks! Guy at Pep Boys warned me twice not to measure them 'cause he would not take any back........



One other thing............ I have prolly a dozen bruises on each arm / torsoe, lots of cuts/scratches on my knuckles etc........... Hell, my whole upper body was sore this morning. I am sure it will be worse tomorrow..



Oh, She purs like nutting else now. What a difference! Ok, now to go re-tune her with my Cortex..
 

swarren1

New Member
One other thing............ I have prolly a dozen bruises on each arm / torsoe, lots of cuts/scratches on my knuckles etc........... Hell, my whole upper body was sore this morning. I am sure it will be worse tomorrow..
hmmm ... you know, the ones I have in there will probably be fine at least until I hit 100K miles, and tomorrow is ... Labor Day. <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/002.gif' class='bbc_emoticon' alt=':smt018' />
 

swarren1

New Member
I only made it as far as lifting the hood to see if I will be able to reach everything, (I can on tip toes, but will use a stool and an old blanket to lean across).



The wires on the coil packs don't really look long enough to pull them out without cutting the wire ties used for wire management. But I noticed, (see pics in post 1), there are gray plugs that go into the black portion of the coil pack. Has anyone just unplugged these?



Seems to have one of those latch mechanisms on them, but idk.
 

honeykeeper

New Member
[quote name='swarren1' date='07 September 2009 - 10:58 PM' timestamp='1252375113' post='152627']

I only made it as far as lifting the hood to see if I will be able to reach everything, (I can on tip toes, but will use a stool and an old blanket to lean across).



The wires on the coil packs don't really look long enough to pull them out without cutting the wire ties used for wire management. But I noticed, (see pics in post 1), there are gray plugs that go into the black portion of the coil pack. Has anyone just unplugged these?



Seems to have one of those latch mechanisms on them, but idk. [/quote]



Just jump in and start with the easy ones.....no need to unplug the wires. Good 60 minute job. Enjoy..... <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/001.gif' class='bbc_emoticon' alt=':smt001' />
 

krh2

Administrator
[quote name='swarren1' date='07 September 2009 - 06:58 PM' timestamp='1252375113' post='152627']

I only made it as far as lifting the hood to see if I will be able to reach everything, (I can on tip toes, but will use a stool and an old blanket to lean across).



The wires on the coil packs don't really look long enough to pull them out without cutting the wire ties used for wire management. But I noticed, (see pics in post 1), there are gray plugs that go into the black portion of the coil pack. Has anyone just unplugged these?



Seems to have one of those latch mechanisms on them, but idk.

[/quote]



Mehhhh, you are like me......... Makin too much of it.. Wires are plently long. In fact, I had to fish #7 (coil/boot) from down around the tranny.. Some folks confuse the injector harnesses for the plug coils.. DONT DO THAT..... lol
 

swarren1

New Member
Thanks guys!



I still need to pick up the dielectric grease tomorrow when I'm in town. [Got the anti-seize, but I forgot to buy the grease yesterday]. Might get some mechanic gloves too so I will have less of a chance of bloodying up the knuckles.



Probably shoot for Saturday morning now since it is still pretty hot after work, (and since those 1 hour jobs always seem to take me at least couple ... things like Kev's spark plug socket stuck on the plug is the type of stuff that always extends the time for me).



I'll save the plugs and get pics of them.
 

ttammunek04

New Member
Good write up. Basically what I done minus unbolting the wiring harness. As stated plugs 7 & 8 are a biotch. I think at first everyone overthinks it. I did. Only thing to do is to jump right in with both hands and a ratchet and GIT R DUN!
 

swarren1

New Member
Changed the plugs today. Started on the passenger side, which was a little more difficult overall, but things were tight at the one next to the master cylinder, booster, or whatever the large round bowl shaped thing is on the driver's side close to the firewall.



Glad I had a universal joint swivel socket adapter, as with my extensions is was required. Even used one with the nut-driver-like handle and 10 mm sockect on one of the coil-packs. Each plug had it's own perfect combination of extensions, so it's good having a 3", 6", and 10".



