Gary B Posted May 22, 2011 Share Posted May 22, 2011 What is the purpose of these 3 springs? Can they be purchased anywhere? Link to comment Share on other sites More sharing options...
dictator27 Posted May 23, 2011 Share Posted May 23, 2011 They are there to allow for flexing in the frame.Terry Link to comment Share on other sites More sharing options...
Gary B Posted May 23, 2011 Author Share Posted May 23, 2011 Can they be replaced? Where can you get them? Link to comment Share on other sites More sharing options...
Gary_Ash Posted May 24, 2011 Share Posted May 24, 2011 If you have an old one, measure the outside diameter of the coils, inside diameter, wire diameter, free length, and number of of coils. Assume they are standard "music wire" steel springs. Go to Precision Spring Manufacturer - Century Spring Corp. and do a search for a compression spring that is close. When you tighten the bolts, the spring should only compress a little, leaving room for further compression under transient load. I haven't seen the tank, but let's assume it holds 20 gallons of gas at 6 lb/gal or 120 lbs plus the weight of the tank, say 30 lbs. That makes a total of 150 lbs or 50 lbs per spring. So, the springs should be holding the tank against the brackets even when the tank is full. If you have a spring rate of 200 lb/inch, the springs will be compressed 1/4" or a little more for the pre-load. The coils shouldn't be touching each other when the car is parked so that the tank can move a little bit when you hit a bump or the chassis twists a little. Link to comment Share on other sites More sharing options...
Gary B Posted May 31, 2011 Author Share Posted May 31, 2011 They were not able to help me, but thanks. Link to comment Share on other sites More sharing options...
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