Albero motore 998 ccm A-plus Serie

with casting 12A595 resp. 12A1451 - reconditioned, in exchange. Supplied with bearings

upto engine 99H/791P/Z431856 to 558937 99H/997P/100101 to 127422 99H/998P/100101 to 102799 99H/792P/Z 99H/A97P/A53P/A94P/100101

engine 99H/791P/558938 99H/997P/127423 99H/998P/102800 99H/A97P, /A53P, /A94P/100101 on

Standard

approx.upto 1984

locating lip at edge of both halves

+ 0.010"

approx upto 1984

locating lip at edge of both halves

+ 0.020"

approx upto 1984

locating lip at edge of both halves

+ 0.030"

approx upto 1984

locating lip at edge of both halves

+ 0.040"

approx upto 1984

locating lip at edge of both halves

+ 0.060"

approx upto 1984

locating lip at edge of both halves

Standard

approx 1984 on

upper half smooth, centre location lip, lower half with groove and oil hole, location lip on edge

+ 0.010"

approx 1984 on

upper half smooth, centre location lip, lower half with groove and oil hole, location lip on edge

+ 0.020"

approx 1984 on

upper half smooth, centre location lip, lower half with groove and oil hole, location lip on edge

+ 0.030"

approx 1984 on

upper half smooth, centre location lip, lower half with groove and oil hole, location lip on edge

+ 0.040"

approx 1984 on

upper half smooth, centre location lip, lower half with groove and oil hole, location lip on edge

upper, red

Engine 99H/D81/105361 99H/E20/111592 99H/E21/102215 99H/E22/104631 99H/F15/, F16/, F32/, G30/, G31/, G32/, G33/, G34/, G39/ on

approx 1989 on, colour coded bearing caps The 998 cc A-plus series engines was equiped with colour coding main bearings from approx 1989 on. This bearings was not a set, the halfs was colour coded, matching to the engines colour coding by a special overview. No oversize was used, cause it was OEM. If your engine needs overhauling, in most cases oversize is neccessary and a grounddrilling is recomended, so use the main bearing kits recommended from approx 1984 on (lower half smooth with center location lip, upper half with groove and oilhole).

lower, red

Engine 99H/D81/105361 99H/E20/111592 99H/E21/102215 99H/E22/104631 99H/F15/, F16/, F32/, G30/, G31/, G32/, G33/, G34/, G39/ on

approx 1989 on, colour coded bearing caps The 998 cc A-plus series engines was equiped with colour coding main bearings from approx 1989 on. This bearings was not a set, the halfs was colour coded, matching to the engines colour coding by a special overview. No oversize was used, cause it was OEM. If your engine needs overhauling, in most cases oversize is neccessary and a grounddrilling is recomended, so use the main bearing kits recommended from approx 1984 on (lower half smooth with center location lip, upper half with groove and oilhole).

upper, green

Engine 99H/D81/105361 99H/E20/111592 99H/E21/102215 99H/E22/104631 99H/F15/, F16/, F32/, G30/, G31/, G32/, G33/, G34/, G39/ on

approx 1989 on, colour coded bearing caps The 998 cc A-plus series engines was equiped with colour coding main bearings from approx 1989 on. This bearings was not a set, the halfs was colour coded, matching to the engines colour coding by a special overview. No oversize was used, cause it was OEM. If your engine needs overhauling, in most cases oversize is neccessary and a grounddrilling is recomended, so use the main bearing kits recommended from approx 1984 on (lower half smooth with center location lip, upper half with groove and oilhole).

lower, green

Engine 99H/D81/105361 99H/E20/111592 99H/E21/102215 99H/E22/104631 99H/F15/, F16/, F32/, G30/, G31/, G32/, G33/, G34/, G39/ on

approx 1989 on, colour coded bearing caps The 998 cc A-plus series engines was equiped with colour coding main bearings from approx 1989 on. This bearings was not a set, the halfs was colour coded, matching to the engines colour coding by a special overview. No oversize was used, cause it was OEM. If your engine needs overhauling, in most cases oversize is neccessary and a grounddrilling is recomended, so use the main bearing kits recommended from approx 1984 on (lower half smooth with center location lip, upper half with groove and oilhole).

