Kioritz ENGINES

KIORITZCONDENSED SERVICE DATA

KEC340/22ENGINE MODEL KEC295RS/2 KEC340RS/2 KEC340/5 KEC340/22A KEC340/22B KEC340/23LCBore-mm 56 60 60 60 58 58

Inches 2.205 2.362 2.362 2.362 2.283 2.283Stroke—mm 60 60 60 60 64 64

Inches 2.362 2.362 2.362 2.362 2.520 2.520No. of Cylinders 2 2 2 2 2 2Displacement—cc 295.6 339.3 339.3 339.3 338.2 338.2

Cubic Inches 18.03 20.7 20.7 20.7 20.6 20.6Cooling Type Axial Fan Axial Fan Axial Fan Axial Fan Axial Fan LiquidInduction Type Third Port Third Port Third Port Reed Valve Reed Valve Reed ValveCarburetor Model Mikuni Mikuni Bendix Walbro Mikuni Mikuni

Number Used 2 2 1 1 1 2Ignition:

Type CD CD ET ET CD CDPoint Gap—mm 0.3-0.4 0.3-0.4

Inch 0.014 0.014Edge Gap—mmTiming Advance? Yes Yes Yes Yes Yes YesTiming BTDC—Degrees 20 20 10 5 20 20Inch 0.096 0.096 0.023 0.006 0.096 0.096Measured at Adv. Adv. Retard Retard Adv. Adv.

Spark Plug:Champion QNl QNl RN2 RN2 QNl QNlElectrode Gap-mm (1) (1) 0.5 0.5 (1) (1)

Inch (1) (1) 0.020 0.020 (1) (1)FuehOil Ratio 20:1 20:1 50:1 50:1 50:1 50:1

(1) Spark plug is factory gapped at 0.028 inch. Renew plug when gap reaches 0.060.

ENGINE MODEL KEC400/22Bore—mm 63

Inches 2.480Stroke—mm 64

Inches 2.520No. of Cylinders 2Displacement—cc 399

Cubic Inches 24.34Cooling Type Axial FanInduction Type Reed ValveCarburetor Model Walbro

Number Used 1Ignition:

Type ETPoint Gap—mm 0.3-0.4

Inch 0.014Edge Gap—mmTiming Advance? YesTiming BTDC—Degrees 5

Inch 0.006Measured at Retard

Spark Plug:Champion RN2Electrode Gap—mm 0.5Inch 0.020

FuehOil Ratio 20:1(1) Spark plug is factory gapped at 0.028 inch. Renew

KEC440/568

2.67760

2.3622

435.826.58

Axial FanThird Port

Bendix1

ET0.3-0.40.014

Yes10

0.023Retard

RN20.5

0.02020:1

KEC440/22KEC440/22A

662.598

642.520

2437.926.71

Axial FanReed Valve

Mikuni1

ET0.3-0.40.014

Yes10

0.024Retard

RN20.5

0.02020:1

KEC440/22B66

2.59864

2.5202

437.926.71

Axial FanReed Valve

Mikuni1

CD

Yes20

0.096Adv.

QNl(1)(1)

50:1

KEC440/23LC66

2.59864

2.5202

437.926.71

LiquidReed Valve

Mikuni2

CD

Yes20

0.096Adv.

QNl(1)(1)

50:1plug when gap reaches 0.060.

326

ENGINES Kioritz

MAINTENANCE

CARBURETOR. Bendix, Mikuni orWalbro carburetors are used. Refer toappropriate paragraphs of CARBURE-TOR SERVICE Section for overhauldetails.

SPARK PLUG. CHAMPION RN2spark plugs are used in engines withEnergy Transfer ignition systems. Re-commended spark plug gap is 0.020inch (0.5 mm).

Models with Capacitor Dischargeignition use a QNl Surface Gap resistorplug. Built-in plug gap is 0.028 inch;renew plug when gap widens to 0.060inch.

The recommendations given in CON-DENSED SERVICE DATA tables arefor normal operation. A different heatrange plug may improve performanceunder some conditions. Refer to SparkPlug Selection paragraphs of SERVICEFUNDAMENTALS Section for addi-tional information on spark plug selec-tion.

