Volva Penta AQ 130 Motor Back Carburatior does not let Engine Idle
Make (of engine): Volvo Penta
Model (of engine): AO 130/270
they only way i can lower Engine RPM From 2000 is to pull on Back Carburator Rod that controls Gasoline or down Can get RPM From 2000 to 1000
Hi, my name is Kerry
There is an adjustable link between the carburetors.
It sonds like the adjustment is off and one carburetor is loaded open
They need to be adjusted so both idle stops are the same, then they need to start opening at exactly the same time.
Yes do I get this done
There is a little finger on one carb linkage that fits into a slot on the other carb. There is a screw that clamps the linkage in place on the throttle shaft, you loosen the screw and turn the linkage so it's just touching the other one.
Set the idle stops so that the throttle plate is just cracked and the same on both carbs. Then adjust the linkage so that they both start opening at the same time.
How do i get to these screws? Pull off upper Intake manafold ? and look down Carbs?
No, I'll look for a parts diagram
number 32 in the diagram is the slot that the finger fits into. The part with the finger is on the carb that isn't shown
I think I had the wrong carb there
Is this one right?
that is a very long Address I still think i can pull intake manifold and see for the parts .Am i supposed to look up the Adress?
Just copy and paste it into the browser
It's a link to a parts diagram
Can i call You on Phone?
The site doesn't allow it
There are a few different AQ130s and they have different carbs
It sure cost a lot of Money to talk and get advice these days
The last link is for the AQ130A and B
Yes it sure does
The AQ130C has a different carb
this Model is 270 D
Is that AQ270D ?
That is what my Book that came with the Boat says
Is this a 4 cylinder engine?
or a v-8
Yes it is 4 cylinder
Okay, the drive is a 270 and the engine is probably a 130 but the suffix for the engine model?
There is also a 130D, similar to the 130C
The D and C models look like this
You are right am looking at book on these motors
book says 130 c (USA)
So I had the right carb the first time, the link between the carbs is adjustable and it sounds like something is keeping the back carb from cosing all the way.
closing all the way.
That is why i am talking to you !
Are you still there?
Just looked in a manual to refresh my memory, you have a rod between the carburetors where the throttle cable connects.
On the ends of the rod, there is a finger that goes in the notch on the carb.
The ends are adjustable,
Back out the idle stop screws so that the throttle plates close completely. When both carbs are shut, adjust the linkages so the open at the same time.
Then set up the idle stop screws so it idles. Both screws need to be set the same, turn in until it contacts throttle linkage and count turns from there so both are the same
is that on the rod between Carbs? What linkages the one coming from Main throttle
Yes the rod between the carbs
The linkage consists of the rod, the ends on the rod and the parts on the carburetor that connect with the rod
Ok I think something is wrong With linkage coming from main throttle
From the control?
Yes but i do not know for sure
The ends of the rod can rotate on the rod when you loosen the screw.
A problem with the control can't make only one carb stay open, the problem must be at the carb linkage
I tried to get boat to a shop to get this fixed but it will be a month before i can get it in shopi
Ok i will see what i can do with tomorrow
A manual might be a worthwhile investment,
how do i get one
You might be able to get a download, if not try a marine store
ok thanks bye
24 yrs exp. Inboard/Outboard mechanic Mercury/ Mercruiser, Volvo Penta and OMC, Johnson/Evin.