50hp blueband, impeller, stop switch and gearing

[allymoss]

Hello everyone, last thread was unrelated so here we go.

I have a 50hp blueband mercury 1979, 2 stroke, serial no. is 2948379

I have a couple of quetions if anyone could help me.

I lost the impeller key, I must have done or it was removed by someone else. I didn't ever see it, even when impeller was on drive shaft. How much do these cost in UK for an impeller kit, is there a part no. I have a manual but its not specific for some reason.

I can't find a stop switch on the engine. There is a socket on the front but the wire coming out the back has been snipped, where does this go, if you earth it, does it stop sparking???

I have removed the L/U. Now to put back on, is there a technique for this engine. Do I put both sections in forward?? How does the gear change system work in the L/U? I have tried turning the small shaft with the splines on it and can get prop shaft to go forward and reverse but no neutral.

Thanks

 

[Laddies]

Re: 50hp blueband, impeller, stop switch and gearing

Part number for the key is 28-56662 and costs $1.31 here
Yes you need to go from the Black/yellow terminal on the switch box to ground to short the ign. out.
The small splined shaft toward the front of the unit is the shift shaft I like to assm the two with both in rev. gear as there is less chance for the unit to jump by fwd. gear

 

[allymoss]

Re: 50hp blueband, impeller, stop switch and gearing

so to kill the engine I connect the balck and yellow terminal.

Thanks, I am ordering a new impeller today

 

[allymoss]

Re: 50hp blueband, impeller, stop switch and gearing

can someone tell me the part no. of the impeller please. I got a manual but it doesn;t cover my model!!

 

[Laddies]

Re: 50hp blueband, impeller, stop switch and gearing

47-89983t

 

[allymoss]

Re: 50hp blueband, impeller, stop switch and gearing

ok thanks.

anyone know about the stop switch issue?

 

[Laddies]

Re: 50hp blueband, impeller, stop switch and gearing

What issue?

 

[allymoss]

Re: 50hp blueband, impeller, stop switch and gearing

so it is connect yellow and black terminals.

does anyone know what the socket on the front does?

 

[Laddies]

Re: 50hp blueband, impeller, stop switch and gearing

1. Yes
2. Goto the BAM Marinee site and check their parts manuals to see.
3. With all this confusion you need to purchace a manual.

 

[allymoss]

Re: 50hp blueband, impeller, stop switch and gearing

thanks, the BAM marine site led me to mercruiserparts.com which has pictures of all my engine which is very useful. Thanks

I am looking for a manual but they seem really expensive from where i've looked. No one on ebay has my model in the UK...