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Re: New Owner Question
Posted by: jjohnsonjo ()
Date: October 25, 2019 12:41PM

The seats are hardened and pressed in place. The guides are slugs that are drilled after the seats are pressed in. The turbo exhaust guides are bronze, not the good bronze, they wear fast. The turbo exhaust valves are special and tough. New guides most often won't line up with the seats. Bronze K-liners may be your quickest fix if needed. Your intake guides are cast iron and should be OK with that many miles. The crank is nitrided and tough, should be fine.

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: New Owner Question
Posted by: jjohnsonjo ()
Date: October 25, 2019 01:54PM

jjohnsonjo Wrote:
-------------------------- The guides are slugs that are drilled after the seats are pressed in.


That didn't come out quite right, The slugs are drilled and the seat holes are cut then the seats are pressed in. Sounded dumb to me at first, but it make it close to the way they did it with cast iron heads with ganged drill presses.

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: New Owner Question
Posted by: Lane66m ()
Date: October 25, 2019 04:09PM

Joe:

Corsa Tech Guide is chock full of info and very useful. Also Bob Helt's Corvair Basicis is good.

Where in South GA are you? I am 35 miles west of Savannah. I have 3 Vairs and a baby sister 68 Camaro. My best friend Rick has 2 Vairs. Another friend has a group red 64 Monza vert.

Al Lane
Ellabell, GA 31308

1966 Monza Coupe, 110 hp, 4 Spd
1966 Monza More Door 110 hp, PG
1968 Camaro SS Coupe 350 CI 295+ hp PG
1964 Greenbrier Deluxe, 6 dr, 80 hp car engine, PG
1947 Farmall A tractor 15 hp


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Re: New Owner Question
Posted by: mtmouse ()
Date: October 25, 2019 04:22PM

Just based on other air cooled engines (mainly motorcycles) I intend to check the exhaust valve guides by airing up a cylinder, remove the valve springs and seal. If I see signs of wear on the valve guides I will just go ahead and pull the heads and send them out for rework. If the guides look good then they get put back together with new seals.Like I said I don't plan to race it or take it to shows. Just want a decent looking car to drive around once in awhile.
From my limited knowledge of the corvair engine I can replace valve stem seals, pushrod tube seals and valve cover gaskets without ever breaking factory torque on the cylinder head.If all cylinders do well on the compression test I will be hesitant to break open the factory work.

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Re: New Owner Question
Posted by: mtmouse ()
Date: October 25, 2019 04:43PM

Lane66m Wrote:
-------------------------------------------------------
> Joe:
>
> Corsa Tech Guide is chock full of info and very useful. Also Bob Helt's Corvair Basicis is good.
>
> Where in South GA are you? I am 35 miles west of Savannah. I have 3 Vairs and a baby sister 68 Camaro. My best friend Rick has 2 Vairs. Another friend has a group red 64 Monza vert.
Hi, I live on Lake Seminole. This is as far south and west as you can go and stay in Ga. It's about three miles as the crow flies to Florida to the west and to the south.
This Corsa has been within this 100 mile radius it's whole life. I am purchasing it from the second owner.

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Re: New Owner Question
Date: October 25, 2019 04:52PM

mtmouse Wrote:
-------------------------------------------------------
>....
> From my limited knowledge of the corvair engine I can replace valve stem seals, pushrod tube seals and valve cover gaskets without ever breaking factory torque on the cylinder head.If all cylinders do well on the compression test I will be hesitant to break open the factory work.

Replacing the pushrod tube "O"-rings requires removing the rocker arms and the stud/nut which is also the lower clamping nut for the head gasket seal.

I replace the O-rings on each cylinder while the other two cylinders are at proper torque and have had good success doing so.


