jimfoo Posted July 18, 2007 Share Posted July 18, 2007 Less than a year ago I replaced my front RM parabolics because a leaf broke. After crawling under today to replace seals, I noticed one of the NEW ones is broken. Has anyone else had these problems with RM parabolics? Luckily I have one of the old ones left to replace it with. Quote Link to comment Share on other sites More sharing options...
series3_mad Posted July 18, 2007 Share Posted July 18, 2007 I had front one break aswell and still havent got round to changing it, but havent heard of anyone else breaking on i just thought it was down to my driving Quote Link to comment Share on other sites More sharing options...
bill van snorkle Posted July 18, 2007 Share Posted July 18, 2007 I had front one break aswell and still havent got round to changing it, but havent heard of anyone else breaking on i just thought it was down to my driving I think any variable rate spring be it leaf or coil will have a shorter life than a constant rate one because it flexes more often in the shorter softer portion rather than distributing the flex over its whole length. Surface tension probably has an effect too. A thin leaf can be flexed through a greater degree than a thick one before stretching and fatiguing of the surface occurrs. Bill. Quote Link to comment Share on other sites More sharing options...
jimfoo Posted July 19, 2007 Author Share Posted July 19, 2007 I think any variable rate spring be it leaf or coil will have a shorter life than a constant rate one because it flexes more often in the shorter softer portion rather than distributing the flex over its whole length. Surface tension probably has an effect too. A thin leaf can be flexed through a greater degree than a thick one before stretching and fatiguing of the surface occurrs.Bill. Both mine have broken in the thick portion by the spring plate. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted July 19, 2007 Share Posted July 19, 2007 Sounds like axle wrap then Quote Link to comment Share on other sites More sharing options...
bill van snorkle Posted July 19, 2007 Share Posted July 19, 2007 Sounds like axle wrap then Yes axle wrap will do that. And a LandRover front suspension, for reasons that I won't go into yet again is the worse possible design for a spring type with little wrap control. Bill. Quote Link to comment Share on other sites More sharing options...
Tonk Posted July 19, 2007 Share Posted July 19, 2007 i've been running RM's for last 2 yrs with no problems, and i've had most makes fitted to mine, did they change them under warranty? Quote Link to comment Share on other sites More sharing options...
jimfoo Posted July 19, 2007 Author Share Posted July 19, 2007 i've been running RM's for last 2 yrs with no problems, and i've had most makes fitted to mine, did they change them under warranty? I haven't been able to get a hold of them. Their web site isn't there, and calling their phone # I just get an answering machine. Quote Link to comment Share on other sites More sharing options...
jimfoo Posted July 19, 2007 Author Share Posted July 19, 2007 They called back today and are going to send a replacement. Quote Link to comment Share on other sites More sharing options...
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