Re: [OMC-Boats] oil leak....

From: jd <jdood@...>
Date: Tue, 22 Sep 2009 09:24:57 -0700

ahhhh - it's an even fire 252 V6 manifold - ok. Thanks for digging
that up. Nevermind the carb fit issue, but it shouldn't affect
anything else with the engine performace to have an even fire manifold
on an odd fire engine should it? The water and air are still going
to flow around in there regardless of which piston is firing in what
order right?

So my bigger question is did the even fire's end up in any OMC
boats? Was it just for cars? What i'm getting at is if there was
a marine version of the even fire, then maybe there's a marine
version Rochester carb out there for it that will fit the bigger bolt
pattern and allow me to get rid of all those stupid adapter plates and
gaskets i have to have to make the odd fire RC2 carb fit. Unless it
was getting me some big performance boost (which it's not) I hate
having that jury rigged home made crap on my engine. Even though it
worked. But I LIKE having that extra water temp port on this even
fire manifold, i'm using that port, and I don't want to necessarily
go back to the "correct" manifold and lose that port. So If flying
fish for example had a 252 V6 RC2 carb maybe i'd be set with the best
of both worlds.

I have my existing carb all boxed up ready to send back for a re-
build, but now that I know what I have and can talk to them further
about it all - thanks!!

On Sep 21, 2009, at 7:01 PM, BC Howk wrote:

