Darren Sharp Posted October 9, 2012 Share Posted October 9, 2012 Hi Guys I know this has been debated before but I would just like to add my two peneth worth .During the RBRR I kept a religious eye on my oil level and used over ten pints! Strangely I only used Oil on the Motorway sections and none at all on the less strenuous bits. So none at all in Scotland or Wales despite the large hills and racy bits. It is clear that when the engine is working continuously hard, the spray from my rocker oil feed was being sucked straight from the Rocker box vent into the carbs and out the exhaust. ( This was also evident in the vacuum vent tubes and blue smoke that only exits during the over run on the MotorwayI have today removed the damn thing and will report back after the next testing run. I should point out that this engine has just been rebuilt and has no valve or piston ring issues as far as I am aware. It did not overheat at all and never missed a beat.Food for thought Quote Link to comment Share on other sites More sharing options...
nang Posted October 10, 2012 Share Posted October 10, 2012 I wonder about this. Some years ago I decided that I could make an oil feed to the rockers far cheaper than the suppliers were asking. I used copper tube and made my own fittings. The only thing I did differently was to put a restrictor in the fitting which I tee'd off from the oil pressure switch tapping. From memory about 3/32". never have had oil consumption problems and yes, oil is still getting to the valve gear !Tony. Quote Link to comment Share on other sites More sharing options...
DJB_Harvey Posted October 10, 2012 Share Posted October 10, 2012 Get rid of them ! They serve no purpose if the engines in good condition . Quote Link to comment Share on other sites More sharing options...
dazzer Posted October 10, 2012 Share Posted October 10, 2012 I've never come across a problem in this area with the standard set up and thats in competition. I'd be more worried it was taking oil pressure away from the bottom end. Quote Link to comment Share on other sites More sharing options...
Darren Sharp Posted October 10, 2012 Author Share Posted October 10, 2012 Iv'e got a 120 mile Motorway Blat tomorrow so I will soon have a verdict ! Quote Link to comment Share on other sites More sharing options...
Nick Moore Posted October 11, 2012 Share Posted October 11, 2012 I'm going to fit Harland Sharp roller rockers to my 2.5. Some people say that they need more oil, so is it worth fitting one of these oil feeds with a restrictor? Quote Link to comment Share on other sites More sharing options...
andy thompson Posted October 11, 2012 Share Posted October 11, 2012 My Harland Sharp didn't need any extra. Installed them in 2006 with a NOS shaft and they did 100k kms with no discernible wear.Run the engine with the rocker cover removed and ensure all 12 have a steady drip. That is ample. Quote Link to comment Share on other sites More sharing options...
Darren Sharp Posted October 21, 2012 Author Share Posted October 21, 2012 Oooops my Oil consumption update will have to wait until I have replaced the Auto box with six on the floor. Auto finally died thoroughly cooked by the RBRR. Quote Link to comment Share on other sites More sharing options...
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