Looking for a Cam

[TheCouzin]

Hey,

Im looking for a cam with the same specs as the one I have. And I dont really want to use comp anymore as the one I have is already delaminating the coating off. Specs are below looking for something that is not going to give me any issues.

Comp Cams Extreme Energy Hydraulic Roller
Part number 23-710-9
23-710-9
XR274HR-10
224/230 @ .050 duration
.538/.534 lift
110 lobe separation

 

[gtxdana]

What coating is delaminating? That's a billet steel cam that isn't coated with anything. Heat treated, yes. Coated, no.

 

[PRHeads]

It’ll be interesting to see what’s really happening here.

Gonna need pics.

 

[TheCouzin]

Pic of cam and roller lifter

 

[PRHeads]

Exactly what lifters are those?

My first impression is that the lifters aren’t tracking 100% true.

Was the cam thrust clearance set to around .010” or less?

Heads/rockers/spring pressures?

This one looks like there’s some spalling going on:
(Looks to be some discoloration from heat, I’m thinking the wheel was skidding, which I look at as a lifter failure)

 

[TheCouzin]

Lifters are comp 8921-16.

Lifter Style: Hydraulic roller
Lifter Link Bars Included: Yes
Lifter Outside Diameter (in.): 0.904 in.
Lifter Offset: None
Link Bar Type: Vertical
Lifter Seat Height (in.): 2.300 in.
Quantity: Sold as a set of 16

 

[PRHeads]

Cam has proper thrust clearance?

How many miles on it?

 

[TheCouzin]

Cam has proper thrust clearance?

How many miles on it?

Im unsure of thrust clearance. Haven't taken it out yet. Should have engine out by Sunday and will be able to take some measurements.

 

[TheCouzin]

Cam has proper thrust clearance?

How many miles on it?

Sorry mileage is unknown as im second owner on this build. Previous owner said not many km on it. But they also never drove the car too.

 

[PRHeads]

My concern with the thrust is that someone knew enough to actually address it.
It may not be an issue at all.

 

[Rebelrouser]

call Jones cams and have him grind you one. They call him the cam king for a reason. jonescams@bellsouth.net

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[lewtot184]

i think it's contaminants in the oil. maybe something is falling apart on the inside or just put together dirty. i don't see tracking issues, but my old eyes aren't what they use to be. i do get leary about peoples setting end play methods.

 

[gtxdana]

It looks like the bearing/wheel on that one lifter was not real happy looking at the wear pattern across the face of the lifter (not the scratches around the circumference of the wheel).