Where to Buy

[Makedust]

So I was looking for a gasket for exhaust manifold front end cap and upon removal I found out the cast iron cap was broken which contributed to a small leak while engine was running. I looked online but did not really see any caps available. I would like to find this cap online as the only boatyard/junkyard here in SA I can find seems to be run by an really old lady and a group of shady characters who look like they are on drugs. I would like the cap, gasket, and valve cover gasket as well. If anyone can point me in the right direction as to what online parts website I can get this from would be greatly appreciated.
The engine is an OMC 140 Sterndrive.
Thanks in advance.

 

[Scott Danforth]

Other than OMC and the fact its a 3.0 (140hp)
Would help to know what vintage. O MC had 4 different manifolds over the years on the 3.0

May want to check out TC electronics at sterndrive.info. they deal with Obsolete Marine Co

 

[Makedust]

Oh, sorry, it’s a 1977

 

[dubs283]

valve cover gasket should be fairly easy to source, 3.0L engines have not changed much over the years

you can easily make a gasket for the end cap, just get gasket material and cut it to fit with a razor

the end cap is going to be difficult to find, very little chance of finding an oem part new let alone used online. best bet is to scour the internet for an aftermarket one but again there is little in the way of aftermarket support for any OMC brand sterndrive

 

[Scott Danforth]

Valve cover gasket is same for the 2.5. Get a felpro rubber gasket for a 1962 chevrolet 153

 

[Makedust]

Found manifold end cap on wheebay so that has been ordered, haven’t found any rubber gaskets just cork, found some manifold gaskets that will work but I can always make one like Dubs said. I’m 1 out of three so far.

 

[kenny nunez]

Cork was what originally came on the engine. Turn the valve cover over in a vise and tap each mounting hole back so that they are flat with the mounting surface. Only use sealer lightly on the cover surface then install the cover just hand tight. Later then just a little more.

 

[Redrig]

Being an OMC owner , I would certainly bookmark this page below.

it gives the OEM part numbers for everything, you can then search based on those numbers.

http://epc.brp.com/Index.aspx?lang=E&s1=8427e6fd-07ba-48af-89af-4ae2760d7523

Ive had good luck finding almost everything needed for my 77 (with the exception of new Ford manifolds )