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Old 09-16-2009, 10:15 AM   #1 (permalink)
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Engine swap

I'm working on a 2004 Z570LX. The engine is pretty much junk(so much damage it would cost way more than sled is worth to piece back together) I was wondering if there's another engine that would possibly drop-in ?! I know the Z chassis was supposed to be based off the ZR chassis ?? Would it be possible to do a swap over to liquid cooled ? It seems these parts are much more readily available.

Thanks in advance for any info.
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Old 09-16-2009, 11:37 AM   #2 (permalink)
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The Z chassis came first. used the same engine mounts as the older sleds (plate type).
The ZR/ZL used a modular engine mount that attaches directly to the engine base and frame. You could convert the frame to L/C, but it means cutting out for the heat exchangers. Better to just get a rolling frame and add a motor.
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Old 09-16-2009, 01:26 PM   #3 (permalink)
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I see ZR chassis's as early as 93 and the Z chassis started in 95.

"Arctic Cat Z570

Snow Week


Economy sleds from Arctic Cat wear the “Z” nameplate. Available with a 370, 440 or 570cc engine, these full-sized sleds, built on the ZR chassis, offer plenty of features to provide a fun day on the trails.

The Z 570 is equipped with a hydraulic disc brake and a 15- by 121- by .85-inch track. It’s available in green or orange.

All engine sizes are available with the LX package, which includes electric start, reverse and mirrors. The F 120 chassis is aluminum and paint schemes are orange or green.



Suspension

Front Suspension: AWS V Double Wishbone A-Arm; Shocks/Travel: Hydraulic twin tube/8.4 inches; Rear Suspension: FasTrack Long Travel;

Shocks/Travel: Hydraulic twin tube/13.5 inches; Features: The front suspension features a 41-inch ski stance for steady tracking through turns. Suspensions are tuned for easy-going speeds.



Engine

570: Cat lists this 565cc fan-cooled engine’s output at 70 hp. It has dual 34mm Mikuni carburetors."
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Old 09-16-2009, 01:37 PM   #4 (permalink)
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This is what my rear mounts look like

ARCTIC CAT Z PANTHER BEARCAT 570 Z570 REAR MOTOR MOUNTS:eBay Motors (item 200325904126 end time Sep-25-09 13:02:57 PDT)
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Old 09-16-2009, 02:49 PM   #5 (permalink)
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Same as my 93 wildcat then, the 90 I'm building now has the older plate type mount.
All the sleds from 92 on had that type of motor mount.
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Old 09-18-2009, 07:40 PM   #6 (permalink)
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The 04 Z570 is the same chassis as the ZR! But it does not have the heat exchangers for the liq cooling! What exactly happened to your motor! Rebuilding a fan is fairly cheap and very easy!
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Old 09-18-2009, 08:20 PM   #7 (permalink)
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Used parts for these sleds seem to be few and far between. And new are way too pricey.

Engine digested piston skirt, tore a hole in lower crankcase, cylinder scored badly around ports, head damaged, crank bearings are chattered, balancer weight on crank is gouged etc. etc.

So looking at used case..................$375
used cylinder................................$250
head I already have.......................$0
piston kits....................................$225
bearings,seals,gaskets....................$200+

So I'm looking at over $1000 in just parts. I'm doing this rebuild for a friend. I just don't think the fan cooled engine is designed for longevity(hence the "economy" title it was given) and I can't see rebuilding this one for the $1000 cost. I wish I could find a used/rebuilder 570 engine for a few hundred, freshen it and put him on the trail.

I was thinking about the swap because the ZR parts seem much more reasonable and available. I can get all three heat exchangers(used) for under $100, a rebuilt 580 for $500-$600. I'm just not sure about the mounts if there's a lot of fabricating needed to mount a 580 or larger engine it may not be worth it ?!

What do you think ?!

