Join Date: Oct 2006
Location: Callao, VA
Thanked 18 Times in 18 Posts
Rep Power: 11
none whatsoever....I even have people tell me they are not needed at all...and they throw them away, or ....worse
this is from years of working on fuel systems (and other car/MC, heavy equipment) that use them and the side affects/cost of not using them.
You can google Belleville (sp) washer to see the theory (and the inventor) behind them and most pictures indicate the bell to the bolt side...that was the acronym that I used way back when I learned FI systems....