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-   -   Iac Control (https://www.offshoreonly.com/forums/do-yourself-boating-budget/255282-iac-control.html)

Ted G 06-08-2011 09:05 PM

1 Attachment(s)
If you removed the 4 bolts marked "36" in the pic, the throttle body will come off.

n20michael 06-08-2011 09:38 PM

My set up uses "studs" that protrude through the "throttle body", the air cleaner slides over them and 4 nuts hold it in place, I cant see any way to remove the studs? Do the come out? I seem to remember trying before and not being able to move them

n20michael 06-08-2011 09:40 PM

I believe that drawing is of a MPI set up, mine is the older "EFI"

Ted G 06-08-2011 09:45 PM

Yeah, those studs are threaded on both ends. Use 2 nuts to lock against each other on the outer threads and back the stud out. (Or you can use vice grips but it may score it up some)

n20michael 06-08-2011 09:55 PM

Ok, will give it a shot, Thanks!

Any thought on plugs?

Ted G 06-08-2011 10:01 PM

No, I always used MR43s in mine.

Need4SpeedGTCS 06-08-2011 10:20 PM

Ps: I am changing plugs too (gluton for punishment!) i was told the factory recommended ACMR43T are interchangeable with the NGK "R" YR5's, when I got looking at them, the NGK's appear to have a slightly shorter tip (looking from where the plug seats in the head to the electrode) is this important? The difference is maybe 1/16 th of an inch

Why not stick with the original plugs? If the plugs cross reference they should be the same heat range but what you describe surprises me. Definitely how much of the plug sits in the head will affect it but is that how NGK designed it? Again check cross reference.

Most info I see on the net is NGK BR6FS and AC MR43T are a match

n20michael 06-08-2011 11:20 PM

I only have my iPhone with me, So, if SOMEONE with access to a PC could check for me, I would greatly appreciate it

Thanks!
Michael

Griff 06-08-2011 11:44 PM


Originally Posted by Need4SpeedGTCS (Post 3424910)
Most info I see on the net is NGK BR6FS and AC MR43T are a match

Use one of those. They are the correct plugs.

n20michael 06-08-2011 11:49 PM

Ok, thanks, guess I will go out tommorow and rip out the YR5's I put in earlier! LOL!!

Better safe than sorry I guess!

Thanks guys!
Michael


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