lets figure this one out !!!!

[lakeerieboater26]

mercruiser, alpha 1 (1991) 3.o liter

1-on top of the engine, if your look towards the stern. bellow the carb on the left side of it is a bolt that is seated flush with the engine. it has a small gap around it as well. when i started my boat for the first time this season i noticed oil bubbling around it when the engine got a little warmer. Is this a possible leak that is common or is it just oil trapped in the gab heating up. i cant really get to it to wipe it out and dry it. the oil on the dip stick is clean and oil isnt leaking out and dripping anywhere.

2- fuel is leaking from the brass bolt. how do fix it or should it be replaced.

 

[Fishermark]

Re: lets figure this one out !!!!

fuel is leaking from the brass bolt. how do fix it or should it be replaced.

I assume that is a flare fitting. It is pretty buggered up. If you don't have a set of flare wrenches, you need to invest in a good set. It looks like you (or someone) have been using vise grips.

I would remove the fitting and make sure the end of the flare is not messed up - when you reinstall it, you need to hold the receiving fitting securely with a good wrench, while you tighten that fitting into it. If that doesn't work, then yes, you probably need a new line.

 

[lakeerieboater26]

Re: lets figure this one out !!!!

I am not the vice grip culprit ! lol

 

[Don S]

Re: lets figure this one out !!!!

It's also cross threaded.
You need a new line and the fitting the line screws into.

 

[Bondo]

Re: lets figure this one out !!!!

Ayuh,... I Agree with Don,... That carb fitting,+ the line fitting are Junk,... Both need replacing...

The oily bolt looks like a valve cover bolt or a headbolt... Whichever, it shouldn't be Loose...
The oil could be coming from the valve cover gasket, it's Right there...

 

[lakeerieboater26]

Re: lets figure this one out !!!!

so is it just a matter of tightening it or replacing a gasket ?

 

[bomar76]

Re: lets figure this one out !!!!

If you can get those Vise Grips in there you may try tightening it.

 

[lakeerieboater26]

Re: lets figure this one out !!!!

Is this something that frequently happens ? and is it an expensive catastrophic problem ?

 

[Bt Doctur]

Re: lets figure this one out !!!!

Is this something that frequently happens ? and is it an expensive catastrophic problem ?

Only if the correct tools are not used , the hole in question I think is the hot air feed for a mechanical choke. Send me the old line and I`ll make you one.

 

[lakeerieboater26]

Re: lets figure this one out !!!!

hmmm. it doesnt look like it has ever come out. It just looks like the top of a bolt. i will try and post a better pic of it.

 

[Fishermark]

Re: lets figure this one out !!!!

the hole in question I think is the hot air feed for a mechanical choke.

The picture was too small for me to even comment on. Here's a pic of my engine that had the tube Bt Doctur is talking about. You can see the small tube sticking up.... is that where yours is?

 

[solar7647]

Re: lets figure this one out !!!!

It is hard to see in the photo because everything has black paint, but it looks to be a head bolt. The center one in fact. The oil is prob seaping from the valve cover gasket.

The gap would suggest it is loose so you should check it with a torque wrench. It should be 90lb ft.

 

[lakeerieboater26]

Re: lets figure this one out !!!!

fishermark- its the one directly to the center left of the carb.

solar7647- thats the one !

you guys rock,