Quicksilver shift cable engine cutout dilemma
 

"Jim" wrote
Spend a few hundred to eliminate the liability issues you would have to
deal with if you crash into another boat and cause personal injury,
because of a missed shift.

As an additional precaution, it might be wise to avoid placing one's self in
such situations as "floating toward a parked Glastron at 10 knots" and where
the only way to "avoid collision with docks, shorelines and other boats" is
flawless mechanical operation. (I'm picturing a scene from PT-109.)

Quicksilver shift cable engine cutout dilemma
 

Eisboch wrote:
The same guy came to me one day with, believe it or not, a 6 volt hotplate
that he dug out of his pile of junk someplace. It must have been built in
the '40's or earlier. He wanted me to design and build a voltage divider so
he could run it on his 12 volt boat battery. Remembering the well
intentioned refrigeration guy, I told him to take a hike.

You get what you pay for.

Eisboch


"You get what you pay for"

And if you had tinkered with his stuff, and it didn't work, you would
have payed for it dearly.

good call!

Quicksilver shift cable engine cutout dilemma
 

All alphas use a shift interrupt switch, no matter what the year.

One thing to make sure is that the shift cable is routed so it does not
have any sharp turns in it. Also the shift cable housing can not be
tied tight with wire ties or anything else along the route. The only
hard fastening points for the housing are at the ends. It has to be
able to slide forward and back a little. It can be held in place
loosely with wire ties. It is the tension in the shift cable housing
that activates the interrupt switch. Alphas do not want to come out of
gear as long as the engine is "pushing" the drive. So as you pull on
the shifter the cable housing moves in the opposite direction. Once
enough tension has been applied to the cable housing it activates the
interrupt switch. That stalls the motor momentarily and then it can
come out of gear. This also releases the tension on the cable housing
and releases the switch allowing the motor to catch before it stalls
completely. All this happens on that black shifter plate where the
main shift cable connects to the smaller shift cable that goes to the
outdrive. The service manual has an adjustment procedure that if
followed produces satsfactory results. But first make sure you have no
issues with the cable. It's a waste of time to adjust it when there
are cable problems.

It is a bit of a rube goldburg set up but when installed and adjusted
correctly it does work.


JohnH wrote:
On Sun, 19 Nov 2006 13:39:45 -0500, "Kilgore Trout"
wrote:


"JohnH" wrote in message
.. .
On Sun, 19 Nov 2006 11:53:44 -0500, "Kilgore Trout"
wrote:

This topic may have been done to death already, apologies for this repeat.


I've got a Mercruiser 130hp carburated 4.0L 4-cyl inboard with the
Quicksilver shift cable system. When switching between forward and
reverse
the shifter is supposed to be stopped in idle for a brief moment before
changing intp gear. Every so often when I do this the engine cuts right
out
as the shifter goes into idle. This happens when docking or embarking,
often after a 10m lake haul, causing a mad scramble to restart the engine
and avoid collision with docks, shorelines and other boats. Except the
only way to prevent further stalls is to ram the shifter through the idle
without stopping, and not good for the drive. I know that the shift
system
intentionally cuts the ignition spark for a millisecond to protect the
cables and drive gears from damage by a cutout switch on the switch plate,
and that there's a lower cable to the sterndrive and another between the
shift box and shift plate.

I don't know if I should pull the tools and try to fine tune the settings
and risk overlooking a critical tweak, discovery this fact floating toward
a
parked Glastron at 10 knots, or take it to the marina?

I've gotten nowhere with this marina on this matter though, and I know
that
the mechanic knows what the problem is. They just want me to come
crawling
on hands on knees with a wad of dough.


KT


When I was having a similar problem, one of the old time mechanics at the
marina said "not" to hesitate when shifting from forward to reverse, when
the rpm is at a reasonably slow amount.

Now I don't pause. It's one motion from forward to reverse, and I've had
no
more problems.

Is your's a Mercruiser? Mine's a 1989. Bought it used, in good shape.
The seller said that I should always briefly idle the stick before changing
into forward or reverse because of the systems design. I know that
cumulative engine vibration tends to gradually knock the idle screw and fuel
mixture out of sync causing a rough engine that has to be fine tuned from
time to time. Pop the hood, adjust, done. I think these same vibrations
have affected a setting in the 3-part throttle linkage and all that's
required is a simple readjustment. The throttle lever has a fairly sluggish
resistance. It's not easy to finesse it through idle into forward or
reverse without causing a lurch in one direction even at zero knot.

KT


Yes, mine's a Mercruiser with an Alpha 1 outdrive, but it's a 1997. Maybe
times have changed.

Quicksilver shift cable engine cutout dilemma
 

"JR North" wrote in message
.. .
http://www.seanet.com/~jasonrnorth/shift1.html
JR

Kilgore Trout wrote:
This topic may have been done to death already, apologies for this
repeat.


I've got a Mercruiser 130hp carburated 4.0L 4-cyl inboard with the
Quicksilver shift cable system. When switching between forward and
reverse the shifter is supposed to be stopped in idle for a brief moment
before changing intp gear. Every so often when I do this the engine cuts
right out as the shifter goes into idle. This happens when docking or
embarking, often after a 10m lake haul, causing a mad scramble to restart
the engine and avoid collision with docks, shorelines and other boats.
Except the only way to prevent further stalls is to ram the shifter
through the idle without stopping, and not good for the drive. I know
that the shift system intentionally cuts the ignition spark for a
millisecond to protect the cables and drive gears from damage by a cutout
switch on the switch plate, and that there's a lower cable to the
sterndrive and another between the shift box and shift plate.

I don't know if I should pull the tools and try to fine tune the settings
and risk overlooking a critical tweak, discovery this fact floating
toward a parked Glastron at 10 knots, or take it to the marina?

I've gotten nowhere with this marina on this matter though, and I know
that the mechanic knows what the problem is. They just want me to come
crawling on hands on knees with a wad of dough.


KT


--
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Home Page: http://www.seanet.com/~jasonrnorth

Great page. Appreciate it.

KT