C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Rear Plenum Drain (Convertible)

Thread Tools
 
Search this Thread
 
Old Mar 6, 2005 | 09:28 AM
  #1  
Motor City Vette's Avatar
Motor City Vette
Thread Starter
Safety Car
20 Year Member
Conversation Starter
Liked
Loved
 
Joined: Mar 2002
Posts: 4,366
Likes: 7
From: Las Vegas NV
Default Rear Plenum Drain (Convertible)

I need to replace the rear plenum drain on my 1970 convertible. But, I'm not having any luck finding the part number from any of the major vendors (e.g. Mid America, Ecklers, etc.). Anyone order one recently? Is it the same part for a coupe and convertible? How big of a PITA is it to change?

Thanks!!
Reply
Old Mar 6, 2005 | 10:35 AM
  #2  
markdtn's Avatar
markdtn
Le Mans Master
10 Year Member
 
Joined: Aug 2003
Posts: 7,720
Likes: 12
From: Chattanooga TN
Default

You can buy the covers from Dr Rebuild and others but to my knowledge you cannot get the drain tubes for a vert. I took mine out and cleaned them up. Sandblasted and painted the covers. It is a 2 person job putting them back. Had my then-4yo help me.
Reply
Old Mar 6, 2005 | 06:17 PM
  #3  
gearheadz's Avatar
gearheadz
Burning Brakes
20 Year Member
 
Joined: Jan 2001
Posts: 1,004
Likes: 16
From: Gainesville, Florida
Default

The coupe drain tubes are straight & exit to the wheelwell while the 'verts are a 90 degree and exit to the rear. So ... no they are not the same.

I haven't seen any replacement tubes listed anywhere for the vert. Are yours completely gone? You should be able to come up with a solution with some rubber hose/material & silicone to repair them unless they're totally gone.

The covers are also different but unlike the tubes, the vert ones are available from all of the vendors.

Mark
Reply
Old Mar 6, 2005 | 07:06 PM
  #4  
Motor City Vette's Avatar
Motor City Vette
Thread Starter
Safety Car
20 Year Member
Conversation Starter
Liked
Loved
 
Joined: Mar 2002
Posts: 4,366
Likes: 7
From: Las Vegas NV
Default

Originally Posted by gearheadz
The coupe drain tubes are straight & exit to the wheelwell while the 'verts are a 90 degree and exit to the rear. So ... no they are not the same.

I haven't seen any replacement tubes listed anywhere for the vert. Are yours completely gone? You should be able to come up with a solution with some rubber hose/material & silicone to repair them unless they're totally gone.

The covers are also different but unlike the tubes, the vert ones are available from all of the vendors.

Mark
Yeah, they're pretty trashed...I think I might have to manufacturer something out of some rubber and silicone.
Reply
Old Mar 6, 2005 | 07:15 PM
  #5  
gearheadz's Avatar
gearheadz
Burning Brakes
20 Year Member
 
Joined: Jan 2001
Posts: 1,004
Likes: 16
From: Gainesville, Florida
Default

I'll bet if look hard you can find a preformed heater hose or something similar with the same I.D. that you can use to replace either most or a good portion of the drain tube.

Another idea is to buy the coupe tubes and insert a 90 degree elbow or piece of copper tube where it needs the bend.

Mark
Reply

Get notified of new replies

To Rear Plenum Drain (Convertible)





All times are GMT -4. The time now is 03:12 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE