ar0310g702103dd

Assign piston to the cylinder bore

Type ar · emne 03.10 · version 0200 · 2019-09-02

Gælder for: Engine 900.91/92 in model 000.001 Engine 902.91/93 in model 000.001 Engine 904.94/95/96/97 in model 000.001 Engine 906.90/93/94/95/96/98/99 in model 000.001 Engine 924.91/93/94 in model 000.001 Engine 925.9 in model 000.001 Engine 926.91/92/93/95/97/98 in model 000.001

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Placering

Funktionsgruppe 1 Motor › 03 Drivværk › 03.10 Plejlstænger, stempler — Serie 000 (modeller 001) · Serie 900 (modeller 91*, 92*) · Serie 902 (modeller 91*, 93*) · Serie 904 (modeller 94*, 95*, 96*, 97*) · Serie 906 (modeller 90*, 93*, 94*, 95*, 96*, 98*, 99*)

EinPAS 15 Motor › 15.15 forbrændingsmotor komplet/motorblok/krumtapdrev › 15.15.40 Plejlstang/stempel — Serie 000 (modeller 001) · Serie 900 (modeller 91*, 92*) · Serie 902 (modeller 91*, 93*) · Serie 904 (modeller 94*, 95*, 96*, 97*) · Serie 906 (modeller 90*, 93*, 94*, 95*, 96*, 98*, 99*)

Gælder også for motorer/gearkasser: 924 91*, 924 93*, 924 94*, 925 9**, 926 91*, 926 92*, 926 93*, 926 95*, 926 97*, 926 98*

AR03.10-G-7021-03DD	Assign piston to the cylinder bore
	Piston and piston rings changed	Engine 924.9 as of engine end number 810731, 926.9 as of engine end number 811140	BT03.10-W-0002-01A

Engine	900.91/92 in model 000.001
Engine	902.91/93 in model 000.001
Engine	904.94/95/96/97 in model 000.001
Engine	906.90/93/94/95/96/98/99 in model 000.001
Engine	924.91/93/94 in model 000.001
Engine	925.9 in model 000.001
Engine	926.91/92/93/95/97/98 in model 000.001

Modification notes

15.07.2019

Contents completely revised.

Check values for cylinder crankcase

Number	Designation			Engine 900.9## ## up to 185258, 902.9## ## up to 185258 in model 000.001	Engine 900.9## ## as of 185259, 902.9## ## as of 185259 in model 000.001
BE01.40-N-1006-02J	Height of crankcase, measured from seat of main bearing shell to cylinder head contact surface	Default	mm	298,33...298,40	298,33...298,40
		Deviation –0.3	mm	298,03...298,10	298,03...298,10
		Deviation –0.6	mm	297,73...297,80	297,73...297,80
		Deviation –0.9	mm	297,43...297,50	297,43...297,50

Check values for cylinder crankcase

Number	Designation			Engine 904.9## ## up to 185258, 906.9## (except 906.90) ## up to 185258 in model 000.001	Engine 904.9## ## as of 185259, 906.9## (except 906.90) ## as of 185259 in model 000.001
BE01.40-N-1006-02J	Height of crankcase, measured from seat of main bearing shell to cylinder head contact surface	Default	mm	298,33...298,40	298,33...298,40
		Deviation –0.3	mm	298,03...298,10	298,03...298,10
		Deviation –0.6	mm	297,73...297,80	297,73...297,80
		Deviation –0.9	mm	297,43...297,50	297,43...297,50

Check values for cylinder crankcase

Number	Designation			Engine 906.90# ## up to 185258 in model 000.001	Engine 906.90# ## as of 185259 in model 000.001
BE01.40-N-1006-02J	Height of crankcase, measured from seat of main bearing shell to cylinder head contact surface	Default	mm	298,33...298,40	298,33...298,40
		Deviation –0.3	mm	298,03...298,10	298,03...298,10
		Deviation –0.6	mm	297,73...297,80	297,73...297,80
		Deviation –0.9	mm	–	–

Check values for cylinder crankcase

Number	Designation			Engine 924.9## ## up to 185258, 926.9## ## up to 185258 in model 000.001	ENGINE 924.9## ## as of 185259, 926.9## ## as of 185259
BE01.40-N-1006-02J	Height of crankcase, measured from seat of main bearing shell to cylinder head contact surface	Default	mm	298,33...298,40	298,33...298,40
		Deviation –0.3	mm	298,03...298,10	298,03...298,10
		Deviation –0.6	mm	297,73...297,80	297,73...297,80
		Deviation –0.9	mm	297,43...297,50	297,43...297,50

