Well it was pretty bad after 120 miles driven yesterday non stop
Just a thought. Your SU has a dash pot on the top, a black knob to unscrew?
If it has unscrew it pull the plunger out and squirt some 3 in 1 oil or light engine oil in and push the plunger back in and screw it back.......
Just a thought. Your SU has a dash pot on the top, a black knob to unscrew?
If it has unscrew it pull the plunger out and squirt some 3 in 1 oil or light engine oil in and push the plunger back in and screw it back.......