IGNITION AND TIMING. Breakerpoint gap on ET models should be0.3-0.4 mm (0.012-0.016 inch). Points

can be adjusted after removing recoilstarter, starting pulley and fan drivesheave. All models are equipped with acentrifugal timing advance which pro-vides retarded timing for starting only.Both cylinders must he timed as nearlyas possible alike. It is suggested thatpoint gap and timing be checked on onecylinder; then timing synchronized hyvarying the point gap on the othercylinder, making sure point gap onboth cylinders remains within thesetting range provided.

On models with CD ignition, bothcylinders fire simultaneously. Runningadvance is electronic and occurs at anengine speed of 2500-2800 rpm. Timingis done with a timing light at operatingspeed after first painting timing markson fixed face of drive sheave andfashioning a timing pointer as shown inFig. 1. JOHN DEERE provides atemporary timing decal as shown. Totime the engine, remove drive belt andeither spark plug. Install a dial indica-tor in spark plug hole then find andmark TDC on sheave face. Turn sheaveclockwise about 1/8 turn; then counter-clockwise until piston is 0.096 inch(2.438 mm) below TDC position. Markthe second 20° BTDC line at this point,aligning with the installed timingpointer. Remove dial indicator andreinstall spark plug. Connect the powertiming light to either spark plug, thenstart and run engine at 3000 rpm orfaster. Spark should occur when 20°BTDC mark aligns with timing pointer.If timing is incorrect, remove starter,flywheel housing, flywheel and alter-nator stator. Loosen the four screwssecuring timing ring (T—Fig. 2) tocrankcase and move timing ring coun-ter-clockwise to advance the timing orclockwise to retard timing. Because

Fig. 1-^A homemade wire timing pointer andtiming marks painted on drive sheave are

used to time CD ignition system.

Fig. 2 —Schematic view of CD ignitionsystem.

A. Alternator statorC. Ignition coils F. FlywheelE. Electronic pack T. Timing ring

both Spark plugs fire at the same time,timing needs to be checked for only onecylinder.

LUBRICATION. The engine is lubri-cated by oil mixed with the fuel. Themanufacturer recommends Regular orPremium gasoline and a good ashlessTwo-Cycle Oil which meets BIA Speci-fication TC-W. Do not use no-leadgasoline. Refer also to Vehicle Manu-facturers recommendations and to Two-Cycle Lubrication in ENGINE DESIGNFUNDAMENTALS Section of thismanual.

COOLING FAN AND BELT. Fanhell tension is correct when deflectionis approximately 9 mm (3/8 inch) onReed Valve Engines or 6 mm (V4 inch)on Piston Ported Engines; measured

Fig. 4—Checking coolant pump drive belttension on liquid cooled units.

15

Fig, 3—Checking cooisnt fan belt tension onair cooled modeis.

Fig. 5—Expioded view of coolant fan, fanhousing and associated parts used on piston

ported models.1. Shaft nit2. Lockwasher 9. Housing3. Washer 10. Bearings4. Spacer n . Snap ring5. Sheave half 12. Fan6. Spacer shims 13. Housing plate7. Belt 14. Cover8. Drive pulley 15. Cylinder shroud

327

Kioritz ENGINES

midway between pulleys as shown inFig. 3. To tighten the cooling fan belt,transfer shims (6—Fig. 5) from betweensheave halves (5) to front of front half,increasing effective diameter of drivensheave. Refer also to Fig. 6. Tightenfan shaft nut to a torque of 30 ft.-lbs.

COOLANT PUMP AND BELT. Onliquid cooled models, coolant pump beltshould have approximately 9 mm (3/8inch) deflection measured midway be-

Fig. 6 —Cooiing fan, fan housing andassociated parts used on reed valve induc-

tion engines.

Fig. 7—View of Kioritz engine with third portinduction.

Fig. 8—View of Kioritz engine with reedvaive induction system. Engine is similar inappearance to third port engine except foriow positioning of carburetor and intake

manifold.

tween pulleys as shown in Fig. 4.Adjust belt tension by loosening pumpmounting bolts and moving pump up ordown as required.

REPAIRS

Air-Cooled Models

TIGHTENING TORQUES. Tightening torques are as follows:

Cylinder to crankcase:Third port modelsReed valve models

Ft.-Lbs.

15-18

(See Cylinder Head)Cylinder head:

Third Port Models.Reed valve models.

Long stud nuts ..Short stud nuts .

Crankcase:Third port models .Reed valve models.

FlywheelFan shaftIntake manifold.

Reed valve models.

