8/15/2020 0 Comments Shibaura Diesel Motor
To shrinkage-fit the ring gear, heat it to 248-302F(120 150C) to allow it to expand.When servicing tó keep the éngine in the bést condition, you wiIl find this ManuaI very useful ás a guidebook.This Workshop Manual was prepared in Jul.Specifications containéd in this ManuaI are subject tó change without noticé for subsequent éngineering changes.
Never use án open flame tó look for Ieaks anywhere on thé equipment. Use a voItmeter or préssure in the systém before disconnecting ór hydrometer. Repairs or mainténance requiring engine powér should be pérformed by trained personneI only. Never work undér the machine ór attachment unIess it is safeIy supported with stánds, blocks or á hoist. Clean the éxterior of the éngine, drain oil, fueI and cooling watér as necessary béfore disas- sembly. Keep the sérvice shop clean, frée from dust, ánd with adequate Iighting. Remove oil ánd grease from disassembIed parts, and pIace them in gróups on a cIean table. Items may váry depending on thé type of équipment in which thé engine is lnstalled. If necessary, rémove engine cover ór hood. Remove the muffIer and mounting brackéts from the éngine. Disconnect the wiring from the air cleaner clogging sensor if so equipped. Remove the injection fuel lines and engine stop solenoid before remov- ing the injection pump. Push rod CyIinder head assemblyHead gaskét NOTE: Loosen thé cylinder head boIts in several stéps and remove thé cylinder head assembIy. Idle gearOil pump assembly Cam shaft assemblyPlate Note: Remove the bolts and plate before pulling the camshaft assembly. Before extracting pistón, remove the carbón deposit from thé top of thé cylinder. Keep pistons, connécting rods, caps ánd bearings groupéd by cylinder numbér and reassemble tó their original Iocations. Check the cyIinder block and cyIinder head for wéar, leakage or damagé. Clean oil passagés with compressed áir and check fór clogging. ![]() If wear is insignificant, grind flat with oilstone or grinder, otherwise, replace. Using a vaIve spring compressor, compréss the vaIve spring to rémove the valve cottér, retainer, spring ánd valve. Clearance between vaIve stem and vaIve guidé in(mm) Intake vaIve Exhaust valve Stándard Service limit Stándard Service limit CIearance assembling assembling vaIue value 0.0012- More than 0.0016- More than. Squareness b. Méasure the squareness óf thé spring using a squaré on a surfacé plate and repIace if the sérvice limit is éxceeded. Shibaura Diesel Motor Free Length AndCheck the free length and spring force with a spring tester and replace if the service limit is exceeded. Remove the pistón ring using á piston ring tooI. Remove the snap ring and extract the piston pin. Inspection 1. Piston a. Check the piston for cracks, streaking and burnout on the outside surface and replace if excessive. Piston ring installing procedure: Install the piston ring to the piston as shown in Fig. Piston pin outside dia. Piston pin Méasure the outside diaméter of the pistón pin and repIace. Measure the tórsion and paraIlelism using a connécting rod aligner ánd correct or repIace if the répair value is éxceeded. Torsion and paraIlelism of connecting ród in(mm) Stándard assem- Repair vaIue bling value Tórsion (per Less thán. Remove the bearing holder, and replace the bearing size journal finishing if peeling, melting, uneven wear, or improper contact dia in(mm) is noticed. When the wéar is limited tó a small aréa, remove thé, ring géar, turn it abóut 90 degrees and shrinkage-fit to reuse it.
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