Found extra bolts/nuts on block from winterization

southernpaddler · Apr 2, 2007

Got a 95 bayliner runabout with a 5.0L 305 mercruiser. I have been taking it to a dealer to winterize and de-winterize but decided to de-winterize it myself this season with the help of a friend who has de-winterized this popular motor many times. I found 2 plastic nuts, and 2 metal bolts sitting on one side of the block. On the other side of the block are two holes with threads, but these 2 bolts do not fit in these holes. I don't know if anything is supposed to screw into these threaded holes, but there is a small pool of oil next to one of these holes. The dealer has a "fuzzy" memory. Any ideas?

Thank you

tommays · Apr 2, 2007

Re: Found extra bolts/nuts on block from winterization

You have about 4 water drains

1 on each side of the motor block and 1 under each exaust manifold

IT has been done a LOT of different ways so and exact answer is hard

Tommays

Gary H NC · Apr 2, 2007

Re: Found extra bolts/nuts on block from winterization

To post pics, go to photobucket.com
Upload pics then copy the image code from under the pic.then paste it into your post..8)

KRS · Apr 2, 2007

Re: Found extra bolts/nuts on block from winterization

[chanting] Pictures! Pictures! Pictures!

southernpaddler · Apr 2, 2007

ok, re-post with pix now: nuts/bolts found on Merc 305 block

ok, re-post with pix now: nuts/bolts found on Merc 305 block

Since I posted earlier today, I got the pix on photobucket and I found a home for 2 of the metal bolts, but not the plastic nuts.

Don S · Apr 2, 2007

Re: Found extra bolts/nuts on block from winterization

Those Blue plastic wing nuts probably go into the tee coming out the bottom of the exhaust manifolds. I would imagine you found a home for the brass plugs in the block, one on each side.

One note. those plastic plugs should be replaced, along with the orings. They get brittle and break after a while, and those look like they have gotten hot before.

Gary H NC · Apr 3, 2007

Re: Found extra bolts/nuts on block from winterization

Also those plastic plugs can be replaced with brass plugs from any hardware store if you can't find new plastic ones...

Bondo · Apr 3, 2007

Re: Found extra bolts/nuts on block from winterization

Ayuh,............

If you Can't Find the Holes those plugs Belong in,........

Fire it Up,....... It'll be Quite Obvious Where they Belong......
There'll be Water Spewing from the Holes.........

RubberFrog · Apr 3, 2007

Re: Found extra bolts/nuts on block from winterization

Bond-o said:
Ayuh,............

If you Can't Find the Holes those plugs Belong in,........

Fire it Up,....... It'll be Quite Obvious Where they Belong......
There'll be Water Spewing from the Holes.........

Well let's not be too practical about it....

southernpaddler · Apr 3, 2007

Re: Found extra bolts/nuts on block from winterization

thanks to all for the advice. glad to know there's a forum out here for this kind of stuff. Hell, there's an on-line forum for just about anything these days isn't there? Give me a holler next time your down in the deep south near Birmingham, AL.

Bondo · Apr 4, 2007

Re: Found extra bolts/nuts on block from winterization

Hell, there's an on-line forum for just about anything these days isn't there?

Ayuh,.............

But,.......
None of them provide the Information at the Speed,+ Accuracy of iboats forums.........

Gary H NC · Apr 4, 2007

Re: Found extra bolts/nuts on block from winterization

Ditto that Bondo....The info on here is priceless...8)

Found extra bolts/nuts on block from winterization

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