1518

12-1557

12-1513-1845-5028-31

5-7

Kg-m

2.1-2.5

2.1-2.5

1,7-2.10.7-1.0

1.7-2.11.8-2.56.2-6.93.9-4.3

0.7-1.0

DISASSEMBLY AND REASSEM-BLY. Although similar in appearance,disassembly procedures differ betweenthe Third Port Engines shown in Fig. 7and Reed Valve Models shown in Fig.8. Refer to the appropriate followingparagraphs for procedures.

THIRD PORT ENGINES. Refer toFig. 5 for cooling fan and associatedparts and to Fig. 9 for main enginecomponents.

To disassemble the removed engine,first remove spark plugs and cylindershroud, then remove inlet and exhaustmanifolds leaving carburetor attachedto inlet manifold. Cylinder heads andcylinders can now be removed for topend work. Crankcase disassembly willrequire remov^al of fan housing, fly-wheel and housing plate.

Identify pistons for reinstallation andnote that arrows on piston crown pointto exhaust side. Use a suitable pistonpin tool for pin removal or heat thepiston.

To separate the crankcase, removeretaining bolts and break sealant gripby tapping upper crankcase half lightlywith a soft hammer as shown in Fig.10. DO NOT attempt to pry crankcasehalves apart with a screwdriver orsimilar tool. Prying can damage matingsurfaces.

When reassembling crankcase, lubri-cate crankshaft components thoroughly

Fig. 10—Break sealant grip on crankcasehaives by tapping with a smaii hammer.

Fig. 9—Expioded view ofKioritz third port induction

engine.

328

ENGINES Kioritz

and install oil seals on each end ofcrankshaft, lips inward. Be sure retain-ing half-washers (Arrows—Fig. 11) areinstalled in their grooves in lowercrankcase half then position shaftassembly on crankcase lower half.Make sure sealing surfaces are cleanand smooth and coat hoth sealingsurfaces with a good non-hardeningsealant. Fit upper crankcase half andinstall the four center topside bolts (1,8, 9 and 10—Fig, 12) and tighten thefour bolts evenly until crankcase halvesmeet. Install remainder of bolts andtighten evenly in sequence shown tothe recommended torque of 12-15ft.-lbs. (1.7-2.1 kg-m).

'I

Fig. Ii —Retaining half-washers (Arrows)must be in position in bottom crankcase half

before positioning crankshaft.

\ 7 ;

Use a heat gun or oven to warmpistons and install pin, with arrow ontop of piston pointing toward exhaustport side. Cylinders are not inter-changeable, and are marked "L'* (left)and "R" (right) (Arrow—Fig. 13) bystamping on cylinder flange. Installcylinders using a suitable ring compres-sor, wooden blocks to hold pistonsteady, and new base gaskets. Tightencylinder base nuts just past fingertight, then install and tighten intakemanifold to properly align cylinders.Tighten cylinder base nuts in a criss-

g. 14—Cylinder head tightening sequenceto be used on six-stud cylinder heads.

Fig. 75—Cylinder head tightening sequenceto be used on models with five-stud cylinder

head.

cross pattern to a torque of 15-18ft.-lbs. (2.1-2.5 kg-m).

Cylinder heads are not interchange-able and should be installed withmachined sides together. Cylinder headgaskets are marked 'TOP** for correctassembly. Cylinder head gaskets shouldbe installed dry. The long standoff nutswhich support shroud should be in-stalled at (3-Fig. 14) on KEC 295engine or (5—Fig. 15) on other models.Tighten cylinder head stud nuts to atorque of 15-18 ft.-lbs. (2.1-2.5 kg-m) inthe sequence shown in Fig. 14 for KEC295 engine or Fig. 15 for other models.

REED VALVE ENGINES. Refer toFigs. 6 and 16 for exploded views.Cooling fan differs from third portengine in that impeller assembly isoutboard of drive pulley. Cooling shroudattaches to cylinder head bosses andstandoff nuts located as shown hyarrows. Fig. 17. Cylinders, cylinderheads and pistons are not interchange-able for left and right side. Cylindersare retained to crankcase by four studswhich extend through cylinders andbecome four of the eight cylinder headstuds for each cylinder unit.

To disassemble the removed engine,first remove spark plugs and cylindershroud, then remove inlet and exhaustmanifolds and reed valve plates. Cylin-der heads and cylinders can now beremoved for top end overhaul. Crank-case disassembly will require removalof fan housing, flywheel, alternatorstator and timing ring. Punch mark

(2)

Fig. 12—Tighten crankcase screws in se-quence shown. Broken lines indicate heads

are located on bottom of crankcase.

