Vibration around 1300 rpm then goes - when at a standstill
Posted: Wed Oct 07, 20 2:36 pm
Having successfully broken in the cam, and just chasing down a few bits and pieces, I now have another problem
Engine idles nicely at around 800 RPM, but when you then bring the revs up there's some nasty vibration around 1300 rpm which then goes and once again it's smooth - with 727 in neutral.
Things I've checked:
Engine mounts
Tranny mounts
Tranny fluid level
Anything else that seems to be rattling loose.
Specifically rember torquing up the flex plate onto the engine and the torque converter
And had the 3 clunks as the converter went onto the splines
This is the 318 poly swap to a 360, the 318 being internally balanced. I fitted a B&M weighted flexplate so I could use the original torque converter. (No problems with it when it was previously fitted behind the 318.)
Am I missing something obvious? Really doing my head in
Engine idles nicely at around 800 RPM, but when you then bring the revs up there's some nasty vibration around 1300 rpm which then goes and once again it's smooth - with 727 in neutral.
Things I've checked:
Engine mounts
Tranny mounts
Tranny fluid level
Anything else that seems to be rattling loose.
Specifically rember torquing up the flex plate onto the engine and the torque converter
And had the 3 clunks as the converter went onto the splines
This is the 318 poly swap to a 360, the 318 being internally balanced. I fitted a B&M weighted flexplate so I could use the original torque converter. (No problems with it when it was previously fitted behind the 318.)
Am I missing something obvious? Really doing my head in