American Motorcycle Dealer AMD 242 September 2019 | Page 33

O Engine assembly Ultima cylinder heads fixtures that insure a perfectly square cylinder top to bottom. All the 4.25 inchers are baked and slowly cooled to stress-relieve the liner, with the 3.875" and 4" bore cylinders having a thicker liner (therefore stress-relieving is not necessary). Cylinder bores are held to very tight tolerances within +/- .0001". "Ultima cylinder heads are machined to tight tolerances also," says Brian. "All valve seats are cut in- house on Newen fixed turning machines. Every head is then assembled using high quality components from Pac Racing, Ferrera and AV&V. All heads use chromoly spring retainers. The 140" CNC- ported heads use titanium spring retainers. Compression releases are standard in all of our heads and after assembly every head is vacuum tested to insure the valves seal completely." All sub-assemblies then come together on the assembly line, where the short block is then assembled, with every engine getting a high-volume billet oil pump. Camshafts for Ultima engines are www.AMDchampionship.com manufactured and ground by Andrews to Ultima specs. Johnson hydraulic roller lifters are then installed in the lifter blocks with chrome or black powder-coated lifter blocks, cam cover and Ultima pre-programed ignition module installed to finish off the lower end. "The upper end then starts to come together, with the cylinders matched to top quality forged aluminum pistons from Mahle. Multi-layer steel head gaskets and Colony head bolts seal up the cylinders and heads. The intake manifold is now installed and vacuum-tested to insure proper seal, and Ultima chrome or black rocker boxes with our patented stainless steel reed assembly top off the engine. Ultima American made 4140 adjustable pushrods carry the load from the lifters to the 4140 forged steel roller rockers. "Then the engine reaches the test stand. At this point it is run with an electric motor to prime the oiling system. Oil pressure and compression are checked at this point and after passing these tests, the carburetor is mated to the intake manifold. The motor is then cleaned up and inspected for leaks. Finally, the motor is bagged and boxed in sturdy spray foam packing and ready to ship to your door." Brian went on to explain that having all these capabilities in-house puts them in a superior position to be able to let dealers share in their experience and expertise. "Basically, there isn't much we can't do. Our engine rebuilding service is available to our dealers worldwide. By offering this service, the dealer's customer gets a quality rebuild complete with a 6- month, 6,000 mile warranty. "However, it doesn't stop there. We are also offering this service for S&S and Harley-Davidson Evo V-twins as well - adding another option to get that motor rebuilt correctly, and at an unbeatable price." Ultima offers this service for all Ultima engines, 80" thru 140", and select Big Twin Evolution style engines and the Twin Cam "A". Ultima machine shop services extend from the crankshaft and cases to the cylinders and heads. This includes, for Evo models, "True and Rebuild" for the Evo crankshaft; disassemble inspect, fit new rod set to new crankpin and bearings, balance and reassemble with sprocket or pinion shaft as an additional option. "We will bore the case for big bore cylinders (Evo and Shovelhead) and recondition the deck base gasket surfaces. MIDWEST MOTORCYCLE SUPPLY Pevely, Missouri, USA Tel: 636 931 3200 [email protected] www.MidwestmcDealerExpress.com www.ultimaproducts.com AMERICAN MOTORCYCLE DEALER - SEPTEMBER 2019 33