Is This Cam Safe To Use?

General engine tech -- Drag Racing to Circle Track

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Blown & Injected
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Is This Cam Safe To Use?

Post by Blown & Injected » Wed Jul 25, 2018 2:37 pm

The cam is fine except for this one spot on the base of a lobe. It seems like a defect in the metal - it is not a rust spot. I have not yet inspected the roller lifter that was riding on that lobe. I am also nervous about reusing the roller lifters on a new cam.

The new parts were installed about 10 years ago and the car has been sitting for a couple of years and then maybe just a couple of tanks of gas per year. So not used much but not new either.

Thanks for taking a look.
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rp930
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Re: Is This Cam Safe To Use?

Post by rp930 » Wed Jul 25, 2018 2:44 pm

Looks like the start of a bigger problem. Personally I would not.

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Re: Is This Cam Safe To Use?

Post by Frankshaft » Wed Jul 25, 2018 3:03 pm

I agree, that's just going to start opening up as.it runs. I am assuming a hydraulic roller by the looks of the lobe, and it's a cast core

Blown & Injected
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Re: Is This Cam Safe To Use?

Post by Blown & Injected » Thu Oct 04, 2018 3:04 pm

update:

Machine shop said it looks like a stain from something dripping on it and because it is on the back side, it will be fine...But he just glanced at it. Blow up a pic and it looks like it will open up - I got a new cam....now if I could only find an engine cam plug for the back of the block

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Re: Is This Cam Safe To Use?

Post by Jim2527 » Thu Oct 04, 2018 3:32 pm

Image

Newold1
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Re: Is This Cam Safe To Use?

Post by Newold1 » Thu Oct 04, 2018 4:04 pm

NO ! X2
The Older I Get, The Dumber I Get :wink:

lefty o
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Re: Is This Cam Safe To Use?

Post by lefty o » Thu Oct 04, 2018 4:21 pm

thats not a stain. run your fingernail over it, you'll feel it.

F-BIRD'88
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Re: Is This Cam Safe To Use?

Post by F-BIRD'88 » Thu Oct 04, 2018 4:24 pm

I'd retire that one to the pile.

rp930
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Re: Is This Cam Safe To Use?

Post by rp930 » Thu Oct 04, 2018 5:33 pm

Man Cave art.

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Re: Is This Cam Safe To Use?

Post by ProPower engines » Thu Oct 04, 2018 9:01 pm

.Thanks for taking a look.
[/quote]

NO
Just toss it in the scrap bin. Its had its time. No point taking a chance your self put it on ebay some low dollar claimer guy will use it for a nite no big deal there.
Real Race Cars Don't Have Doors

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Re: Is This Cam Safe To Use?

Post by modok » Thu Oct 04, 2018 9:34 pm

Stone it and run it.
What could go wrong, it's the base circle
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af2
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Re: Is This Cam Safe To Use?

Post by af2 » Thu Oct 04, 2018 9:55 pm

modok wrote:
Thu Oct 04, 2018 9:34 pm
Stone it and run it.
What could go wrong, it's the base circle
Hmm with how much pressure?
GURU is only a name.
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Re: Is This Cam Safe To Use?

Post by sc2dave » Thu Oct 04, 2018 10:03 pm

lefty o wrote:
Thu Oct 04, 2018 4:21 pm
thats not a stain. run your fingernail over it, you'll feel it.
Heck, i could feel it on my screen!! Just Kidding!

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Re: Is This Cam Safe To Use?

Post by af2 » Thu Oct 04, 2018 10:04 pm

sc2dave wrote:
Thu Oct 04, 2018 10:03 pm
lefty o wrote:
Thu Oct 04, 2018 4:21 pm
thats not a stain. run your fingernail over it, you'll feel it.
Heck, i could feel it on my screen!! Just Kidding!
ME to!!
GURU is only a name.
Adam

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Re: Is This Cam Safe To Use?

Post by lefty o » Thu Oct 04, 2018 10:40 pm

modok wrote:
Thu Oct 04, 2018 9:34 pm
Stone it and run it.
What could go wrong, it's the base circle
plenty will go wrong. i wouldnt put that in a lawn mower.

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