Andy Moltu Posted June 14, 2024 Report Share Posted June 14, 2024 Or purchase a calibrated gauge. Quote Link to post Share on other sites
Rob Salisbury Posted June 14, 2024 Report Share Posted June 14, 2024 A note of caution for anyone going down the DIY adjustment route, the original plastic adjustment screws are now quite old and have become brittle and will break or round off if not treated carefully, ..... Malcolm over came this by producing some PRV's with brass adjustment screws. Cheers Rob Quote Link to post Share on other sites
Andy Moltu Posted June 21, 2024 Report Share Posted June 21, 2024 The original PRV is replaceable. The well known diaphragm PRVs are available and you can even use adaptors to enable the use some really cheap PRVs intended for the big Nissans. (I ran a £15 one that performed fine for a couple of years but put a diaphragm prv before a trip to Tuscany. Quote Link to post Share on other sites
Andy Moltu Posted June 21, 2024 Report Share Posted June 21, 2024 The original PRV is replaceable. The well known diaphragm PRVs are available and you can even use adaptors to enable the use some really cheap PRVs intended for the big Nissans. (I ran a £15 one that performed fine for a couple of years but put a diaphragm prv before a trip to Tuscany. Quote Link to post Share on other sites
Andy Moltu Posted June 21, 2024 Report Share Posted June 21, 2024 The original PRV is replaceable. The well known diaphragm PRVs are available and you can even use adaptors to enable the use some really cheap PRVs intended for the big Nissans. (I ran a £15 one that performed fine for a couple of years but put a diaphragm prv before a trip to Tuscany. Quote Link to post Share on other sites
had17462 Posted February 13 Report Share Posted February 13 (edited) Just pulled one of mine apart no o ring but the nylon adjuster screw is showing some damage ,which one is best to use Nick Edited February 13 by had17462 Quote Link to post Share on other sites
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