Gwyn Posted April 3, 2009 Share Posted April 3, 2009 Hello there Does anyone know the spark plugs gap for a ST170 ?? I had a look at the Ford Technical disc (TIS) but cannot find it anywhere. I found the torque for the spark plugs and it's 15NM. hope to hear from somebody soon. Quote Link to comment Share on other sites More sharing options...
w2575 Posted April 3, 2009 Share Posted April 3, 2009 Why do you need the gap ? Not being funny but when plugs are bought they are set to specific gaps to give the required air gap for the fuel/air mix to ignite most efficently , further more if you adjust them coatings like silver or irridium coatings can be damaged on the contact surfaces thus increacing resistance across the 2 point which would give delayed combustion Quote Link to comment Share on other sites More sharing options...
Gwyn Posted April 4, 2009 Author Share Posted April 4, 2009 Why do you need the gap ? Not being funny but when plugs are bought they are set to specific gaps to give the required air gap for the fuel/air mix to ignite most efficently , further more if you adjust them coatings like silver or irridium coatings can be damaged on the contact surfaces thus increacing resistance across the 2 point which would give delayed combustion Thanks for that bit of info regards G Jones Quote Link to comment Share on other sites More sharing options...
mike_10 Posted April 6, 2009 Share Posted April 6, 2009 Thanks for that bit of inforegards G Jones if you are looking for the recommended gap it is 1.3mm hope this helps Quote Link to comment Share on other sites More sharing options...
Gwyn Posted April 6, 2009 Author Share Posted April 6, 2009 if you are looking for the recommended gap it is 1.3mmhope this helps Thanks a lot for the information Quote Link to comment Share on other sites More sharing options...
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