Cylinder back from shop - Polaris ATV Forum
ATV General Discussion General Discussions about Polaris ATVs.

 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old 03-14-2012, 02:01 PM Thread Starter
Junior Member
 
03predator's Avatar
 
Join Date: Sep 2010
Posts: 28
Cylinder back from shop

Swapping bottom ends out on an 03 pred 500. Using an 04 bottom end with my 03 top. Went ahead and took the cylinder/piston to the shop to check and see if its within specs to just throw a hone on and re ring since i didnt need a top end anyways. Heres what i got back.

Out of round .02-.03 But my max tolerance is .05 so im fine there.
Bore is 99.26mm and std bore is 99.2.
Taper is .03-.05 which .05 is max so im barely good to go there.

But heres the kicker. Cylinder to bore specs are .08 and max according to the manual is .065.

Its gonna cost me 400$ or so to have this cylinder repaired + new piston and rings since its a plated cylinder.

Or i can suck up the .015 and hone and just put a set of rings on. They said if i do that its gonna be on the loose side of things and may or may not last. This top end didnt smoke or anything though is what gets me...

Any thoughts? Re-ring and go? Or...
03predator is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 03-15-2012, 07:04 AM
Extreme ATV Enthusiast
 
fmartin_gila's Avatar
 
Join Date: Jan 2012
Posts: 166
I am fairly new to these particular engines but a long background in engines in general so you may or may not accept this. Considerring the measurements you stated, if it were mine, I would just light hone to break the glaze and use new rings and go for it.

Fred
fmartin_gila is offline  
post #3 of 7 (permalink) Old 03-15-2012, 09:42 AM Thread Starter
Junior Member
 
03predator's Avatar
 
Join Date: Sep 2010
Posts: 28
Quote:
Originally Posted by fmartin_gila View Post
I am fairly new to these particular engines but a long background in engines in general so you may or may not accept this. Considerring the measurements you stated, if it were mine, I would just light hone to break the glaze and use new rings and go for it.

Fred
Thanks for the reply. This is what im thinking. I understand its out of spec, but .015 is very little to worry too much over. A sheet of copy paper is .015. Installing new rings could potentially put me right back to max specs being my others were 9 years old. The plating looks good, and no scratches or gouging at all. Im thinking a quick deglaze and rings will hold up just fine. Besides, i only ride about 15 hours a year anyways. Next year ill do a complete new top end. Ive rebuilt alot of engines without ever having anything checked from the shop, that were smoking light freight trains and new rings and a hone fixed them up great. This engine ddint even smoke, but since i was in there i decided to have it all checked and put rings in it. Im probably just worrying too much. Thanks alot once again.
03predator is offline  
Sponsored Links
Advertisement
 
post #4 of 7 (permalink) Old 03-15-2012, 10:22 AM
Extreme ATV Enthusiast
 
starpuss's Avatar
 
Join Date: Jun 2011
Location: Winnipeg Manitoba Canada
Posts: 239
Why not Buy a Big Bore top End Kit????????

http://www.ebay.com/itm/POLARIS-PRED...4e288f&vxp=mtr

http://www.ebay.com/itm/Predator-500...ea7ef1&vxp=mtr


http://www.ebay.com/itm/POLARIS-500-...436b4c&vxp=mtr

2011 Polaris Sportsman 500 HO TRG
1997 polaris xplorer 400
1977 yamaha it175
1988 QuadZilla (Lt500R)
1985 Bigwheel (BW200)

Last edited by starpuss; 03-15-2012 at 10:24 AM.
starpuss is offline  
post #5 of 7 (permalink) Old 03-16-2012, 07:16 AM Thread Starter
Junior Member
 
03predator's Avatar
 
Join Date: Sep 2010
Posts: 28
Same reason i dont just buy a new cylinder. Big bore kit = $300.00 Machine work + install the sleeve = $200.00- $250.00.....
03predator is offline  
post #6 of 7 (permalink) Old 03-16-2012, 07:39 AM
Extreme ATV Enthusiast
 
mowreyj's Avatar
 
Join Date: Mar 2012
Location: Globe AZ
Posts: 306
Go for it Ive built a few engines in my days and from 2 strokes to 4 strokes i bet you will be just fine your not building a precision race engine
mowreyj is offline  
post #7 of 7 (permalink) Old 03-16-2012, 04:53 PM
Polaris ATV Legend
 
RENOBADBOY's Avatar
 
Join Date: Feb 2012
Location: Reno,Nev.
Posts: 1,565
My take? Put it together and ride it while saving up for a big bore kit! Common sence rules!!!! Have fun!

'96 Xplorer 300 Aftermarket CDI box, K&N filter, jet kit, reworked expansion chamber from dirt bike, 1" taller + 1" wider rear tires, dual wenches, Rack on rear/w cargo pac, polaris box on front, Mossy Oak cover on seat, back-up lights on rear, aux. power source for GPS,"Theft deturent's", hand protectors, new clutch springs coming! Would love to find GURU style bumpers! By the way, I'm also a graduate of AMI with over 20 years of motorcycle mechanical experiance. New to quads, but the same basic engines. 2 stroke or 4 stroke!
RENOBADBOY is offline  
Reply

  Lower Navigation
Go Back   Polaris ATV Forum > Polaris ATV Discussions > ATV General Discussion

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Polaris ATV Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
2012 Sportsman 500 H.O. - OTB and back to the shop... RAckAttack Polaris Sportsman 22 10-22-2011 08:34 AM
Shop Pic's cfaas416 Around The Garage 3 10-14-2011 02:30 PM
just got back from roadtrip..look what i brought back! hotairgypsy Polaris Sportsman 1 02-14-2011 04:17 PM
Ranger RZR wins back to back at 2010 Lucas Off Road Side-by-Side Course blueline15 Polaris ATV News 4 03-21-2010 07:31 PM
Polaris/Rath Sportsman 850 XP –Back to Back Wins! dascrow Polaris ATV News 3 08-07-2009 05:56 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome