'79 - '80 merc 470 exhaust elbow o-ring at the transom, looking for part number....

[montejw360]

i'm replacing the exhaust elbow on my '79 merc 470 (serial number comes up '80, but boat hin is '79). i found that there's an o-ring that seals the elbow to the transom plate. i can't find it in a parts diagram. must be looking in the wrong spot. if you know the part number, or better yet can show me a link to a parts diagram showing the o-ring in question, that would be great.

thanks.

 

[alldodge]

Re: '79 - '80 merc 470 exhaust elbow o-ring at the transom, looking for part number..

i'm replacing the exhaust elbow on my '79 merc 470 (serial number comes up '80, but boat hin is '79). i found that there's an o-ring that seals the elbow to the transom plate. i can't find it in a parts diagram. must be looking in the wrong spot. if you know the part number, or better yet can show me a link to a parts diagram showing the o-ring in question, that would be great.

thanks.

What's the outdrive serial number

 

[montejw360]

Re: '79 - '80 merc 470 exhaust elbow o-ring at the transom, looking for part number..

i think i found it. mercruiser number 20863, sierra number 18-7152.

 

[alldodge]

Re: '79 - '80 merc 470 exhaust elbow o-ring at the transom, looking for part number..

Sounds great, glad you found it