lower, yellow

Engine 99H/D81/105361 99H/E20/111592 99H/E21/102215 99H/E22/104631 99H/F15/, F16/, F32/, G30/, G31/, G32/, G33/, G34/, G39/ on

approx 1989 on, colour coded bearing caps The 998 cc A-plus series engines was equiped with colour coding main bearings from approx 1989 on. This bearings was not a set, the halfs was colour coded, matching to the engines colour coding by a special overview. No oversize was used, cause it was OEM. If your engine needs overhauling, in most cases oversize is neccessary and a grounddrilling is recomended, so use the main bearing kits recommended from approx 1984 on (lower half smooth with center location lip, upper half with groove and oilhole).

standard

+0.003"

+0.005"

for 2nd and 4th cylinder - identified by floating gudgeon pin

to 1988 (to engine no.'s: 99H/B83P/102908, 99H/B84P/100216, 99H/B81P/127431, 99H/B82P/103735 and 99H/C20P/105023)

for 1st and 3rd cylinder - identified by floating gudgeon pin

to 1988 (to engine no.'s: 99H/B83P/102908, 99H/B84P/100216, 99H/B81P/127431, 99H/B82P/103735 and 99H/C20P/105023)

approx up to 1981

use only with lock tab 8617

for cylinder 2 & 4

up to engine 99H/B83P/102909, 99H/B84P/100217, 99H/B81P/127432, 99H/B82P/103736 (intermittently), 99H/C20P/105024, 99H/D83P, /D80P, /D81P, /D82P/100101, 99H/E20-22, /F15-16, /F32, /G30-34, /G39

approx 1989 on, press fit gudgeon pin

for cylinder 1 & 3

up to engine 99H/B83P/102909, 99H/B84P/100217, 99H/B81P/127432, 99H/B82P/103736 (intermittently), 99H/C20P/105024, 99H/D83P, /D80P, /D81P, /D82P/100101, 99H/E20-22, /F15-16, /F32, /G30-34, /G39

approx 1989 on, press fit gudgeon pin

standard size - standard steel-backed aluminium alloy type. Feature: upper and lower half with groove and oil hole

+0.010" - standard steel-backed aluminium alloy type. Feature: upper and lower half with groove and oil hole

+0.020" - standard steel-backed aluminium alloy type. Feature: upper and lower half with groove and oil hole

+0.030" - standard steel-backed aluminium alloy type. Feature: upper and lower half with groove and oil hole

+0.040" - standard steel-backed aluminium alloy type. Feature: upper and lower half with groove and oil hole

+0.060" - standard steel-backed aluminium alloy type. Feature: upper and lower half with groove and oil hole

29 teeth

for primary gear - mounted on flywheel side

primary gear to 'C' type clip

'C' type

0.110" - 0.112"

quantity as required

0.112" - 0.114"

quantity as required

0.114" - 0.116"

quantity as required

0.116" - 0.118"

quantity as required

length: 39.59 mm

alternatives

tuftride hardened - length: 39.59 mm

alternatives

with 214 mm length

camshaft

engine front plate

engine plate to main bearing cap

3/4" x 5/16" UNF

for tensioner pad

3/4" x 5/16" UNF

for tensioner mounting

for tensioner mounting

timing cover

timing cover

single row

single row

uprated single row endless chain with 52 pitches

single row

crankshaft sprocket

camshaft

timing cover to engine plate

3/4" x 5/16" UNF

Standard, 4 rings, dished, CR 8.3:1

engine 99H/791P/445058 intermittently to 560526, 99H/792P/035613 intermittently on

1980 on upto introduction 3-ring pistons

+ 0,030", 4 rings, dished, CR 8.3:1

engine 99H/791P/445058 intermittently to 560526, 99H/792P/035613 intermittently on

1980 on upto introduction 3-ring pistons

+ 0,040", 4 rings, dished, CR 8.3:1

engine 99H/791P/445058 intermittently to 560526, 99H/792P/035613 intermittently on

1980 on upto introduction 3-ring pistons

+ 0,060", 4 rings, dished, CR 8.3:1

engine 99H/791P/445058 intermittently to 560526, 99H/792P/035613 intermittently on

1980 on upto introduction 3-ring pistons

motore n.: 99H791P445058 a 560526 (con interruzione), 99H792P035613 e successivi (con interruzione)

998 ccm A+ motore n.: 99H791P445058 a 560526 (con interruzione), 99H792P035613 e successivi (con interruzione)

