shifting problem

[oldblumerc]

i have a 74 merc 140 with a pre alpha drive unit,and im haveing problems with the shifting. i goes into gear ok but it is VERY hard to pull out of gear anyone know a poss. reason for this?

 

[Trent]

Re: shifting problem

Shift interrupt switch must not be working.

 

[f_inscreenname]

Re: shifting problem

What Trent said.

 

[oldblumerc]

Re: shifting problem

thx for the info ill look into that and see what happens.

 

[achris]

Re: shifting problem

As above. Get it fixed before you break something expensive.

 

[oldblumerc]

Re: shifting problem

hmm the manual dosent mention anything about a shift interupt switch. you dont mean the neutral safety switch, right?

 

[achris]

Re: shifting problem

The netrual sw is in the control box. the Shift interrupter switch is on a plate bolted to the inner transom plate. It's where the 2 shift cable 'come together'. The cable from the control box moves a lever with the top end of the lower shift cable connected to it. There should be a, heck a picture's worth a thousand words. Check this :<br /><br />

 

[oldblumerc]

Re: shifting problem

sweet thanks ill look into that right away. so if i have the motor running and i push that switch in it should stall, right?

 

[achris]

Re: shifting problem

Hey, you're good! Spot on. <br /><br />You'll also notice that it should only 'stall' the engine when coming out of gear, NEVER going into gear.

 

[Ralph 123]

Re: shifting problem

This should help:<br /><br /> http://www.mercstuff.com/noneutral.htm

 

[oldblumerc]

Re: shifting problem

woo hoo success the switch was the problem, sort of, a couple of the connections are lose so i'll just clean them up and tighten them down and call it good. <br /><br />thanks for your help guys

 

[oldblumerc]

Re: shifting problem

hmm another issue the screw that is holdong the connection together is rusted solid and i cant get it out. Do those two wires that come together need to be grounded or can i just splice them together and for get about the screw holding them down?

 

[achris]

Re: shifting problem

Oh dear! We're on the mis-information train again.... Vinney, where are you when we need you?<br /><br />The procedure outlined at the "noneutral" site is WRONG!!!! DO NOT follow it!!! Briefly the correct procedure is as follows:<br /><br />1. Remove both the shift cable (to leg) and the control cable (from control box) from the shift plate.<br />2. Push in on the end of the cable and have someone turn the prop slowly Counter clockwise at the same time. When the prop stops the unit is in Forward gear.<br />3. Adjust the brass barrel until the distance between the centre line of the brass barrel and the cable end guide mounting hole is EXACTLY 6 inches.<br />4. Re-install the shift cable onto the shift plate. DO NOT change this adjustment again.<br />5. With the control lever at full throttle in forward adjust the brass barrel to line up with the guides on the plate. DO NOT install the cable at this point.<br />6. Turn the brass barrel AWAY from the cable end guide 4 turns. Install the cable on the shift plate.<br />7. Move the control lever to the full reverse position, as the helper turns the prop slowly clockwise unitl it stops.<br />8. Check the shift cutout switch roller position. If is has moved from the centre position, adjust the brass barrel on the control cable, one turn at a time (maximum 4 turns) until the roller is in the centre position.<br />9. secure the cables with the nylok nuts. DO NOT tighten them onto the barrels.<br /><br />Chris.........