Polaris exhaust valve installation

Mar 23, 1. Mar 17, 3. Mar 9, 3. The valves still moved freely within the cylinders and its threads were like brand new. This happened to both cylinders.

Luckily all the metal shavings were contained within the valve body and bellows. My questions are: Is there a different, stronger nut for the Stainless Steel valves? Something made out of Stainless Steel? Does the extra weight of the valve require different bellows, springs? Anybody else having this problem? Over the years as the engine performance and calibration of the Liberty big block changed, the amount of heat the valves were exposed to also increased.

This is more of an issue on the s than the smaller engines like the due to the larger bore of the , resulting in less room for coolant flow around the valve area on the In , Polaris was using aluminum valves.

This kit contains the stainless steel exhaust valves and valve springs kit instructions provide information on what springs to use for what elevation. Titanium valves were released as an accessory for MY05 for the , but with the success of the stainless steel valves the titanium accessories have since been dropped from the line. Polaris went to the Stainless Steel valves in MY05 on the using the aluminum cap nut, with Loctite applied to the cap nut.

When properly cleaned, Loctite applied and torque to 16 ft. If they were contaminated with any oily substance, the locking agent would not bond this applies to any fastener when using any Loctite bonding agent. The cap nuts have transitioned from aluminum to anodized aluminum Polaris part In MY06 all valves were installed with the anodized cap nut and Loctite For the absolute best retention of the cap nut when using stainless or titanium valves, you could use Loctite Polaris Part Remove the gasket and discard.

Remove the two vertical cover screws to access the spring and bellows. Secure the guillotine, then apply heat to remove the bellows cap nut. Separate the cap nut, bellows and bellows washer from the guillotine. Remove the guillotine from the base. Exhaust Valve Assembly 1. Clean the threads of the guillotine with Primer N. Insert the base into the clean guillotine.

Apply Loctite to the first 3 threads on the guillotine. Place the bellows washer, bellows and cap nut onto the guillotine. Torque the cap nut to specification. Remove the vent hose from the EV base fitting. Remove the two fasteners that secure the valve assembly to the cylinder, but not the two screws that secure the cover to the EV base. Carefully extract the guillotine out of the cylinder. Using a clean rag or shop towel, remove the oil residue from the cylinder, guillotine, and EV base.

Inspect the guillotine for signs of damage. Clean the guillotine with brake cleaner and a piece of fine steel wool. Once clean, rinse blade with mild detergent and water. Install a new gasket, then reinstall the EV assembly.

Reconnect the vent hose. Guillotine Cap Nut Torque: 16 Ft. Last edited: Dec 10, Ex-Member Well-known member. Mar 14, 45, 1, I plan on doing mine mid-season, they were way gunked up this summer. Order a few gaskets and keep 'em on hand Oven cleaner works wonders on that buildup. Nov 26, 2, 63 35 Stickney, South Dakota www. Why not reuse the gaskets? Dec 4, 10, 3, Colorado Springs.

I just looked at my 08 yesterday and the bellows on it are orange. I've never replaced the gaskets unless they tore coming off. Jan 9, 2, 83 Woodland, WA. Otherwise, you may twist a hole in it. My stock 06s are orange too:beer;. I JUST did this to my wifes 06 rmk about 2 weeks ago..

Orange is the newest, "updated" bellows for the VES, not sure about the CFI, I would expect the color code to stay the same though. Super Dave3 Well-known member Lifetime Membership.

Feb 15, 1, 83 59 Klamath Falls OR. I have'nt seen black bellows for a few years now. All the bellows are now orange. I'm still gonna make a new post asking "how do I clean my VES valves? Nov 26, 24 18 Sumner,Washington. Just cleaned mine today 2 years no cleaning first year Polaris blue oil second year Walmart's super tech 2 stroke and compared to what i've seen before they are relatively clean.

It would be interesting to see what a set look like under the same circumstances but ran with synthetic oil. Jan 30, 54 0 6 WYO. Polarismaster26 Member. Dec 4, 16 18 32 Redmond, Wa. I just got done cleaning mine today after getting the new gasket and damn they were dirty. Dec 19, 93 11 8 Redmond WA. Exhaust valve Is there a way to test the seal while its on the sled? I tried both mine and they wont pull any vacume, is this normal?

Dogmeat Well-known member Premium Member. Feb 1, 5, 1, Laramie, WY. When you guys clean these, what do you use to clean it? It says oven cleaner Brake parts cleaner? Also do you guys think a sticky exhaust valve could be the cause for my sled to sputter at rpm and only rpm? I used this stuff Foams up when you spray it on. Wipe off what comes off, had to scrape off the heavier stuff. Not sure why exactly 5K3 RPM Garrett Free Member.

Dec 2, 5 18 Quebec, Ca. Here is my valves on my after miles with Motul Full syntec, Snow Power. Nelson Well-known member. Make sure you wear rubber gloves if you plan on using oven cleaner. Nasty stuff. It'll strip the skin right off your hands. Mineral spirits will work fine, solvents, etc. Nov 27, 10, 4, Where the Buffalo roam. Got to go easy with the scotch brites.. You must log in or register to reply here.