Recognise this shifter? And other problems...

[bobuk]

Hi Guys,

Twin Mercruiser 4.3 L/X 1988 RWC engines

I've been plagued by stiff controls, the shift cables and control cables have been replaced which has greatly improved the problem. I think the remaining resistance lies in the shifter so i need to either service it or replace it. Does anyone know where i can get this info (see pic)? Also I need to do some final adjustment on the cables as the drives are clonking into gear, and i have one of those crap manuals, so is the mercruiser service manual a good purchase or is there some online info that will cover control cable adjustment for this engine?

Engine running temp problems

When cruising one of my engines has no gauge temperature reading and the other is getting to hot, i grounded the sensor wires and obtained full scale on the temp gauges. I pulled the thermostat housings and found one of the spring loaded balls had jammed in its holes and the other stat had corroded holes around its edge i'm hoping these were the problems but will check all sendors prior to re installing. My question is, the thermostats are held in by brass collars, these look like they are going to be fun to remove, any tips or is it just perceference?

Thanks Guys Bob

 

[Haut Medoc]

Re: Recognise this shifter? And other problems...

http://www.boatfix.com/merc/Servmanl/6/6covr3.pdf
See if this helps.......
Esp. section 1....
Also read AChris's post in the FAQ section.....
Make sure the pivot points are well oiled on the shift plates.....​

 

[bobuk]

Re: Recognise this shifter? And other problems...

Thanks for the link, is this the manuals i need or should this give me access to the info. At the moment i can only see an index?

Cheers Bob

 

[Don S]

Re: Recognise this shifter? And other problems...

I've been plagued by stiff controls, the shift cables and control cables have been replaced which has greatly improved the problem. I think the remaining resistance lies in the shifter so i need to either service it or replace it.

Make sure the cables are not tied down tight about 2 feet from where the cables go into the control. The cables have to be able to swing back and forth. If not they will bind the shifter. There is also a tension adjustment on the control, and may be under the handle.

Also I need to do some final adjustment on the cables as the drives are clonking into gear

It's normal for an Alpha drive to "Clonk" into gear. They have a dog clutch. Make sure the engine idle rpm is set properly to minimize the noise.
Haut gave you the link, go to the index and run your cursor over the different sections to find the links (watch the cursor change).

 

[bobuk]

Re: Recognise this shifter? And other problems...

Don,

thanks for your time much appreciated

Bob