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Found this today on 65 axle/differential
Posted by: corvairne ()
Date: November 07, 2018 02:11PM

Pulled engine over weekend and found the reason for leak today. Any suggestions for someone to go through this for me or who has a rebuilt one. Don't need differential until spring.


Dave Larsen
1965 Corsa convertible 140/4 speed
Omaha NE

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Re: Found this today on 65 axle/differential
Posted by: 2ragtops ()
Date: November 07, 2018 02:13PM

We have no idea where you are located.

Go to Control Center and modify your name and address you will get lots of help and offers that way.

Bob Bauer

Show-Me Corvairs

1966 Monza Convert 140 P/G with A/C, plastic wheel with tele-column am-fm posi-traction
1966 Corsa Convert 180 wood wheel tele-column am-fm sport steering posi-traction
1965 Corsa Coupe Crown V8 mounted mid-body temporarily red lined for repair
House Springs, Missouri

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Re: Found this today on 65 axle/differential
Posted by: steve c goodman ()
Date: November 07, 2018 02:15PM

Do you belong to a local club? Many times
someone will know how to rebuild/set up
the gears.

Second give your location, shipping may come
into play.

best wishes, Steve
Rear Engine Spec. Inc. Golden, Colo.

1962 spyder 3.0L turbo---1965 Crown V8
1967 monza 110/4---1968 monza 110/4
1971 amante gt 110/4
CORSA/RMC/PPCC

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Re: Found this today on 65 axle/differential
Posted by: steve c goodman ()
Date: November 07, 2018 04:00PM

Visit with Gerry Graeve in your club, he will
know where to suggest.

best wishes, Steve
Rear Engine Spec. Inc. Golden, Colo.

1962 spyder 3.0L turbo---1965 Crown V8
1967 monza 110/4---1968 monza 110/4
1971 amante gt 110/4
CORSA/RMC/PPCC

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Re: Found this today on 65 axle/differential
Posted by: moomba32 ()
Date: November 07, 2018 04:32PM

Is the crack the problem? Can just the snout be replaced?

Don Marlowe
66 Monza 2Dr 140/pg
64 Spyder convertible now, 110/pg
Eutawville SC

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Re: Found this today on 65 axle/differential
Posted by: MattNall ()
Date: November 07, 2018 04:34PM

Correct just the snout... Cheap part.... heavy labor..

The "Wolfe" here recently showed us how to do it in 7 minutes!





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: Found this today on 65 axle/differential
Posted by: jjohnsonjo ()
Date: November 07, 2018 05:43PM

moomba32 Wrote:
-------------------------------------------------------
> Is the crack the problem? Can just the snout be
> replaced?


Yes it can be replaced, but it get pressed in from the gear side. A real good reason not to drop the trans only. That's what usually gets them.

J.O.

65 Corsa Turbo Vert
79 Honda XL 500S
69 Honda CL 160 D
2010 BMW F 650 GS
2003 Bounder 36D
2013 KIA Optima SX turbo-AKA ZIPPY (wife,s car)
69 Newport Holiday Sailboat
Baja 150 dune buggy cart
Coleman HS 500 UTV
2016 KIA Sorento SXL Turbo

Bethlehem,Pa

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Re: Found this today on 65 axle/differential
Posted by: Frank DuVal ()
Date: November 07, 2018 08:40PM

Quote
J.O.
A real good reason not to drop the trans only. That's what usually gets them.

You mean "A real good reason not to drop the engine only". This is how most everyone of them gets broken, separating the differential from the belhousing and having the transmission input shaft hang in the pilot bushing. As the engine gets lowered on the jack, the input shaft applies force to the snout and crack....sad smiley I have brazed them up, welded them up, back when they were not available parts.

Now they are available from our vendors, most are made here in CVCC land. We had a club member making them at a local machine shop for our vendors.

Dropping the trans only leaves the differential attached to the engine belhousing, so there is very little force on the throw out bearing snout. But I can tell you dropping the transmission only can put a lot of force on the transmission output shaft if you do not allow enough clearance, chipping the transmission output shaft. BTDT over 35 years ago........angry smiley

Frank DuVal

Fredericksburg, VA

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Re: Found this today on 65 axle/differential
Posted by: moomba32 ()
Date: November 08, 2018 01:52AM

I thought they were replaceable but going from the inside sure sounds like a lot of work. I've learned that I can do most anything but jobs like that have way too many little things I can mess up because I don't know that I should not try it.

Don Marlowe
66 Monza 2Dr 140/pg
64 Spyder convertible now, 110/pg
Eutawville SC

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Re: Found this today on 65 axle/differential
Posted by: vairmech ()
Date: November 08, 2018 05:16AM

To replace that part the differential needs to be completely disassembled. At that point you may as well put new bearings in and re-set all the clearances, not for the faint of heart.

