I/O Mercruiser (except TRS), OMC, Volvo Penta all use the
above style starters in standard rotation. The starter will have only one set of
bolt holes; either holes 1 and 3, or holes 1 and 2. This information is provided
because many times the combination of engines, starters and flywheels have been
changed in older boats. This information will also allow you to determine the
flywheel size of your engine. This information is necessary in making repower
decisions.
Engines with bolt patterns like NOTES 1 and 3 are used in I/O
applications before 1986 (except Volvo Penta V8) with 12" flywheels.
Engines with bolt patterns like NOTES 1 and 2 are used for V8 and V6 engines
after 1985 with 14" flywheels.
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NOTE
A
Length of solenoid determines if metric.
Metric = 3 1/2"
Regular =4 1/8"
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NOTE
B
Refers to bolt mounting pattern.
Patterns using bolt holes labled NOTE 1 and NOTE 2 are considered
staggered style. Both bolts are long. This style starter is used on I/O
applications with 14" flywheels.
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Patterns using boltholes labeled NOTE 1 and NOTE 3 are
considered straight style. The bolt for NOTE 3 is short. This style is
used on I/O applications using 12" flywheels.
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If you are unsure of which starter is the right one for your application or
have additional questions, please call our Tech-Help line at
(252) 504-3355.