Throttle cable

[WHX?? 51,701]

Yep that is the flag tapping against the gov gear. Sounds right to me. I don't think you have a guv problem at all. You have the correct swing of the shaft. Just not assembling it right. 

[1968Commando 163]

22 minutes ago, WHX?? said:

Yep that is the flag tapping against the gov gear. Sounds right to me. I don't think you have a guv problem at all. You have the correct swing of the shaft. Just not assembling it right. 

No  no the shaft it only slightly turns not even a quarter turn maybe tenth of a revolution 

[Achto 29,372]

9 hours ago, 1968Commando said:

No  no the shaft it only slightly turns not even a quarter turn maybe tenth of a revolution 

 

That is exactly correct and how it should be. 

 

Here is what goes on inside your engine.  The pics below show the governor that is inside your engine. The cam shaft gear makes this part spin, high speed forces the 2 L shaped fly weights out word, this forces the pin in the middle to push out. Not a whole lot of movement. If the engine is not running, this part does nothing.

 

Picture A shows the fly weights in position as though the engine was running and forcing the weights out.

 

A

 

Picture B shows the weights retracted as if the engine is not running or the throttle spring tension on the governor shaft is holding the pin in the center down.

  B

 

In the diagram below the above pictured governor is part #17. The pin in the middle of the governor #17 pushes against the flag on the governor shaft #15 inside the engine. This motion rotates the governor arm clock wise to push the throttle close to slow down the engine. When you pull the throttle open and rotate the throttle wheel #12 this applies more spring pressure on the end of the governor pin on part #17. More pressure makes it so that #17 will have to spin faster in order for the fly weights to move out and slow the engine down. This balancing act between the spring on the throttle wheel and the fly weights on the governor is what determines your engine speed.

 

 

 

Put every thing back together as I explained in my earlier post or better yet follow the instructions in manual that @WHX?? posted a link to. When it is together take a video showing what happens when you move the throttle in and out using the throttle cable as normal please.

 

 

 

 

 

Edited May 13 by Achto

[1968Commando 163]

26 minutes ago, Achto said:

 

That is exactly correct and how it should be. 

 

Here is what goes on inside your engine.  The pics below show the governor that is inside your engine. The cam shaft gear makes this part spin, high speed forces the 2 L shaped fly weights out word, this forces the pin in the middle to push out. Not a whole lot of movement. If the engine is not running, this part does nothing.

 

Picture A shows the fly weights in position as though the engine was running and forcing the weights out.

 

A

 

Picture B shows the weights retracted as if the engine is not running or the throttle spring tension on the governor shaft is holding the pin in the center down.

  B

 

In the diagram below the above pictured governor is part #17. The pin in the middle of the governor #17 pushes against the flag on the governor shaft #15 inside the engine. This motion rotates the governor arm clock wise to push the throttle close to slow down the engine. When you pull the throttle open and rotate the throttle wheel #12 this applies more spring pressure on the end of the governor pin on part #17. More pressure makes it so that #17 will have to spin faster in order for the fly weights to move out and slow the engine down. This balancing act between the spring on the throttle wheel and the fly weights on the governor is what determines your engine speed.

 

 

 

Put every thing back together as I explained in my earlier post or better yet follow the instructions in manual that @WHX?? posted a link to. When it is together take a video showing what happens when you move the throttle in and out using the throttle cable as normal please.

 

 

 

 

 

Ok thank you, so it turns out my governor isn’t broken then I guess. I will get that done tonight and send a video 

Edited May 13 by 1968Commando

[Handy Don 13,980]

13 hours ago, WHX?? said:

It was mentioned before straiten out the goofy hook on the cable and put a Z bend on the end. special pliers are available to do this. 

Check them out HERE

I suspect that the RC control linkage wires are a good bit lighter gauge than throttle/choke cables but those pliers do look pretty stout.

[1968Commando 163]

@Achto @WHX?? ok so just double checking I don’t want to be anoying sorry just don’t want to waste my time by trying to fix somthing that won’t actually fix my problem but anyways so the governor shaft does not move very much unless the motor is running correct? It won’t let me post the video but it is barley moving 

[1968Commando 163]

22 hours ago, WHX?? said:

it should be able to rotate clockwise and counter clock wise about 10 degrees or so.

I doubt mine rotates 10 it rotates like maybe 3 degrees 

[Achto 29,372]

7 minutes ago, 1968Commando said:

I doubt mine rotates 10 it rotates like maybe 3 degrees 

 

25 minutes ago, 1968Commando said:

the governor shaft does not move very much unless the motor is running correct?