Fig. 13—Cylinders are marked "R" {right) and"L" (left) on cylinder flange as shown by

arrow.

Fig. 16—Exploded visw ofreed valve type induction

engine.

329

Kioritz ENGINES

installed position of timing ring beforeloosening retaining screws to avoidretiming problems on assembly.

Use a heat gun or other suitablemeans to thoroughly warm the pistonbefore removing piston pin. Note thatexhaust port locating arrows on tops ofpistons angle outward toward ends ofshaft.

To assemble the engine, suitablysupport upper half of crankcase oncylinder studs and position bearingretaining half-washers in their groovesas shown by arrows. Fig. 18. Lubricatecomponents thoroughly and coat bothcrankcase flanges with a suitable non-hardening sealant. Reposition crank-shaft assembly and install crankcaselower half, being sure locating dowelsseat properly. Tighten retaining capscrew and stud nuts evenly to a torqueof 13-18 ft.-lbs. (1.8-2.5 kg-m) in thesequence shown in Fig. 19.

When installing timing ring (B—Fig.20) align the previously made punchmarks. If timing position is not marked,center mounting screw holes in adjust-ing slots then check timing after engineis running. Install alternator stator (A)and flywheel by reversing removalprocedure. Some engines have a pto

Fig. 17—Partially axplodad viaw of angina.Cooling shroud attachas to points Indicated

by arrows.

end seal guard (Arrow—Fig. 21) whichprevents a broken drive belt fromdamaging crankshaft seal. Center holein guard over shaft when installing, toprevent guard from touching shaft.

With crankcase assembled, repositionwith cylinder studs uppermost. Warmthe pistons and reinstall the exhaustport locating arrows angling outwardand away from reed valve opening sideof crankcase. Cylinders are not inter-changeable and are stamped "L" (left)and "R" (right) on cylinder flange.Install cylinders using a suitable ringcompressor, wooden blocks to holdpiston steady and new base gaskets.Install exhaust manifold using newgaskets; this aligns cylinders. UseSilicone Rubber Adhesive on exhaustmanifold gaskets and tighten manifoldstud nuts to a torque of 10-12 ft.-lbs.(1.4-1.7 kg-m). Install new cylinder,head gaskets (no sealant) and cylinderheads. Tighten long stud nuts (1through 4—Fig. 22) to full torque of12-15 ft.-lbs. (1.7-2.1 kg-m) beforetightening small nuts (5 through 8).

Complete the assembly by reversingdisassembly procedure, adjusting fanbelt and timing as previously outlined.

PISTONS, PINS, RINGS AND CYL-INDERS. Piston pin should be a tight

Fig. 19—Tightan crankcasa ratalning studnuts and cap scraw in saquanca indicated

whan viawad from bottom.

fit in piston bore at room temperatureand needle bearing should not haveperceptible clearance between pistonpin and connecting rod bore.

Piston rings are pinned in place. Toprings on most 1977 and later enginesare Semi-Keystone type. On otherrings recommended side clearance is0.0012-0.0028 inch (0.03-0.07 mm). Rec-ommended piston clearance in cylinderis 0.0055-0.007, with a wear limit of0.008.

CONNECTING RODS, CRANK-SHAFT AND BEARINGS. The crankshaft and connecting rods, includingcenter main bearings and seals, areonly available as an assembly. Measureside shake of connecting rod at smallend after removing cylinders andpistons. If shake exceeds 3.0 mm (1/8inch) install a new or rebuilt crankshaftassembly. Outer end bearings can berenewed if care is used in removal andinstallation to keep from damagingshaft in any of its built-up joints.Support shaft on V-blocks on installedouter bearings and measure runout atends of shaft using a dial indicator. Ifrunout exceeds 0.002 inch (0.5 mm),renew or straighten shaft.

REED VALVE UNITS. Refer to Fig.23 for an exploded reed valve unit.Valve leaf (3) is of stainless spring steeland seating surface of reed plate (5)

Fig. 21—Soma anginas hava a pto-and saalguard as shown by arrow.

Fig. 18—Bearing retaining half-washers arepositional In top crankcasa half as Indlcatad

by arrows.

Fig. 20—Whan Installing timing ring (B)aiign previous marks if present, or cantar

mounting studs in siotted holas.

