What does this steel line do and replacement?
Thread Starter
Instructor
Joined: Dec 2006
Posts: 207
Likes: 0
From: Keller TX
What does this steel line do and replacement?
Help! Can anyone tell me....
1. What this line does?
2. Where I can get a replacement?
3. I assume I will need this line with a replacement manifold?
1977 coupe...350.
I pulled my engine by myself and didn't realize I caught this line on the chain. This line is at the rear of the manifold behind the carb.
1. What this line does?
2. Where I can get a replacement?
3. I assume I will need this line with a replacement manifold?
1977 coupe...350.
I pulled my engine by myself and didn't realize I caught this line on the chain. This line is at the rear of the manifold behind the carb.
Le Mans Master
Joined: Apr 2004
Posts: 7,106
Likes: 38
From: Newark DE
yep, looks like the auto trans vacuum line to me.
You only need it if you plan on driving the car and want the tranny to actually shift.....
Sorry, I have a headache so don't feel up to searching thru catalogs at the moment but chances are Dr. Rebuild probably has the part.
if you installing a new intake manifold and the manifold doesn't have a hole for the vacuum fitting already there you can drill one, tap it. and install a fitting. Yopu can get the fitting at most of the corvette parts vendors or clean up the current fitting and reuse it on the new intake.
You only need it if you plan on driving the car and want the tranny to actually shift.....
Sorry, I have a headache so don't feel up to searching thru catalogs at the moment but chances are Dr. Rebuild probably has the part.
if you installing a new intake manifold and the manifold doesn't have a hole for the vacuum fitting already there you can drill one, tap it. and install a fitting. Yopu can get the fitting at most of the corvette parts vendors or clean up the current fitting and reuse it on the new intake.
Le Mans Master
Joined: Mar 2001
Posts: 6,640
Likes: 287
From: Ann Arbor Michigan
I believe it's item 'G' in the attached catalog page from the Doc.
http://docrebuild.com/dr-r-web/AUTO.pdf
http://docrebuild.com/dr-r-web/AUTO.pdf
Melting Slicks
Joined: Feb 2006
Posts: 3,428
Likes: 5
From: Japan
Since you've expressed interest in installing a 4-speed later anyway, you can just bend up another one of those lines from tubing you can buy at NAPA. If the bends are too sharp to make without a bender, you can get one of those at Home Depot for about $10 that will tightly bend from 1/4" to 3/8" tubing. Don't know what Dr. Rebuild gets for 'em (it'll definitely be NCRS-correct though!) but I'm pretty sure that by the time you pay the freight it'll be well over twice the NAPA/Home Depot bill. Good luck.
Thread Starter
Instructor
Joined: Dec 2006
Posts: 207
Likes: 0
From: Keller TX
Ah...good replies above. I went to Dr Rebuild and couldn't get the catalog to load. The page provided above helps...looks very close but my line enters from the top...not the side?
The tube bending might be a good solution...thanks.
BTW...I think I'm gonna have to wait a while on the manual trans swap...funds on the motor rebuild will force a wait for a while...hopefully fall.
Thanks for the help.
Doug
The tube bending might be a good solution...thanks.
BTW...I think I'm gonna have to wait a while on the manual trans swap...funds on the motor rebuild will force a wait for a while...hopefully fall.
Thanks for the help.
Doug
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Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
The line is simply to get vacuum from the manifold to the vacuum modulator on the transmission. It does NOT have to be steel; you could make it out of aluminum tubing, which would be a lot easier to bend (but not up to NCRS standards).