Oh that noise.
My SVX makes that noise and has beenfor the 3 years I have owned it with both engines. Not very noticable sometimes. I have to think about it to hear it. It might be a sticky lifter or valve or injector but I am not sure what it is. As long as it is not present at higher speeds or during accelleration I am not going to worry about it. Maybe some Marvel Mistery Oil would help. Not the drive train.
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May your transmission live forever.
SuperbVehicleXtraordinary
Proud sponsor of a 1992 SVX.