allen key size for trimtab 74 alpha one

Joined
May 13, 2009
Messages
8
i was wondering if anyone knows the allen key size for the trimtab removal on a 74 mercruiser apha one outdrive
 

Evinrude Boater

Lieutenant Junior Grade
Joined
Jul 6, 2004
Messages
1,144
Re: allen key size for trimtab 74 alpha one

Depends if the bolt is rusted. It's hard to get the proper size allen wrench in the hole with corrosion. You might have to scrape the inside of the hole to get the wrench in. Try a selection of sizes from small to big and use the first one that you have trouble inserting. That's probably the right size.
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: allen key size for trimtab 74 alpha one

3/8" is the normal size.
 
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