Worn Out Valves Stems

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Jun 17, 2017 | 10:42 PM

#11

Gadgetized

TECH Junkie

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From: Rochester, NY

What oil are you running?

Jun 18, 2017 | 12:25 AM

#12

Blown06

8 Second Truck Club

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Quote:

Originally Posted by Denali08

Can this be caused by low oil level in the engine?

Quote:

Originally Posted by kbracing96

That looks like valve float to me. Been hammering the crap out of those stems! What cam and valve springs are you running and how hard do you turn it?

Quote:

Originally Posted by Denali08

Comp cam 224/230/114 with patriot gold springs.

Rev limiter is 6200 but it rarely hit the limiter with A4 transmission.

I'm switching cam to Isky triple. Hence, I discovered this by chance while doing the cam swap. I'm also replacing piston rings and engine bearings.

Yeah that looks like hammered dog ****, not an oil supply issue, but rather a spring issue. I ran that same cam a long time ago and regularly shifted at 7200 rpm with it. Motor ran strong for about 4 years and never had to pull the valve cover off of it. Only about 4000-5000 street miles during that time, but almost all of it very hard miles and probably 100+ passes at the track. Don't remember what springs I had on it, but when I pulled the motor to sell it, I pulled the valve covers off for the buyer and everything looked brand new. Only thing I did have different was I was running a set of Comp gold race rockers. Just an FYI.