Check values for cylinder crankcase

Number	Designation			Engine 925.9 in model 000.001
BE01.40-N-1006-02J	Height of crankcase, measured from seat of main bearing shell to cylinder head contact surface	Default	mm	298,33...298,40
		Deviation –0.3	mm	298,03...298,10
		Deviation –0.6	mm	297,73...297,80
		Deviation –0.9	mm	297,43...297,50

Test specifications for pistons

Number	Designation				Engine 900.9, 902.9	ENGINE 904.9## ## up to 119308, 906.9## (except 906.901/902) ## up to 119308
BE03.10-N-1001-02J	Piston dia.	Group identification.	BA	mm	101,781...101,790	101,781...101,790
			BC	mm	101,790...101,799	101,790...101,799

Test specifications for pistons

Number	Designation				ENGINE 904.9## ## as of 119309, 906.9## (except 906.901/902) ## as of 119309	ENGINE 906.901/902
BE03.10-N-1001-02J	Piston dia.	Group identification.	BA	mm	101,781...101,790	105,781...105,790
			BC	mm	101,790...101,799	105,790...105,799

Test specifications for pistons

Number	Designation				Engine 924.9, 925.9, 926.9 in model 000.001 except Euromot 3B	Engine 924.9, 925.9, 926.9 in model 000.001 with Euromot 3B
BE03.10-N-1001-02J	Piston dia.	Group identification.	BA	mm	105,761...105,770	105,741...105,750
			BC	mm	105,770...105,779	105,750...105,759

Test specifications for pistons

Number	Designation				Engine 900.9, 902.9	ENGINE 904.9## ## up to 119308, 906.9## (except 906.901/902) ## up to 119308
BE03.10-N-1002-02J	Piston compression height	Default	102 BA	mm	64,36...64,40	64,36...64,40
			102 BC	mm	64,36...64,40	64,36...64,40
			106 BA	mm	–	–
			106 BC	mm	–	–

Test specifications for pistons

Number	Designation				ENGINE 904.9## ## as of 119309, 906.9## (except 906.901/902) ## as of 119309	ENGINE 906.901/902
BE03.10-N-1002-02J	Piston compression height	Default	102 BA	mm	64,36...64,40	–
			102 BC	mm	64,36...64,40	–
			106 BA	mm	–	64,36...64,40
			106 BC	mm	–	64,36...64,40

Test specifications for pistons

Number	Designation				Engine 924.9, 925.9, 926.9 in model 000.001 except Euromot 3B	Engine 924.9, 925.9, 926.9 in model 000.001 with Euromot 3B
BE03.10-N-1002-02J	Piston compression height	Default	102 BA	mm	–	–
			102 BC	mm	–	–
			106 BA	mm	61,36...61,40	61,36...61,40
			106 BC	mm	61,36...61,40	61,36...61,40

Test specifications for pistons

Number	Designation				Engine 900.9, 902.9	ENGINE 904.9## ## up to 119308, 906.9## (except 906.901/902) ## up to 119308
BE03.10-N-1006-02J	Piston Ø and piston compression height	Piston Ø Default	Default 0	mm	64,36...64,40	64,36...64,40
			Deviation –0.3	mm	64,06...64,10	64,06...64,10
			Deviation –0.6	mm	63,76...63,80	63,76...63,80
			Deviation –0.9	mm	63,46...63,50	63,46...63,50
		Compression height 102.0 Default Ø 0	102.0 BA	mm	101,781...101,790	101,781...101,790
			102.0 BC	mm	101,790...101.799	101,790...101.799
		Compression height 102.0 Deviation Ø -0.3	102.3 BA	mm	102,081...102,090	102,081...102,090
			102.3 BC	mm	102,090...102,099	102,090...102,099
		Compression height 102.0 Deviation Ø -0.6	102.6 BA	mm	102,381...102,390	102,381...102,390
			102.6 BC	mm	102,390...102,399	102,390...102,399
		Compression height 102.0 Deviation Ø -0.9	102.9 BA	mm	102,681...102,690	102,681...102,690
			102.9 BC	mm	102,690...102,699	102,690...102,699
		Compression height 106.0 Default Ø 0	106.0 BA	mm	–	–
			106.0 BC	mm	–	–
		Compression height 106.0 Deviation Ø -0.3	106.3 BA	mm	–	–
			106.3 BC	mm	–	–
		Compression height 106.0 Deviation Ø -0.6	106.6 BA	mm	–	–
			106.6 BC	mm	–	–
		Compression height 106.0 Deviation Ø -0.9	106.9 BA	mm	–	–
			106.9 BC	mm	–	–

