Thwaites duper throttle

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Goggo
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Thwaites duper throttle

Post #1 by Goggo » Sun May 03, 2020 1:09 pm

Good day everyone
I have over the last few weeks been getting the dumper back to life the drive chain is now free apart from a couple of links (diesel and only engine oil freed it off) and have the new fuel system fitted it started up on the second attempt and now fires up on the first crank , however I do have a problem I cannot see how the throttle connects (I have been controlling the speed by hand at the moment) I have included a couple of pictures showing what I have but could some kind soul show me what should be there

many thanks

Nicholas
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Topic author
Goggo
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Re: Thwaites duper throttle

Post #2 by Goggo » Sun May 03, 2020 1:10 pm

sorry about the multiple pics!


Jeremy Rowland
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Re: Thwaites duper throttle

Post #3 by Jeremy Rowland » Sun May 03, 2020 1:28 pm

Hi Nic, I have no idea but my best guess would be that a connection would have been made at the other lever which has a piece sticking out for a connection to be made to it.
Would I be correct in saying that if you pull that lever towards the left of the photo then you would be revving the engine? Just having another look I can see a ball joint on the lower part of the same lever, that should be your connection point.
Hope that sheds a bit of light on things for you.

Jeremy


cobbadog
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Re: Thwaites duper throttle

Post #4 by cobbadog » Sun May 03, 2020 1:38 pm

I agree with Jeremy, good spotting fella.
Cheers Cobba


essexpete
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Re: Thwaites duper throttle

Post #5 by essexpete » Sun May 03, 2020 2:58 pm

Spot on Jeremy. The throttle has to work from that end or risk interference with the governor.


Topic author
Goggo
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Re: Thwaites duper throttle

Post #6 by Goggo » Sun May 03, 2020 3:15 pm

hi Jeremy
yes the ball joint is the connection point thats ok the problem is as you press the throttle the lever as you say pushes it over and revs the engine problem is the lever that it uses against does not return to a centre point so therefore the engine is at full throttle the bar that passes on the left has nothing on the end to return the lever to a lower speed

best regards

Nicholas


essexpete
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Re: Thwaites duper throttle

Post #7 by essexpete » Sun May 03, 2020 3:28 pm

Can you video what you mean?


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Goggo
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Re: Thwaites duper throttle

Post #8 by Goggo » Sun May 03, 2020 8:12 pm

I will try to add a video tomorrow

Cheers


Jeremy Rowland
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Re: Thwaites duper throttle

Post #9 by Jeremy Rowland » Sun May 03, 2020 9:11 pm

Nic, my best guess as to what you are implying is that the throttle return spring (which is not the one in the photo) is broken and missing.
Hope that helps.

Jeremy


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Re: Thwaites duper throttle

Post #10 by oldtime » Sun May 03, 2020 9:14 pm

Will take a picture for you it connects to that crank thing at about your wrist .


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