Quantcast
Jump to content


2012 Bennche Bighorn 700x - Advice needed


Recommended Posts

I recently bought a 2012 Bennche Bighorn 700x (Hisun 700 motor). It was worth the money, & was a "little rough around the edges," but I've been getting it fixed up (winch, tires, cv boots, etc). It ran fine, until recently on a trip with the family..... probably 15mph on a logging road, and it simply died. In diagnosing; it's getting fuel and spark, & I don't have a compression tester, yet. I removed the two round covers (timing chain/mark access) and rotate the motor by hand, which seems extremely easy.  When rotating the motor, the cam/timing chain does not move.

Broken timing chain, or could it be a key sheared off on the gear on the crank?

Since I expect this to be a relatively major teardown; what else would you recommend replacing while it's torn apart? Cylinder? Piston/rings?

Thanks in advance for any/all advice!

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Similar Topics

    • By Xov
      Just received delivery of a 2024 AMP Pro.  Thought I'd start a thread with my impressions as I use it and learn more.  There doesn't seem to be a whole lot of real-world usage information out there on this model.  Hope this will help others as they research.
      Intended Use Cases
      Fire mitigation / slash removal from a 5 acre forested and well-gamble-oaked property.  The previous owners thought as much about fire mitigation as I do about fashion: not much. Snow removal Stump pulling General hauling (rock, lumber, etc.) Weimaraner energy depletion.  Wasn't an original use case, but a nice added bonus.  Experiences So Far
      Wasn't impressed that two of the bumpers on the underside of the bed where it sits upon the frame were missing.  The metal on metal contact has damaged the powder coating and the frame.  I expect a little better QC.
      I've only put a few hours on it, so not a ton to report on usage.  It isn't quiet; it's silent.  I can't even detect an electric note from the motor. I removed (and subsequently replaced) the motor cover noticed that the motor is German and made by Schambuller.  The motor controller is Italian and made by Dana TM4.  Given the operating specs of both I found on the web, I suspect both are higher quality than the previous Navitas (which is supposed to be decent).  The motor is rated at 25 hp and 71.5 lb-ft of torque.  It feels very powerful.  All the torque is delivered instantly, if desired.
      The bed is huge and has an electric dump as standard.  Great feature but would like it to go up a bit more.  Probably not feasible from an engineering perspective, but I want and I need ;).
      Power steering is nice, but vague.  Probably common to many UTVs, but I am accustomed to more direct results from input.  Plan early and plan often.
      In our first full day of usage, we hauled about 1/2 as much slash as the entire rest of the year when I was doing it by hand cart.  I may get fatter, but I'll also get more done.  After a few days of usage, the battery meter has gone down by 1/10th. 
      Until next time...


    • By amiracle40995
      I’m getting a 700-7 every startup. I’m having to change the plug every 100 miles on 93 octane gas. I got a lower numbered plug that is supposed to burn hotter. I’m wondering why that comes up every time I start it and if it’s related? I included a picture of the code or whatever it is. I haven’t seen the code in the owners manual or the hisun shop manual I have. 

    • By didgeridoo
      Hello, All!  I've decided to replace the traction batteries in my 2018 Sector E1 with a 48V Lithium set. They may be expensive, but I figure the Discovery Dry Cell are, too. I am not looking for the max driving range, as I have never received near the brochured range to begin with, but a good mix of charge/ get work done/ charge is what I am expecting.
      I have settled on the 48V EAGL kit from bigbattery dot com. Each battery pack provides 30Ah. The kit ships with a charger, as well. The packs would be physically connected in parallel (using a busbar) to one another, maintaining the 48V voltage, but together would be able to provide the amp draw the buggy pulls when going up hill or towing a rake (rated 320 max continuous Amps). This is in comparison to the serial connection the eight 6V lead batteries. Each of the EAGL batteries looks to have its own BMS; am I correct in thinking I will have to use their included charger rather than (simply) changing the onboard charger to lithium mode? The chemistry of the pack is LiFe PO4, for what it's worth.  I haven't torn anything apart yet (to diagram), so  I am not sure how the dash will interpret the AMP draw, but the kit I am looking at includes a dash mounted charge indicator.
      If anyone has completed a similar conversion, do you have any tips? Specifically, how did you remove the original batteries, and how did you secure the new ones? I am guessing that almost any change from the stock batteries would involve at least some modifications. Any tips would be appreciated, especially things I may have failed to consider. Thanks!
    • By Will Sutton
      I've got a 2023 UT400 (bought from tractor supply) and I've been beating my head against a wall with it.
      It will start and idle perfectly. The second I touch the throttle it sputters and dies.
      I've checked that the fuel pump is working  (it is).
      I've replaced the injector, throttle position sensor, O2 sensor, and intake air sensor. All with no change.
       
      I've just taken a look a the schematic, and there is a crank position sensor as well.

      Could this be the source of my troubles? If so, where is this thing located? I can't seem to find it on any drawings from the parts suppliers.
    • By redneckred
      Can anyone tell me how to get the engine codes to display on a 2012 Bennche Bighorn 700X?  I played with the gauges once and lucked up on this but can't remember what I did.  Will the codes automatically display if there is a code or do you have to cycle through the display?
×
×
  • Create New...