I have a 96 Volvo 5.0. I noticed a drip from the sea pump shaft seal. It does not appear that this seal is available from Volvo. It looked a little gunky. I flushed it and will probably reinstall it and try to run it. Has anyone replaced one of these. Do they expect you to just replace the Jabsco pump for this seal? Does anyone know the Jabsco number for this pump? Thanks.