Re: vibration in new engine
Was the rotating assembly balanced at assembly, including with the balancer and flexplate? Was your converter balanced? Has the balancer slipped? Just a few things to check, but it definitely sounds like a balancing issue. '87 truck...might this have been a 28 in-oz crank?
__________________
Jeff Chambers
1990 Mustang GT 10.032 Seconds / 137.5 MPH
14-time Street Warrior World Record Setter
CRT Performance
2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH
2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2
"There's nothing boring about a small block automatic shifting gears at 9400 rpm!"
|