998 ccm A+ motore n.: 99H/791P/445058 a 560526 (con interruzione), 99H/792P/035613 e successivi (con interruzione)

motore n.: 99H/791P/445058 a 560526 (con interruzione), 99H/792P/035613 e successivi (con interruzione)

motore n.: 99H/791P/445058 a 560526 (con interruzione), 99H/792P/035613 e successivi (con interruzione)

Standard, 4 rings, flat, CR 10.3:1

engine 99H/997P/101 to 162657, 99H/998P/101 to 105032

1980 on upto introduction 3-ring pistons

+ 0.020", 4 rings, flat, CR 10.3:1

engine 99H/997P/101 to 162657, 99H/998P/101 to 105032

1980 on upto introduction 3-ring pistons

+ 0.030", 4 rings, flat, CR 10.3:1

engine 99H/997P/101 to 162657, 99H/998P/101 to 105032

1980 on upto introduction 3-ring pistons

+ 0.040", 4 rings, flat, CR 10.3:1

engine 99H/997P/101 to 162657, 99H/998P/101 to 105032

1980 on upto introduction 3-ring pistons

+ 0.060", 4 rings, flat, CR 10.3:1

engine 99H/997P/101 to 162657, 99H/998P/101 to 105032

1980 on upto introduction 3-ring pistons

standard, for 4 ring piston, Compression rings = 0.0625", oil ring = 0.1575"

1980 on upto introduction 3-ring pistons

+ 0.020", for 4 ring piston, Compression rings = 0.0625", oil ring = 0.1575"

1980 on upto introduction 3-ring pistons

+ 0.030", for 4 ring piston, Compression rings = 0.0625", oil ring = 0.1575"

1980 on upto introduction 3-ring pistons

+ 0.040", for 4 ring piston, Compression rings = 0.0625", oil ring = 0.1575"

1980 on upto introduction 3-ring pistons

+ 0.060", for 4 ring piston, Compression rings = 0.0625", oil ring = 0.1575"

1980 on upto introduction 3-ring pistons

Standard, 3 rings, dished, CR 8.3:1

engine 99H/791P/560527 on, 99H/A97P/100101 on, 99H/B83P/100101 to 102908, 99H/B84P/100101 to 100216

approx 1985 on up to introduction press fit gudgeon pin

Standard, 3 rings, dished, CR 8.3:1

engine 99H/791P/560527 on, 99H/A97P/100101 on, 99H/B83P/100101 to 102908, 99H/B84P/100101 to 100216

approx 1985 on up to introduction press fit gudgeon pin

+ 0.020", 3 rings, dished, CR 8.3:1

engine 99H/791P/560527 on, 99H/A97P/100101 on, 99H/B83P/100101 to 102908, 99H/B84P/100101 to 100216

approx 1985 on up to introduction press fit gudgeon pin

Standard, 3 rings, flat, CR 10.3:1

engine 99H/791P/560527 on, 99H/A97P/100101 on, 99H/B83P/100101 to 102908, 99H/B84P/100101 to 100216

approx 1985 on up to introduction press fit gudgeon pin

+ 0.020", 3 rings, flat, CR 10.3:1

engine 99H/791P/560527 on, 99H/A97P/100101 on, 99H/B83P/100101 to 102908, 99H/B84P/100101 to 100216

approx 1985 on up to introduction press fit gudgeon pin

Standard, 3 rings, flat, CR 10.3:1

engine 99H/791P/560527 on, 99H/A97P/100101 on, 99H/B83P/100101 to 102908, 99H/B84P/100101 to 100216

approx 1985 on up to introduction press fit gudgeon pin

+ 0.020", 3 rings, flat, CR 10.3:1

engine 99H/791P/560527 on, 99H/A97P/100101 on, 99H/B83P/100101 to 102908, 99H/B84P/100101 to 100216

approx 1985 on up to introduction press fit gudgeon pin

Standard, for 3 ring piston, Compression rings = 0.0625", oil ring = 0.1575"

approx 1985 on up to introduction press fit gudgeon pin

+ 0.020", for 3 ring piston, Compression rings = 0.0625", oil ring = 0.1575"

approx 1985 on up to introduction press fit gudgeon pin

+ 0.030", for 3 ring piston, Compression rings = 0.0625", oil ring = 0.1575"

approx 1985 on up to introduction press fit gudgeon pin

+ 0.040", for 3 ring piston, Compression rings = 0.0625", oil ring = 0.1575"

approx 1985 on up to introduction press fit gudgeon pin

+ 0.060", for 3 ring piston, Compression rings = 0.0625", oil ring = 0.1575"

