For all you people worried about that first start-up with your new cam, here's an idea, If you are not already using coated cam bearings, I will coat your new cam bearings and the cam for $60. The cam will have all the bearing journals, lobes, and dist gear coated. This really helps on the initial breakin. The biggest problem I see is improper lubrication for start-up, that is what usually does the damage. Cam alone $30. If you guys are not using dry film coatings yet, my question is why not? Coatings have been proven for years and are used in all forms of racing, why not spend a little extra on your next rebuid. Jim Burek P.A.E. ENTERPRISES
I think that's a great idea Jim! Where was it a couple of months ago, before I dyno'ed my engine???:laugh: I can see a the time where the (speed) machine shops, coat all bearings, crank, cam, timing chain, gears, oil pump, floating pins & rod ends, bottom of lifters.... Kinda makes sence to coat the crank journals after polishing, unless the coating is just not that effective on the crank.o No: I don't see how the coating could hurt though...:TU:
Jim, Where do you go to have this type of coating done? That's one of the reasons I haven't thought about using it- I don't know where to go, and what is good and what isn't. Any more info you could give us?
There are quite a few places around the country that do coatings. I do coatings here in house. For maximum friction reduction, you coat only one item, for instance just the bearings. More maximun life, you cat both items, for instance bearings and crank. If you are only doing one item, you do the softer of the 2 , ie, bearings as opposed to doing cranks. Jim Burek P.A.E. ENTERPRISES
Steve, I did my own main rod bearingss, oil pump gears and lifter bodies (exterior body only) and pistons with DFL. Also ceramic coated the piston crowns after massaging them. Techline coatings sells water based DFL and Ceramic coatings for internal engine components as do other vendors. To do this you need: CLEAN compressed air @ 40 psi Small touch up gun Coatings Acetone or other non petroleum based cleaner (see supplier spec) 150 grit aluminum oxide media small media blaster Oven capable of holding your components and baking to 350*F. Do not use solvent based coatings in any oven that you will prepare food in. Basic overview: Prepare the surface such as as any polishing and metal removal. Clean the material Lightly blast the material to be treated with aluminum oxide Clean the material Spray the product Air cure Heat treat in the oven. If you are not interested in the DIY method Jim Burek and several other vendors perform this service. George
Thanks for the info. I'm going to look into doing this on the motor that will (hopefully) be going together soon.
