[T2] @&^%$$ oil leak still there -update
MUTS muts at verizon.netSun Nov 6 06:47:19 PST 2016
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Researched the seal seating issue, mostly on the Samba, Bob Hoover blog (he died in 2010) $ some YouTube. The seal is to be put in all the way according to most of the advice, since if put in only flush, it will ride on the wider part and edge can burn? Fully seated it will stay square. The early seal drivers did push the seal flush (beetles?) but the later ones sunk it in- and was advised for type 4 (which is like the type2)? I made a seal pusher from an electrical coverplate with the 5 holes for flywheel drilled in. The seal can be driven in with old seal. The best way to remove the seal I have learned is to use a large bent prybar 1/2" wide and using outer edge of seal area as fulcrum, pry out the seal. This one came out pretty easily- it was the orange German one- may have shrunk? It only had about 10mi rotation and looked ok. I cannot recall putting any oil or grease on backside of flywheel as is reccommended. I cleaned things yesterday and noticed 2 things- there is some marking of the case seal surface due to past seal pull attempts. I cleaned up some high spots that looked like transfer of some metal. The flywheel I believe was a used replacement when I went to a larger trans and needed a bigger flywheel/clutch and starter. It worked fine for years. It is not "mirror smooth" in the seal area- I am trying to sandpaper it and polish with steel wool. This engine has 220K miles on the never split case, but heads, rod bearings, were redone 60K ago. I did remove the shims and felt the thrust bearing as Nyssa turned the crank side to side- felt no movement. In my reading, high oil pressure on the seal can come from excessive end play, blockage of return hole you see behind the flywheel mount, or blockage in return system by excessive sealer chipping off, especially silicone RTV- also stuck pressure relief valve? Loss of power/slipping clutch is why I pulled the engine over a year ago, and I did see oil on clutch. Don't recall it leaking onto the driveway. Replaced it, along with seal, and the woes started- I wonder still if something else is leaking (galley plugs?-but looks like clean original rtv around the plugs and back of flywheel was oily as if leak started int he center, not from a plug.). MUTS = Michael's Ultimate Thumb Saver oboe, clarinet support 93 Chevy Roadtrek 210P 78 VW Westfalia Camper
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