Radiator Cap Test - Honda EP3 Service Manual

Radiator Cap Test
1. Remove the radiator cap {A), wet its seal with
engine coolant, then install it on the pressure tester
( B ) ( c o m m e r c i a l l y a v a i l a b l e ) .
Apply a pressure of 93
'123
kPa {0.95 1.25
kgf/cm', l4
18 psi).
Check for a drop in pressure.
lf the pressure drops, replace the cap.
3 .
4 .
Radiator Test
Wait untilthe engine is cool, then carefully remove
the radiator cap and fill the radiator with engine
coolant to the top of the filler neck.
Attach the pressure tester (A) (commercially
a v a i l a b l e ) t o t h e r a d i a t o r .
1 .
3 .
4 .
Apply a pressure ot 93 '123 kPa (0.95 1 .25
kgf/cm',
'14
18 psi).
I n s p e c t f o r e n g i n e c o o l a n t l e a k s a n d a d r o p i n
pressu re.
Remove the tester, and reinstall the radiator cap.
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