> I second Scotts offer, I would enjoy the chance to look at another
> OMC boat and compare notes...one of these days I think it would be
> cool to do a "cruise in" out on the Willamette
>
>
> Glad you found your oil leak, I was concerned that you might have
> damaged one of your gaskets looking for that rattling noise...
>
>
> Your research confirmed my suspision, your manifold is for an EVEN
> fire buick V6. The 225 ODD Fire is basically a V8 with 2 cylinders
> lopped off as Buick decided to make something a little smoother
> idling they changed the crank, cam and firing order, recycled
> pistons from their current v8 production in 1973 an voila 231 even
> fire,
> http://en.wikipedia.org/wiki/Buick_V6_engine
> which settles another cuiosity I've had for a long time, an even
> fire manifold DOES work on the 225, which makes me think the inverse
> might be true......interesting.....You'r manifold will also go on
> the 252 evenfire.
>
> Looks like you are getting this all settled out...glad to hear it.
>
> Cheers,
> B.C.
>
>
> On Sep 21, 2009, Scott Veazie <scottveazie@...> wrote:
>
> Hey Jeff,
>
> Let me know if you need an extra set of eyeballs to look things
> over..I've always found that someone to do a quick look over can
> find something simple that I miss on my own..
>
>
> ~Scott
>
> > From: jdood@...
> > To: omc-boats@...
> > Date: Mon, 21 Sep 2009 12:45:07 -0700
> > Subject: Re: [OMC-Boats] oil leak....
> >
> > well actually here's the latest from my oil leak saga (had this all
> > typed up but i think it didn't send - sorry if duplicate):
> >
> > bought 5 qts and poured the first qt into my nice clean engine.
> > Literally as I'm pouring it in, its coming back out somewhere and
> > going into my nice clean bilge! And where was it coming from? The
> > lower edge of the port side valve cover, going behind the metal
> > exhaust manifold gasket, against the black engine backround, and
> > down to the bilge. The reason? In the spirit of getting things
> > stock OMC where possible, I used some extra stock OMC nuts with the
> > oblong washers attached instead of the regular nuts someone had on
> > there previous. Thought it would seal better with those washers
> > too. They felt fine tightening down - didn't notice anything
> > weird. Yet what I felt was tight was actually leaving a nice gap
> > hiding under the lower side, enough to let 4 qts out. As best as I
> > can figure I guess someone must have stripped and re-tapped those
> > holes at some point because the threads are just slightly different
> > than original. I put the regular nuts back in and they went in
> > slightly deeper and sealed everything right up. Jeez! Almost a
> > disaster. I hate the fact that I was driving around awhile with
> > barely any oil. Nothing seized that day though. And although
> > I've never been through it, my understanding is that is pretty much
> > the main symptom of extremely low oil - engine seizure. So i'm
> > hoping because that didn't happen, I'm still ok. Not sure why it
> > had to get all the way down to practically zero before the light
> came
> > on.
> >
> > Anyway, on that day, something else was happening on occasion -
> > something i think was happening to someone else on the list in the
> > past few days. I would be accelerating, get to about 1/2 plane,
> > and all power would just drop to zero. Much like your foot slipping
> > off the gas pedal by accident in a car or something. Engine didn't
> > stall, just went back to idle - still in gear. So after getting
> > the oil leak solved and everything filled back up yesterday - i went
> > for a little test run. Now that occasional problem is happening
> > consistently. Got up on plane a couple times, but generally, it
> > would do it. Just all the sudden no gas or acceleration. I
> > really hope (and don't' think) it has anything to do with the oil
> > situation. I think it's some new independent prob - coincidentally
> > coming up now just to confuse me. It almost seemed electrical -
> > although the engine almost always kept running after dropping down.
> >
> > So I limped back to dock and am pretty much gonna call it a season.
> > In the coming weeks I;m going to get a new carb on there, replace my
> > throttle switch with one of those new ones being made, then give it
> > another test. Hopefully before it gets too cold.
> >
> > Jeff D
> >
> >
> >
> >
> > On Sep 21, 2009, at 11:39 AM, Justin DeSantis wrote:
> >
> > > Not sure how helpful it would be in this application, but
> there's a
> > > method for finding leaks on motorcycles I've used for years.
> Taught to
> > > me by a crusty old timer. Get the area of the oil leak good and
> clean.
> > > Use degreaser and remove all the oil. Not get yourself some
> athletes
> > > foot spray. It sprays as an aerosol and drys as a white powder.
> spray
> > > it on all the seams that may be leaking. When the oil leaks
> through
> > > again, it wets the powder and turns it black in the area of the
> leak.
> > > Makes it easy to spot.
> > >
> > > I tried everything once to locate the leak on a brand new Harley
> > > Sportster. Found it with the spray. It was leaking right through
> the
> > > engine case. Bad casting from the factory.
> > >
> > > On Mon, Sep 21, 2009 at 11:25 AM, BC Howk <bchowk@...>
> wrote:
> > >> A few places
> > >>
> > >> -Head gasket
> > >> -timing cover
> > >> -rear main seal
> > >>
> > >> Check with your auto parts store but I believe they have oil
> > >> additive that
> > >> is flourescent (glows real bright under a black light) they make
> > >> the stuff
> > >> for just this occurance (need to track the source of an oil leak.
> > >>
> > >> Cheers,
> > >> B.C.
> > >>
> > >> On Sep 20, 2009, jd <jdood@...> wrote:
> > >>
> > >> Setting aside my carb fit issue, today's to do list has one thing
> > >> on it - figuring out how about 4 qts of oil ended up in my bilge
> > >> during my last outing! Everything seemed to be going well. Had
> > >> done a 20 min test earlier that day - no probs. Took it out for a
> > >> real run with the GF later that day. At one point the oil light
> > >> started coming on - turned off immediately and poked around
> back at
> > >> the engine. Oil all over the bilge area. But nothing obvious. A
> > >> small drip from one spot on the valve cover gasket - but really
> > >> small. It looked like just enough on the dipstick to get back
> with
> > >> so that's what we did later.
> > >>
> > >> So now a week later the engine and bilge are all cleaned up (2 hr
> > >> messy job). And Im heading off to buy 4-5 qts of oil and go for a
> > >> little test run and see what I can see. I don't get how that
> > >> much oil could come out of the engine and it not be an obvious
> > >> thing. So hopefully with the cowling off I will be able to spot
> > >> it. Jeez - another close call - almost fried my engine.
> > >>
> > >> So here's my question - just to see if I'm missing something. The
> > >> only places oil could be "leaking" out on the engine would be
> > >>
> > >> - valve covers
> > >> - oil pan
> > >> - dipstick tube and / or fill tube where it connects to the block
> > >> - seal around base of distributor
> > >>
> > >> right? am i forgetting somewhere?
> > >>
> > >> Note to self: A black engine and a black bilge make it very
> > >> difficult to spot oil leaks on a bright sunny day. Hoping to be
> > >> able to paint my engine a lighter color this winter.
> > >>
> > >> Jeff D
> > >> _______________________________________________
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Received on Tuesday, 22 September 2009

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