Hey 292 6.2 owners...

[4mulafastech]

Playing in the garage and decided to pull a spark plug just to check it out. I have 2006 6.2 MPI's. Funny thing is my 6.2 owners manual states that the plug should be a AC Delco 41-983 and what I found factory installed in the engine is a 41-932. I am going to follow-up with Mercury next week, but searching the internet I found the 41-932 is a hotter plug than the 41-983, and that the 41-932 is no longer available and has been replaced with a 41-993. Spark plug alphabet soup! I am wondering if my manual is just wrong. Either way, both plugs will 'fit' the 6.2, just don't know what heat range is ideal. What plugs are in your 6.2's??

 

[4mulafastech]

BTW, the Fountain group is ahead of us in post count. We can't let that happen, can we?:26::biggrinjester::sifone:

 

[FRMULTR]

BTW, the Fountain group is ahead of us in post count. We can't let that happen, can we?:26::biggrinjester::sifone:

No, the Beakers must stay behind, where they feel most comfortable. :sifone:

 

[FRMULTR]

I'll check with my mechanic, he just pulled the plugs on my engines, Saturday.

 

[4mulafastech]

I'll check with my mechanic, he just pulled the plugs on my engines, Saturday.

Thanks.

 

[4mulafastech]

Have you pulled the trigger on those new tabs?:sifone:

 

[FRMULTR]

Not yet,but taking a hard look at it. I hadn't figured in the price of patching the old holes, and cutiing into the inner liner kind of bugs me out too! No answer on the plug type yet.

 

[FRMULTR]

OK, the verdict is in. The spark plugs that are in my motors are AC 41-993, and reportedly are perfect in color. This number cross references to an APP 605 Autolite, and a PTR5D10, NGK. Hope this helps.

 

[4mulafastech]

OK, the verdict is in. The spark plugs that are in my motors are AC 41-993, and reportedly are perfect in color. This number cross references to an APP 605 Autolite, and a PTR5D10, NGK. Hope this helps.

This is what I suspected is the correct plug. I have 41-932's and those have been discontinued and replaced by the 41-993. My owners manual has a typo. What year are your engines? How many hours? Thanks again!

 

[FRMULTR]

Motors are 07's, I'm not sure on the hours, probably not more than 50, if I'm lucky. Had a bad year trying to get my new lift set, and made it alot easier to jump on the pontoon, versus doing the whole ramp thing with the Formula.