On our SD Sp20 engine (which we are in course of rebuilding) I decided to check the OPRV, so took it out, well, took out the screw down bit and the spring. But the actual valve, a small plunger by the look of the diagram in the handbook, has stayed in its hole and doesn't want to come out. I have tried a strong magnet in the end of a rod with no success. Has anybody any ideas please? Maybe a piece of rod bent right round into a U shape at the bottom end to try and push it up from inside the filter housing? Any suggestions would be most welcome! Maybe warm the aluminium casing with a blow torch then try the magnet? The handbook says take it out to clean it, I wish I could! Edited, Sunday 11.3.2018 Got the little blighter! Bosch hot air gun down the filter housing for 1/4 hour, bit of bent rod up it's bottom, strong magnet on a piece of steel bar down the hole. Waggle waggle waggle. Success! Posted by Delagiste 08/03/2018 17:33:26
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