Arctic Cat Prowler Forums banner

1 - 19 of 19 Posts

·
Registered
Joined
·
23 Posts
Discussion Starter #1
I've got a new Prowler 1000 with about 300 miles on it. I've got a knock in the engine. Sounds like a rod. The typical knock-knock between acceleration and decceleration throttle position. Is this a chronic problem with this engine? Can the crank be pressed apart and just replace the rod and bearing? Is it hard to shove one of these engines up somebody's azz?
 

·
Registered
Joined
·
491 Posts
hmmmmmm rod knock? well i think youre the first one on here to have that problem ! did you buy it new or used ? what happened to cause the knock ? are you sure there isnt anything loose in the clutch? im just asking because as far as i know these motors are pretty damn tough.
 

·
Registered
Joined
·
23 Posts
Discussion Starter #3
I bought it new a couple weeks ago. I didn't buy the warranty, so I guess I'm screwed.

It sure sounds like a definite rod knock. I used a stethescope and the noise seems to be coming from the crankcase, not the from the clutch. I'm going to dump the oil tomorrow and see what I find. I see the crank is a pressed pin type. I've rebuilt a few hundred of those when I had my Yamaha dealership. It seems that Arctic Cat only sells the complete crank. Anyone know this for sure? If I could get a rod and bearing, it would be an easy fix.
 

·
Registered
Joined
·
491 Posts
oh yea now i remember . did you ride it all the way back home? if its only a couple of weeks old all new cats come with a mfg 6 month warranty i beleive . its the extended one you have to pay for . as for how it goes together on the crank i dont know . some one will chime in !
 

·
Registered
Joined
·
157 Posts
Rod knock

I had a 650 that ran fine for 200 hours with wheels on it only made 50 more hours once I put tracks on. I beleive you have tracks also,correct? I had change oil often. within 50 of the failure. Often wondered if sucking in snow could have contributed to this. Or if moisture had stuck the relief valve for the oil pump. Anyway went back together with an oil pressure gauge for next time. Made mine into a 700 but also had to buy a crank. See if there is room for two of them up there!
 

·
Registered
Joined
·
463 Posts
Wow this is the first I've heard of a rod nocking. Call your dealer and see if he has a big azz maybe it will fit. Lol. I hope you get it fixed.
 

·
Registered
Joined
·
23 Posts
Discussion Starter #7
I had a 650 that ran fine for 200 hours with wheels on it only made 50 more hours once I put tracks on. I beleive you have tracks also,correct? I had change oil often. within 50 of the failure. Often wondered if sucking in snow could have contributed to this. Or if moisture had stuck the relief valve for the oil pump. Anyway went back together with an oil pressure gauge for next time. Made mine into a 700 but also had to buy a crank. See if there is room for two of them up there!

I was on tracks. Not running fast. Took me about 10 hours to run the 120 miles down and about 7 on the way back. I picked up the knock about 10 miles from town on the way back. Didn't notice anything showing a lack of oil pressure. It seems if the rod was out, I'd have zip for oil pressure unless this crank isn't pump fed. That would be hard to believe. I think the speedo is supposed to go nuts if there is a oil pressure problem. I did notice mine would quit once in awhile, but would come back up when I hit a bump. The tach always worked fine.

I'm with ya brother on the oil pressure guage.
 

·
Registered
Joined
·
294 Posts
All arcitc cat come standard with the 6month warranty, So I would take it to your dealer and see it they will fix it, this is the first one I've ever heard of any knocking.
 

·
Registered
Joined
·
192 Posts
Run it like ya stole it!! its still under factory warranty if there is a problem it will show itself. then ya get all new parts.
 

·
Registered
Joined
·
157 Posts
Worse thing you can do is take it in half wrecked Learned that from Ford years back they put two pistons in the number eight cylinder but couldn't figure out why on a 302 when the next one started to miss I ran it intil it stoped broke two rods and destroyed everything. Then I got my new engine
 

·
Registered
Joined
·
23 Posts
Discussion Starter #12
I was at my Arctic Cat dealer yesterday discussing my "rod knock" and they happened to be working on a Prowler that had some clutch mods done and also was on tracks. The machine had the same "knock" as mine. Turns out the "wet clutch" can take a crap and produce a knocking noise. After seeing the unit apart, it's obviously a weak link in the drive system. Seems the added strain of the tracks caused the failure. I think the sprag bearing is the source of the noise. Although this is a problem, it certainly is better than replacing a crank. I noticed a "chattering squeal" just prior to the knocking sound developing on my machine. The machine my dealer was working on had that "squeal".

Just a heads up for you folks with tracks. You may want to use low range in any hard pull situations. The gear reduction of the tracks makes the operator think there is little strain on the drive, but in high range, there is a "gear up-gear down" situation that adds parasitic load to the clutch.

I think it's a "learn to live with it" thing until the clutch is beefed up to handle the torque of the 1000.

All and all, I love the damn thing.

BTW, I'm on tires now. This thing is "holy sh*t" fast.
 

·
Registered
Joined
·
618 Posts
Sound something like this?





---
 

·
Registered
Joined
·
618 Posts
From what I've been told and researched it's normal noise on the Prowlers. I still think it's something in the wet clutch.

My dealer has never steered me wrong and say they've heard worse and have never had one fail due to what ever is making the hoise.

Odd part is this weekend it didn't make any noise, could be good or bad
 

·
Registered
Joined
·
23 Posts
Discussion Starter #17
Update on rod-knock.

As advised by a member here, I "run it like I stole it" and the front rod totally hailed out. Both pistons and cylinders are trash along with a few bearings. Cams not looking to good, either. My dealer looked at it and ordered a new engine. Bad rod from the factory was the cause. Covered by warranty, 100%:). Cat sure beats other manufacures for painless warranty.
 

·
Registered
Joined
·
463 Posts
Wow thats a first a bad rod. make sure to break in the new motor. I hpoe the new one lasts longer
 

·
Registered
Joined
·
1,324 Posts
I seen your motor down at Northern.
Looked at it thought maybe about a retrofit for my 650.
But you did too good of a job on it!!!

Keep up the good work.......
 
1 - 19 of 19 Posts
Top