<VV> Newbie mechanical Weird FEAR

[Frank DuVal]

Well Matt,

Count yourself lucky.

I've dropped 5 in my 64 Spyder with a 145 cu in motor. I need to finish 
that correct 164 cu in engine....

I dropped two driving a friend's 140 with turbo added around a downtown 
city block!

I have repaired (remove head, inspect damage and send to another shop 
for welding and new seat), 95's, 110's, 140's, 150's and 180's for 
customers during the 80's and 90's. It's really fun when there is no 
aluminum left around the seat. I mean the seat is still hanging on the 
valve, but no how can you move the seat to touch any aluminum. You would 
think the driver would have looked into the miss before that much damage 
could ocur. And this was a 64 110 Monza conv.

My recepie for dropping seats on command is to drive up a mountain hard 
and coast down the other side in gear. This gets the head really hot and 
the cool air sucking past the intake seat will shrink it.

And neither myself or any customers have died on a toilet seat. Well, at 
least not yet! gggg

As you said, some SBC parts in Corvair engine, and many look alikes.

Frank DuVal

Matt Nall wrote:

> Never fear!!   The odds of you dying on the toilet are greater than 
> loosing a valve seat....
>
> It does happen..but mainly to specific  situations.....  engine has 
> been severly overheated.....  high rpm performance engines...
>
> I've only lost 3 in 34 years......   2 on a 140 engine that the 
> previous owner was in need of a "rebuild"..not  the engine..
>
> My Corvair Boat........previous 3 owners all got tired of it running 
> at 600F and melting plugwires...
> ---------------------------------------------------------------------
>
>
> Vairs are not weird... DIFFERENT LOOKING.....but use similar parts to 
> a SBC! Really!
>
> The big thing is AIR Cooling....and 2 or 4 carbs...
>
> Both "no brainers", after you understand them...
>
> Air cooled runs cooler than Water cooled....just cannot have any Hot 
> air recirculating back into the engine compartment.
>
> To COOL a hot engine..you rev it up!   shift down a gear..
>
> You just need to think of the 6 cylinder engine as  2 -  3 cylinder 
> engines when working with the carbs.....
>
> The carbs???   Just a  1 bbl  Rochester 2GC  1/2 the parts...
>
> Syncronizing / Balancing ??    Super simple.....after you "understand" 
> what you are doing. A 3 minute job!
>
>
>
>
> Matt Nall
> All Vairs!
> http://members.aol.com/patiomatt
> Lots of Corvair Technical info!
>
> ----- Original Message ----- From: "Jeff Wilson" <jwilson at unctv.org>
>
>> Okay, I like to think of myself as semi-literate in auto mechanical 
>> stuff.
>> I can usually divine what might be wrong with an engine even if I can't
>> always fix it myself.
>>
>> But I feel quite lost at sea now that I've entered in the Corvair world.
>> Boy, these things are weird!
>> I feel like I'm having to un-learn about half of everthing I ever 
>> learned
>> about good old-fashioned small-blocks!
>>
>> At term I hear tossed-out a lot on this list and elsewhere is "dropped
>> valve" (or valve seat sometimes).
>> Sounds like a common/ recurring problem.
>>
>> I never to my recollection heard of this malady in the small-block
>> world.
>>
>> What is it?  How common is it?  Is there a way to prevent it or at
>> least lessen it's likelihood?  Should I live in fear that my engine is
>> going to "drop a valve" at any minute?
>
>
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