What makes this thing tick (2) - Arctic Cat Prowler Forums: Prowler UTV Forum
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post #1 of 79 (permalink) Old 01-28-2017, 05:49 AM Thread Starter
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What makes this thing tick (2)

I'm thinking I'm the first guy to ever rebuild the 1000 cat motor, Prowler or Wildcat! No help on YouTube that I can find! WOW!!
The good news is I have it back together! I replaced every lower bearing, seals, and gaskets, along with a new crank, new cylinders, new pistons, and all top end gaskets. Everything is new accept the cases and the heads up! SO MY ISSUE IS: Everything is done correct including the CAM TIMING, triple quadruple checked prior to turning it over with the top end bolted down. Valves adjusted prior to turning it over. What I have is a click on the exhaust valves when I hit top dead center on the front cylinder! Why? Bad valve guides? Bent valve stems? The sound is similar to as if you broke the end of your pencil lead on a pencil. Holding my fingers on top of the adjuster I can feel it clearly coming from the exhaust valves! And I can't say for sure but it doesn't feel like it has good compression on that cylinder where I clearly hear compression on the rear cylinder. Any ideas guy's? If it makes a noise like this turning it over by hand ya can only imagine the noise it will have when running!

2010 XTZ 1000..... HCR Suspension, 6" lift, King Racing Series Shocks, Summer's Brothers Racing Axles, Beard Seats, Tiger Tracks, A/C Hinged Windshield, Custom Light Bar by Butch, Custom 1/2 Doors by Butch. What's next ???
My friends call me Butch
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post #2 of 79 (permalink) Old 01-28-2017, 07:42 AM
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I take it you are rolling it over by hand with the spark plug out. Happening as the exhaust valve is closing, I take it? Could some carbon build up fallen off the valve and stuck under the valve seat? The old spark plug electrode wasn't mashed up when you took it out, was it? Just wondering if the old piston kissed the plug and knocked some crap loose that could be between the valve and the seat? Just scratching my chin, thinking. Hard to TS&R when you can't put your hands on it. Wish I was there to see it, Butch...
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'09 650XT H1, 72" Eagle Plow, Warn 3500 Winch. Dyna CDI box, UNI filters, A/C V-bag and console, EPI lift kit, Highlifter springs, Scat ProCar suspension seats. Rick the Rockets A frame and shock bushings. 28x12X14 Raceline Bruisers on Vision rims, on all corners. Cowling heat vents. Factory heat and defrost. RD's custom alternator kit. XTZ hood scoop and front shocks. Monster shock covers, turn signals. OEM glass sport windshield, sliding rear window, and lights, lights and more lights!
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post #3 of 79 (permalink) Old 01-28-2017, 10:21 AM
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I t may be the compression release start feature on the cam' If it rolls over by hand and no sigh other than the clicking noise I'd lay money on the compression release. I roll mine over by hand and have no interference other than the noise. The cam in question may have a spring and centrifugal weight on the cam.
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2009 700EFI XTX, , AC Winch, 2010 Dust Shield EPI Sport Utility Clutch Kit , Street Legal, Cage chopped 2 ", Aluminum Diamond Plate Trim, Relocated Factory Bladders with covers, 5 Pt. Harness installed, Bed Tiedown System, Scat Pro-Car Seats, Secondary Battery installed, Oil Pressure, Oil/CVT Temperature, Volt Meter & Water Temp Gauges installed with Dash Plate, Bighorns, ITP Black 212 Wheels. Tonneau cover. 750 Big Bore Kit, Web Cam, and Rocker Arms.

Either - Dick or RD
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post #4 of 79 (permalink) Old 01-28-2017, 02:44 PM Thread Starter
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Yes, I am turning the motor over by hand on the bench........
I scratched my head and every other area on my body with hair trying to figure it out. I had everything so clean Bryan ya could eat out of the bottom pan..........
AND THE WINNER IS.....RD, YOU GOT IT!............. DAM COMPRESSION RELEASE! I called a buddy of mine in Iowa that spent 33 years in an Arctic Cat shop that's rebuilt many tops on the 1000's and that's what he said it was! Shit, have a head with valves installed in it on the way, bwaaaahahahaha. Thought I had bad guides and this was the easy way out to check it. Oh well, she's ready to be lifted and dropped back inNow I have a spare head that I'll never need, ha!
Good call RD! Will keep you all posted.
Another thing I found was my outer drive clutch sheaves were shot! Turns out that big bearing on the shaft behind the one way bearing was real bad. Remember RD when I was chasing that clutch noise problem? I had pointed out at that time I thought there was play in that shaft! After installing the new bearing a guy can really tell the difference. She's tight and unreal how much smoother and quiet she free rolls! I'm getting to really know what makes this big motor TICK, inside and out!

2010 XTZ 1000..... HCR Suspension, 6" lift, King Racing Series Shocks, Summer's Brothers Racing Axles, Beard Seats, Tiger Tracks, A/C Hinged Windshield, Custom Light Bar by Butch, Custom 1/2 Doors by Butch. What's next ???
My friends call me Butch
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post #5 of 79 (permalink) Old 01-28-2017, 02:48 PM Thread Starter
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Thinking back now I wonder if that bearing behind the clutch being bad didn't send enough vibration through the crank to cause the crankshaft to fail?

