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B20 rear Main oil leak fix 444-544

It sounds like what happened to my B20. After sitting unused for some time I put the 144S back on the road and drove up to the Lime Rock Park race track where I planned to run on track for the day. Getting to the paddock I positioned the car to back into a space. Once parked I could see an oil puddle where the car had been and a steady drip where it now sat. I opted not to run that day and took photos instead. The 145 mile trip home was nerve wracking as I stopped every 15 miles or so to check on things. Much to my relief there was no more loss of oil. I even drove the 650 miles to my son's shop in NC with no drip. Upon removal I found the felt seal shriveled and split. When the split rotated facing down I'm sure that's when the drip would occur. At that point I switched to a later seal housing with neoprene seal. If you also still have the felt seal you can use a more easily found seal housing from a B21, 23, 230. Just remember the two bolts from the oil pan up into the seal housing will need metric threads (8mm) -- Dave






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