Test specifications for pistons

Number	Designation				ENGINE 904.9## ## as of 119309, 906.9## (except 906.901/902) ## as of 119309	ENGINE 906.901/902
BE03.10-N-1006-02J	Piston Ø and piston compression height	Piston Ø Default	Default 0	mm	64,36...64,40	64,36...64,40
			Deviation –0.3	mm	64,06...64,10	64,06...64,10
			Deviation –0.6	mm	63,76...63,80	63,76...63,80
			Deviation –0.9	mm	63,46...63,50	–
		Compression height 102.0 Default Ø 0	102.0 BA	mm	101,781...101,790	–
			102.0 BC	mm	101,790...101.799	–
		Compression height 102.0 Deviation Ø -0.3	102.3 BA	mm	102,081...102,090
			102.3 BC	mm	102,090...102,099	–
		Compression height 102.0 Deviation Ø -0.6	102.6 BA	mm	102,381...102,390	–
			102.6 BC	mm	102,390...102,399	–
		Compression height 102.0 Deviation Ø -0.9	102.9 BA	mm	102,681...102,690	–
			102.9 BC	mm	102,690...102,699	–
		Compression height 106.0 Default Ø 0	106.0 BA	mm	–	105,781...105,790
			106.0 BC	mm	–	105,790...105,799
		Compression height 106.0 Deviation Ø -0.3	106.3 BA	mm	–	106,281...106,290
			106.3 BC	mm	–	106,290...106,299
		Compression height 106.0 Deviation Ø -0.6	106.6 BA	mm	–	106,781...106,790
			106.6 BC	mm	–	106,790...106,799
		Compression height 106.0 Deviation Ø -0.9	106.9 BA	mm	–	–
			106.9 BC	mm	–	–

Test specifications for pistons

Number	Designation				Engine 924.9, 925.9, 926.9 in model 000.001 except Euromot 3B	Engine 924.9, 925.9, 926.9 in model 000.001 with Euromot 3B
BE03.10-N-1006-02J	Piston Ø and piston compression height	Piston Ø Default	Default 0	mm	61,36...61,40	61,36...61,40
			Deviation –0.3	mm	61,06...61,10	61,06...61,10
			Deviation –0.6	mm	60,76...60,80	60,76...60,80
			Deviation –0.9	mm	60,46...60,50	60,46...60,50
		Compression height 102.0 Default Ø 0	102.0 BA	mm	–	–
			102.0 BC	mm	–	–
		Compression height 102.0 Deviation Ø -0.3	102.3 BA	mm	–	–
			102.3 BC	mm	–	–
		Compression height 102.0 Deviation Ø -0.6	102.6 BA	mm	–	–
			102.6 BC	mm	–	–
		Compression height 102.0 Deviation Ø -0.9	102.9 BA	mm	–	–
			102.9 BC	mm	–	–
		Compression height 106.0 Default Ø 0	106.0 BA	mm	105,761...105,770	105,741...105,750
			106.0 BC	mm	105,770...105,779	105,750...105,759
		Compression height 106.0 Deviation Ø -0.3	106.3 BA	mm	106,061...106,070	106,041...106,050
			106.3 BC	mm	106,070...106,079	106,050...106,059
		Compression height 106.0 Deviation Ø -0.6	106.6 BA	mm	106,361...106,370	106,341...106,350
			106.6 BC	mm	106,370...106,379	106,350...106,359
		Compression height 106.0 Deviation Ø -0.9	106.9 BA	mm	106,661...106,670	106,641...106,650
			106.9 BC	mm	106,670...106,679	106,650...106,659

Assign piston to the cylinder bore

W03.10-1116-09

Tolerance group identification on piston

Assign piston (1) with corresponding piston diameter (C) and compression height (KH) of the corresponding cylinder bore diameter (B) and crankcase housing height (A). Observe marking on the signature areas (arrows) on the crankcase (2).

Piston diameter  cylinder bore diameter

BA  A or B

BC  B or C

 At the next largest oversize of the piston diameter (C) or of the cylinder bore diameter (B), the compression height (KH) at the piston (1) and crankcase housing height (A) is reduced correspondingly.

Piston diameter  crankcase housing height

Compression height

BA or B  standard

BA 0.3 or BC 0.3  oversize 0.3

BA 0.6 or BC 0.6  oversize 0.6

BA 0.9 or BC 0.9  oversize 0.9

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