Replacing Power Head - 1974 Mercury 115hp

mikesboat

Cadet
Joined
Jun 27, 2010
Messages
18
I've got '74 Mercury 115 Inline 6. Compression in #1 is 20psi, other 5 cyl. are 115 -120. I've found a replacement powerhead, seller claims it's never been used before. Attached are a couple of images. Can anyone take a look & give me a little advice. I've never replaced a Powerhead before, wondering what the procedure is or if I should just have mechanic change it out. Also, can you verify that this Powerhead is correct for my '74 Inline 6 - 115HP - 1150model
Thanks!
 

Attachments

  • Powerhead 1.jpg
    Powerhead 1.jpg
    150.3 KB · Views: 0
  • Powerhead 2.jpg
    Powerhead 2.jpg
    148.6 KB · Views: 0
  • Powerhead 3.jpg
    Powerhead 3.jpg
    143 KB · Views: 0

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,616
Re: Replacing Power Head - 1974 Mercury 115hp

Wont work as its a ADI ignition powerhead from 1978 1/2 and up.It has no place for distributer...
 

mikesboat

Cadet
Joined
Jun 27, 2010
Messages
18
Re: Replacing Power Head - 1974 Mercury 115hp

Do you know of a good source for good used Powerheads? Images of my motor are attached.
 

Attachments

  • Merc 115.jpg
    Merc 115.jpg
    140.8 KB · Views: 0
  • Merc 115 - 2.JPG
    Merc 115 - 2.JPG
    138.6 KB · Views: 0

usskydvr

Chief Petty Officer
Joined
May 27, 2009
Messages
494
Re: Replacing Power Head - 1974 Mercury 115hp

Send a Private Message to Clams Canino ( on this forum) he rebuilds them.
 
Top