2005 Ski-Doo RT Series Shop Manual, Page 98Get this manual
Section 02 ENGINE Subsection 09 (ENGINE MEASUREMENT)
Measuring in Crankcase
First, check deflection with crankshaft in crankcaseIf deflection exceeds the specified tolerance, recheck deflection using V-shaped blocks to determine the defective part(s)See below
Measuring on Bench
Once engine is disassembled, check crankshaft deflection on V-shaped blocksIf deflection exceeds the specified tolerance, it can be worn bearings or bent crankshaftRemove crankshaft bearings and check deflection again on V-shaped blocks to determine the defective part(s)See measurement "A" in following illustration
A01C0SA
TYPICAL
CHECKING CRANKSHAFT ALIGNMENT
Remove both spark plugsInstall TDC gauge (PN 414 104 700) in spark plug hole on MAG side
414 104 700 A
A01C0RD
TYPICAL 1Measure at mid point between the key and the first thread A3 mm (18 in)
Bring MAG piston at top dead centerInstall the degree wheel (PN 529 035 607) on crankshaft end20