2017 Polaris 800 AXYS MCB Fix-It Kit CAST Durability Kit PRO RMK PRO S PRO X SWI

Description: MCB Performance Center ** NOT FOR USE IN TURBOS ** MCB FIX-IT DURABILITY KIT for Polaris 800 CFI FITS: (ALL) 2008-2017 Polaris 800 CFI models (PRO, PRO RMK, SB, ALL 800 MOTORS) *** PLEASE LEAVE THE EXACT YEAR/MODEL OF YOUR SLED IN THE BUYERS NOTES AT CHECKOUT *** KIT INCLUDES: - (2) MCB Dual-Ring Pistons - (4) Piston Rings - (2) Wrist Pins - (2) B1030 Wrist Pin Needle Bearings - (4) Wiseco CW22 Circlips - (8) 1/4" Longer Cylinder Bolts - (2) 1/4" Longer Dowel Pins - (1) COMPLETE Engine Gasket Kit w/ Additional Base Gasket This is a complete top end piston kit for the Polaris 800 monoblock Dragon / Switchback / RMK all monoblock CFI motors. This kit is designed for improving the reliability / durability of this motors design. It used .240" taller pistons, with tighter tolerances and less skirt taper. This reduces the piston "rock" or "slap" improving the reliability of this motor. This kit includes taller pistons, dual rings, pins, clips, wrist pin bearings, complete top end gasket kit, (factory style coated metal gaskets), machined .240" shim and the extra base gasket for the other side of the shim, eight new .240" longer bolts (not shown), two .240" taller dowel pins, instructions for installation with torque values. We have this kit in our own 2009 Dragon 800 with 2900 miles on it so far, and no issues same compression as when installed. We off the same kit for the 2010 and newer, see our other auctions. Our kits come with full instructions and torque values, we offer service before, during and after the sale. ** NOT FOR USE IN TURBOS ** Polaris 800 CFI fix it explanationThe stock 800 CFI motor runs a piston that is a total height of 2.885”. The stock piston to cylinder wall clearance on the CFI motor runs from .0070”-.0090”, this is considerably larger than the typical piston to cylinder wall clearance of most other water cooled two cycle engines of .0045”. The stock piston also has a considerably larger taper from bottom to top .0026”. These three main factors (short piston, larger piston to cylinder wall tolerance, and larger taper top to bottom) allows the piston to rock or slap within the cylinder. This results in premature ring wear, loss of compression and eventually piston skirt failure or cylinder skirt failure. The MCB fix it kit uses a piston that sets the piston to cylinder wall clearance at .0055”. It uses a piston that has significant less taper, and is .240” taller or 3.125” total height. These three factors eliminate the rock or slap described above, improving the reliability. Stock fuel mapping is as lean as it can be for emmissions. This causes “hot spots” in the fuel mapping and can cause the piston to swell, this is why we run the piston to cylinder wall clearance at .0055” instead of .0045”. We MCB recommend a slight fuel map change and the use of Ice Scratchers to optimize the cooling of the motor and eliminate the “hot spots” that can cause cold seizure like failures, especially if ran at the tighter tolerances other than what we MCB recommend. ______________________________________________________________________ We also offer a cylinder exchange program, and crankshaft remanufacturing services: ____________________________________________________________________________________________________________________________________ These are MCB Dual Ring Pistons with oiling holes. These are OEM direct replacement, hyperutectic cast, molybdenum coated skirts, HBR103 hard anodized piston domes. Superior durability and performance! WHY CHOOSE THE MCB DUAL RING DESIGN?The dual ring design improves heat transfer through the upper portion of the piston and rings, prolonging ring life, and increases the interval time for top end service significantly. These pistons provide more consistent compression, more consistent performance, no performance loss due to heat soak like the original single ring design. This piston is an exclusive MCB design. MCB is the creator of the dual ring design piston for 800R motor. We have had this design since fall 2009 and continue to make improvements. We offer the most experience and expertise on the proven dual ring design. Research our quality and reputation on Dootalk.com or Hardcoresledder.com. We have thousands of these pistons in service with incredible results. Many Ski Doo shops use our Dual ring pistons exclusively when servicing their customers sleds. ________________________________________________________________________________________________________________________________________________________________________ MCB Performance Center has been in business since 1994. We do our best to make sure customers are 100% satisfied. We will help before, during, and even after the sale! We employ actual sales people and technicians that can help you. THANK YOU FOR CHOOSING MCB PERFORMANCE CENTER! ___________________________________________________________ QUESTIONS OR CONCERNS?Please contact us via eBay messaging system! NOTE: BY BIDDING ON OR PURCHASING AN ITEM(s), BUYERS AGREE TO THE FOLLOWING POLICIES / TERMS OF SALE. FITMENT:We strive to make our auctions as accurate as possible. Our compatibility chart lists any and all vehicles that the given part(s) will fit.If you do not see your vehicle in the chart, or mentioned in the description, these parts generally will not fit your vehicle. IT IS NOT OUR RESPONSIBILITY IF YOU HAVE ORDERED PARTS FOR AN INCOMPATIBLE VEHICLE! DOMESTIC (Continental USA) SHIPPING:We normally ship within 2 business days once payment has cleared. We make every effort to ship items quickly, however sometimes delays may occur. CANADA / INTERNATIONAL SHIPPING:Canada and International orders ship USPS 1-3 business days once payment has cleared.International buyers are responsible for all duty, brokerage fees, taxes, etc. TRACKING INFORMATION:Tracking numbers are updated at the end of the business day for all orders that have gone out that day. IF your order has to be drop shipped, it will be marked as shipped, and you will receive an email stating just that. OUT OF STOCK – BACK ORDERED ITEMS:Items are in stock in our store OR with our supplier(s) at the time the listing is started. From time to time it is possible that the item featured in the listing is either back ordered or discontinued.In the event this happens, we will promptly issue a refund and notify the buyer via ebay message system.We will then begin the cancel transaction process. This allows us to recoup ebay selling fees. COMMUNICATION – IT'S IMPORTANT! It is VERY important that we have a reliable means to communicate with our valued customers. Please be sure to check your messages to review any info from us on your order. MANUFACTURER'S WARRANTIES:All warranties are the responsibility of the manufacturer of the product.Most do not allow dealers to make a decision whether or not the product will be replaced or repaired. PAYMENT:To expedite shipping, payment may be made through paypal within 4 days of the purchase. ***** RETURN / EXCHANGE POLICY *****Our goal is to have satisfied buyers, We will gladly exchange an item within14 days of the purchase exchange/return specifications. The buyer MUST contact via ebay for return authorization and return address. ALL ITEMS MUST BE RETURNED PER EBAY POLICY WHICH INCLUDES:Item(s) and packaging MUST be in the condition the buyer received them. Items & ALL Packaging must be in original (NEW IN BOX) unaltered condition.ALL packaging, labels, tags, shrink wrap must be unaltered and fully intact.Do not write on item or packaging. We will NOT accept items or packaging that have been opened, installed, used, ornot in their complete original un-altered packaging under ANY circumstances. If you open the packaging it cannot be exchanged or returned. Exchanges: Are subject to availability of a replacement item. Refunds: There is a 10% re-stock fee on all exchanges & returns, unless the item is defective!

Price: 599.95 USD

Location: Capac, Michigan

End Time: 2024-12-23T19:30:33.000Z

Shipping Cost: N/A USD