Re: [OMC-Boats] 1969 coil?

ill just toss this one out - i had a similar thing going on way back
when and had a mechanic tell me it was the fuel vaporizing in the line
between the pump and the carb. he said the flawed design of having
the copper fuel line pass to close to the hot engine might be getting
the fuel so hot it was vaporizing a bit. i think i replaced the
fuel pump or something back then and it was fixed. can't remember,
been too many things since.....

On Jun 15, 2009, at 5:39 AM, <wheresjerry@...>
<wheresjerry@...> wrote:

> Thanks for the info on the point possibility. That is some of my
> thoughts too is that if it is misfiring, of course you would see
> intermit intent gas going into the carb as the boat was fluctuating
> it's rpms due to bad firing?? I have the original owner who is also
> an x-mechanic come over and take a look. Being the original owner,
> he would know how it ran, and hopefully know what's what with it.
> Hopefully!
>
> All the filters are new also. I had the same problems last Summer
> with it running like that, and this year we did the fuel line,
> filter, and fuel pump, only to have it happen again. When I put the
> boat in last year, it did not exhibit the same issue till about an
> hour into running it, so I am thinking, something just went on it to
> cause the problem.
>
> Any more suggestions still welcome!
>
> karl/wheresjerry banach
> 105 browns pasture rd
> strafford, nh 03884
>
>
>
> --------------------------------------------------
> From: <omc-boats-request@...>
> Sent: Monday, June 15, 2009 1:04 AM
> To: <omc-boats@...>
> Subject: OMC-Boats Digest, Vol 26, Issue 37
>
>> Send OMC-Boats mailing list submissions to
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>> Today's Topics:
>>
>> 1. Re: OMC bilge/blower combo (Kim Foster)
>> 2. Re: 1969 buick v6 omc coil (BLDFW)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Sun, 14 Jun 2009 20:48:36 -0700
>> From: Kim Foster <snagf@...>
>> Subject: Re: [OMC-Boats] OMC bilge/blower combo
>> To: <omc-boats@...>
>> Message-ID: <BAY107-W6473FF2316E45A0CDB079B83E0@...>
>> Content-Type: text/plain; charset="windows-1252"
>>
>>
>> Scott - If your housing parts are good, I might suggest you contact
>> Sound Starter Rebuild in Tacoma, Washington... I use them on my car
>> restorations for old heater/defrost units. They will rebuild/rewind
>> all kinds of electric motors...for a pretty cheap price. They look
>> and function as new.
>>
>>
>>
>> Jake
>>
>>
>>
>> From: scottveazie@...
>> To: omc-boats@...
>> Date: Sun, 14 Jun 2009 15:29:12 -0700
>> Subject: [OMC-Boats] OMC bilge/blower combo
>>
>>
>>
>> All,
>>
>> Does anyone have a functioning original bilge/blower combo unit
>> they'd like to part with? I'm not sure I'll be able to salvage
>> mine...lots of rust and oil contamination....
>>
>> ~Scott
>>
>>
>>
>> Insert movie times and more without leaving Hotmail?. See how.
>> _________________________________________________________________
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>> ------------------------------
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>> Message: 2
>> Date: Sun, 14 Jun 2009 21:37:42 -0700 (PDT)
>> From: BLDFW <bldfw@...>
>> Subject: Re: [OMC-Boats] 1969 buick v6 omc coil
>> To: "Evinrude & Johnson Boats of the 1960's and 70's"
>> <omc-boats@...>
>> Message-ID: <539110.34438.qm@...>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> Before going to that expense, I would double check the points.? It
>> could be they are 'floating' at higher speeds and making
>> inconsistent contact.?
>>
>> I had a buddy redo his points on a twin engine boat and
>> inadvertantly left a tension spring off.? He didn't run at full
>> throttle that much so it wasn't immediately apparent as to the
>> problem but anytime he ran the RPMs above 2500 it would start to
>> misfire and behave as though it were fuel starved.? He looked at
>> everything but that and then by chance happened to explain the
>> problem to the marina shop to which they mentioned "floating
>> points".? He looked again, added a spring and all was well again.
