Bsi bs au 262 2 1995 (2002) bs iso 6550 2 1994

BRITISH STANDARD AUTOMOBILE SERIES BS AU 262 2 1995 BS ISO 6550 2 1994 Incorporating Amendment No 1 Road vehicles — Sheath type glow plugs with conical seating and their cylinder head housing — Part 2[.]

BS ISO

6550- 2:1994

Incor por a ting

A mend ment No 1

ICS 4 0 0.5

This Br itsh Stan ard,ha in g

b en pre ared u d er the

directonof the Engine ring

SectorBo rd,was published

u derthe authoriy of the

Stan ard s Bo rd an comes

intoefect on

1 Decemb r1 9

© BSI 2 Decemb r 2 0

The folowing BSI r eferences

relate to the work on this

stan ard:

Commi e reference MC /9

Dr aft f c mmen t 9 /70 8 5 D

ISBN 0 5 0 2 9 2 5

The prep ration of this British Stand rd was entrusted to Tech ical

Commit e MCE/ 9, Ignition eq uipment for sp rk ig nition engines, upon which

the folowing bodies were represented:

Society of Motor Manufacturer and Trad er L td

Co pted member

Am endm ents is ued sinc publ cation

1410 20 December 20 2 Change to second ry iden tifier

Pa e

Figure 1 — M1 × 1,25 sheath-ty pe glow-plug with conical seating 2

National foreword

This British Stand r d has be n prep r ed b Tech ical Commit e MCE/9 It is

identical with ISO6 5 -2:19 4 R oad vehicle — Shea th-type glow-plugs wih

conica l s ating a nd their cylnd er hea d housing — Pa r t2: M12

× 1,2 glow-pl ugs,

publshed b the International Org nization for Stand ardization (ISO)

A British Stand ard do s not purport to include al the neces ar y provisions of a

contract U ser of British Stand rd s are responsible for their cor rect a plcation

Com pl anc with a British Standard does not of itself confer im m unity

f om leg al o lg ations

Sum m ary of pag es

This d ocument comprises a f ont cov er, an insid e fon t cover, p g es i and i ,

p g es 1 to 3 and a b ck cov er

The BSI copy rig ht notice display ed in this d ocument ind icates w hen the

document was last is ued

1 Scope

This p rt of ISO 6 5 specifies the main characteristic of M1 × 1,25 sh eath-ty e glow-plugs w ith conical

seating and their cy lind er hea housing , for use with diesel ( compres ion- gnition) engines

2 Norm ative r f r nces

The folowing stand r ds contain provisions which, thr oug h reference in this text, constitute prov isions of

this p rt of ISO6 5 At the time of publ cation, the editions indicated were v ald All stand rds are subject

to r ev ision, and p r ties to ag re ments b sed on this p rt of ISO6 5 are encoura ed to inv estig ate the

pos ibi ty of a ply ing the most r ecent edition s of the stand r ds indicated below Member of IEC and ISO

maintain reg ister of cur ently v al d International Stan dard s

ISO 27 5:19 1, Roa d vehicle — M12 × 1,2 spa r k-plugs wih fla t s ating a nd their cylnd er hea d housing

ISO 8 92-1:—, R oa d vehicle — Con e tons fr on-boa r d ele tr ic har ne s s — Pa r t 1: Single-pole con e to

tabs — D imensions a nd spe ific r equir ements

1)

3 Dim ensions a nd tolera nces

3.1 Glow-plug s

S eath-ty pe g low-plug dimensions and tolerances are giv en inFigure 1

3.2 Cyl nder hea housing

The dimensions and tolerances of the cy linder hea housing for sheath-ty e g low-plug s are given i n

Figure 2

3.3 Dim ension lm its of threa

The thread s of M1 × 1,25 g low-plug s and the cor espon ding ta ped holes in the cy linder hea shal

conform to the threa s specified for M1 ×1,25 sp rk-plugs in ISO 27 5

4 Instal a tion tig htening torque

The instalation torq ue v alues shal be as g iv en inTa le 1 The v alues a ply to new sheath-ty pe glow-plugs

without lubr ican t on the thr ea s I thr ea s are lubricated, the torq ue v alue shal be r ed uced b

a prox imately one-th ird to a oid over tres ing

Table 1 — Instalation tightening torque

1)

To b published.( Re ision of ISO 8 9 -1:1 8 )

Values in newton metres

Tightening torque

Cas iron and aluminium cylnde hea s M5 te minal thr a

a

NOT Eng ine man facturer ma sp cify diferent torques for the fir t g low-plug instalaton

a

Difering sp cificatons a ply to the admis ible tg h ten ing tor que ac ording to the n t used

Glow-plug ty e

L

1

L

2

± 1

D

1

D

2

Fig ure 1 — M12 × 1,2 sheath- type g low- plug with conical

seating

+1

0

0

–,3

0

– 0,2

B

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