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Anyone know what or where to find the rated torque...

Discussion in 'Mechanic and Repair' started by johnwon, Nov 11, 2006.

  1. johnwon

    johnwon LawnSite Senior Member
    Messages: 299

    I've been trying to find the torque specs. of a Briggs engine on my 5 year old riding mower. The model#445777-0129-E1 it's a Briggs 25hp intek I/C 725cc engine. I've looked on their web site and places that sell engines very close to the same model# and don't see any torque specs. listed anywhere. If any of you happen to have that info in your books please share....Thanks
  2. newz7151

    newz7151 LawnSite Silver Member
    from Tejas
    Messages: 2,419

    Hmm.. I can tell you the 2005 specs on a series 446700 which is a 26HP ELS engine. It has the cast iron sleeve as well and should be pretty close to your 25 horse. The peak torque shown is about 32.5 ft-lbs between 2400 and 2600 RPM.

    Starts at a little over 31 ft-lbs at 1800 RPMs and drops to 29ft-lbs at about 3600 RPMs.

    Hope this sort of helps.
  3. johnwon

    johnwon LawnSite Senior Member
    Messages: 299

    Thanks, I kind of suspected it was pretty low. I wonder how they can get such a big cc engine to have so little torque?? I'm just wondering out loud...you don't have to spend the time to explain that to me. That is interesting though that they are so low compared to a 675cc 25hp Kawasaki. Thanks for sharing

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