So vacuum tanks leak, eh?
Thread Starter
Drifting
Joined: Sep 2001
Posts: 1,427
Likes: 1
From: Boxford Mass
So vacuum tanks leak, eh?
I've been running around with my handheld vacuum gun checking all lines on the vette. It turns out that the vacuum reserve tank won't even hold the slighest vacuum.
Also, an actuator relay on the headlight is bad too. Man, I am so sick of replacing parts after less than a year... ughh.
Could my engine be pulling too much vacuum?? Its pulling like 20 inches on the gauge. Is it causing these parts of marginal quality to poopie out?
Vacuum that doesn't suck sucks.
Also, an actuator relay on the headlight is bad too. Man, I am so sick of replacing parts after less than a year... ughh.
Could my engine be pulling too much vacuum?? Its pulling like 20 inches on the gauge. Is it causing these parts of marginal quality to poopie out?
Vacuum that doesn't suck sucks.
Pro
Joined: Oct 2003
Posts: 565
Likes: 0
From: I'm bleeding, making me the victor!
Originally Posted by Jack71
I've been running around with my handheld vacuum gun checking all lines on the vette. It turns out that the vacuum reserve tank won't even hold the slighest vacuum.
Also, an actuator relay on the headlight is bad too. Man, I am so sick of replacing parts after less than a year... ughh.
Could my engine be pulling too much vacuum?? Its pulling like 20 inches on the gauge. Is it causing these parts of marginal quality to poopie out?
Vacuum that doesn't suck sucks.
Also, an actuator relay on the headlight is bad too. Man, I am so sick of replacing parts after less than a year... ughh.
Could my engine be pulling too much vacuum?? Its pulling like 20 inches on the gauge. Is it causing these parts of marginal quality to poopie out?
Vacuum that doesn't suck sucks.
Thread Starter
Drifting
Joined: Sep 2001
Posts: 1,427
Likes: 1
From: Boxford Mass
Originally Posted by nitrocharger
The tank actually acts as part of the support structure. I guess after years of chassis flex, one of those welds is bound to break? Maybe thats why the later models went to the "coffee can" tank. 
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Racer
Joined: Sep 2001
Posts: 397
Likes: 1
From: CORTLANDT MANOR NY
Are you sure you are testing the tank correctly?
Make sure you are right before you start pulling everything apart. If your tank will not hold any vaccum then none of your systems should work properly. Wiper door, headlights, heating and a/c system etc. There are a lot of vacum operated systems on these cars and without a marginally functioning vacum tank I don't think any of them would operate as designed. Are you experiencing these type problems?
Make sure you are right before you start pulling everything apart. If your tank will not hold any vaccum then none of your systems should work properly. Wiper door, headlights, heating and a/c system etc. There are a lot of vacum operated systems on these cars and without a marginally functioning vacum tank I don't think any of them would operate as designed. Are you experiencing these type problems?
Melting Slicks
Joined: Feb 2004
Posts: 2,435
Likes: 0
From: largo florida
If the tank is bad, I would just bypass it. With the high vacuum you have, it isnt necessary to use. It will save all the aggrevation of pulling it and repairing it. The only downside is the car must be running in order to close the headlights.
Thread Starter
Drifting
Joined: Sep 2001
Posts: 1,427
Likes: 1
From: Boxford Mass
Originally Posted by BUGGSY1970
Are you sure you are testing the tank correctly?
Make sure you are right before you start pulling everything apart. If your tank will not hold any vaccum then none of your systems should work properly. Wiper door, headlights, heating and a/c system etc. There are a lot of vacum operated systems on these cars and without a marginally functioning vacum tank I don't think any of them would operate as designed. Are you experiencing these type problems?
Make sure you are right before you start pulling everything apart. If your tank will not hold any vaccum then none of your systems should work properly. Wiper door, headlights, heating and a/c system etc. There are a lot of vacum operated systems on these cars and without a marginally functioning vacum tank I don't think any of them would operate as designed. Are you experiencing these type problems?
Hmmm, I'm taking a welding class now. Maybe I'll bring it in and drop a big, nasty weld around the seams. On second thought, perhaps I'll let the instructor handle that one for me...
Melting Slicks
Joined: Aug 1999
Posts: 3,123
Likes: 13
From: Hollywood, Florida
It is a PITA to remove it. I just had mine out, only to find that it held vacuum just fine. The reason I remove it was that I had the brake booster off to clean and repaint it so it was 1 of those while I'm at it jobs.
I even filled my utility sink with water at pressurized the tan and held it under water...no bubbles.
Take off your left side egg crate grill, disconnect and lable the evap. cannister hoses and get them up and out of the way, spray WD-40 on the reserv. mounting bolts sticking thru the left fender well, remove the PB booster if you have PB (or just the MC), and wrangle it out!
Good luck!
I even filled my utility sink with water at pressurized the tan and held it under water...no bubbles.
Take off your left side egg crate grill, disconnect and lable the evap. cannister hoses and get them up and out of the way, spray WD-40 on the reserv. mounting bolts sticking thru the left fender well, remove the PB booster if you have PB (or just the MC), and wrangle it out!
Good luck!
Melting Slicks
Joined: Aug 1999
Posts: 3,123
Likes: 13
From: Hollywood, Florida
It is a PITA to remove it. I just had mine outof my '71, only to find that it held vacuum just fine. The reason I removed it was that I had the brake booster off to clean and repaint it so it was 1 of those while I'm at it jobs.
I even filled my utility sink with water and pressurized the tank to 25 PSI and held it under water...no bubbles.
Take off your left side egg crate grill, disconnect and lable the evap. cannister hoses and get them up and out of the way, spray WD-40 on the reserv. mounting bolts sticking thru the left fender well, remove the PB booster if you have PB (or just the MC), and wrangle it out!
Good luck!
PS....getting the booster out (if you have one) is an adventure in itself!!!
I even filled my utility sink with water and pressurized the tank to 25 PSI and held it under water...no bubbles.
Take off your left side egg crate grill, disconnect and lable the evap. cannister hoses and get them up and out of the way, spray WD-40 on the reserv. mounting bolts sticking thru the left fender well, remove the PB booster if you have PB (or just the MC), and wrangle it out!
Good luck!
PS....getting the booster out (if you have one) is an adventure in itself!!!
Last edited by shoptek; Sep 19, 2004 at 10:42 PM.