 

A little rotation on the shaft is a lot of rotation at the governor arm. Your want your shaft to be at full counter clock wise rotation with the throttle wide open. Set the governor arm as posted. After it is tight move it clock wise & the carb butter fly should be closed against the idle screw. This is all the movement you need, the rotation does not increase with the engine running.

Edited May 14 by Achto

[1968Commando 163]

Just now, Achto said:

 

 

A little rotation on the shaft is a lot of rotation at the governor arm. Your want your shaft to be at full counter clock wise rotation with the throttle wide open. Set the governor arm as posted. After it is tight move it clock wise & the carb butter fly should be close against the idle screw. This all the movement you need, the rotation does not increase with the engine running.

Ok thank you, sorry this is such a long dragged on thing I rebuilt this motor and I swear the shaft moved more but maybe I’m going crazy or somthing 

[1968Commando 163]

2 minutes ago, Achto said:

 

 

A little rotation on the shaft is a lot of rotation at the governor arm. Your want your shaft to be at full counter clock wise rotation with the throttle wide open. Set the governor arm as posted. After it is tight move it clock wise & the carb butter fly should be close against the idle screw. This all the movement you need, the rotation does not increase with the engine running.

Ok the arm looks like this now 

[1968Commando 163]

Just now, 1968Commando said:

Ok the arm looks like this now 

Now the arm moves 10 degrees or so 

[Achto 29,372]

76878633965__10CA8430-DCF9-401D-9AAD-C268B0EEA49B.MOV

 

In this video that you posted earlier you had more that enough movement.

[Achto 29,372]

Throttle wide open.

 

Throttle closed at idle.

 

The very top of the governor arm only moves about 3/4" to make this happen.

Edited May 14 by Achto

[1968Commando 163]

27 minutes ago, Achto said:

Throttle wide open.

 

Throttle closed at idle.

 

The very top of the governor arm only moves about 3/4" to make this happen.

Here is what I am having  

Edited May 14 by 1968Commando

[1968Commando 163]

30 minutes ago, Achto said:

Throttle wide open.

 

Throttle closed at idle.

 

The very top of the governor arm only moves about 3/4" to make this happen.

Mine now goes to fill throttle but not all the way to idle 

[Achto 29,372]

3 minutes ago, 1968Commando said:

Mine now goes to fill throttle but not all the way to idle 

 

Recheck check your governor arm & shaft adjustment. The shaft has to be full counter clock wise when the throttle is wide open.

[1968Commando 163]

2 minutes ago, Achto said:

 

Recheck check your governor arm & shaft adjustment. The shaft has to be full counter clock wise when the throttle is wide open.

Man this thing is a dang pain I’ve readjusted it 3 times and every time I get just a little bit closer 

Edited May 14 by 1968Commando

[1968Commando 163]

4 minutes ago, Achto said:

 

Recheck check your governor arm & shaft adjustment. The shaft has to be full counter clock wise when the throttle is wide open.

The governor arm is supposed to spring away from the carb when I push it towards the carb correct?

 

Edited May 14 by 1968Commando

[Achto 29,372]

Just now, 1968Commando said:

The governor arm is supposed to spring away from the carb when I push it towards the carb correct?

 

Yes it will. If you have the throttle cable pulled out, it will take more pressure to move it towards the carb.

[1968Commando 163]

Just now, Achto said:

 

Yes it will. If you have the throttle cable pulled out, it will take more pressure to move it towards the carb.

Okay I think I’ve got it adjusted now just gotta make the throttle cable work 

[1968Commando 163]

1 minute ago, 1968Commando said:

Okay I think I’ve got it adjusted now just gotta make the throttle cable work 

Hooked up the throttle and absolutely nothing works again

[Achto 29,372]

The spring on the governor wheel is trying to hold the carb wide open. When the engine is running the governor inside the engine is trying to close the throttle.

[Achto 29,372]

1 minute ago, 1968Commando said:

Hooked up the throttle and absolutely nothing works again

 

Can you move the governor arm with your finger to open & close the throttle?

[1968Commando 163]

1 minute ago, Achto said:

 

Can you move the governor arm with your finger to open & close the throttle?

Yes and wait I think I found it out the governor disc has a tab and it was hitting the thing that holds the cable preventing it from letting the throttle move

 

[1968Commando 163]

@Achto I got my governor working good will test run tonight I had to get pliers and clamp down on the clamp that hold the throttle cable sleeve I think I’m going to get a new clamp as it isn’t really holding the cable securely are those like a specific part or can I just use any clamp like that?