AndrewMAshton Posted May 16, 2022 Report Share Posted May 16, 2022 Hello, finally tracked down an annoying oil leak on my rebuilt engine, I have the Purolator full flow filter head, the oil leak is between the housing and the threaded spring holder, not numbered in the Moss catalogue, there is a copper washer between the housing and the spring holder which sits in a recess, the copper washer is 50thou thick and I annealed it before fitting. When I took it apart to inspect there where aluminium shavings where the nut on top of the spring holder was bottoming out on the filter housing, it looks as if the copper washer is too thin, it is the original, am I missing something obvious?, gasket cement?, thicker washer/ or two washers?, thanks in advance, cheers, Andrew Quote Link to post Share on other sites
BlueTR3A-5EKT Posted May 17, 2022 Report Share Posted May 17, 2022 Do you mean the washer just to the left of item 11? If so I believe that is a square section rubber washer that sits in a recess in the aluminium filter head and is compressed by the washer 11. No doubt Roger will be along in a mo with a source for square section seals, as he fitted them to his gearbox selector shafts. I have fitted an 'O' ring in that position. Once in place it does not have to come out again (unless you are adjusting with the Oil Pressure and it undoes the whole thing). Peter W Quote Link to post Share on other sites
RogerH Posted May 17, 2022 Report Share Posted May 17, 2022 (edited) Sorry, can't help. My square section seals are lip seals. So not much good.. Have a look here https://uk.rs-online.com/web/c/bearings-seals/gaskets-seals-packings/seals/ Roger Edited May 17, 2022 by RogerH Quote Link to post Share on other sites
AndrewMAshton Posted May 18, 2022 Author Report Share Posted May 18, 2022 Hello Peter/Roger, thanks for the response, I think you have identified the problem, I have no rubber seal fitted so that explains the spring holder bottoming out on the filter housing, I am sure I can find something suitable and in any case will report back on successful outcome, or not!, cheers, Andrew Quote Link to post Share on other sites
AndrewMAshton Posted May 23, 2022 Author Report Share Posted May 23, 2022 Hello, all sorted, in the end I found a thicker copper washer in a draw, opened out its internal diameter, annealed it, some wellseal and all sorted, the washer was 10thou thicker than the original. I did order some from RS but they were lip seals and too thick, so if anyone needs any lip seals, 18mm id, 25mm od and 4mm thick, cheers, Andrew Quote Link to post Share on other sites
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