Subaru Robin Power Products EY15V 0.05, 0.10*0.02, 0.25, Engine Model, Standard Size, Correction

ITEM

EY15lengthFree

Squareness

Valve stemO.D.

Clearance between stem and guide

I

ENGINE MODEL

1 EY20

I::E:

STANDARD

SIZE

37

Intake

Exhaust 6.5 dia'

Intake 6.5 dia. Exhaust

Intake

Exhaust

Intake

Exhaust

t	CORRECTION		1		I
	TOLERANCE	L I M I T		L I M I T
				USE
		-1.5			1
				'.'
	-0.025-4.040
	-0.056--0.078	-0.15
	-0.025--0.040
	-0.056--0.078
	0.025 - 0.062
	0.056 - 0.100	0.3		0.3

REMARKS

For total length

At middle

1

I

TOOL

Vernier calipers

Micro- meter

Cylinder

1'>ORRECTIOh I

METHOD

Replace

Replace

Replace

Replace

Tappet clearance I EY20 EY15

Stem end length

		E Y20
Total length
Clearance between	I	EY15
stem and guide		EY20
Spark plug	1	EY 15
		E Y 2 0

Intake5.9

Exhaust 5.9

Intake 6.2

Exhaust6.4

35.6

41.7

NGK BM4A

	When cold	below
		0.05
	0.10*0.02	above
		0.25
	0.1 - 0.3	0.5
		-1 .o	-1 .o
	+0.06 - 0	- 0 . 5	- 0.5
~~~	~
0.013 - 0.037		0.2	0.2

Vernier calipers

Vernier calipers

Correct

Replace

Replace

Replace

Spark gap	1	EY15
		EY20
Spark timing	1	EY15
		EY20
Pointopening	I	:;E:

	0.6 -0.7	1
23"before T.D.C.	f 2"	f 5"
	~
0.35	f 0.05	5 0.1

Timing tester

Contact breaker

Adjust or replace

Adjust

Adjust

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