1986 Mercruiser 260 Advice

[Scott06]

Haha thank you all. Realized in misspoke with I called it a pre-alpha. Confirmed it is a R/MR and I will be rebuilding it.

Ordered T4 Rotella 15w40 (non synthetic), just looking for the oil filter now. Ordered an oil extraction pump also.

Small block Chevy has used one of two oil filters since 1955, short one or long one. Any auto parts store will have.

 

[crazy charlie]

Haha thank you all. Realized in misspoke with I called it a pre-alpha. Confirmed it is a R/MR and I will be rebuilding it.

Ordered T4 Rotella 15w40 (non synthetic), just looking for the oil filter now. Ordered a oil extraction pump also.

Very common filter that you can get anywhere.Pretty much any GM V8 car, truck etc take the same in that same year range. I think AC Delco PF 25, I am going by memory and usually get the letters wrong.Charlie

 

[dubs283]

AC Delco PF 454

FIFY

Also recommended would be standard Mercury/Quicksilver GM V8 oil filter

 

[LakeMichiganBoater]

Alright... for the life of me i can't find the oil dipstick. I have the port side exhaust manifold off as all and I'm looking all over... what am i missing?

 

[Scott06]

Alright... for the life of me i can't find the oil dipstick. I have the port side exhaust manifold off as all and I'm looking all over... what am i missing?

post a pic. Hard to see what you have from the words typed.

 

[dubs283]

On some 260 models the dipstick is accessed from the front stbd area of the engine assy. Painted black so as to visually blend in nicely with surrounding areas.

Later/other models mcm/mie used a yellow colored pull end so as for quick identification

 

[todhunter]

Alright... for the life of me i can't find the oil dipstick. I have the port side exhaust manifold off as all and I'm looking all over... what am i missing?

My boat is a 1987 with a Mercruiser 260hp. See the picture below - red arrow points to where my oil dipstick is. It is at the front of the engine, amidst the pulleys and coolant hoses.

 

[Bondo]

Alright... for the life of me i can't find the oil dipstick. I have the port side exhaust manifold off as all and I'm looking all over... what am i missing?

Ayuh,.... Chevy moved the dipstick to the starboard side, in 1979,.......

 

[LakeMichiganBoater]

post a pic. Hard to see what you have from the words typed.

 

[LakeMichiganBoater]

Here is the only pic i have right now. Still have had no luck locating it. I'll take more pictures next time I'm out at the boat.

 

[Pmt133]

This cropped in maybe? Kind of looks right?
Starboard valve cover near fill cap...

 

[LakeMichiganBoater]

This cropped in maybe? Kind of looks right?
Starboard valve cover near fill cap...
View attachment 398055

Could be! Ill check it out.
Had two other people helping me look too! I'm kicking myself if that's it.

 

[LakeMichiganBoater]

Ayuh,.... Chevy moved the dipstick to the starboard side, in 1979,.......

Sorry, that was confusing on my part. I had the port side manifold off for other reasons.