Connecting Rod Big End Bearing Selection/Crankshaft Journal Wear Check; Checking The Measured Clearance - Triumph 2012 Tiger 800 Service Manual

Crankshaft, Connecting Rods and Pistons
Connecting Rod Big End Bearing
Selection/Crankshaft Journal Wear
Check
1. Measure the bearing
clearance as follows.
Note:
The crankshaft
•
measured using ' Piastigage ' <Triumph part
number 3880150-T0301 ).
Do not turn the
•
crankshaft during
measurement as
'Piastigage ' .
a> Remove the big end cap from the journal to be
checked.
b) Wipe the exposed areas of the
and the bearing face inside the cap.
d
Apply a thin smear of grease to the journa l and a
small quantity of silicone release agent to the
bearing.
d) Tri m a length of the Plastigage to fit across the
journal. Fit the strip to the journal using the grease
to hold the Plastigage in place.
e> Lubricate the threads and u nder-head of the bolt
with molybdenu m disulphide grease. Refit the
bearing and cap and tighten the big end bolts (see
5-9).
page
f)
Release the bolts and remove the cap being
measured. Using the gauge provided with the
Plastigage kit, measure the width of the
compressed Plastigage.
5.10
and crankshaft journal
journal clearances are
connecting rod and
the clearance
this will damage the
crankshaft journal,
SeNice Manual Tiger 800 and Tiger SOOXC
-

Checking the Measured Clearance

Con rod big end bearing/crankshaft journal
clearance
Standard :
Service limit:
Note:
I f the measured clearance
•
service limit, measure the crankshaft journal
diameter.
Crankshaft Journal diameter
Standard :
Service limit:
Note:
If any crankshaft journal has worn beyond
•
the service limit, the crankshaft must be
replaced. Due to the advanced techniques
used during manufacture, the crankshaft
cannot be re-ground
bearings are available.
0.0 3 5 - 0.065 m m
0.070 mm
exceeds the
3 2 .9 84 - 3 3 .000 mm
3 2.960 m m
and no oversize