RedRat Posted October 9, 2007 Share Posted October 9, 2007 Hey all, I'm a doing a tuneup on my 91 legacy. After the the air filter, fuel filter, engine oil, rear diff oil, and an injection cleaning additive, the car runs markedly better. Now for the plugs and wires. Does anyone know the proper plug gap for a stock 91 legacy (non turbo). I should be able to find it somewhere online but I have looked for a whole 15 minutes and figured what the hey I'll ask around. 285K and still moving down the road! thanks, redrat Quote Link to comment Share on other sites More sharing options...
82glsw Posted October 9, 2007 Share Posted October 9, 2007 Does anyone know the proper plug gap for a stock 91 legacy (non turbo). I believe the proper gap is .044 Quote Link to comment Share on other sites More sharing options...
porcupine73 Posted October 9, 2007 Share Posted October 9, 2007 Take a peak under the hood at the various labels and plaquards; that might tell you the suggested gap. Many of the NGK plugs for Subaru come pregapped at .044 inch, which is 1.1mm. That is what the -11 suffix on some NGK part #'s means, pregapped to to 1.1mm (.044 inch). Quote Link to comment Share on other sites More sharing options...
RedRat Posted October 9, 2007 Author Share Posted October 9, 2007 Take a peak under the hood at the various labels and plaquards; that might tell you the suggested gap. Many of the NGK plugs for Subaru come pregapped at .044 inch, which is 1.1mm. That is what the -11 suffix on some NGK part #'s means, pregapped to to 1.1mm (.044 inch). Yeah that would be the obvious place to look, wouldn't it? Ok so I got em gapped to 1.0mm to 1.1mm. the Soccor Mom Special doesn't sound much different, but it does feel good to swap the plugs and wires in anticipation of a drive down to the bay area. thanks, redrat Quote Link to comment Share on other sites More sharing options...
Reveeen Posted October 9, 2007 Share Posted October 9, 2007 My Haynes says: 2.0L 1.0-1.1 mm 2.2L .8 mm Go figure? Quote Link to comment Share on other sites More sharing options...
porcupine73 Posted October 9, 2007 Share Posted October 9, 2007 Indeed. My Haynes has my name written on them with a Sharpie. Quote Link to comment Share on other sites More sharing options...
OB99W Posted October 9, 2007 Share Posted October 9, 2007 [...]Many of the NGK plugs for Subaru come pregapped at .044 inch, which is 1.1mm. That is what the -11 suffix on some NGK part #'s means, pregapped to to 1.1mm (.044 inch). Here's how to decipher the rest of the part numbers: http://www.ngk.com/images/NGKsparkplugNum.gif Quote Link to comment Share on other sites More sharing options...
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