Many have said mark everything and put it back the same way, Wrong! I have done that very thing and then checked all of the checks. The strange thing is when I went back to the mark(s) on the side adjuster I could actually easily get another notch tighter without adding any pressure to the bearing preload. Preload? Don't forget about it! I know several people have done and have been lucky.

If you don't find anyone local for a used diff or repair that you feel comfortable with talk with Steve Goodman or myself. Shipping can be done pretty easily.

Ken Hand
Handy Car Care
248 613 8586

Vairmech@aol.com

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Re: Found this today on 65 axle/differential
Posted by: jjohnsonjo ()
Date: November 08, 2018 05:24AM

I meant trans plus differential, as in when doing a clutch, pilot, seal or TO. I never tried to separate just the trans while in the car.

J.O.

65 Corsa Turbo Vert
79 Honda XL 500S
69 Honda CL 160 D
2010 BMW F 650 GS
2003 Bounder 36D
2013 KIA Optima SX turbo-AKA ZIPPY (wife,s car)
69 Newport Holiday Sailboat
Baja 150 dune buggy cart
Coleman HS 500 UTV
2016 KIA Sorento SXL Turbo

Bethlehem,Pa

Image and video hosting by TinyPic

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Re: Found this today on 65 axle/differential
Posted by: Wagon Master ()
Date: November 08, 2018 05:28AM

MattNall Wrote:
-------------------------------------------------------
> The "Wolfe" here recently showed us how to do
> it in 7 minutes!


So no doubt you videoed this to share? Couldn't find it in my search. Link?

'29 Ford Model A Tudor
'61 700 Lakewood 110 4 speed
'69 Monza Convert. 140 Auto.
'70 Dodge Challenger R/T 440 4 speed

Been aircooled since 1973
Northwest Ohio

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Re: Found this today on 65 axle/differential
Posted by: larry202br ()
Date: November 08, 2018 06:54AM

Wagon Master Wrote:
-------------------------------------------------------
> MattNall Wrote:
> --------------------------------------------------
> -----
> > The "Wolfe" here recently showed us how to do
> > it in 7 minutes!
>
>
> So no doubt you videoed this to share? Couldn't
> find it in my search. Link?

Yes, Matt, no pics (video) didn't happen! winking smiley

1961 rampside with a 65 / 67 110 engine, car four speed.
1965 convertible
1966 Custom two door/four door

KC0SKX
Olathe, ks
HACOA

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Re: Found this today on 65 axle/differential
Posted by: MattNall ()
Date: November 08, 2018 08:08AM

Not me... but someone did... iirc





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: Found this today on 65 axle/differential
Posted by: MonzaDave ()
Date: November 08, 2018 08:43AM

vairmech Wrote:
-------------------------------------------------------
> Shipping can be done
> pretty easily.

What is the best way to ship a diff, Ken?

Dave Keillor
Rochester, MN

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Re: Found this today on 65 axle/differential
Posted by: Demon-Xanth ()
Date: November 08, 2018 10:01AM

I've done it, it takes time but if you're careful and mark the adjuster rings it can be done with basic tools. Mine was much the same.

'vairless. But not forever.
Cars need to drive to be alive. One that never leaves the garage may be perfect, but dead.

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Re: Found this today on 65 axle/differential
Posted by: Wagon Master ()
Date: November 08, 2018 10:52AM

Demon-Xanth Wrote:
-------------------------------------------------------
> I've done it, it takes time but if you're careful
> and mark the adjuster rings it can be done with
> basic tools.

I've done it too, but I followed the factory service manual. Now I have a customer that needs one swapped out and I've only allowed 30 minutes to do the deed. The method Matt spoke of should give me plenty of time.

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Re: Found this today on 65 axle/differential
Posted by: MattNall ()
Date: November 08, 2018 04:43PM

Guys, it was a DEMO.... everthing was preset... just dis-aassembly and assembly.

And he had problems... took him 17 minutes!


Gotcha!





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: Found this today on 65 axle/differential
Posted by: Frank DuVal ()
Date: November 08, 2018 06:32PM

Better allow 45 minutes then.....grinning smiley


Ken, this is probably because most every Corvair differential I have worked on could use a tooth or two of adjusting to reduce the backlash, as there is wear on these parts after decades of service.

IIRC it was Larry Claypool years ago in a Communique made a statement similar to: "If you get the clearances (in the differential) right, it will go 200 k miles. Get them somewhat close and it will still go over 100 K.

Frank DuVal

Fredericksburg, VA

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