There are at least three "adjustments" that will all interact with
idle speed.
There should be a Rocherster 2 GC carb on your Buick (same carb used
on the V6 and V8 Buicks).
I believe there is a knurnled adjuster on the throttle cable. I also
think there's a throttle stop adjustment screw.
Finally there is a recessed screw on top of some of the single-lever
controls which will adjust the upper limit of the fast/start idle.
Also related to idle are ignition timing, dwell and the idle mixture
jets.
On Aug 29, 2009, at 8:42 AM, Justin DeSantis wrote:
> I can always count on you Lee. I don't know how I missed that manual,
> but now I have it so I'm golden. Gave me some specs I needed. Most of
> the other important specs are on home made labels inside the glove
> compartment lid. The previous owner was seriously anal. By reading the
> manual, it confirmed my guess that the windshield holder is indeed a
> fold out table. It's made of particle board covered with stylish wood
> grain contact paper. I'm thinking I may cover it with a sheet of
> stainless, then I can use my portable grill on it. Burgers on the
> lake. Yum!
>
> Ok about the fast idle deal. With the lever all the way on, my idle is
> WAY higher than 1500-1700. In fact, when it first started, it raced
> above an indicated 3000 rpm, I quickly backed it down. I want to check
> it with a different tach though. I suspect the built in one may be
> telling lies. It was above 1500, but it didn't sound like 3000 to me.
> So, is there an adjustment independent of the idle to adjust the fast
> idle operation? I know, get the service manual. I ordered one. But I'd
> like to be able to get started until it gets here.
>
> As always, thank you guys for all the input. This is a valuable
> resource.
>
>
>
>
> On Sat, Aug 29, 2009 at 8:11 AM, Lee Shuster<lks@...> wrote:
>> Standard idle 500 - 600 RPM FULL FAST/START IDLE 1500 - 1700 RPM
>> LINK to MANUAL:
>> http://www.ultimate.com/omc-boats/gallery/lit.html
>> 1967 Johnson Surfer Owner's Manual
>> Lee
>>
>> On Aug 28, 2009, at 9:21 PM, Justin DeSantis wrote:
>>
>> Thanks for all the advice Lee. I'm confident I can tackle any work
>> that needs done. I'm new to I/O boats, but not new to working on
>> stuff
>> that's broken. I'm a laid off certified tech for 8 motorcycle lines,
>> state inspection license. Fully equipped shop. Yadda yadda. Once I
>> can
>> get a few hours with no rain, I'll be able to get out there and
>> really
>> look it over and track down the problem. Let me ask you this, with
>> the
>> fast idle all the way on, how fast should the boat be idling? And
>> normal idle speed is 550?
>>
>> Varnish doesn't appear to be my problem. Tank is clean and smooth,
>> you
>> could eat off the interior of it. Fuel filter is new, and clean. Carb
>> is clean as well. I'm thinking the gas may just be a bit old and
>> possibly have some water in it. The mine in which the previous owner
>> stored the boat only allowed it to have a half tank of gas. So I
>> think
>> maybe some condensation on the inside of the tank may have gotten
>> moisture in the fuel. I'm hoping anyhow. I will check the timing and
>> dwell though.
>>
>> Table thing... I only have the one photo and it's too dark now to
>> take
>> more. This is the only one I have for now.
>> http://i232.photobucket.com/albums/ee285/nitsujcbr/good%20ship%20lollypop/IMG_1458.jpg
>> I wasn't aware that there was a manual for download. My searching
>> didn't turn up with anything. Do you have a link by chance?
>>
>>
>>
>> On Fri, Aug 28, 2009 at 10:43 PM, Lee Shuster<lks@...> wrote:
>>
>> BC pretty much took the words out of my mouth.
>>
>> 1) Engine: Simple in theory: It pretty much is all about delivery
>> of
>>
>> perfectly timed spark with the proper amount of clean fuel. But in
>> practice
>>
>> with 40+ year old parts it's another story, that even taken a step
>> at a time
>>
>> can interfere with our basic need to "I just want go
>>
>> fishing/skiing/diving/wakeboarding/crusing, not spend a lifetime
>> working on
>>
>> this old tub." You basically need to step back and commit to
>> learning how
>>
>> to do basic engine tuning )setting points, dwell, timing, etc and
>> performing
>>
>> some mechanical repairs such as carb cleaning, rebuilding,
>> adjusting. Or
>>
>> find yourself a trusted mechanic.
>>
>> The single largest contributor to electric shift failures is that
>> people
>>
>> don't know how to keep them running at their design idle speed
>> properly.
>>
>> Your Buick should idle smooth as butter at 550 RPM, after a few
>> minutes of
>>
>> warm up time (130 -140 deg F at thermostat.) when it's dialed in or
>> properly
>>
>> tuned up to published spec. These are things you need experience,
>> tools and
>>
>> manuals to accomplish or alternatively a trusted mechanic.
>>
>> 2) Fuel -- Fresh fuel "helps" (maybe) but the entire fuel system
>> can "hide"
>>
>> varnish, rust and moisture and can take literally dozens of hours
>> or even
>>
>> entire seasons to fully filter or flush out. I always start any
>> vehicle
>>
>> restoration by pulling the tank and having it profession cleaned and
>>
>> re-lined, you really have to start all the way up the chain.. Do a
>> google on
>>
>> the RENU tank process. Also installing a modern fuel separation
>> filter is a
>>
>> good idea over the off-season. Replace the existing fuel filters as
>> well.
