Crossfire guys - Manometer question
Thread Starter
Melting Slicks
Joined: Apr 2002
Posts: 2,546
Likes: 0
From: Orlando FL
Crossfire guys - Manometer question
Hey guys,
I was curious what tool everyone is using to balance their TB's on their 82-84 vettes. I currently am using the normal yard stick and plastic tube model. Purchased all parts from home depot for a few dollars. Took about 3.5 minutes to build. Works well, but im still not convinced its a perfect tune.
I have been pricing Digital manometers on ebay and was wondering what everyone else uses. Anyone using a digital unit? Likes dislikes? Any advice for me as I plan to purchase one in the near future.
Discuss!
I was curious what tool everyone is using to balance their TB's on their 82-84 vettes. I currently am using the normal yard stick and plastic tube model. Purchased all parts from home depot for a few dollars. Took about 3.5 minutes to build. Works well, but im still not convinced its a perfect tune.
I have been pricing Digital manometers on ebay and was wondering what everyone else uses. Anyone using a digital unit? Likes dislikes? Any advice for me as I plan to purchase one in the near future.
Discuss!
Advanced
Joined: Oct 2006
Posts: 68
Likes: 0
From: Smog Central CA
Originally Posted by quiksilver458
Hey guys,
I was curious what tool everyone is using to balance their TB's on their 82-84 vettes. I currently am using the normal yard stick and plastic tube model. Purchased all parts from home depot for a few dollars. Took about 3.5 minutes to build. Works well, but im still not convinced its a perfect tune.
I have been pricing Digital manometers on ebay and was wondering what everyone else uses. Anyone using a digital unit? Likes dislikes? Any advice for me as I plan to purchase one in the near future.
Discuss!
I was curious what tool everyone is using to balance their TB's on their 82-84 vettes. I currently am using the normal yard stick and plastic tube model. Purchased all parts from home depot for a few dollars. Took about 3.5 minutes to build. Works well, but im still not convinced its a perfect tune.
I have been pricing Digital manometers on ebay and was wondering what everyone else uses. Anyone using a digital unit? Likes dislikes? Any advice for me as I plan to purchase one in the near future.
Discuss!
I've had my TB's bored to 2" and just used a feeler gauge to get each throttle blade closed as close as possible. I used a .0015"-.0020" gauge to just barely creap by the throttle blades. A piece of paper works well too. They are about the same thickness aswell.
If your TB's are adjusted the same and there is still driveablity issues then try somewhere else. I've had the TB's blades pretty far off before from each other and it still ran the same to me.
Thread Starter
Melting Slicks
Joined: Apr 2002
Posts: 2,546
Likes: 0
From: Orlando FL
The motor was rebuilt on the car about a year ago now. I have slowly been making changes to the fuel system ect. I have read that everytime the TB's are removed from intake, they should be rebalanced to assure they are in sync. GM balanced these cars using a manometer. Your technique is one I have heard of, and even seen mechanics use. I still would like to know about the digital meters though. 
Burning Brakes
Joined: Sep 2006
Posts: 1,202
Likes: 3
From: MD
Balancing is pretty important for a nice smooth idle. I picked up an analog manometer gauge on eBay with a 3/8 npt fitting and I plumbed it to a vacuum line with hardware store parts. It works great. Just search around for a 0-15 or 0-30 inches of water vacuum gauge.
Drifting
Joined: Feb 2004
Posts: 1,277
Likes: 1
From: Santa Maria CA
Feeler gauge here too. Never had any problems with em' being out ever with my 2"TB's or stock ones. Its ok to use a gauge. The 6026 ecm in our 84's is so stoneage it won't make a huge difference unless they are way off
Vacuum leaks are the main cause of issues with our cars.
My advice is.....if the TB's are all original try to rebuild yourself with a GM parts rebuild kit. check your thottle shaft for play. The IAC port can get extreemly dirty and carboned up along with the IAC's springy thingy gets nasty too.
Just my $.02
Vacuum leaks are the main cause of issues with our cars. My advice is.....if the TB's are all original try to rebuild yourself with a GM parts rebuild kit. check your thottle shaft for play. The IAC port can get extreemly dirty and carboned up along with the IAC's springy thingy gets nasty too.
Just my $.02
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Originally Posted by quiksilver458
I was curious what tool everyone is using to balance their TB's on their 82-84 vettes. I currently am using the normal yard stick and plastic tube model. Purchased all parts from home depot for a few dollars. Took about 3.5 minutes to build. Works well, but im still not convinced its a perfect tune.
RACE ON!!!
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Intermediate
Joined: Sep 2006
Posts: 29
Likes: 0
From: Sayre PA
Originally Posted by quiksilver458
Hey guys,
I was curious what tool everyone is using to balance their TB's on their 82-84 vettes. I currently am using the normal yard stick and plastic tube model. Purchased all parts from home depot for a few dollars. Took about 3.5 minutes to build. Works well, but im still not convinced its a perfect tune.
I have been pricing Digital manometers on ebay and was wondering what everyone else uses. Anyone using a digital unit? Likes dislikes? Any advice for me as I plan to purchase one in the near future.
Discuss!
I was curious what tool everyone is using to balance their TB's on their 82-84 vettes. I currently am using the normal yard stick and plastic tube model. Purchased all parts from home depot for a few dollars. Took about 3.5 minutes to build. Works well, but im still not convinced its a perfect tune.
I have been pricing Digital manometers on ebay and was wondering what everyone else uses. Anyone using a digital unit? Likes dislikes? Any advice for me as I plan to purchase one in the near future.
Discuss!
Scot
Last edited by ScotSea; Oct 17, 2006 at 08:44 PM.
