grinding gears

H

Holderman

Recruit
Joined
Jun 6, 2013
Messages
3
The throttle cable and shift cable were both replaced 2 months ago on my 1976 Sea Arrow 302 888 mercruiser. When shifting into forward and reverse the gears are grinding at times. Do you think the cable should be adjusted?
 
alldodge

alldodge

Moderator
Staff member
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Mar 8, 2009
Messages
40,784
Re: grinding gears

Welcome to iboats

Depmds on what you mean by grinding. Can you explain what you mean by grinding?
 
H

Holderman

Recruit
Joined
Jun 6, 2013
Messages
3
Re: grinding gears

I am not sure how else to explain the noise besides a grinding noise. I shift forward and the gears make a loud grinding noise then engage. It does not always happen. Sometimes it will go right into gear. It is also doing it in reverse.
 
NHGuy

NHGuy

Captain
Joined
May 21, 2009
Messages
3,631
Re: grinding gears

If it will engage before the throttle takes up then click it into gear briskly. If the engine picks up speed before the gears engage readjust it.
Avoid the grinding by snapping it into gear quickly to minimize the grinding.
 
EddiePetty

EddiePetty

Lieutenant Junior Grade
Joined
Aug 25, 2008
Messages
1,008
Re: grinding gears

You're probably not shifting quick enough. Your shifts should be brisk.

If you are experiencing this 'grinding' on the muffs...tis to be expected as the shift interrupt switch will not function without a prop load.
 
H

Holderman

Recruit
Joined
Jun 6, 2013
Messages
3
Re: grinding gears

I first noticed it on the water. Today I tested it with muffs on. I am shifting briskly. I will try it out on the water this weekend. thanks guys for your help.
 
achris

achris

More fish than mountain goat
Joined
May 19, 2004
Messages
27,468
Re: grinding gears

Holderman said:
The throttle cable and shift cable were both replaced 2 months ago on my 1976 Sea Arrow 302 888 mercruiser. When shifting into forward and reverse the gears are grinding at times. Do you think the cable should be adjusted?
Click to expand...

Which shift cable? There are 2. One that runs from the remote control to the shift plate (called the 'remote shift cable'), and one that runs from the shift plate to the drive (called the 'lower shift cable')...

EddiePetty said:
You're probably not shifting quick enough. Your shifts should be brisk.
If you are experiencing this 'grinding' on the muffs...tis to be expected as the shift interrupt switch will not function without a prop load.
Click to expand...

On the muff the shift interrupt switch should not activate at all. In the water the shift interrupt switch should only ever activate when shifting OUT of gear, NEVER when going into gear....

Chris.....
 
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