Like a bad relationship, when there's more hate then love, it's time to move on. That's why the PO sold it for so cheap. There's no such thing as a cheap BM Trouble U. You either paid at the beginning or paid at the end.

Sounds like a rebuild is in your future. Either you have a crack drum or one of the o-ring needs to be replaced. In either case it means a rebuild.

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2006 Infiniti G35
2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD
Lotus Europa 1970 Destroyed by fire
Lotus Europa 1970 S2 Renault Powered
Lotus Type 52 1970 Twincam Webers Powered
PORSCHE 911 Targa 1982 The Garage Queen
Audi Avant donated to Kars for Kids
BMW 525IT Sold
Audi 4000CS Quattro Sold
Jensen Healey Lotus Powered Sold
Opel 1900 Sold
Triumph Spitfire 1971 Sold
Triumph Spitfire 1968 Sold
Plymouth "Cuda" 340 Six pack SOLD