Recent content by vwbjohn

Great. Gives me a few more options when looking for a replacement powerhead. Thanks for the info.

Sounds good. Fatz was saying 1991 powerhead would work as well. You mentioned 150, would there be any issues putting a 150 powerhead in place of the 135 on my motor? I understand it would give me more power but would the rest of the motor take it? Are the 150’s just a different bore and...

Thanks. Sorry for being a JA in my previous response. I’m not an outboard mechanic, just thought trying some tricks I’ve used on cars might work. So The 1991 will bolt right up? I’ve seen several remand for sale so I’ll check them out. Thanks again for your help. John

If you read my original message, I was already considering a new/rebuilt powerhead. How can trying something in the interim be “wasting my time”? I obviously wasn’t disregarding his advise, I guess it was the way he worded it. I’d still like his advice on optional powerheads if he has one.

We’ll as much as I’d like to thank you for your comment, it didn’t do anything for me. I think I know what I need to do but it doesn’t hurt to try some a less expensive method. I use seafoam in my cars so no expense wasted. Now if you can tell me if any other year powerhead will fit vice...

I bought a 1989 Mercury 135 black max (serial#C166987). It has compression in 5 cylinders from 100-110 but one cylinder is dead. I’m currently soaking the cylinder in seafoam to see if I can get the rings unstuck. I’ve been told by several mechanics that I’m going to need to rebuild the...