Author: Chuck Downs, Service Manager
Source: articleage.com
The SVS II Deluxe Valve Refacer is the most accurate ValveRefacer made today..0005 accuracy for standard chuck and .0002 accuracy forhigh-performance chuck. The Industry's Best.The Kwik-Way CenterLine Chuck is what makes the SVS II ValveRefacer a cut above all the rest. Other Valve Refacers useChucks, referred to as "center less". These use rollers to gripthe valve stem while the Kwik-way Chuck uses two sets ofindependent balls that grip the stem at two very distinctpoints. The advantage being, if you have a center less chuck andyou're trying to grind an in-service valve, if there is anyout-of-round on the valve stem, that out-of-round is transferredfrom the rollers on the center less chuck to the valve face. Soyour face run out will be no better than your stem run-out.With the Kwik-way Chuck, since it uses two sets of balls thatcapture the valve in the wear area of the stem, willautomatically re-centerline the valve. What that means is whenwe grind the valve, the face will come out true to the centerline of the stem that actually rides in the valve guide.In other words, if there is some wear on the stem surface theKwik-Way Chuck is going to compensate for that wear in such away that the resulting ground valve face is perfectly centeredwhen the valve is back in the engine.Some valve manufacturers design their valves with a taperedstem. Because of the unique way The Kwik-Way Chuck grabs thevalve stem, taper has no influence on the precision of thepositioning of the valve in the chuck. Other Valve RefacerChucks may cause the valve to tilt in the chuck. Without a wayto compensate for valve stem taper, you cannot reface the valvewith the same amount of accuracy as with a Kwik-Way machine.The Kwik-Way Chuck is air activated. You simply push a buttonthat will release the two sets of balls and allow you to insertthe valve. You will have a range of 4mm to 14.3mm with thestandard or high perfermance valve chuck.Another type if chuck used on other machines is a collet chuck.To give you the range of 4mm to 14.3mm you would need at least 5or as many as 9 different collets to cover that range. As younow know, with the SVS II, there is no change over required forvarious stem diameters. And as you change collets there can beproblems with repeatability because you can put the collet inthe receiver with dirt or grit between the receiver and thecollet. In that case, you will get inaccuracy. Also, if you havea tapered valve, the collet will not compress to the sametension at both points so again with a collet chuck and atapered valve you get inaccuracy. The same is true with an out-of-round valve. Because the colletwants to compress uniformly around the circumference of thestem. The bottom line is that the other chucks grab the valvestem using a greater amount of the valve surface, which can be aproblem if there are any irregularities in that valve.The SVS II D comes standard with tip grinding and rockergrinding capability. It can also chamfer tips. There are nooptional accessories necessary to perform these functions.Unlike with other machines where you will find that you have topurchase additional accessories in order to do these other jobsor to get the same amount of valve stem diameter range as theKwik-Way SVS II Deluxe Valve Refacer.You can transition from valve refacing to tip grinding or rockerarm grinding operations for shaft mounted types of rockers inless than minutes. And it's all standard with the machine.Kwik-Way Valve Grinding Wheels are very reasonably priced. Ourwheels are formulated and manufactured by one of the largestmanufacturers of grinding wheels in the world and they aredesigned specifically for our machines. Kwik-Way offers varioustypes of wheels. We have general purpose, finishing, titanium,and hard alloy, so no matter what type of material comes intoyour shop you are going to be able to handle it.To change and redress a wheel on the SVS II Deluxe machine onlytakes about 2 minutes. We find that our general purpose wheel issufficient for most operations, but of course, if you get a highperformance valve or titanium alloy valve, you will need tochange to a different grinding wheel.We also offer a Valve Cabinet designed specifically for the SVSII D machine. The footprint of the cabinet allows for a goodergonomic workstation. With excellent storage below in thecabinet. We find that some people already have areas in theirshop that they have a station designed for and as long as thebench is adequate to support the weight of the machine it willwork fine.The SVS II Deluxe Valve Refacer is sold all over the world.Kwik-Way is by far the largest provider of valve equipment inthe entire world. We have various voltages available and alsovarious chuck capacities. The SVS II Deluxe Valve Refacer comes with a unique warranty wecall the 5-2-1 warranty. The base of the unit is warranted for 5years, all other parts for 2 years and the first year everythingis warranted, parts, labor and electrics. We also have aexclusive 3 year limited warranty on the Chuck. We warrant itagainst loss of accuracy. Most all Funny and Top Fuel Race Teams are using a Kwik-WayValve Machine. If you look at their trailers you will find theyhave Kwik-Way valve grinders on them. The only equipment theytrust for regrinding high performance engine valves is aKwik-Way machine. And while many companies will give theirequipment to these types of organizations in exchange for thepromotional value, Kwik-Way does not. So if a high performanceshop is using a Kwik-Way machine it is by their choice and theypaid to have that machine.You can find more information about the SVS II Deluxe ValveRefacer at http://www.kwik-way.com
