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Mercruiser 165hp Alpha One Outdrive 19' 1975 formula thunderbird
I have the engine running pretty good as of today. It is running very
rich. Keep me in mind if anyone finds a 2bbl carb for the chevy gm250
motor (1975).My next question is the up and down relay are not responding after the
storm (along with the starter relay). The outdrive is up. The relay
clicks only when the buttons are pushed to raise the unit. The buttons
for lowering do nothing. No click or anything. My wires look fine and
they are snug an all the connections. The mercruiser manual I have
shows two 20 amp glass fuses and one larger relay type fuse. I find
none of these in the harness by the engine. The one under the dash
board at the button controls is also not present. How can i get the outdrive down to take the boat out of the water ? It
is about a 15 minute ride to the boat ramp. The boat is easier to
control with the engine down. Thanks in advance again. Sonofadocker. |
sonofadocker
Sep 10
2006
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| Just to confirm, there is one or two lines from your tilt/trim pump
that go under the engine and out the lower area of the outdrive. You
disconnected these from the tilt/trim pump and the outdrive is still
stuck up? Bummer. Yes, the drive position is controlled by those two pistons, one on each
side of the drive. You can disconnect them at the end and the outdrive
will lower. You just have to disconnect the outside end of the
cylinder, above the prop. You can try one at a time and see if you can
get the cylinder to close by pushing on it. Normally if the line is
disconnected from the tilt/trim pump you can close the cylinder by
hand. The fluid will squirt out the disconnected line. The only explanation I have for what you are seeing is that one or the
other or both of those cylinders is frozen. All this worked ok before the storm? When was the last time you used
this boat?
sonofadocker wrote: |
jamesgangnc
Sep 12
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| Once upon a time I had issues with the trim, sorry memory is foggy but there
are a couple of solenoids on the pump unit. You can jump them to figure out
which one is up and which one is down. Once figure out where your problem
is, TAP not beat, the snot out of it with a hammer, you may loosen up the
solenoid. |
gorf
Sep 11
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| Make sure your choke is opening all the way up. That is one common
cause for rich running. Another cause is a stuck float. Some of those
carbs you can just take the top off without removing the carb. You
might have a piece of crud stuck in the float valve. Be careful of you
take the carb apart, you don't want to drop any little parts down the
intake. I believe those smaller fuses are in holders around the tilt/trim pump.
You can jump one of those relays to see if the pump motor is working.
Basically they just activate the pump motor. It draws too much current
for the switch on the shifter to power directly. You can disconnect
the hydralic lines and then move the outdrive by hand but it makes a
huge mess because hydralic fluid will come out the lines. And the
outdrive is heavy. Once you do this you will have to tie it up to get
it out of the water. You should not run the engine much above an idle with the drive tilted
up. The u-joints are not designed to take that much torque. They will
prematurely fail. That's along haul to the ramp to do at idle. But if the drive is
tilted up you should just idle. sonofadocker wrote: |
jamesgangnc
Sep 11
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