Fig. 22—Whan installing cyiindar haads, firsttightan through-stud nuts (1 through 4) toindlcatad torqua, than short studs (5 through

8}, Racommandad saquanca is shown.

330

ENGINES Kioritz

has a bonded plastic coating. One shim(4) must be installed underneath valvereed to properly position the reed.Reed stop (2) is carefully arched forbest performance and should not hereformed. Do not attempt to straightena bent or damaged reed or reform reedstop in an attempt to alter perfor-mance. Renew reed or reed stop ifdamaged in any way and reed plate ifcoating is damaged at reed seatingarea. Tighten reed plate retainingscrews evenly and securely to slightlycompress plastic coating beneath theshim.

Liquid Cooled Models

TIGHTENING TORQUES. Tightening torques are as follows:

Ft.-Lbs. Kg-mCrankcase 15-18 2.1-2.5Cylinder to crank-

case 15-18 2.1-2.5

Fig. 23—Exploded view of reed valve plateand associated parts.

1. Gasket 4. Shim2. Reed stop 5. Reed plate3. Valve leaf 6. Gasket

Cylinder Head:Crankcase stud

nutsCapscrews to

cylinder block . . .Top tank to head . .

FlywheelManifold stud nuts. . .

21-23

14-1613-1455-6010-12

2.9-3.2

1.9-2.21.8-1.97.6-8.31.4-1.7

DISASSEMBLY AND REASSEM-BLY. To disassemble the removedengine, first remove coil cover, coils,electronic pack and spark plugs. Re-move intake and exhaust manifoldsleaving fuel pump attached to manifold.

Remove coolant pump cover, recoilstarter, starter cup and coolant pumpdrive pulley. Remove coolant pump andflywheel housing.

Cylinder head and cylinders can nowbe removed for service on pistons,rings and cylinders. Crankcase disas-sembly will require removal of fanhousing, flywheel, alternator stator andignition timing ring. Before removingtiming ring, punch-mark the installedposition to aid in timing during assem-bly.

Identify pistons for reinstallation andnote that arrows on piston crown pointto exhaust side and angle outwardtoward end of crankcase as shown in

Fig. 28. Use a suitable piston pinremoval tool or heat pistons to expandpin bosses for removal.

To separate the crankcase, removeretaining bolts and break sealant gripby tapping upper crankcase half lightlywith a soft hammer. DO NOT attemptto pry crankcase halves apart with ascrewdriver or similar tool. Someengines have a pto-end seal guardwhich must he removed before crank-case halves can he separated.

When assembling crankcase, lubri-cate crankshaft components thoroughlyand install on each end of crankshaft,lips inward. Be sure retaining half-washers (Arrows—Fig. 26) are installedin their grooves in upper crankcasehalf. Coat both crankcase flanges witha suitable non-hardening sealant. Repo-sition crankshaft assembly and installcrankcase lower half, being sure loca-ting dowels seat properly. Tightenretaining cap screw and stud nutsevenly to a torque of 15-18 ft.-lbs.(2.1-2.5 kg-m) in the sequence shown inFig. 27.

When installing timing ring, align thepreviously made punch marks. If tim-ing position is not marked, centermounting screw holes in adjusting slotsand install the screws, then checktiming after engine is running. Installalternator stator and flywheel. If engineis equipped with pto-end oil seal guard.

Fig. 25—Arrows on piston crowns point to Fig. 27—Tighten crankcase stud nuts inexhaust side and slant outward towards end sequence shown,

of engine.

Fig. 24—View of Kioritz Liquid Cooledengine as used by John Deere.

Fig. 26—Bearing retaining half-washers are Fig. 28—Compress piston rings with fingerslocated in top crankcase half as indicated by and gently lower cylinder hesd over both

arrows. pistons as shown.

331

Kioritz ENGiNES

center hole in guard over shaft toprevent contact.

With crankcase assembled, repositionwith cylinder studs uppermost. Warmthe pistons and reinstall with exhaustport locating arrows angling outwardand away from reed valve opening.Install new base gasket and withcylinders and pistons well lubricated,compress rings with fingers as shownin Fig. 28 and install cylinder overboth pistons as shown. Install cylinderhead gasket dry, then install cylinderhead, thermostat, top cover gasket andtop cover. Tighten cylinder head studnuts and cap screws in sequence shownin Fig. 29 and to the following torques:Stud nuts (1 through 8) 21-23 ft.-lbs.(2.9-3.2 kg-m); capscrews to cylinderblock (9 through 15) 14-16 ft.-lbs.(1.9-2.2 kg-m); top tank to cylinderhead (16 through 19) 13-14 ft.-lbs.(1.8-1.9 kg-m).