>>
>> Drop the carb bowls and check float levels and valve seating. If
>> you decide
>>
>> to go the rebuilt carb roue (and I'm not saying you need too -- be
>> sure and
>>
>> get a MARINE-rated replacement. Trust me, taking short cuts rarely
>> pays off.
>>
>> She wants and needs the TLC treatment, skip it and she'll embarrass
>> you at
>>
>> the worst possible time!
>>
>> 3) Steering -- 99.9% of the OMC built boats use the aircraft style
>>
>> rope-over-pulley (I believe I am one of the few who converted to
>> TruCourse,
>>
>> a OMC push-push type steering). Is it perfect no? Can you avoid
>> issues YES!
>>
>> Never raise the power tilt unless the drive is pointer straight
>> ahead.
>>
>> Don't turn the drive while it is in the up position. Try to resist
>> extremely
>>
>> fast lock-to-lock helm wheelspins ) you know, Cowboy turns to show
>> off your
>>
>> OMC stringer's wonderful sharp turning ability? . (Don't install a
>> "necker"
>>
>> knob on your steering wheel.) If you follow this advice you
>> probably won't
>>
>> encounter steering problems.
>>
>> 4) Table/windshield thing? You'll need to provide more detailed
>> photos.
>>
>> Perhaps another 67 Surfer owner can chime in? Nothing like that on my
>>
>> Sportsman. Have you downloaded the free. available Surfer owners
>> manual? It
>>
>> usually explains these model-specific features. BRP/OMC may still
>> carry your
>>
>> owners manual as well. Grab one while you can if they still have your
>>
>> specific model.
>>
>> Lee
>>
>>
>> On Aug 28, 2009, at 6:22 PM, BC Howk wrote:
>>
>> Justin,
>>
>> Not much experience with the Buick V-8....
>>
>> Some new Gas certainly won't hurt. Are you adjusting just the idle
>> speed?
>>
>> have you messed with the idle mixture yet? Did you check the
>> timing? Did you
>>
>> let it get good and warm? Sounds like you have some mechanical
>> experience
>>
>> so sure you got most of this covered but have to double check.... My
>>
>> experience with the V6 nailhead has been.... Fresh oil, fresh
>> plugs, warm it
>>
>> up, check/ adjust the timing (if you havent put on a pertronix kit
>> yet check
>>
>> your points and dwell and consider the kit), adjust the mixture
>> (with a
>>
>> vacuum guage) adjust the idle speed, then repeat, timing, mixture,
>> idle
>>
>> until I can get no further improvement, and she runs great. Once
>> it's dialed
>>
>> in the seasonal tune up isn't so bad.
>>
>> I think it is just about universaly accepted that the cable and
>> pulley set
>>
>> up is......"sub-optimal" particularly compared to the tru course
>>
>> system...that being said.. I still run the cable and pulley system
>> and it
>>
>> works pretty well. Just check the cable for any fraying in the
>> vynil jackets
>>
>> as this can cause you to slip a pulley , then you have to crawl
>> under the
>>
>> dash and take apart the pulley get the cable back on, yadda, yadda,
>>
>> yadda....
>>
>> If you have the time, run across a good deal on a true course set
>> up and
>>
>> feel you want a project, convert!! Otherwise, if you take care of
>> your
>>
>> cables/pulleys they will serve you fairly well. I restrung mine a
>> couple
>>
>> years ago and think it may not have been the first time, but I
>> detected some
>>
>> less than desirable methodology on the set of cables I replaced
>> (missing
>>
>> shock springs ect.) If your set up is in good shape, just take it
>> easy with
>>
>> the wild manuvers and you'll be fine,.
>>
>> Knowing what I have under there I actually find the steering
>> suprisingly
>>
>> crisp and easy at speed (remember, judging on a curve, I know whats
>> behind
>>
>> that steering...amazing)
>>
>> Cheers,
>>
>> B.C.
>>
>> On Aug 28, 2009, Justin DeSantis <duc1098desmo@...> wrote:
>>
>> I found a few things. It fired right up, but the fast idle level
>> seems
>>
>> to make it idle way faster than I'd like. I had to turn it almost all
>>
>> the way down to get it in to what I felt comfortable with. And no
>>
>> amount of warming up seemed to let it want to run without the lever.
>>
>> If I tried to get it to 1000rpm on the tach it would die. I'm
>> thinking
>>
>> (hoping) that filling it with fresh gas and running it a bit will
>> cure
>>
>> that. Not other major problems found. Horn has resumed normal
>>
>> operation, I'm thinking the battery was just low.
>>
>> Let me ask this, how reliable is the steering system? That cable
>>
>> running back the length of the boat and changing direction a few
>> times
>>
>> seems like a good place for a failure to happen. Anything to worry
>>
>> about there?
>>
>> Still haven't figured out the table windshield holder thing, but
>>
>> didn't really put any time in to it.
>>
>> Looked at the transom. Sort of hard to read. It's maybe a little
>> soft,
>>
>> but not rotten. It pretty much looks and feels like 42 year old wood.
>>
>> Anything I can put on it to strengthen it or keep it from getting
>>
>> worse?
>>
>> I think that was all the questions I came up with today.
>>
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Received on Saturday, 29 August 2009
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