如果需要什么样的密封胶
I would not recommend using any sealer other than Ultra Grey by Permatex (http://www.amazon.com/Permatex-82194-High-Torque-Silicone-Gasket/dp/B000HBGI8K/ref=as_sl_pc_qf_sp_asin_til?tag=yourme-20&linkCode=w00&linkId=763b0270181ebca0da9672ff5c47ea51&creativeASIN=B000HBGI8K). When you remove the housing if you have a paper type gasket use the sealer, but if the gasket is a rubber o-ring then do not...