Some of the plugs were a bear to break loose, other than that, a fairly easy job. Took me over two hours. The driver's side seemed like it went very fast but still was an hour, not including looking for the dielectric grease that fell down to the skid plate. Least by doing it myself, I know they were actually changed. Lol



Plugs looked fairly good, just brown, I'll post a pic later. Truck ran way smooth afterwards too, and seemed to accelerate better too ... like new. <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/007.gif' class='bbc_emoticon' alt=':smt017' />



I was at 92,800 miles, so I think maybe a little sooner would have been better, so I'll probably shoot for 170,000 miles for the next change, which will be about 78K miles.



Thanks for the excellent write-up Kev, and everyone for their great input!
 

krh2

Administrator
[quote name='swarren1' date='13 September 2009 - 03:05 PM' timestamp='1252879502' post='152849']

Changed the plugs today. Started on the passenger side, which was a little more difficult overall, but things were tight at the one next to the master cylinder, booster, or whatever the large round bowl shaped thing is on the driver's side close to the firewall.



Glad I had a universal joint swivel socket adapter, as with my extensions is was required. Even used one with the nut-driver-like handle and 10 mm sockect on one of the coil-packs. Each plug had it's own perfect combination of extensions, so it's good having a 3", 6", and 10".



Some of the plugs were a bear to break loose, other than that, a fairly easy job. Took me over two hours. The driver's side seemed like it went very fast but still was an hour, not including looking for the dielectric grease that fell down to the skid plate. Least by doing it myself, I know they were actually changed. Lol



Plugs looked fairly good, just brown, I'll post a pic later. Truck ran way smooth afterwards too, and seemed to accelerate better too ... like new. <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/007.gif' class='bbc_emoticon' alt=':smt005' />



I was at 92,800 miles, so I think maybe a little sooner would have been better, so I'll probably shoot for 170,000 miles for the next change, which will be about 75K miles.



Thanks for the excellent write-up, and everyone for their great input!

[/quote]



Wow, all those extensions and swivels? Hmmmm... Ya the plug by the master cylider was ok to get to but when it came time to remove my extension would hit that thing. Took some manuevering to get it out. New plugs sure makes a difference dont it? <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/003.gif' class='bbc_emoticon' alt=':smt017' />
 

honeykeeper

New Member
[quote name='swarren1' date='13 September 2009 - 07:05 PM' timestamp='1252879502' post='152849']

Changed the plugs today. Started on the passenger side, which was a little more difficult overall, but things were tight at the one next to the master cylinder, booster, or whatever the large round bowl shaped thing is on the driver's side close to the firewall.



Glad I had a universal joint swivel socket adapter, as with my extensions is was required. Even used one with the nut-driver-like handle and 10 mm sockect on one of the coil-packs. Each plug had it's own perfect combination of extensions, so it's good having a 3", 6", and 10".



Some of the plugs were a bear to break loose, other than that, a fairly easy job. Took me over two hours. The driver's side seemed like it went very fast but still was an hour, not including looking for the dielectric grease that fell down to the skid plate. Least by doing it myself, I know they were actually changed. Lol

http://www.titanspot.com/Titan/public/style_emoticons/default/008.gif

Plugs looked fairly good, just brown, I'll post a pic later. Truck ran way smooth afterwards too, and seemed to accelerate better too ... like new. <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/007.gif' class='bbc_emoticon' alt=':smt005' />



I was at 92,800 miles, so I think maybe a little sooner would have been better, so I'll probably shoot for 170,000 miles for the next change, which will be about 78K miles.



Thanks for the excellent write-up Kev, and everyone for their great input! [/quote]



Glad it worked out for you and your Titan runs smoother. I'm probably going to change mine every 50K..........or at least check them... <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/009.gif' class='bbc_emoticon' alt=':smt005' /> <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/002.gif' class='bbc_emoticon' alt=':smt017' />
 

swarren1

New Member
Looks like f'n Hughes net isn't letting me upload so the pics will have to come later ... Just use your imaginations for now. Lol ... works now​
 

swarren1

New Member
Yes, it is well worth the effort.



Upon further inspection of the plugs, two things I'm not happy about. The first is ... another Nissan design flaw, IMO. The gaskets at the coil packs are not water proof. Note the muddy water stains on three of the plugs in the first two pics. Nissan should know better, at least on their Off road version of the Titan. They have years of experience with the Nissan Patrol after all.



The second is the look of one of the plugs that seems to have oil on the lower threads, while the part near the top seems cleaner than the others. It can be seen in the last three pics. Btw, the pics make them look worse than they do it person, even the worst one look fairly good st the electrodes.
 

