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GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat (https://www.gmforum.com/)
-   1987-1991 (https://www.gmforum.com/1987-1991-93/)
-   -   Spark plug gap (https://www.gmforum.com/1987-1991-93/spark-plug-gap-236711/)

Mike G 06-02-2006 11:47 PM

Spark plug gap
 
Anyone know the spark plug gap size for a 1991 SSE?
I seem to be missing this page in my manual

bastard 06-02-2006 11:56 PM

.060"
sixty thousandths inch
Should be on the sticker under the hood.

Mike G 06-03-2006 12:01 AM

Thanks Bastard
My label is not clear where gap is written. Its seperated somewhat.

wjcollier07 06-03-2006 12:03 AM

so mike, u cleaned ur engine so well that all the labels are messed up? :lol:

Mike G 06-03-2006 12:08 AM

I wish WJ!!
Its getting a shampoo after the AC conversion. The label seems to have seperated itself from the backing in some areas, even as I pushed it back down, I still was not sure if it was a 6 or a 5 ;)

repinS 06-03-2006 12:59 AM

I lost my label in a tragic tranny line explosion.

I run 0.045" :o
(Magnavox coils)

DarkShadow 06-03-2006 01:04 AM

Quote:

Originally Posted by repinS
I lost my label in a tragic tranny line explosion.

I run 0.045" :o
(Magnavox coils)

thought id just peep in here, even with magnavox coils .45 was too small for my car it really lost some power doin that.

repinS 06-03-2006 01:46 AM

Where's padgett when you need him. He had some insight into this.

http://www.bonnevilleclub.com/forum/...ic.php?t=35262

Don says 0.060", padgett 0.045" with Magnavox. My dad and I were standing over the hood during a plug check, we were trying to figure out which to use - but because things were good as they were, we kept things at 0.045".

Discuss?

bastard 06-03-2006 02:08 AM

I think you should try .060"
 
This Chilton's (POS) manual covers 1986-1999 models. It says .060" for all engines except VIN 3 and L, which are .045"

banned3800 06-03-2006 01:47 PM

Run .060 Gaps with the Magnavox or Delco Ignition on the Vin C engines...

The old Rapidfire 3 plugs came from the factory with a .045 gap and that gap was not be changed... With the later Rapidfires that did not have the splined electrode, they were gap as reccomended by the manufacture...

So weather you run the Platinum Rapidfire 3 or 14, NGKTR55, AC Delco R44LTS6, R45LTS6, Champions or Autolites... Make sure you gap at .060

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