Dan Davis ~ Pierce County, WA ~ CORSA Western Director + Corvairs NW + North Cascades Corvairs + Corvanatics
1966 Corsa Turbo coupe ~ ~ 1966 Corsa 140 Coupe ~ ~ 1965 Monza 140/4 Convertible Sierra Tan/Fawn ~ 1964 Monza Spyder Convertible ~ 1960 Monza Ermine White/Red PG ++ ~ 1965 Monza 140/4 CoupeEvening Orchid w/ ivory/black interior ~ 1962 Monza Wagon 102/4 ~ 1963 Rampside/Scamper ~ 1963 Red/Greenbrier ~ 1969 Ultra Van #468

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Re: New Owner Question
Posted by: jjohnsonjo ()
Date: October 25, 2019 04:54PM

You will need to remove the lower head nuts/ rocker studs for "O" rings, but only do one cylinder at a time, no problem with re-torquing.

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: New Owner Question
Posted by: mtmouse ()
Date: October 25, 2019 05:13PM

1966-Corsa-GT-180 Wrote:
-------------------------------------------------------
> mtmouse Wrote:
> -------------------------------------------------------
> >....
> > From my limited knowledge of the corvair engine I can replace valve stem seals, pushrod tube seals and valve cover gaskets without ever breaking factory torque on the cylinder head.If all cylinders do well on the compression test I will be hesitant to break open the factory work.
>
> Replacing the pushrod tube "O"-rings requires removing the rocker arms and the stud/nut which is also the lower clamping nut for the head gasket seal.
>
> I replace the O-rings on each cylinder while the other two cylinders are at proper torque and have had good success doing so.

So do I break torque on all four studs on the cylinder then retorque all four as I do one cylinder at a time. Doesn't sound right to just loosen the two bottom studs.

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Re: New Owner Question
Posted by: Lane66m ()
Date: October 25, 2019 05:17PM

Procedure in FAQs TO the job. I have the MsWord version, if you want it. Send me a PM with an email address.

[corvaircenter.com]

Al Lane
Ellabell, GA 31308

1966 Monza Coupe, 110 hp, 4 Spd
1966 Monza More Door 110 hp, PG
1968 Camaro SS Coupe 350 CI 295+ hp PG
1964 Greenbrier Deluxe, 6 dr, 80 hp car engine, PG
1947 Farmall A tractor 15 hp


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Re: New Owner Question
Posted by: American Mel ()
Date: October 25, 2019 05:18PM

Corvairs are NOT like other engines.
There are some things you are going to have to just forget, about what you "Know" about engines.
Yes, do ONLY one at a time, not two.

-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
WA. state, 1 mile south of the Canadian border,
I am not at the end of the world, but you can see it from here.
Have; '66 Monza Coupe - 140, 4-spd. Daily driver beater
'67 Monza Vert. - 140, 4-spd. Daily driver beater
'67 A/C Moredoor Monza
Have had; '61 Monza coupe, '62 Monza Wagon, '63 Spyder, '65 Corsa
.
non-vair
'04 Dodge Cummins Quad Dualy, approaching 400K
17'Terry



Edited 1 time(s). Last edit at 10/25/2019 05:20PM by American Mel.

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Re: New Owner Question
Posted by: jjohnsonjo ()
Date: October 25, 2019 05:19PM

Just do the bottom, one cylinder at a time, that's how most of us do it, you'll be fine.

Also, another thought, check the boost retard with a hand vacuum pump, should hold a vacuum, good chance its a its bad from age.

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: New Owner Question
Posted by: MattNall ()
Date: October 25, 2019 05:20PM

A-Mel..... he's already restored a Motorcycle.... he knows "aircooled.."

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: New Owner Question
Posted by: American Mel ()
Date: October 25, 2019 05:23PM

So Matt, if you once worked on a VW, you are a qualified Corvair expert ? ? ? veye rolling smiley
There are differences even amongst "air-cooled" engines.

-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
WA. state, 1 mile south of the Canadian border,
I am not at the end of the world, but you can see it from here.
Have; '66 Monza Coupe - 140, 4-spd. Daily driver beater
'67 Monza Vert. - 140, 4-spd. Daily driver beater
'67 A/C Moredoor Monza
Have had; '61 Monza coupe, '62 Monza Wagon, '63 Spyder, '65 Corsa
.
non-vair
'04 Dodge Cummins Quad Dualy, approaching 400K
17'Terry

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Re: New Owner Question
Posted by: Lane66m ()
Date: October 25, 2019 05:28PM

I worked on the R1820 aircooled engine. Totally air cooled and related to Corvairs, as the F4U Corsairs used the R2800 aircooled engines. So I must have been an Corvair expert back in 73 when the Navy trained me on the R1820 engines.

