Cam Lobe Pictures, Need Analysis Help

concobra · #1 (**permalink**) 09-29-2011, 05:45 PM

Hello wroger55

My 2 cents worth

I don't think the problem is all that bad. I have ran rollers for ten years plus and seen this kind of pattern on many good lobes. As long as it is not diggin into the lobe I have not had a problem. It may be just the lifter spinning on the lobe. And a normal wear pattern.

As far as the blueing. My experience is if the roller stops spinning it will tear up the lobe extremely fast and you will maybe see some blueing on the lobe itself. But more than likely the gouging of the hardened roller grinds through the heat bluing faster than the blueing can remain on the lobe. I don't see any signs of that. I believe the discoloration between the lobes is due to the heat treating billet roller cams get to harden the lobes. The dark color beside the lobe, not on it, could just be the copper discoloring during the heat treating operation when the cam core is made. Copper is used on the core of the cam to keep it from hardening as hard as the lobe does to keep the shaft from becoming brittle. I have bought many new cams with this coloring issue here defined as bluing already there.

Hey I could be wrong here. But testing the roller is certainly called for. One note of importance. If you do test your lifter DO NOT clean it in any solvent. Leave the oil on it, it was running in. IF you have to take the rollers out of your engine. Place them in the cleanest container you can and pour oil over them completely then cover the container.

You might consider giving Scott Main a call at Cam Research. And send him the pictures. He is a great guy and will know how to help you. ( After all he is a cam expert unlike me) He can also grind you a new cam if needed. He only does Ford cams and has been a contender in Engine Masters for years. He does all my cams for me and is always spot on when you give him good information to work with.

If you want Scotts phone # you can give me your number and I will call you after I speak to him and get his OK. I will give you his #.

wrogers55 · #2 (**permalink**) 10-01-2011, 01:47 PM

Anyone know where a CompCam is marked for ID/model number?

blykins · #3 (**permalink**) 10-01-2011, 01:50 PM

On the end....should be a grind number or a set of lobe numbers.

wrogers55 · #4 (**permalink**) 11-06-2011, 10:24 PM

Finally got the cam out of my little 418 and need help with identification. Supposed to be a Comp Cam and it is a hydraulic roller. I can't find the numbers on CC's consumer site. Can someone decipher the numbers and possible manufacturer.

Easier to read off of the camshaft. The numbers are:

3318F / 3319F HR112.0
CC (or LL at the center right)
251668
G2009-05 (that could be 0.5, but prob. not)

Looks like it was installed advanced 4 degrees on the crank sprocket which I suppose is +2 at the cam. Was a very strong cam.

I'll report more on what I'm finding on the lobes and rollers as I go, but I'm going to replace the cam and whatever else I need to anyway in an abundance of caution. I need to get something on order and hoping Brent is one of the responders.

blykins · #5 (**permalink**) 11-07-2011, 01:49 AM

It's a pretty healthy cam. The 3318 and the 3319 are the lobe numbers, which translates to:

248/254, .638/.658" lift (with a 1.7RR) and it was ground on a 112 LSA.

These are Xtreme Energy lobes and I'm sure it was a custom cam as the Xtreme cams don't come with a longer LSA like that. I've had Comp send custom cams with the LSA equalling the ICL (straight up) and then I've had them send them 4 degrees advanced, so it's hard to say without degreeing it where the ICL actually is on yours.

I like that kind of combination, a good amount of duration, but a longer lobe center to help with low manners. However, that's a lot of duration for a hydraulic roller and I don't know if you'd really be able to use most of the cam's potential without floating the valves.

Are you still planning on swapping to a solid roller? Or you want to stay hydraulic?