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65 Turbo Drain Tube Question
Posted by: Brucem ()
Date: August 13, 2020 09:33PM

I am hoping someone can direct me on sealing the lower metal drain tube to the head to make sure it does not leak.

I am restoring a 65 Turbo and I am installing the drain tube to the passenger side head and it is not that snug. It fits well but is easily pulled up and pushed down or turned.
I wondered if there is a sealant or process someone recommends for this part that will prevent future leakage.

When I pulled it apart there was a lot of residual oil in this area. The tube is not bent or cracked in any way. Its just not that snug.

Thanks all - Bruce

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Re: 65 Turbo Drain Tube Question
Posted by: jehowelljr ()
Date: August 13, 2020 09:43PM

My drain has two screw clamps, one at each end, the head and the brass(steel?) tubing. Snug and no leaks.

Jim Howell
Current:
‘65 Corsa Turbo Convertible
Previous:
'65 Corsa Turbo Coupe
'62 Monza Coupe
'64 Greenbrier (well that was my Dad's)



Sunny Southern California, great climate for a ragtop Corvair!

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Re: 65 Turbo Drain Tube Question
Posted by: Brucem ()
Date: August 13, 2020 10:25PM

Thanks Jim,
I have the tube and new clamps. My question revolves around the lower metal tube that seats into the passenger side head. My tube there is somewhat loose. I am wondering how others have sealed that junction. This sits below your two clamps and rubber hose.....

Thanks Bruce

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Re: 65 Turbo Drain Tube Question
Posted by: MattNall ()
Date: August 13, 2020 10:29PM

Expand the tube!

MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
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..............................110-PG.................................................Webered-Turbo

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Re: 65 Turbo Drain Tube Question
Posted by: American Mel ()
Date: August 13, 2020 11:46PM

That tube should be a Press Fit into the head.
You can try to expand it as Matt says.
Or maybe a small bead of JB-Weld around the edge of it?

-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
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, 80hp, PG
'62 Monza Wagon, 4spd.
'63 Spyder,
'65 Corsa
.
non-vair
'04 Dodge Cummins Quad Dually, approaching 400K
'03 Honda Del Sol
17'Terry
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Re: 65 Turbo Drain Tube Question
Posted by: roger65180 ()
Date: August 14, 2020 04:56AM

if it is that loose remove it clean the hole and the tube then JB weld the tube surface the is in the head , I have done this and it has worked for years.

Roger R
Madison Wi
62 ct pg turbo
65intercooled 180 4sp,autocrosser
62 Rampy

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Re: 65 Turbo Drain Tube Question
Posted by: Brucem ()
Date: August 14, 2020 08:34AM

Thanks fellas - I will do both. I know its a press fit so I will try to seat it better with minor expansion and seal it with the JB.

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Re: 65 Turbo Drain Tube Question
Posted by: Vairismo ()
Date: August 14, 2020 08:47AM

If using the JB Weld, why bother trying to expand the tube? You might be looking for trouble that way. Just an opinion. Good luck!

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Re: 65 Turbo Drain Tube Question
Posted by: Timothy Shortle ()
Date: August 14, 2020 09:50AM

Make sure you have the correct parts (is the cylinder head truly a 180 head? is the drain pipe truly an original Corvair turbo pipe?) We have seen homemade pipes and non turbo heads used for these cars. If yes or no, then apply some JB and hope for the best. The pipe just drains oil in volume, not pressure.

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Re: 65 Turbo Drain Tube Question
Posted by: corvairsince70 ()
Date: August 14, 2020 12:23PM

I use Permatex #2 to seal this tube. Never had a leak and is removable if ever needed. Expand the tube a little as previously stated then put a nice coat on the tube and press it in.

Dennis
Nashville area

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