Assuming valve springs are set up the same, spalling on the intake only suggests it's an issue of the larger forces involved due to the heavier intake valve. I doubt the heat treat or core is any different intake vs exhaust so we're back to an insufficient heat treat or material for the...
I'm with you. I've hand-packed the bearings on my flat trailer since I bought it used in 1986. Never had an issue with it. Now with my enclosed hauler, I've used the EZ-Lube method for the first greasing and will likely hand pack them when they're ready for the 2nd greasing. I figure I'll...
I've got EZ lube hubs on my enclosed car hauler trailer and just greased them for the 1st time at about 6800 miles. It took quite a bit of grease this 1st time as you're filling up the hub cavity when you do it. And these are 6000# axles so they have the bigger bearings and hubs. Roughly 1...
Just a guess but most tracks will (rightfully) insist on an overflow bottle. On a temporary basis, any type of old plastic bottle may suffice. That is IF tech even lifts the hood like they should.
Oh, and double throttle return springs are in EVERYBODY'S best interest!
I should have added that, like your car, my avatar has the fully adjustable SPC UCA's so doing this at home is quite the necessity to me. And by having the gauge magnetically attach to the hub as I noted in my post above, repeatable results were quite easy once I got the knack of how to adjust...
Most importantly, go over your safety checklist: wheel nuts torqued, suspension bolts tight, fire extinguisher in car, oil level full, etc, etc. Go get'm and have a blast!!
I have a Joe's Racing caster/camber gauge. The avatar has Weld ProStar wheels. All I have to do is remove the center caps then the dust caps and the gauge magnetically attaches to the hub without issue.
For turning plates, this hack uses heavy, thick garbage bags folded over multiple times...
Can't tell exactly if that damage is on the nose of the cam or the front or back side. From the pic, it looks like what we would call spalling which is due to excessive Hertz stresses from too much spring pressure for the material and/or incorrect or insufficiant heat treat. For example, iron...