Attachments

honeykeeper

New Member
[quote name='swarren1' date='14 September 2009 - 02:53 AM' timestamp='1252907601' post='152862']

Yes, it is well worth the effort.



Upon further inspection of the plugs, two things I'm not happy about. The first is ... another Nissan design flaw, IMO. The gaskets at the coil packs are not water proof. Note the muddy water stains on three of the plugs in the first two pics. Nissan should know better, at least on their Off road version of the Titan. They have years of experience with the Nissan Patrol after all.



The second is the look of one of the plugs that seems to have oil on the lower threads, while the part near the top seems cleaner than the others. It can be seen in the last three pics. Btw, the pics make them look worse than they do it person, even the worst one look fairly good st the electrodes. [/quote]



Pulling/replacing the plugs tells a story.........that story to me is worth the cost of replacement way before 100K. Looking at your sig pic. makes me wonder how much mud is sitting in the valley where the starter is located?... <img src='http://www.titanspot.com/Titan/public/style_emoticons/<#EMO_DIR#>/009.gif' class='bbc_emoticon' alt=':smt009' />

I would "keep" my eye on the plug with oil on it and see if it's still happening.......hope not!



Spark plugs were invented by Nikola Tesla:



http://www.youtube.com/watch?v=akM9KNEv_JE&feature=related
 

ttammunek04

New Member
[quote name='swarren1' date='14 September 2009 - 01:53 AM' timestamp='1252907601' post='152862']

Btw, the pics make them look worse than they do it person, even the worst one look fairly good st the electrodes.

[/quote]



Mine looked very simailar to yours. Slightly oily on the first 4 or 5 threads then dry as a bone.
 

swarren1

New Member
[quote name='ttammunek04' date='14 September 2009 - 06:17 AM' timestamp='1252934259' post='152870']

Mine looked very simailar to yours. Slightly oily on the first 4 or 5 threads then dry as a bone.

[/quote]Do you use 6.5 quarts of oil or 7 quarts? I read too much oil is one cause of fouling a plug, if this is considered fouling.

[quote name='honeykeeper']Looking at your sig pic. makes me wonder how much mud is sitting in the valley where the starter is located?..[/quote]I thought that I had a post with my Titan on the bed of a tow truck a couple of days after that pic. [Can't find it}. Turned out the starter motor's bendix, or something like that, was stuck in the mud. The repair shop put a garden hose on it for 10 minutes, and it has been fine for almost a year now. Cost me $10 or $20 IIRC.
 

honeykeeper

New Member
[quote name='swarren1' date='14 September 2009 - 11:33 AM' timestamp='1252938802' post='152878']

Do you use 6.5 quarts of oil or 7 quarts? I read too much oil is one cause of fouling a plug, if this is considered fouling.

I thought that I had a post with my Titan on the bed of a tow truck a couple of days after that pic. [Can't find it}. Turned out the starter motor's bendix, or something like that, was stuck in the mud. The repair shop put a garden hose on it for 10 minutes, and it has been fine for almost a year now. Cost me $10 or $20 IIRC. [/quote]



6.5 qts, always and no more........if you let other people service your Titan they will want to fill to the upper mark on the dipstick and that isn't good.....did you?
 

krh2

Administrator
[quote name='swarren1' date='14 September 2009 - 07:33 AM' timestamp='1252938802' post='152878']

Do you use 6.5 quarts of oil or 7 quarts? I read too much oil is one cause of fouling a plug, if this is considered fouling.

I thought that I had a post with my Titan on the bed of a tow truck a couple of days after that pic. [Can't find it}. Turned out the starter motor's bendix, or something like that, was stuck in the mud. The repair shop put a garden hose on it for 10 minutes, and it has been fine for almost a year now. Cost me $10 or $20 IIRC.

[/quote]





[quote name='honeykeeper' date='14 September 2009 - 06:34 PM' timestamp='1252978477' post='152901']

6.5 qts, always and no more........if you let other people service your Titan they will want to fill to the upper mark on the dipstick and that isn't good.....did you?

[/quote]



I dump 6 qts then drive a day or 2.. Then check it when cool.. Usually have to add 1/4 to 1/2 qt..... So 6 - 6 1/2 qts for me...
 
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