Spark plugs
- Thread starter cubdrvr
- Start date
AkPA/18
MEMBER
Big Lake Ak
Dave---go for it--you will not regret it. I had two full sets I would alternate and had them for over 5000hrs as far as I know they are still running. They will still fire carrying a heck of a load of lead. I used to oval out about 250 hrs with the other ones and always had to rotate because fo the lead problem(top to bottom) If you put any hours on in a year they are most definitely the way to go. Did I mention how much I liked those plugs 
Mark
Mark
Steve Pierce
BENEFACTOR
Graham, TX
They last twice as long or longer and don't foul.
jr.hammack
Registered User
north of willow ak.
spark plugs
dave,
ran them in a turbo 182 rg that was bad about leading up,was a lot better with ird. plugs,after you get by the cost anway.
really enjoyed the visit,see ya next time.
jr. & j.d.
dave,
ran them in a turbo 182 rg that was bad about leading up,was a lot better with ird. plugs,after you get by the cost anway.
really enjoyed the visit,see ya next time.
jr. & j.d.
Ruidoso Ron
Registered User
Alto, NM
I had a lot of trouble with my Cessna 180, lead-fowling when flying for several hours at high altitude. I was only pulling 19-20" Hg, and it just wasn't enough to scavange the lead. Switched to Iridium, and never had any more problem (at least with the spark plugs).
CaptFox
Registered User
Justin, TX
I had great luck with them in a 185 and when they finally wore out (800-1000 hrs) I put some standard plugs that I had in stock back in and am not happy with them the Iridium's run smoother and do not seem to foul up, Once they wear our Iridum ones are definatly going back in the 185 and the Super Cub also.
They are expensive but will easily pay for themselves over their life in my opinion.
David.
They are expensive but will easily pay for themselves over their life in my opinion.
David.
CaptFox
Registered User
Justin, TX
Mark,
The center fine wire electrode finally wore down to a tiny sliver, I'd been figuring they be shot for about the last 200 hours but they just kept on firing so I left them in, The gap got so large on 1 or 2 that they stopped firing so I pulled the whole set as they had seen better days.
I hope that helps...
David.
The center fine wire electrode finally wore down to a tiny sliver, I'd been figuring they be shot for about the last 200 hours but they just kept on firing so I left them in, The gap got so large on 1 or 2 that they stopped firing so I pulled the whole set as they had seen better days.
I hope that helps...
David.
Pilatus_Porter
Registered User
Lagrangeville, NY
Most models of Iridium plugs are on www.SkyGeek.com. Might even have the new Unison a/k/a Autolite "Fine Wire" plugs that are cheaper in price. No clue if they last as long as Champion
Fortysix12
Registered User
RanchAero Grand Vista, Brooksville
I know there are none for a 320 B1A. Are those diffent cylinders than a A2A or B?
AkPA/18
MEMBER
Big Lake Ak
Thanks Capt
I could never find any wear at all on mine and the gap was fine and they tested good. I talked to a guy that used to work on the Connies. He said they had 55 gal drums of used sparkplugs of the precious metal kind. He said they were fine but they just got changed. Can you imagine that! Like finding a coffee can full of nuggets! I inquired some more and he said the failures he had seen were in the center electrode. It was my understanding they would fail in the housing. Appreciate the feedback.
Mark
Edit---seems to me it was a 38S--does that seem right
Edit-Edit---Looked and I am almost positve I was running a REM 38S and that would be the same for the 360---consult your local engine guy!
http://www.prime-mover.org/Aviation/Manuf_Page/si1042t-2.html
I could never find any wear at all on mine and the gap was fine and they tested good. I talked to a guy that used to work on the Connies. He said they had 55 gal drums of used sparkplugs of the precious metal kind. He said they were fine but they just got changed. Can you imagine that! Like finding a coffee can full of nuggets! I inquired some more and he said the failures he had seen were in the center electrode. It was my understanding they would fail in the housing. Appreciate the feedback.
Mark
Edit---seems to me it was a 38S--does that seem right
Edit-Edit---Looked and I am almost positve I was running a REM 38S and that would be the same for the 360---consult your local engine guy!
http://www.prime-mover.org/Aviation/Manuf_Page/si1042t-2.html
sj
Staff member
Northwest Arkansas
You can sometimes find them used. I paid $48 each new for mine about a year ago which I hear is a great price. I used to have some fouling problems but not any more (yes, I lean agressively to an EGT/FF, but still got some fouling).
I think the Iridiums are the cat's meow. I understand that Unison is getting into the fine wire game and will be somewhat cheaper - at least that is what I heard.
sj
I think the Iridiums are the cat's meow. I understand that Unison is getting into the fine wire game and will be somewhat cheaper - at least that is what I heard.
sj
irishfield
Registered User
Penetanguishene, Ontario Canada
FORTYSIX12 said:
Why not?? Should be the same REM38S and if by chance yours has 3/4-20 harness threads RHM38S
Same plug for all the O and IO-360's as well.
If you happen to need long reach plugs then REB36S
Fortysix12
Registered User
RanchAero Grand Vista, Brooksville
I will ask my engine man. I don't know what the issue was.
Willie
MEMBER
Kerrville, Texas
Plugs
I use them in my 160 hp. They do foul a little but have always fired evenly. I clean them every 25 - 30 hours with Hoppes #9, and do some digging with a tiny pick or safety wire. I never use a blaster on them, but then I don't have near as much to do as some of you guys. The plugs have been in there for 6 years.
I use them in my 160 hp. They do foul a little but have always fired evenly. I clean them every 25 - 30 hours with Hoppes #9, and do some digging with a tiny pick or safety wire. I never use a blaster on them, but then I don't have near as much to do as some of you guys. The plugs have been in there for 6 years.
supercubc37
Registered User
Janesville,WI
Mark it's not the 185 that runs on grain alcohol it's Wilbur himself.
Matt
Matt
tptailwheel
Registered User
vermillion sd
Is that what makes him run like a "gut shot panther"? :lol: I think so.
TOM
PS. people say you can have a good time without drinking, but why take a chance?
TOM
PS. people say you can have a good time without drinking, but why take a chance?