>>
>> Sounds like my learning experience with my classic '73 Chrysler
>> Town & Country wagon.? The previous owner installed an electric
>> fuel pump because it "vapor locked".? I began experiencing problems
>> with fuel starvation so naturally after awhile I spent $70.00 and
>> replaced the fuel pump only to have the problem continue.? Turned
>> out to be the $1.70 fuel filter in the glass tube.? It looked fine
>> until I inadvertantly jarred it and the glass became coated with
>> dislodged crud from the filter.? Lesson learned.? Start with the
>> CHEAP stuff and work your way up to replacing the boat from there.
>>
>> -Bill
>> Dallas, TX
>> 1970 Evinrude Explorer - 155 Buick V6 - OMC Sterndrive
>> http://www.photobucket.com/evinrude_explorer
>>
>> --- On Sun, 6/14/09, Lee Shuster <lee.k.shuster@...> wrote:
>>
>> From: Lee Shuster <lee.k.shuster@...>
>> Subject: Re: [OMC-Boats] 1969 buick v6 omc coil
>> To: "Evinrude & Johnson Boats of the 1960's and 70's" <omc-boats@...
>> >
>> Date: Sunday, June 14, 2009, 1:51 PM
>>
>> Ah, now it makes a little more sense. It's the "let's replace
>> everything, in hopes we find the real cause..." school of
>> troubleshooting." We've all been there, done that.
>> Maybe a better way is a troubleshooting strategy that determines
>> the root cause with the least amount of guess work and expense. Why
>> replace something when it ain't broke?
>>
>> Has your guy been out on the water with you????It's difficult to
>> understand the symptom for list members or mechanics without
>> actually feeling or experiencing the symptom on the water.?
>>
>> It's fairly easy to diagnose and eliminate all battery-coil-
>> ignition causes by using a typical automotive oscilloscope or
>> ignition analyzer. 'Scopes immediately pinpoint any ignition
>> problems, be it ballast resistor, points (dwell setting),
>> condensor, rotor, cap, HT wires, spark plugs, or coil, as well as
>> static timing and any advance timing issues.? Just doing a simple
>> but complete, backyard ignition tune-up is fairly easy for most
>> shade-tree mechanics, if you have a dwell meter-tach, a set of
>> feeler gauges, and a timing light (or you could convert to an
>> electronic ignition setup like the Petronix.)
>>
>> I seriously doubt your coil is causing WOT cut-out, but anything is
>> possible. Does your mechanic have an ignition analyzer?? If you
>> can't perform a complete ignition tune-up yourself, have you asked
>> him to perform one? Start by checking for where the points dwell is
>> set and where the static ignition timing is set?? (Adjusting dwell
>> angle will affect timing.)? Do all other ignition-related functions
>> check out, like turn-key starting, hot or cold?
>>
>> If I had to take an educated guess, based on the information you've
>> provided so far,? your WOT (what RPM?) "it starts to sputter"
>> symptom is probably 90% fuel related.? It is pretty common to chase
>> fuel-related issues on old boats that have sat around and then been
>> returned to service. Did you chase these same symptoms last year?
>> (You didn't say whether or not your six, maintenance items were
>> done all at once or over time.)
>>
>> Also, if you didn't start at the source (the fuel tank and the fuel
>> you put into it) and you didn't pull out the tank and steam clean
>> and seal it, there's a good possibility that it will continue to
>> contaminate your fuel system. I'd recommend you re-trace all
>> aspects of your fuel delivery system including the carb, as it
>> doesn't take much in the way of fine rust or other contamination to
>> cause the symptoms you have described.? To prove a point, I've seen
>> guys rig up a small auxiliary fuel tank to bypass the main system.
>> Also, you didn't mention what you used for a replacement fuel pump??
>>
>> BTW, OMC never factory-installed check-valves in their fuel tanks,
>> to the best of my knowledge. That doesn't mean someone else hasn't
>> in the last 40 years.
>>
>> Personally, the kink in your mechanic's replacement fuel line is
>> one step away from a fire or explosion waiting to happen. I'd be
>> all over him to replace that before you take the boat out again.
>> The last thing you need is a little vibration causing a pin hole in
>> the line, resulting in a fine mist of highly flammable, gasoline in
>> you closed engine compartment. We'd all like to keep you and your
>> boat around a little longer!
