Jump to content

Garden Tractors and Parts on eBay



Photo
- - - - -

Tecumseh throttle backs off full throttle on its own


  • Please log in to reply
9 replies to this topic

#1 bread320i OFFLINE  

bread320i
  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 416
  • 612 Thanks
  • 1,223 posts
  • Location: Richfield Wisconsin

Posted November 22, 2011 - 04:29 PM

My Ariens snowblower has a Tecumseh HH100 engine. Engine runs pretty good, except the throttle likes to back off on its own. It back off slowly to about 1/2 - 3/4 throttle. It didnt do this last year, and this year I took the carb apart for a cleaning.

What did I do?

#2 JDBrian OFFLINE  

JDBrian

    Super Moderator

  • Super Moderator
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 2507
  • 9,596 Thanks
  • 14,140 posts
  • Location: Hubley, Nova Scotia - Canada

Posted November 22, 2011 - 05:20 PM

There is normally friction in the throttle control that holds it in position. If there is wear in the control or it is loose then it can slip back on you. I have an old tiller with a 3hp B&S that does the same thing. I just attached a spring to it that keeps it pulled WO. At some point I'll probably install a new control to solve the problem properly.

#3 olcowhand ONLINE  

olcowhand

    Red Tractor Nut & Diesel Addict

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Sponsor
  • Contributor
  • Member No: 20
  • 38,061 Thanks
  • 30,460 posts
  • Location: South Central Kentucky

Posted November 22, 2011 - 05:33 PM

I have tightened them up by taking the throttle lever assembly off, then re-stake the rivet pin to tighten it up. Set the rivet head on an anvil or other heavy solid metal object, then use just a hammer or hammer/drift to peen the opposite end of the rivet down until you can feel it has snugged up the friction.

#4 DH1 ONLINE  

DH1

    Electric Tractors

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 62
  • 5,012 Thanks
  • 5,462 posts
  • Location: Markham Ontario Canada

Posted November 22, 2011 - 05:50 PM

I have tightened them up by taking the throttle lever assembly off, then re-stake the rivet pin to tighten it up. Set the rivet head on an anvil or other heavy solid metal object, then use just a hammer or hammer/drift to peen the opposite end of the rivet down until you can feel it has snugged up the friction.


:ditto: That's the way I do it too.

#5 MH81 OFFLINE  

MH81

    Proud to be Deplorable

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 802
  • 29,933 Thanks
  • 29,752 posts
  • Location: N. W. PA

Posted November 22, 2011 - 05:58 PM

Another :ditto: here. Had a couple I've added some friction material to, but usually, just smack 'em one.

#6 GTTinkerer OFFLINE  

GTTinkerer

    GT Tinkerer

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 1564
  • 1,162 Thanks
  • 1,331 posts
  • Location: Mancelona, MI

Posted November 22, 2011 - 07:35 PM

I have also used a pair of Vise-Grips to compress the rivet, sometimes easier to do than take it apart.

#7 olcowhand ONLINE  

olcowhand

    Red Tractor Nut & Diesel Addict

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Sponsor
  • Contributor
  • Member No: 20
  • 38,061 Thanks
  • 30,460 posts
  • Location: South Central Kentucky

Posted November 22, 2011 - 08:25 PM

I have also used a pair of Vise-Grips to compress the rivet, sometimes easier to do than take it apart.


Yep, done that too....when it works. But the hammer is in the waiting if it needs more persuading!

#8 Bruce Dorsi OFFLINE  

Bruce Dorsi

    Old, but not dead -- yet!

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 1525
  • 3,822 Thanks
  • 2,413 posts
  • Location: New Jersey

Posted November 23, 2011 - 08:57 AM

Tightening the rivet is the best way to fix the problem, as others have mentioned.

If an engine is controlled by a throttle cable, another trick is to put a slight bend (mild kink) about mid-way in the cable. ...This adds friction, and will usually overcome the problem.
  • Bolens 1000 said thank you

#9 bread320i OFFLINE  

bread320i
  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 416
  • 612 Thanks
  • 1,223 posts
  • Location: Richfield Wisconsin

Posted November 23, 2011 - 03:52 PM

Thanks everyone for the advice. Hopefully after Turkey day I'll tackle this issue

#10 olcowhand ONLINE  

olcowhand

    Red Tractor Nut & Diesel Addict

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Sponsor
  • Contributor
  • Member No: 20
  • 38,061 Thanks
  • 30,460 posts
  • Location: South Central Kentucky

Posted November 23, 2011 - 07:57 PM

Tightening the rivet is the best way to fix the problem, as others have mentioned.

If an engine is controlled by a throttle cable, another trick is to put a slight bend (mild kink) about mid-way in the cable. ...This adds friction, and will usually overcome the problem.


The only problem with this method is if the wire isn't the thicker style. If too much restriction the wire can wad up at the throttle lever. Had it happen before. If the heavy duty wire, this will work fine, but don't try it on the light duty cables.




Top