Bright spark needed!

[gaz 7404]

Hi all,
Im just purchasing some new plugs from ford for the 3R and quoted the part no from the wiki Spark Plugs - Motorcraft AGSF32WM - 40thou gap. Ford came back with AGSF32FM are these ok? Not sure if the wiki is wrong,part no changed for some reason or just the guy at ford giving me wrong info? also do the 2.5 and 3.0L use the same plug? Any guidance would be great as i seem to have hit a dead end. cheers - Gar.

[mgbond]

gaz 7404 said:

Hi all,
Im just purchasing some new plugs from ford for the 3R and quoted the part no from the wiki Spark Plugs - Motorcraft AGSF32WM - 40thou gap. Ford came back with AGSF32FM are these ok? Not sure if the wiki is wrong,part no changed for some reason or just the guy at ford giving me wrong info? also do the 2.5 and 3.0L use the same plug? Any guidance would be great as i seem to have hit a dead end. cheers - Gar.

I have found no difference with FM and WM, it maybe some king of date code/batch code its the AGSF32 thats important. I did think the 2.5 were diff from the 3 but they are the plugs they gave me for the 2.5!

Bondy

[joust]

There is a big difference in the composition

http://info.rockauto.com/Motorcraft/sparkPlugs.htm

One is just Platinum-Nickel (FM), one is Platinum-Iridium (WM)

Iridium is ~twice the F melting point of Nickel (4500F vs. 2600F from memory) so if you can get WM's then it will be 'safer'.

If you believe the marketing hype, Iridium also gives "faster throttle response". Hmm....

J

[gaz 7404]

WOW! thanks for the response guys, just what i needed.

[Biggriff]

Blimey Joust. Excellent explanation

[gaz 7404]

This is starting to puzzle me now, I rang the ford dealer to order agsf32wm and got no help due to me not being able to supply the reg number of the ford i dont own, so.... I called christopher neil's and asked what plug they would supply me with and they said agsf32fm!!!! Whats the crack here? the wiki says agsf32wm and now i am in a right cafuffel! I dont want to risk it due to jousts points. Gar

[node]

gaz 7404 said:

This is starting to puzzle me now, I rang the ford dealer to order agsf32wm and got no help due to me not being able to supply the reg number of the ford i dont own, so.... I called christopher neil's and asked what plug they would supply me with and they said agsf32fm!!!! Whats the crack here? the wiki says agsf32wm and now i am in a right cafuffel! I dont want to risk it due to jousts points. Gar

Not sure if this is much help to you but i found this for you -

http://www.partsquick.com/ProductDetail.asp?i=3860...

They're out of stock now but maybe you could throw them an email and ask them to send some over to you when they get some in.

[joust]

gaz 7404 said:

This is starting to puzzle me now, I rang the ford dealer to order agsf32wm and got no help due to me not being able to supply the reg number of the ford i dont own, so.... I called christopher neil's and asked what plug they would supply me with and they said agsf32fm!!!! Whats the crack here? the wiki says agsf32wm and now i am in a right cafuffel! I dont want to risk it due to jousts points. Gar

My post wasn't meant to scare you.

P-N has been used for years in turbo cars. P-I is IMHO a bit of a 'marketing' scam, but with a bit of factual science in place.

Ultimatly P-I will just last longer than P-N as the amount of I is very small. Assuming you kept to the 6K change intervals I can't really see an issue with P-N if that is all you can get.

J

[gaz 7404]

Thanks for your help guys im all sorted now.

[nutsandbolts]

Hi

Car is going in for a service tomorrow and I wanted to know the plug gap. Crazy horses racing said in an email the plugs are pre gapped to 35 but i've seen 37-40 recommended on this forum.

Any ideas?

Thanks

Rick

[gaz 7404]

Hi Rick, They come pre gapped far bigger than 35 thou but I set mine at 40 thou and it runs a treat! It quotes 40 thou in the wiki too. Gar