MAKE SURE YOU HAVE PICKED THE RIGHT GREASING ARTICLE
FOR YOUR MODEL YEAR ! YOUR CHOICES CAN BE FOUND HERE
UNDER "FRONT SUSPENSION GREASING".
|Please note that this configuration was only produced for a short period and not long ago. Over time, the community will become more familiar with them as experience grows. These pages will be updated as warranted.|
The bushes fit in the stub axle tubes, one at the top and the other at the bottom of the stub axle tube. As they do not fill the entire length of the tube, a grease reservoir or "grease holding area" is formed between the two bushes. As the stub axle slides up and down the kingpin, this reservoir greases the kingpin (and therefore the bushes). The stub axle has a grease nipple exactly adjacent to the middle of this reservoir to service and fill this area periodically.
Sometime in the latter part of 2008 (?), the Works apparently
decided that the modification earlier in the year, adopting the idea of
races (aka roller bearings) was not providing grease to the steering
race assembly. The system was again altered in 2008 to create a direct
feed to the roller bearing assembly through the kingpins from a grease
nipple installed at its top bolt. Though similar to the earlier one-shot
oiler, this passage is drilled wider and ends at the new roller bearing.
As all other steering race/roller bearing systems used on Morgan do not
require this, there is speculation that the positioning of the grease exit
hole was left in the stub axle's annular
groove (fit in 2000). This would mean that the steering itself
would block its feed hole and explain the necessity of the later modification.
axles continue using the newer bronze bushes. These are different from
the pre-2002 ones that had a solid inner surface as they have a large groove
carved inside that allows grease flow. There is a little lip remaining
at the end. This lip is supposed to stop grease exiting the assembly through
the groove. Obviously, the lip requires the bushes to be installed
at only one sense..with the lip at the bottom of the stub axle tube for
the lower bush and the lip facing up for the upper bush. Facing the bushes
in the wrong direction will block the grease that should fill it and allow
the entry of grit rather than grease into the groove.
|N.B. There is also a concern that if/when the thin lip wears away, the grease will exit it's reservoir with the pumping action of the suspension requiring more frequent greasing. These bushes should never be used with mild steel kingpins.|
The Morgan Manual recommends 1000 miles and they are right for the bushes at least. The interval for greasing the upper nipple is still unknown. Grease it at the same time as the bushes.
Greasing can be done with the car on the ground or on jack stands. A one hand "pistol" greaser can be used. (When I am home, I use a powerful electric grease gun equipped with a flex hose. The device effectively creates an extra hand which makes the job easier.) The grease nipple angle can make it hard to properly center the grease gun but the angle of the grease nipple can be changed to suit can be changed. or alternatively, buy an angled nose for your grease gun. A slight angle will do.
1. Turn the steering wheel until you have the best angle at the nipple,
2. Pump until the grease flows out under the damper plate
(which sits on the stub axle shelf.). (That takes a lot of pumps!)
|If the grease flows out the bottom of the assembly, it is a sign that your car is due for a front end bush and kingpin renewal OR the bottom lips of the bushes have worn away. See the articles in this Manual on that.|
4. Turn the steering wheel and do the other side.
5. Change the greasing gun nose for a grease hose attachment and fit the greaser to the nipple fit into the top kingpin bolt. (see image and diagram above). Pump until the grease exits the steering race/roller bearing assembly.
6. Now do the same for the other side
7. Clean away any excess with a rag and, if necessary, brake cleaning spray. If any grease gets on your adjacent brake rotors, the effect on braking and steering is dangerous.
|PLEASE NOTE: I have received many notes lately on the difficulties owners are having pumping grease into the stub axles in front. At first I thought it was the grease gun they chose, but I soon found the problem was even more basic. Many owners change the stub axle grease nipple (zirk) for angled ones which allow an easier time fitting their grease gun onto it. Sadly, they do not notice that the threaded portion of the Morgan grease nipple is short..shorter than most available. When they fit the new nipples they often thread them until they are forced into the kingpin. This blocks the flow of grease despite the use of eye-popping pressure. The front gets little of its needed grease feed and the kingpin can be damaged.|