>>
>> Lee Shuster
>> Utah
>>
>> ________________________________________
>> From: omc-boats-bounces@... [omc-boats-bounces@...
>> ] On Behalf Of wheresjerry@... [wheresjerry@...]
>> Sent: Sunday, June 14, 2009 11:25 AM
>> To: omc-boats@...
>> Subject: [OMC-Boats] 1969 buick v6 omc coil
>>
>> Ok, to be more specific, I have been having an issue of when my
>> boat is wide
>> open, it starts to sputter and seems to be gas starved.? What I
>> have done so
>> far is:
>>
>> 1-Replace gas line.
>> 2-Install fuel separating filter.
>> 3-Install new fuel pump.
>> 4-Install new gas line from pump to carb.**
>> ? ? Mechanic put a small, but noticeable kink in metal fuel line.? It
>> appears that it could be restricting.
>> 5-Changed plugs and wires.
>> 6-Cleaned carb.
>>
>> All of this was done in order to stop fuel starvation issue, but to
>> no
>> avail.? :(
>>
>> This is the 2nd season out on the water, and I need to get to the
>> bottom of
>> this before I spend more money on my mechanic.
>>
>> I'd like to change out the kinked fuel line to a flexible line to
>> avoid
>> kinking, where can I find one?? Also, could my coil be shitting out
>> at high
>> rpm, causing rpm loss, which would cause the mechanical pump to
>> fluctuate
>> starving motor for fuel?
>>
>> I have posted questions in the past about this, but figured that a
>> list as
>> to what has been done might help solving this issue.? My mechanic
>> also
>> suggested it could be from a check valve in the gas tank?
>>
>> Any help would be grateful in solving this issue!
>>
>>
>>
>>
>> karl/wheresjerry banach
>> 105 browns pasture rd
>> strafford, nh? 03884
>>
>>
>>
>> --------------------------------------------------
>> From: <omc-boats-request@...>
>> Sent: Sunday, June 14, 2009 12:00 PM
>> To: <omc-boats@...>
>> Subject: OMC-Boats Digest, Vol 26, Issue 30
>>
>>> Send OMC-Boats mailing list submissions to
>>> omc-boats@...
>>>
>>> To subscribe or unsubscribe via the World Wide Web, visit
>>> http://lists.ultimate.com/mailman/listinfo/omc-boats
>>> or, via email, send a message with subject or body 'help' to
>>> omc-boats-request@...
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>>> When replying, please edit your Subject line so it is more specific
>>> than "Re: Contents of OMC-Boats digest..."
>>>
>>>
>>> Today's Topics:
>>>
>>> ???1. Re: 1969 buick v6 omc coil ? (Lee Shuster)
>>>
>>>
>>> ----------------------------------------------------------------------
>>>
>>> Message: 1
>>> Date: Sun, 14 Jun 2009 09:05:25 -0600
>>> From: Lee Shuster <lee.k.shuster@...>
>>> Subject: Re: [OMC-Boats] 1969 buick v6 omc coil ?
>>> To: "Evinrude & Johnson Boats of the 1960's and 70's"
>>> <omc-boats@...>
>>> Message-ID:
>>> <A862F82A5046A24EAAB14F5651B69AE344AA0874E0@...>
>>> Content-Type: text/plain; charset="us-ascii"
>>>
>>> Karl,
>>>
>>> How have you tested the coil or determined that you need a new
>>> one?? They
>>> rarely fail, so I'm curious as to why you think you need a
>>> replacement?
