TS, TR, TX engines workshop manual
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5.4 Jointing Compounds
Some engines will have been assembled with jointing
compounds that have been superseded Providing ail traces of
the old compound and joint are removed the later specified
compounds can be used.
Valve Gear Cover
Assemble the joint dry and with all surfaces clean and dry.
Bottom of cylinders - TS/TR
Coat the cylinder on the jointing face with Hylomar PL32/M, stick
the joint to it and coat the joint.
Valve Guides - TS/TR
Coat the outside diameters of the guides with Wellseal before
driving in the plug.
Camshaft Expansion Plug
Coat the outside diameter of the plug with Wellseal before
driving in the plug.
Flanged Oil Sump Drain Plug
Coat the threads with Wellseal.
Taper Plugs
Bind the threads with PTFE tape or coat the threads with Three
Bond 1110B before screwing in the plug.
Oil Seals (not lip type) - TS/TR
Apply a little Hylomar PL32/M to the outside dameter of the seal.
Cylinder Head Gasket and Shims - TS/TR
Smear a small amount of High Melting Point Grease where the
shims seat, the side of the recess, both sides of each shim and
the gasket.
Cylinder Barrel Shims - TX
Assemble the shims dry with surfaces clean and dry.
Valve Rocker Stub Shafts - TS/TR
Coat the sealing groove nearest to the bolt hole with Wellseal or
Hylomar PL32/M.
Oil Pump Feed Plug
Coat the outside diameter of the plug with Wellseal.
Decompressor Bore
Apply Wellseal to the outside diameter of the TS/TR plug before
fitting.
Apply Wellseal or Hylomar PL32/M to the outside diameter of the
TX plug before fitting.
Flywheel End Bearing Housing Shims
Coat the bearing housing face with Loctite 221, place a shim
in place and coat the shim. Coat both sides of any subsequent
shims.
Cylinder Head Nuts and the Top Threads of the Cylinder Head
Studs - TS/TR
Coat the threads at the top of the stud, the nut threads and the
area of the top plate in contact with the nut with Wellseal.
Fuel Lift Pump
Assemble the joint between the pump and crankcase with all
surfaces clean and dry.
Crankcase Breather Pipe - TS/TR
Coat the knurls of the pipe with Loctite 601 and push it into the
top plate. Before the pipe reaches the hole in the cylinder head
coat the lower end of it.
Take care not to block the bore of the pipe.
Crankshaft Bucket Plug
Coat the plug periphery with Loctite 572 or Three Bond 1110B.
End Cover Bush - TS/TR
Coat the outside diameter of the bush before assembly with
Loctite 601 or Three Bond 1303.
Speeder Spring Anchor Pin
Coat the threads with Loctite 222 or Three Bond 1344 before
assembling the anchor pin to the speed control spindle.
End Cover
Assemble the joint between the cover and crankcase with all
surfaces cleans and dry.
Push Rod Tube Seals
Lightly coat the bore of the seal with Hellerine rubber lubricant
to aid assembly.
Oil Sump
Assemble the joint between the sump and crankcase with all
surfaces clean and dry.
Dipstick - TX
Lightly coat the 'O' ring to aid fitting into the crankcase.
5.5 Dimensions of Wearing Parts
The following information is given as a guide to the extent
by which components may reasonably be expected to wear,
without appreciable loss of performance. To maintain the
engine in good running order it is therefore recommended that
when the "Maximum Clearance" figure is reached, one or more
components affecting the clearance be replaced.
The wear to be allowed in parts refitted to an engine depends
on the life required to the next overhaul and the relative cost
of labour and materials. If labour costs are high it may pay to
replace parts before the maximum wear condition is reached
to avoid further work before the next scheduled overhaul.
Cylinder Bore Wear
The maximum advisable piston to cylinder clearance given is
the clearance between the bottom of the piston skirt, across
the faces, and the cylinder bore measured in the region of travel
of the piston skirt. The clearance is not to be measured at the
top of the bore.
When cylinders are rebored the lower skirt should be etched
or painted with the amount of the over-size.
Piston Ring Wear
The ring gaps given in the table are those to be anticipated
when checking rings in an unworn part of the bore. For every
0.01 mm (0.0004 in) by which the actual bore size exceeds the
initial dimension, the ring gap will increase by approximately
0.03 mm (0.0012 in).
The firing ring side clearance is measured with a new ring flush
with the top piston land.
Oversize and Undersize Items
Oversize pistons and piston rings, and undersize big end and
main bearing shells are available.
Reference should be made to the relevant Master Parts Manual
for the relevant part numbers.
Summary of Contents for TS/TR1
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