aren't a step by step guide to fitting a TS1 and assume you
already have some mechanical knowledge and experience of working
with Lambretta engines. Despite the heading most of these steps
are fairly generic for bearing replacement. The only difference
with a TS1 is the use of high quality, high load bearings. Don't
be tempted to cut costs here & use Indian bearings, German or
Japanese are the best. For a list of bearings
and oil seals click here.
As the heading mentions this is an
installation so all the necessary disassembly has already been
done inc. dismantling the engine & magneto side.
The 4 screws holding the crank seal plate in place may need an
impact screwdriver to loosen. Discard the screws as these shouldn't be used again
with the drive side bearing heat all around the bearing housing
with a propane torch.
Once the above plate is removed, turn the engine casing over &
heat up the bearing housing with a propane torch.
one oil seal and spacer still remain in the housing be very specific
where heat is applied. You'll find the housing needs a lot of heat
to ensure bearing removal is successful.
Although there are tools available on the market for drive/magneto
bearing insertion/removal, once the bearing housing
has been heated then should be able to gently tap it out with a hide
mallet & an oversize socket
this is not the best method, gently tap out the bearing using
a large socket & hide or rubber mallet. You'll need to
concentrate on the edge of the bearing as the centre race should
still be located on the crank.
This picture shows the main drive side bearing & oil seal plate
picture shows the magneto bearing, spacer & oil seal removed.
The tools at the top, from left are a crank
locating tool & a magneto side oil seal drift. Both available from MB
Focus now turns to the magneto side bearing. Remove the large
circlip & the first oil seal. This will expose the magneto
picture shows the magneto side casing with all components removed.
If yours is in a worse condition than this then it's time to get a