>>> What resistance have you measured on the Primary side?? What
>>> voltage are
>>> you seeing on the Secondary side????Have you checked the ballast
>>> resistor
>>> and it's connections?? This might help :
>>> http://autorepair.about.com/od/troubleshooting/ss/coiltest-
>>> manual.htm
>>>
>>> Your 155 OMC Buick-Jeep 3.7L V6 Ignition Coil is a "universal" style
>>> canister-style, that uses an external ballast resistor. In other
>>> words it
>>> is not unique to the Buick V6 and it is not an electrical part
>>> that is
>>> "marine" rated for instrinsically safe operation. While it is
>>> called-out
>>> as a 12-Volt coil in application, the ballast resistor only allows
>>> 12V to
>>> flow during start-up cranking. Once the engine is running the
>>> ballast
>>> resistor reduces the voltage to the coil by approximately half. So
>>> in
>>> actual running operation the coil does it's job on only 6 to 8
>>> volts,
>>> adding further confusion.? Some 12-volt coils are sold with their
>>> own
>>> internal ballast resistor, so unless you want to bypass your
>>> existing
>>> EXTERNAL ballast resistor, don't get one of those.? Keywords for
>>> your
>>> search: 12-volt, external ballast resistor, oil-filled, canister-
>>> style
>>> automotive ignition coil.
>>>
>>> If you want a "drop-in" stock replacement, just get a generic 12-
>>> Volt
>>> (using external ballast resistor) cannister style coil, with a
>>> similar
>>> diameter to the one you have. It the new one is slightly smaller
>>> diameter
>>> you can shim it to the clamping bracket holds it securely.?
>>> Sometimes
>>> replacement coils might be a little taller, so make sure you
>>> measure the
>>> existing space for height and diameter.? You can find these coils
>>> just
>>> about anywhere, ranging from $20.00 to $50.00 dollars depending on
>>> whose
>>> name is on them , how they are externally dressed,? and who's
>>> marketing
>>> them up.? You can pay a little more if you want a higher ourput
>>> spark
>>> voltage, but I wouldn't go there unless you are considering
>>> replacement of
>>> the stock points with an electronic ignition system.? In other
>>> words, you
>>> are only complicating your search by barking up the Buick or Jeep
>>> 225 V6
>>> (3.7L) tree.
>>>
>>> While you're at it, don't forget that the best coil in the world
>>> won't be
>>> worth much unless you replace the the HT (High Tension) secondary
>>> wires
>>> running to the distributor and from the distributor to the spark
>>> plugs,
>>> including the distributor cap. You can get the wire in bulk and
>>> cut to fit
>>> or buy a V6 or V8 set and route the wires as neatly as you can.
>>> The Buick
>>> distributor is in a rather odd place compare d to most GM V
>>> engines, so
>>> the distances the HT wires have to travel are a little different.
>>> The
>>> DISTRIBUTOR cap is something that is unique to the 225 Buick V6
>>> (3.7L) and
>>> that should be available at your local NAPA store. In other words.
>>> do NOT
>>> substitute any other GM V6 distributor or cap for the 150-155 hp
>>> OMC -
>>> Buick- Jeep 1964 - 1972 225 (3.7L) odd-fire V6.
>>>
>>> You can read more than you ever wanted to know about the world's
>>> first
>>> mass-produced V6 at:
>>> http://hhscott.com/evinrude/buick_v6.htm
>>>
>>> Lee Shuster
>>> Utah
>>>
>>>
>>>
>>>
>>> ________________________________________
>>> From: omc-boats-bounces@...
>>> [omc-boats-bounces@...] On Behalf Of wheresjerry@...
>>> [wheresjerry@...]
>>> Sent: Sunday, June 14, 2009 5:38 AM
>>> To: omc-boats@...
>>> Subject: [OMC-Boats] 1969 buick v6 omc coil ?
>>>
>>> Any one assist me in locating a ignition coil for my OMC Buick v-6
>>> 155 hp
>>> sterndrive....I have been searching all the usual places NAPA,
>>> Advanced
>>> Auto, etc....it seems all pages do not carry a Buick v6 engine,
>>> and I do
>>> not want to purchase a wrong coil....most are listed as v-8's and
>>> inline
>>> 6's...no v6.
>>> thanks!!!
>>>
>>>
>>> karl/wheresjerry banach
>>> 105 browns pasture rd
>>> strafford, nh? 03884
>>>
>>>
>>> is on them
>>>
>>> ------------------------------
>>>
>>> _______________________________________________
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>>> OMC-Boats@...
>>> http://lists.ultimate.com/mailman/listinfo/omc-boats
>>>
>>>
>>> End of OMC-Boats Digest, Vol 26, Issue 30
>>> *****************************************
>>>
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Received on Monday, 15 June 2009