|
I have a bit of vibration between 25-mph and 40-mph. Any other speed and the ride is as smooth as can be.
Only vibrates when under power, if coasting with clutch depressed, no vibes.
Also vibrates on steep downhill at these speeds with foot off accel and engine "braking".
This is a new acqusiton, extreemly clean restoration, very tight front end including king pins, but the front end does that groan when starting out from dead stop with wheels turned sharply. To my horror, when lubing the front end, the zirk fittings were both missing top and bottom of the right king pin (amazing because of the otherwise splendid attention to detail on this resto), and I could see the kingpin through the threaded hole, obvously dry.
When I received the car, the sway bar was disconnected at the right end, I used spare parts to reconnect it.
Transmission also reported as being rebuilt,and from sterile appearance of gaskets, this seems to be true.
One of the u-bolts was not tight on the rear leaf spring (its a Duett), "has the rear end shifted?"
The u-joints appear tight, there is a bit of lash between the ring and pinion of the rear end, but not enough to make any noise during driving.
I leaned the stromberg carb (NOS) for emmissions inspection, so I was running lean, but have restored the orginal needle setting.
Good compression 135-140, however strange is that checking for non-firing cylinder by pulling off one wire at a time seems to have no effect on idle (this is a first).
So... is vibration at this speed a typical symptom of mis-alignment of the rear end, or of a broken pressure plate spring? Is there something I am overlooking?
Thanks for the interest and assistance, Leroy
|
