Rato RV160 Manuel Du Propriétaire page 28

TROUBLESHOOTING
5....Gasoline...Engine...Is...Overheat
TROUBLE CAUSE
Oil...insufficient...or...wrong...oil...ratio...in...
the...gasoline
Exhaust...pipe...blocked...up
Shroud...leaking
Cooling... fins... blocked... by... foreign...
matter
Gasoline...
Connection...rod...deformation...to...make...
engine... is...
piston...and...cylinder...bushing...side...wear
overheat...
Cylinder...or...piston...or...piston...ring...is...
worn...to...make...hunting...between...cyl-
inder...and...crankcase
Improper...adjustment...of...engine...gov-
ernor...to...produce...speed...high.
Crankshaft...main...bearing...burnt...out
The gasoline engine should be kept about 80 ~ 110 ℃ temperature
around the outlet of the shroud. If the temperature is too high, it will
indicate the gasoline engine overheating.
6....Abnormal...Noise...Exist...When...Engine...Running
TROUBLE
Beating...sound
Metal ... b eatin g...
sound... when... ab-
normal...combus-
tion...occurs
The...other
· ...25... · ...
CAUSE
Piston,...piston...ring...or...cylinder...is...worn
Connection...rod...or...piston...pin...and...piston...
pin...hole...are...worn
Crankshaft...main...neck...is...worn
Piston...ring...is...broken
Too...much...carbon...deposit...in...combust-
ing...chamber
Improper...fuel...brand
Engine...is...overheat
Improper...valve...clearance
Fly...wheel...is...not...connected...with...crank-
shaft...tightly
REMEDY
Refill...engine...oil
Clean...exhaust...pipe
Repair...damaged...part
Clear...cooling...fins
Replace...connection...rod
Replace...the...worn...parts
Readjust...engine...governor
Replace...main...bearing
REMEDY
Replace...the...worn...part
Replace... the... worn...
part
Replace...bearing
Replace...piston...ring
Clear... away... carbon...
deposit
Replace...fuel
Find... a... cause... and...
eliminate...it
R e a d j u s t ... v a l v e...
clearance...properly
Connect...tightly