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An odd 140 engine
Posted by: Kamaka ()
Date: July 08, 2018 07:16PM

Years ago I abought a 65 Corsa Convertible with a 140 engine, the car was an original turbo car with exhaust cutout under the bumper, oil pressure buzzer, and the build plate indicated it was originally a turbo car. The engine ran nice and sounded like a genuine 140 in that the cam had that lopey "140 idle". The body was bad, so I pulled the engine. Now I am about to reseal the engine and use it in another car BUT I noticed two interesting things about the motor.
1. The block does not have any numbers on it, and it does not look like they have been ground off.
2. The block has the boss/casting for the oil filler tube like a van or wagon engine BUT it has a metal plug pressed into the block from inside to seal it.

The engine is real clean inside, and definitely has a 140 cam and real 140 heads. I am wondering if this was a replacement block, or maybe even a factory long block.


Any thoughts?

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Re: An odd 140 engine
Posted by: American Mel ()
Date: July 08, 2018 07:18PM

Kamaka Wrote:
-------------------------------------------------------
I am wondering
> if this was a replacement block, or maybe even a
> factory long block.
>
>
> Any thoughts?


My thoughts. . . . .
I think you are correct!
$o.o2

.
-----------------------------------------------
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.
'66 Monza Coupe - 4spd, 140 Daily driver beater
'67 Monza Vert. - PG, 140 Daily driver beater

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Re: An odd 140 engine
Posted by: MattNall ()
Date: July 08, 2018 07:23PM

Dealer supplied replacement... I've got one.





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: An odd 140 engine
Posted by: TerribleTed ()
Date: July 08, 2018 07:53PM

MattNall Wrote:
-------------------------------------------------------
> Dealer supplied replacement... I've got one.

This for sure seen 2 before.

---------------------------------------------------------------------------------------------------------

Avid Corvair hobbiest since 1984.
I have personally performed ground up restoration on over 20 Corvairs.
I currently work full time at restoring and repairing Corvairs.
Located in the Atlanta Georgia area.
[www.facebook.com]

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Re: An odd 140 engine
Posted by: Kamaka ()
Date: July 08, 2018 08:03PM

Were they replacement empty blocks, short blocks, or long blocks?

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Re: An odd 140 engine
Posted by: Timothy Shortle ()
Date: July 08, 2018 08:09PM

Depends on what you wanted to buy "over the counter".
Also your car or any Corvair did not come with an oil pressure buzzer.

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Re: An odd 140 engine
Posted by: gregb ()
Date: July 08, 2018 08:51PM

I have the same thing in my Corsa, no numbers and the plug.

Gregb

Alberta Canada
61 Canadian Lakewood
62 Spyder Triple Black Convertible
65 Corsa Coupe

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Re: An odd 140 engine
Posted by: RobertC ()
Date: July 09, 2018 01:51AM

You could purchase just the block from GM parts - no stamped letters / numbers on the pad.

I purchased a new block (and a new crankshaft) in 1976 / 1977. Have no idea how much longer the parts were available.

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Re: An odd 140 engine
Posted by: Kamaka ()
Date: July 09, 2018 03:53AM

Yes, it is not an oil pressure buzzer but a temp buzzer. I've never heard it go off other than when the ignition is on but the engine is not running. All original turbo cars have it under the dash. it looks like a headlight relay but it is not. All turbo cars I have owned had it, now I have only owned corsas - I'm not sure about the spyders. Clarks lists in their NOS catalog CX4564.

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Re: An odd 140 engine
Posted by: texas yenko dude ()
Date: July 09, 2018 05:16AM

Sounds just like the last NOS block I had and used a few years ago.

Texas YENKO Dude
YS-070
YS-199
YS-320
Southeast of Disorder


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Re: An odd 140 engine
Posted by: Frank DuVal ()
Date: July 09, 2018 09:42AM

Quote
Kamaka
I've never heard it go off other than when the ignition is on but the engine is not running.

The two wires in the engine compartment are swapped, so actually you DO have an oil pressure buzzer!eye popping smiley

Swap the wires from the oil pressure switch and the temperature snap switch at the connector by the ignition coil.

My Spyder was like that when I first bought it. Noise drove me nuts until I found out it was wired wrong and I swapped wires to make it right. Much easier on the ears! Also, without correcting this, buzzer will NEVER sound with an overheat event.

Frank DuVal

Fredericksburg, VA

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Re: An odd 140 engine
Posted by: Kamaka ()
Date: July 09, 2018 07:32PM

Hi - WRONGO! Grab your Clarks NOS Catalog the part number for the buzzer is CX4564, They don't have it in stock BUT EVERY GENUINE TURBO CORSA I HAVE OWNED HAS HAD THIS!
It is right under the dash bolted to the firewall.

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Re: An odd 140 engine
Posted by: Frank DuVal ()
Date: July 09, 2018 07:56PM

Wrongo? Who are you addressing? Certainly not me.

If this is directed at my comment, please re-read it. I was pointing out that IF the buzzer is sounding with the ignition on, engine not running, it IS acting as a no oil pressure buzzer, and it will not sound when the temperature switch is closed from high temperature. This happens when the connector is mis-wired. I am not saying GM installed it as an oil pressure buzzer! Nor that they miswired it from the factory. I have seen this connector mistake on several Spyders and Corsas, it is not rare. Drop the engine, reattach the wires, they fit in easily incorrectly....

Or, the diode is shorted, but I have never seen that so far in 40 years....winking smiley

Frank DuVal

Fredericksburg, VA

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