<VV> How much Gear Lube in Manual Transmission & Transaxle ?

[Charles Lee]

My anecdotal test of transaxle capacity:

The Rampside with a 140/4-speed had Gear Lube polluted with water in the
Transmission & Transaxle.

So, I drained it all out using the plugs at the lowest points in each, which
left a tiny bit it the bottom of each?

This car did not have a fill tube up above, so I improved by running 3' of
3/8" fuel line up into the engine compartment.

I had thought it would oil would flow from the diff to the trans but when I
filled the diff until it dripped from the fill port it had taken slightly
less than 2 quarts.

I then I filled the trans at its fill port until it started to drip from the
fill port and it took slightly 1 1/2 quarts.

So, accounting for about 1/2 quart that did not drain out it appears to have
a total capacity of about 4 quarts?

Not very scientific, but pretty close to what we'd expect?

PS: The car was level so it would be better to raise the back to drain more
out?

Charles Lee


-----Original Message-----
From: VirtualVairs [mailto:virtualvairs-bounces at corvair.org] On Behalf Of
Dale Dewald via VirtualVairs
Sent: Wednesday, August 02, 2017 1:13 PM
To: virtualvairs at corvair.org
Subject: Re: <VV> Where to buy GL4 80w90 gear oil locally?

On 8/2/2017 09:21, Billsmileyiii wrote:
> Hello all,
> My recently purchased 1961 shop manual says it is 5 qts. Is the product
> (GL4 80w90 gear oil) preferred over the SAE80 "MULTIPURPOSE" gear
> lubricant recommended in the shop manual? I am a "newbie" who left
> the garage in 1962!
> Our 1963 corvair convertible may never have had the lubricant levels
> checked since the sixties!! It has had very limited mileage since then.
> What are the warning signs of inadequate levels or deteriorated gear oil?
> I am now in the process of providing better care of this vehicle but will
> need a lot of questions answered. Incidently, my wife bought this car
> as a new vehicle in 1963
Hello Bill,
I know it is kind of pricey, but Amsoil's GL-4 Manual Transmission & 
Transaxle Gear Lube 75W-90, product code MTG, is excellent for the 
shared transmission/differential of manual transmission Corvairs.  If 
your car has a Powerglide, then any GL-5 lube will work fine in the 
differential only.
Look up your local Amsoil dealer or go to online to find the nearest 
dealer to you.  I bet one of them nearby has this in stock.
Dale Dewald
Hancock, MI
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