Quantcast
Jump to content


Recommended Posts

Posted

I bought a project UTV. 2010 Hisun 700. I'm doing a top end rebuild. The prior owner did some shady stuff to this poor thing. It's got a knock and blown head gasket. Piston is gouged and 3/5 bent valves. Standard stuff if you dont know how to take care of your equipment. But while doing disassembly there is a nipple on the back side of the head, just under the exaust rocker arm peep holes. The guy has a rubber hose clamped to it and pinched it off on the other end with a vice grips left undet the seat. I can't find where this is supposed to attach to. The manual shows it capped on the head in the new models and doesnt address it at all on the old models. Any input? 

Posted
4 minutes ago, Dan H 965 said:

I bought a project UTV. 2010 Hisun 700. I'm doing a top end rebuild. The prior owner did some shady stuff to this poor thing. It's got a knock and blown head gasket. Piston is gouged and 3/5 bent valves. Standard stuff if you dont know how to take care of your equipment. But while doing disassembly there is a nipple on the back side of the head, just under the exaust rocker arm peep holes. The guy has a rubber hose clamped to it and pinched it off on the other end with a vice grips left undet the seat. I can't find where this is supposed to attach to. The manual shows it capped on the head in the new models and doesnt address it at all on the old models. Any input? 

20221014_205219.thumb.jpg.537337d0a88bfc8254ef2f4123403d5c.jpg

  • 8 months later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Similar Topics

    • By Ductking1
      I recently purchased a 2024 Hisun 550 Sector from Kreps Service Station and am having issues with the gear selector, I am doing as instructed in the owners manual but the shifter acts like it is binding or the button lock isn't releasing, the shifter will not move, I have to wiggle it back and forth while pushing hard on the brake and if it's in park or reverse it's nearly impossible to get it to move, I contacted Justin Krep and he says this is normal with these machines, I find that hard to believe, I've owned many utvs and side x sides and have never had this kind of issue with any of them, any help with this problem would be greatly appreciated.
    • By hisun junk
      As I tried to do a conversion with the Yamaha 660 motor, I realized the 660 was never fuel injected so it would not work for the fuel injected hisun motor swap. But the good thing is the hisun 750 motor is a clone of the 660 Yamaha but with the components for the fuel injection (cam/crank position sensor). So that left me with a new rebuilt Yamaha 660 and still a broke 750 hisun motor. I took apart 750 think the timing chain had broke from all that I've heard about these motors. The chain was not broke, but just off cam and crank gears! The chain tensioner was at fault!  I've ordered Yamaha 660 replacement parts, chain, two exhaust valves (which got bent when chain came off while motor was spinning) and seals. The piston has 2 little nicks where it had hit valves but no damage otherwise. The head is being redone at the machine shop and I'll be putting it back together in the next couple of weeks. Also I finally tracked down a Service Manual with all the info on the 550/750 Challenger.

    • By Poppateets
      I just purchased a used 2023 Massimo warrior UTV SxS 1000mx with 600 miles on it. I didn't even get a full day of riding and the driver's side rear axle broke. I'm pretty sure it was already going bad because we would hear a noise once in a while. I'm wondering if anyone else has had problems with theirs. Also looking for places to buy accessories.
    • By Justine
      I've had a Hisun Vector E1 for just a bit longer than is required for me to do some maintenance. While it's well-overdue, it only drives 1.5km a few times each week on a fairly decent gravel road (to the letterbox), and it has worked really well right from the get-go.
      Looking at the manual it states that I need to use SAE80 API GL-4 Hypoid Gear Oil for the Main gear Case, and SAE80 API GL-5 Hypoid Gear Oil for the Front gear Case - unfortunately i can't find either of those online here in Australia. Plenty of options that look close, but, as someone who has never driven any vehicle before, I want to use the right thing and it's a tad confusing.
      My question: Since there are no oils that are bang on SAE80 (they all seem to cover a range) would Liqui Moly Hypoid GL4 Gear Oil 80W-90  & Motorex Hypoid GL-5 Gear Oil 80W90 - be ok to use? (Or any other suggestions of what I might be able to purchase online in Australia) And would I have to drain out any existing oil from both gear cases?
      This is a whole new world for me and  being able to find exactly what is specified in the manual hasn't made this easy!
    • By A P
      Hi
      I have a 2022 hisun sector eps 550. 30amp fuse is blown for eps. Checked the motor and it’s fine. Opened up the controller and found a bad diode. Dealer wanted 500$ for the controller. Just posting this in case it helps someone. I couldn’t read numbers from the old one so just took a guess and replaced it with a 100v 3amp diode. 
×
×
  • Create New...