engine, rotax 1503 4-tec - Sea-Doo.net
engine, rotax 1503 4-tec - Sea-Doo.net
engine, rotax 1503 4-tec - Sea-Doo.net
- No tags were found...
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Section 01 ENGINES (<strong>1503</strong> 4-TEC)Subsection 06 (CYLINDER HEAD)2112R<strong>1503</strong>motr91A1. Rocker arm shaft2. Rocker arm shaft notchesInstall NEW rocker arm shaft screws no. 8.Torque as per following procedure:CAUTION: This assembly uses stretch screws.As the screws have been stretched from theprevious installation, it is very important to usenew screws at assembly. Failure to replacescrews and to strictly follow the torque proceduremay cause screws to loosen and lead to<strong>engine</strong> damage.– Torque screws at first to 10 N•m (89lbf•in)according to following sequence.6R<strong>1503</strong>motr93A521 3 4– Torquescrewsto20N•m (177 lbf•in).– Finish tightening screws turning an additional90° rotation with a torque angle gauge.R<strong>1503</strong>motr92A1. Rocker arm shaft screw2. Torque angle gaugeCAMSHAFT TIMING GEARNOTE: Although it is not necessary to positioncrankshaft to TDC for disassembly, it is a goodpractice to do it, as a troubleshooting step, toknow before disassembly if valve timing was appropriate.RemovalLock crankshaft with crankshaft locking tool(P/N 529 035 821), refer to CYLINDER BLOCKsection.Remove:– valve cover (refer to CYLINDER BLOCK section)– chain guide no. 12– Allen screws no. 13– camshaft timing gear no. 14.NOTE: Secure timing chain no. 15 with a retainingwire.InspectionCheck camshaft timing gear for wear or deterioration.If gear is worn or damaged, replace it as a set(camshaft timing gear and timing chain).For crankshaft timing gear, refer to CYLINDERBLOCK section.InstallationFor installation, reverse the removal procedure.Pay attention to the following details.76 smr2005-036