SIII vivbration.

[MGB@UVVM.UVIC.CA]

My 82.5 xj6 has been gone through stem to stern and pronounced to be in
exceptional health in every way. The slight vibration I feel especially
at low speeds was investigated through the entire driveline. The only thing
found was a slightly catchy Ujoint on the left half shaft. It was replaced,
as have been another driveshaft Ujoint, the transmission mount, and the
offset of the driveline was declared appropriate by this experience Jaguar
mechanic. The vibration remains. Slightly worse on acceleration, but always
discernible up to 25 to 30 mph, and around 45. Somehow, it seems less
noticeable when the engine is cold and enriched. When it warms up, it is
more noticeable. NOW, the shop manual attributes vibration to Ujoints
(this has been eliminated as a cause), loose flang bolts (driveshaft) (I
presume this was verified), and the offset of the driveline, the advice
being to move the mount slightly to the left just until the vibration
disappears. This seems to be the last option open, although the mechanic
says that DECREASING the offset this way, is seldom a cure. HELP!!!
This is a minor but irritating problem. (By the way, the wheels are new,
and balanced; the problem was the same with the old wheels on, so that
is not likely to be the cause). Can the torque converter in the transmission
cause this? The transmission operates perfectly in every way (70,000 miles,
no rebuild, just fluid changes.) ANY SUGGESTIONS MUCH APPRECIATED before I
go back to the mechanic.
                        Gregory Andrachuk, Victoria, Canada

---

• Prev by Date: Transmission Fluid Types
• Next by Date: E Type Fuel Tank/Oil Mods
• Prev by thread: Transmission Fluid Types
• Next by thread: E Type Fuel Tank/Oil Mods
• Index(es):
  • Main
  • Thread