JasonS
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I talked to the folks at a regional turbo repair shop. They brought up a few points:
-This is a very old design (384 were built in 1969).
-While rebuild kits for a basic 4LE are available, housings and turbines are no longer supported by Borg Warner.
-Very few turbos had wastegates during this time and they were very crude.
-The nozzle ring was used to help spooling up the turbo (turbo is otherwise too big). The nozzle ring appears very restrictive to me.
-The serial number is recognizable as manufactured for Continental but there are no records of this design being used for Continental's engines
-Not worth rebuilding; stick with the 3LM but be careful of overspeeding. They didn't think overspeeding would be an issue even if I blocked off the wastegate on the 4LE.
-Before I knew the turbine was damaged, they didn't think that a minor leak on the wastegate would cause much in the way of boost reduction since the wastegate would be open anyway. In other words, 8psi would be the best that I could get out of it. Does anyone have any actual boos numbers for this turbo?
-This is a very old design (384 were built in 1969).
-While rebuild kits for a basic 4LE are available, housings and turbines are no longer supported by Borg Warner.
-Very few turbos had wastegates during this time and they were very crude.
-The nozzle ring was used to help spooling up the turbo (turbo is otherwise too big). The nozzle ring appears very restrictive to me.
-The serial number is recognizable as manufactured for Continental but there are no records of this design being used for Continental's engines
-Not worth rebuilding; stick with the 3LM but be careful of overspeeding. They didn't think overspeeding would be an issue even if I blocked off the wastegate on the 4LE.
-Before I knew the turbine was damaged, they didn't think that a minor leak on the wastegate would cause much in the way of boost reduction since the wastegate would be open anyway. In other words, 8psi would be the best that I could get out of it. Does anyone have any actual boos numbers for this turbo?