[Shotimes] sewing machine sound?

[Leigh Smith]

I would guess yes. Based on old solid-lifter chevy experience. A tightly
lashed chevy would almost be quiet. Or at least whirr. And you could tell it
needed adjusting by the uneven noises. And they could open up .020-.030 in a
week!
Lee

----- Original Message ----- 
From: <bmalach1@nycap.rr.com>
To: <shotimes@autox.team.net>
Sent: Monday, October 31, 2005 3:20 PM
Subject: [Shotimes] sewing machine sound?


> anyone want to confirm for me that when cams are 25% to 50% out of spec
> on the valve lash they will sound like a sewing machine? Got a friends
> car in the garage that makes a racket, and I'm finding intake valves in
> the .008 to .013 range and exhaust valves in the .011 to .016 range.
> These were a SHOnut +20 set of cams installed by a trusted New England
> SHO mechanic, so I know they were installed right.
>
> I thinks I need to look at my own cams and see if they have opened up in
> my car.
>
> Before I go tearing into this engine to reshim the motor I wanted to
> make sure I wasn't missing anything else.
>
> So, outta spec valves sound like a sewing machine? Anyone. I've only
> seen a few cars with a valve or two just barely outta spec, and never
> heard these kinds of noises.
>
> Thanks
>
> Bruce
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