Yanmar Marine Diesel Engine Governor Assembly Guide

  This article mainly introduces Assembling  governor

For Yanmar Diesel Engine Agriculture Excavator Tractor Marine Generator Diagnostic tool

Inspect all parts after disassembly and replace any parts as necessary. Before starting reassembly, clean new parts and parts to be reused, and put them in order.
Make sure to readjust the unit after reassembly to obtain the specified performance.
(1) Insert the governor weight assembly in the taper portion at the end of the fuel pump camshaft, stopping it with the hole in the fuel coupling ring or holding the coupling with a vise, mount the rest, and tighten the governor weight nut.

(2) Open the governor weight to the outside, and insert the sleeve in the end of the fuel pump camshaft.

NOTE: Make sure that the sleeve moves smoothly after ln-
serting it.
(3) When the stop lever has been disassembled, mount the stop lever return spring on the stop lever, tap the stop lever lightly with a wooden hammer to insert it, and tighten the stop lever stop pin.

(4) When the control lever shaft has been removed, lightly tap the control lever shaft and washer from inside the governor case, using an appropriate plate.
(5) If the governor has been disassembled, tap in the spring pin.

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(6)Mount the governor lever assembly to the governor
link

NOTE:1. Make sure that the correct governor link mount.
ling holes are used, and that it is mounted in the correct direction.
2. Make sure that the governor link moves smoothly.
(7) Put the governor lever shaft assembly in the governorcase, insert the governor lever shaft, and tap it in until the O-ring groove comes out the opposite side of the governor case.

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(8) After you have mounted the O-ring, tape the governorlever in the opposite direction, and mount the E-shaped stop rings on the grooves at both ends.

NOTE: After mounting the governor lever assembly, make sure the governor lever assembly moves smoothly.
Printed In Japan A0A1015-9110SP



(9) Fit the stop lever return spring to the end of the governor lever shaft.

(1o) Hook the governor spring on the control lever shatt and tension lever hook with radio pliers.

(11) Pull the governor link as far as possible towards the governor case mounting surface, insert the governor link pin in the fuel control rack pin hole and fit the snap pin on it.

(12) Mount the governor case to the fuel pump unit while lightly tapping it with a wooden hammer, and tighten the bolts.
(13) Place the adjusting spring and adjusting rod on the governor case cover adjusting bolt, and mount the governor case cover.

(14) Insert the control lever in the control lever shaft, and tighten the nut.

NOTE:Move the control lever back and forth to make sure that the entire link moves smoothly.

How to Disassembly yanmar Diesel Engine Governor

  This article mainly introduces  yanmar marine diesel engine Governor disassembly

For Yanmar Diesel Engine Agriculture Excavator Tractor Marine Generator Diagnostic tool

(1)  Remove the governor case.

NOTE: Loosen the hex bolt on models with an angleich spring.

(2) Remove the control lever hex nut, and pulil out the con-
    trol lever from the control lever shaft.

(3) Remove the governor case bolt. Remove the governor case(parallel pin) from the fuel pump until while lightly tapping the governor case with a wooden hammer.
    Create a gap between the governor case and fuel pump by moving parts of the governor lever.

(4) Pull out the governor link snap pin by inserting needle nosed pliers between the fuel pump and governor case.
case.

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(5) The governor and fuel pump come apart by sliding the governor case and fuel pump apart and pulling out the link pin of the fuel control rack.

(6) Remove the stop lever return spring from the governor lever shaft.

(7) Use needle nose pliers to unhook the governor spring from the tension lever and control lever shaft.

(8) Remove the snap-rings on both ends of the governor lever shaft.

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(9) Put a rod 8mm (0.3150in.) in dia. or less in one end of the governor lever shaft, and tap the governor shaft until the O-ring comes out the other side of the governor case.

(10) Atter removing the O-ring. lightly tap the end of the shaft that you removed the O-ring from, and removethe governor lever shaft. Then remove the governor shaft assembly and washer.

(11) Remove the governor link from the governor lever.

NOTE: The governor assembly consists of the governor lever, tension bar, bushing, throttle spring and shifter, and is normally not disassembled.
The spring pin is removed when you replace the shifter or throtle spring.
(12) When you need to pull out the stop lever, remove thestop lever shaft stop pin, and lightly tap the inside of the governor case.

(13) When you need to pull out the control lever shaft, tap the end of the shaft with a wood hammer.

NOTE:1.Do not remove the fuel limit nut from the governor case unless necessary.

(14) Pulil out the governor sleeve on the end of the fuel camshaft by hand.

(15) Turn the governor weight with a box spanner two or three times to loosen it, stopping it with the hole inthe fuel coupling ring or holding the coupling with a vise.

NOTE:When the taper lit comes apart after you have removed the nut，the governor weight may lly out一Be Careful.

(16) Remove the governor weight assembly from the fuel pump cam using the governor weight puling tools.

NOTE: The governor weight assembly is made up ol the governor weight, support and pin. Do not dis.
assemble.
Printed in Japan A0A 1015-9110SP