Should he just part out this sled ?
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Old 09-19-2009, 07:04 AM   #8 (permalink)
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Have the case welded, the cyl plated and turn the head! Send in the crank!
Case weld $100
Cyl $175
Crank & seals $ 400
Pistons & gaskets $125
Complete rebuild $ 800
Call the salvage yards and price out a used motor! I've even seen 570's here in the used parts section! Trying to switch to a lq cooled is a very big project! Tou will need to cut the tunnel to put the exchangers in! The mounts would have to come with the motor! To go to a ZR600 wouldn't need anything different! But If you are going to do this then you might as well go all the way to a ZR800-900!
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Old 09-19-2009, 08:07 AM   #9 (permalink)
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Quote:
Originally Posted by kccats View Post
But If you are going to do this then you might as well go all the way to a ZR800-900!
I like the way you think ! I love them sleepers ! Now that's something worth spending some money on !

Here's some pics of case and crank.
Attached Thumbnails
Engine swap-dscf0094.jpg   Engine swap-dscf0096.jpg  
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Old 09-19-2009, 08:12 AM   #10 (permalink)
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Let me know if you come across any 570 engines. Numbers or links appreciated. I've been scouring the Wisconsin area.

Thanks
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Old 09-19-2009, 01:51 PM   #11 (permalink)
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Try here too:
Al's Snowmobile Parts Warehouse - Snowmobile Parts, Snowmobile Parts, and More Snowmobile Parts
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1980 AC Pantera (donor engine to the 90 wildcat)


http://www.dcdrifters.net/


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Old 09-20-2009, 07:52 PM   #12 (permalink)
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As Emerson Stall! But that don't look bad at all! Send it up to John at Northern Crankshaft! Send the jug to US Chrome! And turn the heads!
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Old 09-21-2009, 11:08 AM   #13 (permalink)
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ebay for used motor or parts. also check hudons sled salvage and als snowmobile the 570 fanner is a good reliable motor, freshen it up every 4 or 5k with new pistions and it would be fine. fast for a fan too
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Old 09-22-2009, 08:13 AM   #14 (permalink)
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You wont find a better fan motor to put in that sled!
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Old 09-22-2009, 09:57 AM   #15 (permalink)
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I know it's a good FAN motor but I'm not a huge fan of the fans ! They're a cheap motor that what Arctic Cat was trying to do with the Z series. Make a cheap sled to get people out there. As with all the cheaper stuff used parts are hard to come by. I couldn't tell you how many salvage yards don't have the fan stuff. They ask "that's the fan engine right ?" "no parts for them"

The guy I'm doing the work for has this 2004 Z570 and a 2002 Pantera 550(liquid) The 570 has 5600 miles and is on it's second rebuild. The 550 has 7300 miles and has not had a freshening(still reads 125 per cylinder) I know it may be just chance that they're working out like that.

I would replace the 570 with another 570 could I find one(I have my eyes on a salvage sled right now) I just think that sticking $1000 in parts and a few hundred in labor in rebuilding this engine hardly justifies the $2000 value of the sled it would be worth more parting out. If I could come across a good engine for $600-$700 or a rebuilder for $400-$500 I could justify telling the guy his bill will be under $900. When I'm doing work for family I want to do the best I can for them. I want to see them get their best bang for the buck. Even if it means cashing in their chips and walking away.
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Old 09-22-2009, 10:27 AM   #16 (permalink)
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that 550 is a time bomb. it may have good compression but i would almost guarantee the piston skirts are starting to crack, it will have the same fate if it isnt rebuilt. just looked myself, there isnt much out there for it though. ebay draws a blank w the 570
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Old 09-22-2009, 10:39 AM   #17 (permalink)
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I'm sure it is a time bomb but it's hard to convince people to spend a few hundred bucks when their machine runs well. Most people do not do preventative maintenance it's usually after the fact.

I did find a salvage sled but they have it up for auction. I'm going to wait it out for a few more days. Sled suffered some body and tunnel damage, engine runs fine.

If anyone has any leads to other 570 engines I'm all ears or eyes !

Thanks !
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Old 09-22-2009, 11:31 AM   #18 (permalink)
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goodluck, ill keep an eye out
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