Just picked up a 2003 Arctic cat 250 runs great the guy did a top end rebuild new piston and rings but it's still smoking. The guy said he didn't do the valve seals can't this be the cause?
So I put a new top end on my 2000 Arctic Cat 300 and did everything correct except for one thing. I forgot to put the o-ring onto one of the 4 studs after putting the cylinder on between the head. My question is, how severe is this to leave it like this and run with it? I absolutely do not want to tear it all down again. Thanks for any answers/opitions you can provide regarding the missing o-ring, thanks a million
The o-ring is to seal the oil passage that sends oil up to the camshaft in the cylinder head. I have never put one together without that o-ring so I cant say if it would be a real issue or not. I believe it would still have to blow through the gasket material also in order to be a problem, and i honestly think it would have a hard time doing that since it's clamped tightly with the head bolts. You may just keep a close eye on it for a while if you decide you don't want to tear it back down. Good luck with it!
Really appreciate the response! It seems that o-ring is just an additional measure (overkill) to the already completely sealed gasket around the head stud to keep trash out of the engine since the head is cut out that uses that head nut instead of the other 3 acorn head nuts. I just started it up and broke it in for 20 minutes and it runs absolutely amazing! Thanks again for taking the time to reply to us small engine n00bs :)
Have an artic cat 250 similar to this only 40psi compression so trying to do the top end but the jug will not come off because it's hitting the ears on the timing chain guide opposite the tensioner feels like something is holding it in the bottom?
So are you saying it feels like the timing chain guide is stuck in the engine block? If so, it has kind of a slot that it fits in down there. It should just slide out as long as the timing chain isnt bound up in its way down there. Im not sure what else could be holding it really. Also, a lot of the time when these engines lose compression, its because the intake valve gets tight and is being held open. The intake valve is bad about wearing on these suzuki engines. Id replace the valve most likely while the head is off just to be safe or at least inspect it good for wear.
@@CumminsDriver that’s great to hear! I’m thinking about doing mine soon so I’ve been watching all your videos. They are very informative and helpful. Thank you for sharing. Do you have the link for the timing chain? I saw your other video were you replaced it. It’s a really good idea to do both at the same time.
This timing chain was worn out which was making it very loose. If the timing chain is in good shape and not loose like this one, you will probably have to take the two bolts out of the cam gear and remove the gear so you can get the chain off of it. Hope this helps
@@CumminsDriver I also cant and impossible to remove cam gear and camshaft together like you did in this video. The tensioner is out and even the side bolt that hold the other tensioner it out and way too tight to take out. R u saying to have to remove the 2 cam gear bolts and then remove the camshaft and then the gear will have enough slack to get out??
@@JoeSmith-sv4jn Yes, basically youll need to remove the two cam gear bolts(you may need to remove one, then spin the engine to get to the other one) and once you remove the bolts, you can slide the gear off the end of the cam and drop it down enough to get the chain walked off the gear, then pull the gear out. You'll have to reassemble it basically the same way. Bolt the cam in, then get the chain walked onto the gear, and then slide the gear back onto the end of the cam and reinstall the bolts. Hope this helps
Авто/Мото
Looking good so far. Pretty good job to pull it apart.
I love your arctic cat tool box
Thanks! I actually won that box from Arctic Cat, I really like it
Looks like another good project to me.
Just picked up a 2003 Arctic cat 250 runs great the guy did a top end rebuild new piston and rings but it's still smoking. The guy said he didn't do the valve seals can't this be the cause?
So I put a new top end on my 2000 Arctic Cat 300 and did everything correct except for one thing. I forgot to put the o-ring onto one of the 4 studs after putting the cylinder on between the head. My question is, how severe is this to leave it like this and run with it? I absolutely do not want to tear it all down again. Thanks for any answers/opitions you can provide regarding the missing o-ring, thanks a million
The o-ring is to seal the oil passage that sends oil up to the camshaft in the cylinder head. I have never put one together without that o-ring so I cant say if it would be a real issue or not. I believe it would still have to blow through the gasket material also in order to be a problem, and i honestly think it would have a hard time doing that since it's clamped tightly with the head bolts. You may just keep a close eye on it for a while if you decide you don't want to tear it back down. Good luck with it!
Really appreciate the response! It seems that o-ring is just an additional measure (overkill) to the already completely sealed gasket around the head stud to keep trash out of the engine since the head is cut out that uses that head nut instead of the other 3 acorn head nuts. I just started it up and broke it in for 20 minutes and it runs absolutely amazing! Thanks again for taking the time to reply to us small engine n00bs :)
Have an artic cat 250 similar to this only 40psi compression so trying to do the top end but the jug will not come off because it's hitting the ears on the timing chain guide opposite the tensioner feels like something is holding it in the bottom?
So are you saying it feels like the timing chain guide is stuck in the engine block? If so, it has kind of a slot that it fits in down there. It should just slide out as long as the timing chain isnt bound up in its way down there. Im not sure what else could be holding it really. Also, a lot of the time when these engines lose compression, its because the intake valve gets tight and is being held open. The intake valve is bad about wearing on these suzuki engines. Id replace the valve most likely while the head is off just to be safe or at least inspect it good for wear.
@@CumminsDriverhow much to charge someone to replace piston and rings?
Have you worked on the arctic anymore? Is it running now?
I have actually, I just haven’t got the video put together yet. I’ll try and post it in the next week or two hopefully
@@CumminsDriver that’s great to hear! I’m thinking about doing mine soon so I’ve been watching all your videos. They are very informative and helpful. Thank you for sharing. Do you have the link for the timing chain? I saw your other video were you replaced it. It’s a really good idea to do both at the same time.
How did u take the timing chain so easily mine is so hard to get out
This timing chain was worn out which was making it very loose. If the timing chain is in good shape and not loose like this one, you will probably have to take the two bolts out of the cam gear and remove the gear so you can get the chain off of it. Hope this helps
@@CumminsDriver I also cant and impossible to remove cam gear and camshaft together like you did in this video. The tensioner is out and even the side bolt that hold the other tensioner it out and way too tight to take out. R u saying to have to remove the 2 cam gear bolts and then remove the camshaft and then the gear will have enough slack to get out??
@@JoeSmith-sv4jn Yes, basically youll need to remove the two cam gear bolts(you may need to remove one, then spin the engine to get to the other one) and once you remove the bolts, you can slide the gear off the end of the cam and drop it down enough to get the chain walked off the gear, then pull the gear out. You'll have to reassemble it basically the same way. Bolt the cam in, then get the chain walked onto the gear, and then slide the gear back onto the end of the cam and reinstall the bolts. Hope this helps
@@CumminsDriver Thanks for the reply. Was able to get it off last night and my bore is good just honed it so was good news!
@@JoeSmith-sv4jn Good deal, sounds like hopefully a quick fix!