CrankshaftInspection Straightness
Out-of-Roundand Taper 1. Removethe crankshaftfrom the cvlinder block (see p a g e7 - 11 ) . 2. Cleanthe crankshaftoil passageswith pipe c l e a n e r so r a s u i t a b l eb r u s h .
6. Placethe cylinder blockon the surfaceplate. 7 . C l e a na n d i n s t a l l t h eb e a r i n g so n t h e N o . 1 a n d No. 5 journalsof the cylinder block. 8. Lower the crankshaftinto the block.
3. Checkthe keywayand threads. 4. Measureout-of-roundat the middle of each rod and main journal in two places,The difference betweenmeasurementson each iournal must not be more than the servicelimit. Journal Out-of-Round: Standard (New): 0.004 mm {0.(X)02in.) max. ServiceLimit: 0.006mm (0.0002in.)
. o t a t et h e 9 . M e a s u r er u n o u to n a l l m a i nj o u r n a l sR crankshafttwo completerevolutions.The differencebetweenmeasurementson eachjournal must not be more than the servicelimit. Crankshaft Total Indicator Runout: Standard{Newl: 0.03mm {0.001in.) max. ServiceLimit: 0.04mm {0.002in.)
JJl-
T-T 5 . Measuretaper at the edge of each rod and main journal.The differencebetweenmeasurementson eachjournal must not be more than the service limit. JournalTaper: Standard{New):0.005mm (0.0002in.l max. 0.006 mm (0.0002in.l Service Limit:
7-13