We have been asked on the procedures on how we build our engines and our dyno process. CMW Engine Building Procedure Cylinder Block Blueprinting Block Inspected Prior To Machining Block Precision Honed w\ Torque Plates Each Cylinder Re-Checked After Power Honing Process. Deck surfaces are machined in reference to the crankshaft centerline Inside of Blocked Prepped Hand de-burred, bolt holes are checked and re-tapped Power Clean Block Re-Check All Tolorances Tanking Block Engine Mock-Up Re-Check Cylinder bore diameter lifter bore diameter Piston skirt taper Piston diameter Piston to wall clearance Deck height of block Piston ring end gap Bearing clearances Rod side clearance Crankshaft end play Degree Camshaft in Block/ Re-check camshaft on Cam Doctor Engine Component Preparation All internal parts are de-burred, hand washed & inspected Pistons, pins and connecting rods - pin fit to specification Complete Rotating Assembly - computer balanced Final Engine AssemblyFastener Assembly Lube Connecting Rod Fasteners - Apply on threads and under connecting rod bolt surface It is good practice to run every fastener with lube all the way in the threaded area by hand and then recoat the fastener before final assembly Main Studs / Nuts / Washers – Apply on threads, under washers and nuts For proper assembly make sure that all threaded areas are lubed. This process keeps repeatable clamping load and stretch of the fastener. Engine Assembly Lube Main Bearings - Apply on both sides of bearing shell The bearing does shuffle in the bearing bores and you do not want to have a dry surface on either side of the bearing. The front side of the bearing is self explanatory. Not applying assembly lube to the back side of the bearing will cause wear to the bearing shell putting shavings of bearing material and rod material into the oil. When you see transfer from the bearing to the bore housing, proves that the wearing problem occurs. Rod Bearings - Apply on both sides of bearings Pistons – Apply on skirts, piston ring grooves & wrist pin bores Piston Rings - Soak or apply generously before installation Soak rings so there is not un-lubricated spots on the rings. Un-lubricated rings will start to micro-weld. Camshafts – Soak or apply generously before installation Making sure the cam bearings are completely lubed. Roller bearing carriages are even more important to lube because it is hard to see if they are completely lubed. Prime oil pump with CMW Engine Assembly Lube Suggest to disassemble oil pump, inspect and then lube. Also make sure the bushing are lubed Valve Seats – Apply to all valve seat surfaces before installing valves Lubing the seat contact area is for engine start up to keep from metal transfer from valve to valve seat. NOTE: USE A TOTAL OF 4 OUNCES OF ENGINE ASSEMBLY FOR ASSEMBLY CMW Extreme Pressure Retainer & Spring Lube Soak Valve Springs / Retainers / Keepers for 2 -3 minutes (Install Wet) Soaking components with CMW Extreme Pressure lubricant prevents micro welding which is a huge problem if installed dry. Lubing the valve springs also increases the life by helping to carry heat away. Lifters – Soak for 2 -3 minute (Install Wet) Make sure the lifer bores are lubed completely. If you DO NOT lube properly you will have high wear problems. The clearances are very critical for correct running of valve train at high rpm. Push Rods – Apply to both ends (Install Wet) CMW Engine Dyno Procedure CMW Pro Series Break-In Oil Break-in engine using CMW Pro Series break-in Oil Run Engine a minimum of 2500 rpm until oil temp is @ 160 deg. F Make moderate engine dyno pulls from 3500-5000 rpm When tuning is correct increase pulls 500 rpm at a time. DO NOT RUN BREAK IN OIL OVER 185 Deg. F Engine break-in is very critical to seat in running components. The oil has key Extreme Pressure ingredients to protect components from scuffing and failing. Run engine until the vacuum is stable. This should not be over 12†of vacuum.
I figured this would be the info you wanted. We got interesting results on different mods on the 6.1l:whistle:
Here's a question that was asked...... If were not using CMW Oil......Do you recommend using a oil additive? Yes, Here's our recommendations: CMW ENGINE OIL ADDITIVE CMW Engine Oil Additive has several high level extreme pressure additives. Because of blended gasoline, CMW Oil Additive is the key to helping support lubricity. The oil additive also shows increases of power and fuel economy. CMW Oil Additive aids the oil to lower oil temps even in high pressure situations. • Pre-Mix Engine Oil Additive to Racing Oil. • For every 6 Quarts of Racing Oil add one 12 ounce bottle of CMW Oil Additive
