"hello all, i am new here and
"hello all, i am new here and impressed with the discussions. TY to the founders!!! i have a 1975 searay that i picked up with a shot motor, replaced it with a Jasper rebuild and now with less than 500 hours on the newly rebuilt motor the thrust bearing has gone out and of course taken the crank with it. My first question is "WHY?". the front side of the bearing has close to no ware but the back side is destroyed along with the crank where it touches the back side of the #3 main (thrust). It appears as if something was constantly trying to push the crank out of the front of the motor, i know a deformed torque converter will do this to a crank.. but the last time i checked a boat has no torque converter. Any help would be appreciated. OH... the main and rod bearings have definitly been hot (as if lack of lubrication [even though it always had plenty]), however the cam and it's bearings look great. Thanx again; Jeremy"
"hello all, i am new here and impressed with the discussions. TY to the founders!!! i have a 1975 searay that i picked up with a shot motor, replaced it with a Jasper rebuild and now with less than 500 hours on the newly rebuilt motor the thrust bearing has gone out and of course taken the crank with it. My first question is "WHY?". the front side of the bearing has close to no ware but the back side is destroyed along with the crank where it touches the back side of the #3 main (thrust). It appears as if something was constantly trying to push the crank out of the front of the motor, i know a deformed torque converter will do this to a crank.. but the last time i checked a boat has no torque converter. Any help would be appreciated. OH... the main and rod bearings have definitly been hot (as if lack of lubrication [even though it always had plenty]), however the cam and it's bearings look great. Thanx again; Jeremy"