2010 XTZ 1000..... HCR Suspension, 6" lift, King Racing Series Shocks, Summer's Brothers Racing Axles, Beard Seats, Tiger Tracks, A/C Hinged Windshield, Custom Light Bar by Butch, Custom 1/2 Doors by Butch. What's next ???
My friends call me Butch
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post #6 of 79 (permalink) Old 01-28-2017, 03:10 PM
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Good to know! I just picked a USB camera off ebay for 16 dollars! It is small enough to go in the sparkplug hole! It Plugs into my laptop for viewing! I'll give a product summary if it is worth a dam! Back to the crankshaft bearing failure, any vibration not normal would have to cause wear! Glad I learned a few things on Prowlers! LOL
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2009 700EFI XTX, , AC Winch, 2010 Dust Shield EPI Sport Utility Clutch Kit , Street Legal, Cage chopped 2 ", Aluminum Diamond Plate Trim, Relocated Factory Bladders with covers, 5 Pt. Harness installed, Bed Tiedown System, Scat Pro-Car Seats, Secondary Battery installed, Oil Pressure, Oil/CVT Temperature, Volt Meter & Water Temp Gauges installed with Dash Plate, Bighorns, ITP Black 212 Wheels. Tonneau cover. 750 Big Bore Kit, Web Cam, and Rocker Arms.

Either - Dick or RD
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post #7 of 79 (permalink) Old 01-28-2017, 03:21 PM Thread Starter
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Quote:
Originally Posted by Fairmont79 View Post
Good to know! I just picked a USB camera off ebay for 16 dollars! It is small enough to go in the sparkplug hole! It Plugs into my laptop for viewing! I'll give a product summary if it is worth a dam! Back to the crankshaft bearing failure, any vibration not normal would have to cause wear! Glad I learned a few things on Prowlers! LOL
Making sure you saw the post above about the compression release!

Yes, I am turning the motor over by hand on the bench........
I scratched my head and every other area on my body with hair trying to figure it out. I had everything so clean Bryan ya could eat out of the bottom pan..........
AND THE WINNER IS.....RD, YOU GOT IT!............. DAM COMPRESSION RELEASE! I called a buddy of mine in Iowa that spent 33 years in an Arctic Cat shop that's rebuilt many tops on the 1000's and that's what he said it was! Shit, have a head with valves installed in it on the way, bwaaaahahahaha. Thought I had bad guides and this was the easy way out to check it. Oh well, she's ready to be lifted and dropped back inNow I have a spare head that I'll never need, ha!
Good call RD! Will keep you all posted.
Another thing I found was my outer drive clutch sheaves were shot! Turns out that big bearing on the shaft behind the one way bearing was real bad. Remember RD when I was chasing that clutch noise problem? I had pointed out at that time I thought there was play in that shaft! After installing the new bearing a guy can really tell the difference. She's tight and unreal how much smoother and quiet she free rolls! I'm getting to really know what makes this big motor TICK, inside and out!

2010 XTZ 1000..... HCR Suspension, 6" lift, King Racing Series Shocks, Summer's Brothers Racing Axles, Beard Seats, Tiger Tracks, A/C Hinged Windshield, Custom Light Bar by Butch, Custom 1/2 Doors by Butch. What's next ???
My friends call me Butch
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post #8 of 79 (permalink) Old 01-28-2017, 06:16 PM
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just got on , was going to say what RD did

I had one {CR] go bad and the rig wouldn't run worth a crap , would even hardly pull itself up the ramps , and the sounds as if it was eating itself alive.
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name is Gary or hey you if ya forget

2009 Prowler XTZ , couple things added here and there
'83 CJ7 / SBC + whole lot added here and there
'01 Dodge / Cummins / Dually, a ton of stuff added here and there

INSTRUCTIONS FOR THE NEWBIES ...
1. Bring in a good load of firewood for the pit
2. start the morning coffee , strong but not burnt / boiled down , IMPORTANT start it early as many of us old farts get up early !!
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post #9 of 79 (permalink) Old 01-29-2017, 04:55 AM
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Going to head uptown today and grab my advancing timing light to see where these 1000's run at. Seeing how I have a fuel controller with an O2 sensor and the maps set at 13.2 a/f it shouldn't be running lean so the timing may be severely retarded to meet some sort of emission standard. Not understanding why these 1000's run so hot and exhaust to glow red..



Tim

2010 A/C XTZ with some "Stuff" SOLD
But still here everyday to contribute to the cause
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post #10 of 79 (permalink) Old 01-29-2017, 07:05 AM Thread Starter
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Quote:
Originally Posted by Diesel Racer View Post
Going to head uptown today and grab my advancing timing light to see where these 1000's run at. Seeing how I have a fuel controller with an O2 sensor and the maps set at 13.2 a/f it shouldn't be running lean so the timing may be severely retarded to meet some sort of emission standard. Not understanding why these 1000's run so hot and exhaust to glow red..
Tim, never known mine to run hot! Seems on the normal side comparing it to other brands and my old H1

2010 XTZ 1000..... HCR Suspension, 6" lift, King Racing Series Shocks, Summer's Brothers Racing Axles, Beard Seats, Tiger Tracks, A/C Hinged Windshield, Custom Light Bar by Butch, Custom 1/2 Doors by Butch. What's next ???
My friends call me Butch
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