Cam lobe condition.
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Cam lobe condition.
I have a very mild Crane hyd flat tappet cam with about 15,000 miles on it. I’m refreshing the bottom end of this 454 and upon cam inspection, noticed that the cast metal is beginning to show on 4 of the lobes. Is this normal wear? I would like to reuse this cam. The lifters on said lobes look great and have crowns. I didn’t
measure the lobes nor did i check for taper. I guess what I’m asking is, is it normal to have the porous metal beginning to show on the lobe? I will attach a photo. Thanks in advance for your input.
measure the lobes nor did i check for taper. I guess what I’m asking is, is it normal to have the porous metal beginning to show on the lobe? I will attach a photo. Thanks in advance for your input.
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Re: Cam lobe condition.
And no taper when ground
Heat is energy, energy is horsepower...but you gotta control the heat.
-Carl
-Carl
Re: Cam lobe condition.
Wear pattern right down the center.
Of course........ that’s not how it should be.
Of course........ that’s not how it should be.
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Somewhat handy with a die grinder.
Re: Cam lobe condition.
With quality of HFT lifter's being a question mark these days and if all your lifter's have a crown still visible with a machinist square and a bright light , sending them for a regrind might be a good idea. I kept the lifter's from my 84 Corvette, with the hard end cap because they are perfect with 80k , cam worn .010" -.015", going to send out for grind. At least I know they'll be good for a rebuild.
Re: Cam lobe condition.
What actually causes to nose of flat tappets to wear like that early in their life?
Is it oil quality or lubrication break down
Or spring pressure related
Is it oil quality or lubrication break down
Or spring pressure related
3370lb Sedan 9.89@136MPH 358chevN/A