Hisun vector 500 won’t start

[Dumbfounded]

Also as cam picture shows, the left cam lock appears not to be in phase with the right one.

[kenfain]

1 hour ago, Dumbfounded said:

Also as cam picture shows, the left cam lock appears not to be in phase with the right one.

Looks a bit bent too. Is that peening on the hook on the left in that first picture ?

[Dumbfounded]

Yes, it's nipped. Ran my finger on it and feels sharp as if forced out. Can't seem to pull inner part of sprocket out of harmonic shaft to reveal chain sprocket. . See pic.

[Dumbfounded]

Ok, took a pic behind sprocket and appears that chain jumped off gear sprocket. 

[Savage3]

Good job, ya found the problem. Take a good look at the tensioner when you put chain back on. They often melt! 

[Dumbfounded]

Plan on replacing both chains (other being the oil pump) cam lock phaser and tensioner. But first have to remove valve cover to check for any further damage.  Hoping valve's are not damaged. 

[Savage3]

Awesome! Sounds like a plan!

Hopefully, the valves are ok. Sometimes they survive without any damage.

Good luck!

[Dumbfounded]

Ok, sad news is I removed head and it turn out it is one complete sealed unit. Found one on line for $400. Tried turning the cam to see if valves open and close but to no avail. 1/4 turn on cam phaser in each direction but not any further. 

[Dumbfounded]

Surprisingly found this on Amazon but not sure to trust parts from there. Contacted Hisun service in McKinney Texas but yet to get a reply..

[Savage3]

Do you have the service manual? I've had a few of those engines apart. Not a 500, but, a 550 and 700.

[Savage3]

[Savage3]

[Savage3]

I received no response from "Hisun" in TX. Take a close look at the facility online.

 

 

[Savage3]

I received no response from "Hisun" in TX. Take a close look at the facility online.

 

 

[Dumbfounded]

Yes, I downloaded it via internet purchase. 

[Savage3]

I ended up ordering parts through Amazon. Sorry for double post, was having issues with phone.

 

[Dumbfounded]

I was able to talk with service tech. They don't sell parts to consumers but gave me the part numbers for the cam sprocket with gears then ordered the chain and sprocket assembly for under $60. 

[Savage3]

Now that sounds more like it!

[Dumbfounded]

Okay, what am I missing.  Can't seem to get the flywheel back into the stater coils housing.  Is there a trick to it?

[kenfain]

That's a lot of stuff under that cover. Seems likely that at least a couple, and probably most of those parts would have to nest together, with one inside the other. Maybe you missed one, requiring it to be indexed, and it's not fully seated?

[motojoe]

If you got spark and fuel and assuming that the timing hasn't changed it appears to me that you have a exhaust valve too tight, adjust the valves.  If you have tight valves an engine has a hard time starting and yes when it is running you will get popping.  When you take of the valve cover you can check the timing as well but my guess is that your valves have tighten up.