Al Lane
Ellabell, GA 31308

1966 Monza Coupe, 110 hp, 4 Spd
1966 Monza More Door 110 hp, PG
1968 Camaro SS Coupe 350 CI 295+ hp PG
1964 Greenbrier Deluxe, 6 dr, 80 hp car engine, PG
1947 Farmall A tractor 15 hp


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Re: New Owner Question
Posted by: MattNall ()
Date: October 25, 2019 06:07PM

American Mel Wrote:
-------------------------------------------------------
> So Matt, if you once worked on a VW, you are a qualified Corvair expert ? ? ? veye rolling smiley
> There are differences even amongst "air-cooled" engines.
===============================================================


Never said "expert"

But experience and a "mechanical Aptitude" goes along way!

As for me... Started on Briggs & Stratton...

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: New Owner Question
Posted by: jjohnsonjo ()
Date: October 25, 2019 06:09PM

MattNall Wrote:
-------------------------------------------------------

>
> As for me... Started on Briggs & Stratton...


Me three, not mention HONDA

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: New Owner Question
Posted by: mtmouse ()
Date: October 25, 2019 06:24PM

Hey guys, never said I was an expert on corvair engines. If I was chances are I would not be asking questions and procedures.Just said I have experience with alloy air cooled engines. Just means I know how to work on stuff using more than a hammer and adjustable wrench.Just means I have experience with corrosion and can normally complete tasks without breaking castings and fasteners.Just means I know the vocabulary and understand what is being discussed.
I got the basics for spinning wrenches just here for the details.
So far I have garnered a large amount of information in just 24 hours. Thank You guys.I expect much of my previous knowledge to be very helpful and a lot of it to be useless on a corvair engine.Here to talk and listen.

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Re: New Owner Question
Posted by: Frank DuVal ()
Date: October 25, 2019 07:08PM

Quote
mtmouse
valve guides by airing up a cylinder, remove the valve springs and seal

Not necessary, or even advised. Notice the Corvair engine is horizontal, therefore the valves are sitting horizontal. Gravity is not working for or against you.

I have taken many a valve spring off a Corvair and never used air to hold a valve closed. Just sits there. If it happens to slide partially into the guide, just have a 1/4" or so magnet around. No, I have not needed that either.

Yep, just take off the two rocker stud on one cylinder at a time. Do not touch the upper head studs.

Use a tool to remove the push rod tubes. DO not use Channellocks. They leave marks and dent the tubes. Search on this site for a simple tool to make using rubber stopper. I've also heard of using a hose clamp to pry against.
Or buy the Clark's tool.

BTW, no need to remove valve stem seal on the exhaust valves, as there ARE NONE! DO NOT install vale stem seals on exhaust valves, they need the lubrication, probably since they are horizontal and not swimming in oil, like a valve on top of piston engine. It has not gone well for people who put exhaust vale stem seals on Corvars! Extreme guide wear.eye popping smiley

Frank DuVal

Fredericksburg, VA

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Re: New Owner Question
Posted by: Lane66m ()
Date: October 25, 2019 07:13PM

Joe, we are j7st hav8ng a bit of fun with Matt.

Al Lane
Ellabell, GA 31308

1966 Monza Coupe, 110 hp, 4 Spd
1966 Monza More Door 110 hp, PG
1968 Camaro SS Coupe 350 CI 295+ hp PG
1964 Greenbrier Deluxe, 6 dr, 80 hp car engine, PG
1947 Farmall A tractor 15 hp


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Re: New Owner Question
Posted by: jjohnsonjo ()
Date: October 25, 2019 07:13PM

You may as well add viton oil cooler seals to your preliminary list. Chances of them not leaking is near zero at that age. Plus its one one the easiest repairs.


Have fun, we do.

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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