[azasadny]

I drove my '911 for several years (spring/summer/fall) after finding several loose head studs on cylinders 1,2 and 3. I retorqued them and things were better, although temporarily. I replaced the engine this summer and sold the old longblock to a fellow Pelican as a rebuidable core and bought a recentl;y rebuilt 2.7L engine from another Pelican. I had lost some compression, and the "pfut, pfut" sound was obvious, but I didn't have the time/money or inclination to replace the engine until this year. I probably pur 3-4000 miles on the engne when the head studs were loose...