slate Posted September 21, 2008 Share Posted September 21, 2008 my overdrive sings a bit around 60mph has anyone experienced this. i suspect its a bearing ,is there an addative that will help i dont want it failing on the rbbr Link to comment Share on other sites More sharing options...
Richard B Posted September 21, 2008 Share Posted September 21, 2008 slate wrote:my overdrive sings a bit around 60mph has anyone experienced this. i suspect its a bearing ,is there an addative that will help i dont want it failing on the rbbrDon't put any additives in an overdrive; bad karma! :'( Link to comment Share on other sites More sharing options...
Greeks Posted September 22, 2008 Share Posted September 22, 2008 don't know what oil everyone else uses but I always used SAE 80-90 ... the guy who provided my reconditioned g/b and o/d reckons this is quite wrong and insists that I should only use SAE 75-80 :-/ Link to comment Share on other sites More sharing options...
slate Posted September 23, 2008 Author Share Posted September 23, 2008 Greeks wrote:don't know what oil everyone else uses but I always used SAE 80-90 ... the guy who provided my reconditioned g/b and o/d reckons this is quite wrong and insists that I should only use SAE 75-80 :-/i have allways used straight EP 90, but i dont think oil is the problem :-/ Link to comment Share on other sites More sharing options...
thescrapman Posted September 23, 2008 Share Posted September 23, 2008 I have been told that original recommendation from Laycock de Normanville was a 30 weight oil, that now equates to a straight SAE30 oil.Was just talking to someone earlier who has run his spitfire box on it for 10+ years with no issues.I myself currently use EP80 GL4.Have been looking at Castrol SMX-S fully synthetic GL4 oil for the future.Not taken the plunge yet.Checking my 1960's Castrol Lubricant chart it says "Hypoy Light" which is now badged Castrol EP80.CheersColin Link to comment Share on other sites More sharing options...
Mj17 Posted September 24, 2008 Share Posted September 24, 2008 I get a ringing between 60/70 but have always assumed it was just a harmonic frequency for the handbrake cable - interested to know if I have something else to worry about! Link to comment Share on other sites More sharing options...
Richard B Posted September 24, 2008 Share Posted September 24, 2008 slate wrote:my overdrive sings a bit around 60mph has anyone experienced this.What key is it in Eb or C# ? :-/Sorry I'll get my coat............. Link to comment Share on other sites More sharing options...
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