Use new gaskets and install reedvalve assembly. Install flywheel hous-ing (F—Fig. 30) and starter cup (A)along with coolant pump lower pulley.

Fig. 29—Cylinder haad tightaning saquanca.Tightan crankcase stud nuts (T through 8) to21-23 ft.-ibs. {2.9-3.2 kg-m); haad capscrews {9 through 15) to 14-16 ft.-lbs.,(1.9-2.2 kg-m} and top tank to haad nuts (16

through 19) to 13-14 ft.-lbs. {1.8-1.9 kg-m).

Be sure "0" ring is in place, theninstall coolant pump (D) leaving mount-ing screws loose. Install coolant pumpbelt and pump pulley (B), tighteningpulley mounting screws securely. Installbleed hose (C) and pump to cylinderhose (E). Adjust coolant pump belttension by moving pump upward inslotted holes until deflection is 3/8 inch(9 mm) when measured midway be-tween pulleys as shown in Fig. 31.Complete the assembly by reversingdisassembly procedure.

PISTONS, PINS, RINGS AND CYL-INDERS. Piston pin should be a tightfit in piston bore at room temperatureand needle bearing should not haveperceptible clearance between pistonpin and connecting rod bore.

Fig. 31 —Coolant pump bait shouid hava 3/8inch {9 mm) daflaction midway batwaan

putiays as shown.

Fig. 30—Viaw of partially assambiad angina.

A. Starter cup D. Coolant pumpB. Pump pulley E. Coolant noseC. Bleed hose F. Flywheel housing

Piston rings are pinned in place. Toprings are semi-keystone type. Recom-mended piston ring end gap is 0.012-0.016 inch (0.3-0.4 mm). Recommendedpiston clearance in cylinder is 0.0056-0.007, with a wear limit of 0.008.

CONNECTING RODS, CRANK-SHAFT AND BEARINGS. The crankshaft and connecting rods, includingcenter main bearings and seals, areonly available as an assembly. Measureside shake of connecting rod at smallend after removing cylinders andpistons. If side shake exceeds 3.0 mm(1/8 inch) install a new or rebuiltcrankshaft assembly. Outer end bear-ings can be renewed if care is used inremoval and installation to keep fromdamaging shaft in any of its built-upjoints. Support shaft on "V" blocks atouter bearings, and measure runout atends of shaft using a dial indicator. Ifrunout exceeds 0.002 inch (0.05 mm),renew or straighten shaft.

REED VALVE UNITS. Refer to Fig.32 for a removed view of reed valveunit. Inset shows an exploded view.Valve leaf is of stainless spring steeland seating surface of reed plate has abonded plastic coating. One shim mustbe installed underneath valve leaf toproperly position the leaf. Reed stop iscarefully arched for best performanceand should not be reformed. Do notattempt to straighten a bent ordamaged reed or bend the stop in anattempt to alter performance. Renewreed or reed stop if damaged in anyway and reed plate if seating surfacecoating is damaged. Tighten reed plateretaining screws evenly and securely to

Fig. 32—Ramovad viaw of raad valve assam-bly. Explodad viaw is shown in insat.

Fig. 33—Installed view of angina. Cooiingsystam fillar cap is shown at {F}. Blaad plug(0) should ba temporarily ramovad for fillingor draining the system. Drain plug is at frontlower corner of block on pto side as shown

at (O).

332

ENGiNES Kioritz

slightly compress plastic coating be- speed. bleed screw should be removed when-neath the shim. Coolant reservoir is carried on cylin- ever filling or draining cooling system.

der head and the pressure filling cap is When filling the system use a 50/50COOLING SYSTEM. The liquid cool- at (F—Fig. 33). A cylinder head bleed mixture ethylene glycol antifreeze and

ing system is pressurized to 15 psi and screw is at (B) and a cylinder block water. Pour the solution slowly intothermostatically controlled at 144°F drain plug is located on lower front filler cap until it flows out bleed plug(61 °C). The centrifugal coolant pump corner of cylinder block on drive side port. Reinstall bleed plug and continuedelivers 12 gpm at 7200 rpm engine as shown at (D). The cylinder head filling reservoir.

333