<VV> Is VV messing with me ?

Sun Oct 17 00:12:07 EDT 2010

Is VV messing with me ?

This is the 3rd (!!!) time I got this message, first at 11:42 AM (from Mark 
and Mike), then at 6:16 PM (from just Mark), and now again at 8:17 PM (from 
Mark and Mike again).

Looks like exactly the same message, three times now ?

Weird !

Charlie

----- Original Message ----- 
From: "Mark Durham" <62vair at gmail.com>
To: "Michael Kovacs" <kovacsmj at sbcglobal.net>
Cc: "Charles Lee" <Chaz at properproper.com>; "VV" <virtualvairs at corvair.org>
Sent: Saturday, October 16, 2010 11:42 AM
Subject: Re: <VV> Diagnose engine "knock" ? valve seat damage

> MIke is right, should have mentioned that if you have 0 compression that
> usually is a stuck or burned valve or piston/ring damage.
> Since you have the head off, lock down the cylinders by putting some tight
> fitting hose on the head studs and pull the other plugs and pull the 
> engine
> through so you can see the condition of the cylinder walls, one at a time.
> Compare them. . Wear will show up more at the top where there may be a
> difference between where the rings run and at the top where they don't.
> Clean that with some crocus cloth to get any carbon off and see if there 
> is
> a ridge there. Look closely at the three piston heads. You had one with no
> compression, two with compression. Look for deep vertical scratches in the
> cylinder wall (broken ring) damage to the head, difference in the 
> coloring,
> amount of carbon?
>
> Also a cylinder using oil will usually coke up on the valve stems and back
> of the valves. I would think the cylinder with low compression would have
> more, as it probably has been using more oil longer, but if the engine is
> old, all three (six) would be that way.
> Got a digital camera? Take a picture and post it for us.
> Off to build shelves in my daughters garage.
>
> Mark Durham
>
> On Sat, Oct 16, 2010 at 10:30 AM, Michael Kovacs 
> <kovacsmj at sbcglobal.net>wrote:
>
>> Charlie,
>>  You need a valve remover tool. Just keep track of which valve goes 
>> where.
>> Don't
>> loose the keepers. A smack with a mallet will sometimes loosen up on the
>> keepers
>> that wont let go of.  You can check the valve looseness by just pushing 
>> the
>> valve back into the guide. It may take a good machine shop to really 
>> check
>> this
>> condition. Hope you just need a valve seat cleaning and a regrind.
>>
>> You can check for valve leakage by reinserting both valves in the head 
>> and
>> adding some light oil like kerosene to the head to see where any 
>> potential
>> leakage is. O in # 3? I cant see why.
>>
>>  Hope others will add to this basic stuff. Where do you live? Any
>> experienced
>> corvair people near you?MIKE KOVACS
>>
>>
>>
>>
>> ----- Original Message ----
>> From: Charles Lee <Chaz at ProperProper.com>
>> To: shortle <shortle556 at earthlink.net>; virtualvairs at corvair.org
>> Sent: Sat, October 16, 2010 1:35:34 AM
>> Subject: Re: <VV> Diagnose engine "knock" ? valve seat damage
>>
>> Wow !  I would have bet that # 3 would have an obvious indication of 
>> valve
>> seat damage, but it does not show any valve seat displacement ?
>>
>> www.yourbuyersinn.com/Cars/Corvair/1967MonzaCylinderHeadRemoval.htm#CombustionChambers
>>
>>
>> I'm still convinced that #3 vale seat was the cause of my "knocking" when
>> the engine wasn't even warm enough to do that ?
>> Would the area around the valve be worn if the seat was loose ?
>>
>> The combustion chamber is wet though and the top of # 1 and # 5 are chock
>> full of carbon, probably from messing with the carburetors, trying to get
>> them right.
>>
>> Any ideas ?  I've never removed valves before, so what do I need to know
>> that will surprise me if I try this ?
>>
>> Thanks again guys !
>> Charlie
>>
>>
>>
>> ----- Original Message -----
>> From: "shortle" <shortle556 at earthlink.net>
>> To: "Charles Lee" <Chaz at ProperProper.com>; <virtualvairs at corvair.org>
>> Sent: Friday, October 15, 2010 5:41 AM
>> Subject: Re: <VV> Diagnose engine "knock" ?
>>
>>
>> > Odds: Even money. Did you have good compression in all 6 cylinders 
>> > before
>> > you replaced the parking brake cable?
>> > Timothy Shortle in Durango Colorado
>> >
>> >
>> > -----Original Message-----
>> >>From: Charles Lee <Chaz at ProperProper.com>
>> >>Sent: Oct 15, 2010 12:43 AM
>> >>To: virtualvairs at corvair.org
>> >>Subject: <VV> Diagnose engine "knock" ?
>> >>
>> >>What are the odds that I'll find a dislodged valve seat on #3 ?
>> >>
>> >>Charlie
>> >>
>>
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