approx 1985 on up to introduction press fit gudgeon pin

Standard, 3 rings, dished, CR 8,3.1

Engine No. 99H/83P 102909 on, 99H/84P 100217 on, 99H/D83P 100101 on, 99H/E22, 99H/G31

approx 1989 on, press fit gudgeon pin

Motore n. 99H/83P 102909>, 99H/84P 100217>, 99H/D83P 100101>, 99H/E22, 99H/G31

Motore n. 99H/83P 102909>, 99H/84P 100217>, 99H/D83P 100101>, 99H/E22, 99H/G31

Motore n. 99H/83P 102909>, 99H/84P 100217>, 99H/D83P 100101>, 99H/E22, 99H/G31

Standard, 3 rings, flat, CR 10,3.1

engine 99H/B81P/127432 on 99H/B82P/103891 on (intermittently 103736>103890) 99H/C20P/105024 on 99H/D80P/100101 on 99H/D81P/100101 on 99H/D82P/100101 on 99H/E20, /E21, /F15, /F16, /F32, /G30, /G32, /G33, /G34, /G39

approx 1989 on, press fit gudgeon pin

+ 0.040", 3 rings, flat, CR 10,3.1

engine 99H/B81P/127432 on 99H/B82P/103891 on (intermittently 103736>103890) 99H/C20P/105024 on 99H/D80P/100101 on 99H/D81P/100101 on 99H/D82P/100101 on 99H/E20, /E21, /F15, /F16, /F32, /G30, /G32, /G33, /G34, /G39

approx 1989 on, press fit gudgeon pin

Standard, 3 rings, flat, CR 10,3.1

engine 99H/B81P/127432 on 99H/B82P/103891 on (intermittently 103736>103890) 99H/C20P/105024 on 99H/D80P/100101 on 99H/D81P/100101 on 99H/D82P/100101 on 99H/E20, /E21, /F15, /F16, /F32, /G30, /G32, /G33, /G34, /G39

approx 1989 on, press fit gudgeon pin

+ 0.020", 3 rings, flat, CR 10,3.1

engine 99H/B81P/127432 on 99H/B82P/103891 on (intermittently 103736>103890) 99H/C20P/105024 on 99H/D80P/100101 on 99H/D81P/100101 on 99H/D82P/100101 on 99H/E20, /E21, /F15, /F16, /F32, /G30, /G32, /G33, /G34, /G39

approx 1989 on, press fit gudgeon pin

+ 0.030", 3 rings, flat, CR 10,3.1

engine 99H/B81P/127432 on 99H/B82P/103891 on (intermittently 103736>103890) 99H/C20P/105024 on 99H/D80P/100101 on 99H/D81P/100101 on 99H/D82P/100101 on 99H/E20, /E21, /F15, /F16, /F32, /G30, /G32, /G33, /G34, /G39

approx 1989 on, press fit gudgeon pin

+ 0.040", 3 rings, flat, CR 10,3.1

engine 99H/B81P/127432 on 99H/B82P/103891 on (intermittently 103736>103890) 99H/C20P/105024 on 99H/D80P/100101 on 99H/D81P/100101 on 99H/D82P/100101 on 99H/E20, /E21, /F15, /F16, /F32, /G30, /G32, /G33, /G34, /G39

approx 1989 on, press fit gudgeon pin

+ 0.060", 3 rings, flat, CR 10,3.1

engine 99H/B81P/127432 on 99H/B82P/103891 on (intermittently 103736>103890) 99H/C20P/105024 on 99H/D80P/100101 on 99H/D81P/100101 on 99H/D82P/100101 on 99H/E20, /E21, /F15, /F16, /F32, /G30, /G32, /G33, /G34, /G39

approx 1989 on, press fit gudgeon pin

standard, for 3 ring piston, Compression rings = 0.059", oil ring = 0.1181"

approx 1989 on, press fit gudgeon pin

+ 0.020", for 3 ring piston, Compression rings = 0.059", oil ring = 0.1181"

approx 1989 on, press fit gudgeon pin

+ 0.040", for 3 ring piston, Compression rings = 0.059", oil ring = 0.1181"

approx 1989 on, press fit gudgeon pin

approx. to 1985

approx. to 1985

approx. 1985 on

approx. 1985 on

crankshaft

hole 0.6875"

pulley to crank

thread length 0.75"

recommended for fitting camshafts and auxiliary shafts