<VV> Carburetor problem?
S M
shaun_mcgarvey at shaw.ca
Sun Jul 26 10:51:52 EDT 2015
Thanks Frank!
----- Original Message -----
From: frankcb at aol.com
To: "shaun mcgarvey" <shaun_mcgarvey at shaw.ca>, 62vair at gmail.com
Cc: virtualvairs at corvair.org, patiomatt at aol.com
Sent: Saturday, July 25, 2015 2:30:01 PM
Subject: Re: <VV> Carburetor problem?
Shaun,
Methyl Hydrate is usually known as "methanol" or "methyl alcohol" (at least in the USA) and is the normal ingredient added to ethyl alcohol to make it "denatured" (or poisonous to drink). While it certainly will absorb the water in gasoline, Iso-propanol is a lot more effective assuming you can find it without a lot of water already added to it. If you buy it as "rubbing alcohol" it usually has about 30% water already in it.
Frank Burkhard
Boonton, NJ
-----Original Message-----
From: S M via VirtualVairs <virtualvairs at corvair.org>
To: MarK Durham <62vair at gmail.com>
Cc: Virtual Vairs <virtualvairs at corvair.org>; Matt Nall <patiomatt at aol.com>
Sent: Fri, Jul 24, 2015 9:29 am
Subject: Re: <VV> Carburetor problem?
You don't set the balance with the idle mixture screws! Set them both at 1-1/2
turns out to start and don't stray from that by more than 1/2 turn generally...
usually out a little more. I'd count the turns in until they're seated gently to
see where they are now, before removing them. It doesn't mean they're set
properly, I'm just curious.
Balance at idle is set by the idle speed
screws. Balance at 2000rpm is set with the adjustable link on the left carb.
I agree with Matt that the left carb seems to be suffering from water in
the gas, but will add that the carbs likely need balancing. It wouldn't hurt to
do a rebuild on both, using the CORSA Tech Guide to make bench adjustments on
them before reinstalling.
Put a quart of Methyl Hydrate in a half tank of
gas to alleviate the water issue.
yea, Vairily ... Shaun
-----
Original Message -----
From: "MarK Durham via VirtualVairs"
< virtualvairs at corvair.org >
To: "Matt Nall" < patiomatt at aol.com >
Cc: "Virtual
Vairs" < virtualvairs at corvair.org >
Sent: Thursday, July 23, 2015 6:46:24 PM
Subject: Re: <VV> Carburetor problem?
I agree with Matt, sounds like a
carb problem. When you back out the idle
mixture screw, make sure you screw it
back in the same, and I would do both
carbs. When I did mine, gas shot
straight up out of the carb throat, so
stand back!
Set the screws as
before, of if you don't remember set at 2 1/2 turns out
then adjust for best
rise and balance with the unisync, do this a couple of
times, each time
getting the tune finer and more perfect.
Mark Durham
Hauser, Idaho
62
Monza coupe Red/Red 4 speed
On Thu, Jul 23, 2015 at 2:51 PM, Matt Nall via
VirtualVairs < virtualvairs at corvair.org > wrote:
> -----Original
Message-----
> From: Jim Waddell via VirtualVairs < virtualvairs at corvair.org >
>
>
> Until a few days ago my 65 Monza Convertible (110
> engine,
>
Powerglide transmission, 64,000 miles) ran just fine.
> I guess I made
> her
mad at me by pulling the right front wheel
> and brake drum to see if I could
> see what was making that brake
> grab occasionally. Her response is from
the
> engine at the opposite end
> of the car!
> At half throttle and
above, she seems
> to behave just fine.
>
>
>
====================================================================================
>
>
> Sure sounds like moisture in the gasoline......... on the offending
carb
> [ that runs better when you spray cleaner in ] remove the idle MIXTURE
> SCREW and blow low pressure air in... then replace / rest I/M screw...
>
>
> If it was doing just the opposite, not running well at higher rpm....
then
> we would tell you to rev the engine and put your hand over the
carb.....
> thereby helping to clean out the Mainjet.
>
>
> Good luck!
>
>
> ps the rubber gaskets on top will not hurt anything if pieces fall
into
> carb throats. One on each side this time!!! ggg
>
>
> Matt Nall
> Charleston, Oregon
> http://tinyurl.com/The-Corvair-Patio >
> http://tinyurl.com/Matts-Tech-Pages >
>
>
>
>
>
>
>
>
>
>
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