Thanks for the replys.
Both cylinders are within spec when measured with a bore gauge, and mic. This appears to be a low use/low hrs block from a motor that was parted out.
OMC made one OS option for this engine (.020), and the parts appear to be far less common these days then the original...
Looking for opinions from the folks who have put a similar powerhead together.
I've got a '56 Fleetwin that I've decided to build a backup power head for (as crazy as that sounds).
I've got a used block, with some surface rust in the cylinders, but the bores are otherwise good shape.
I have...
Just wanted to update this posting, mostly for a reference to someone who might have a similar issue down the road. .
After taking 2 months to get my butt in gear, per F_R's suggestion, I finally pulled the powerhead last night to check the carbon seal.
What I ended up finding was the carbon...
Thanks for the reply.
Both the head, and the deck of the block was resurfaced back in 2012 with sandpaper taped to a piece of tempered glass.
I had taken lots of photos of the process which are in the thread I linked in my original post here to show how I do it, incase someone else wanted to...
Thanks for the reply.
Carb adjustments have been tuned for peak performance on both low speed, and high speed needles, and I always do add just a slight favoring of running it a bit rich.
This is a bronze bearing engine (no roller bearings on either the crank bearings, or rods). The original...
F_R, thanks for the reply! I was hoping you were still on here after all these years.
I don't think that I replaced the carbon seal when I did the clean up on this back in '12, so it's something I should order and replace.
What's coming out of that cylinder isn't like its getting sprayed out...
Hello all!
It’s been many years since I’ve posted on Iboats. Good to see some of the old hands are still around after thumbing through a few of the newer posts.
I come here asking for some feedback on an issue I’m having with old friend. A ‘56 Fleetwin I freshened up back in 2012 that I did a...
Re: Help-Part number for Fuel Pump 89 Bayliner
Pap,
If you want to know what you have (305/350) there is information cast into the block that can tell you.
Facing the engine, on the right side in the back where the block meets the intermediate housing for the drive, typically the...
Re: Volvo AQ125 cooling
Click on this;
Volvo Penta I/O & Inboard Gas Engines & Outdrives
Find the box towards the top left of the page that looks like this;
Click on that.... ;)
Re: 1984 OMC 2.5 sterndrive runs fantastic for 20-25 minutes then dies
Which manual are you using?
If it's a Clymer, or Seloc they can often lead people on wild goose chases with misinformation (ditch it if that's what you have).
A factory manual is the best.
If I look up a 1984 OMC 2.5...
Re: timing cover questions
Facing the engine it would be on the right side cast into the block right where it meets the flywheel cover.
Spot #3 on this diagram;
