82 TB balaning?
Thread Starter
Melting Slicks
Joined: Jun 2011
Posts: 2,096
Likes: 15
82 TB balaning?
I'm in the middle of "trying" to balance my throttle bodies on my 82 and am failing miserably.....I am fowling the instructions but nothing is doing what it's suppose to. Instead of a manometer I'm using a Viot inches of water gauge that measures up to 15" When I hook it up to the center port on the tb it shows nothing. I have the IACs unplugged and have the holes plugged with the IAC tool. The weird thing though is that it's idling great in both park and in drive. What's up with that?? So anyway that's where I'm stuck and can't proceed any further cause honestly never done one of these.
Race Director
Joined: Apr 2009
Posts: 19,294
Likes: 2,753
From: Charlotte NC
I will write this....when I am using my manometer.....I can very...and I mean very lightly suck on the hose and see that my gauge moves the dyed water in the tube. IF you can not get your gauge that you are using to do that...then you need to get the correct gauge.
I looked at the Viot gauge...and it is obviously different than my manometer. A manometer is what the Service manual states that is needed.
DUB
I looked at the Viot gauge...and it is obviously different than my manometer. A manometer is what the Service manual states that is needed.
DUB
Thread Starter
Melting Slicks
Joined: Jun 2011
Posts: 2,096
Likes: 15
I will write this....when I am using my manometer.....I can very...and I mean very lightly suck on the hose and see that my gauge moves the dyed water in the tube. IF you can not get your gauge that you are using to do that...then you need to get the correct gauge.
I looked at the Viot gauge...and it is obviously different than my manometer. A manometer is what the Service manual states that is needed.
DUB
I looked at the Viot gauge...and it is obviously different than my manometer. A manometer is what the Service manual states that is needed.
DUB
Race Director
Joined: Apr 2009
Posts: 19,294
Likes: 2,753
From: Charlotte NC
AS Drawmain stated...this is a vacuum port as you know by know.
One thing that you want to verify...is that your fuel pressure is as high as possible. So NO 9psi readings. DO NOT think that you are OK here. It is worth the time to verify this. Because if you DO NOT...you will eventually WISH you had.
Also...are you planning on putting the larger throttle bodies on??? You may need larger injectors and also a new spring that can allow a bit more fuel pressure. I also just looked a the new manometer that the throttle body company sells on their site...which may be the 'ticket' due to all of the 2" borer throttle bodies I had put on...could NOT be balanced due to the ported vacuum port had been plugged.
DUB
One thing that you want to verify...is that your fuel pressure is as high as possible. So NO 9psi readings. DO NOT think that you are OK here. It is worth the time to verify this. Because if you DO NOT...you will eventually WISH you had.
Also...are you planning on putting the larger throttle bodies on??? You may need larger injectors and also a new spring that can allow a bit more fuel pressure. I also just looked a the new manometer that the throttle body company sells on their site...which may be the 'ticket' due to all of the 2" borer throttle bodies I had put on...could NOT be balanced due to the ported vacuum port had been plugged.
DUB
Le Mans Master
Joined: May 1999
Posts: 6,692
Likes: 29
From: Texas
See my reply in the General section to the same question.
Buy one of these and use several sized hoses to step down to the tbi inlet hose.
http://www.grainger.com/product/Pres...S?opr=APPD&pbi
Buy one of these and use several sized hoses to step down to the tbi inlet hose.
http://www.grainger.com/product/Pres...S?opr=APPD&pbi
Last edited by Wrecked82; Sep 15, 2014 at 06:29 PM.
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Thread Starter
Melting Slicks
Joined: Jun 2011
Posts: 2,096
Likes: 15
AS Drawmain stated...this is a vacuum port as you know by know.
One thing that you want to verify...is that your fuel pressure is as high as possible. So NO 9psi readings. DO NOT think that you are OK here. It is worth the time to verify this. Because if you DO NOT...you will eventually WISH you had.
Also...are you planning on putting the larger throttle bodies on??? You may need larger injectors and also a new spring that can allow a bit more fuel pressure. I also just looked a the new manometer that the throttle body company sells on their site...which may be the 'ticket' due to all of the 2" borer throttle bodies I had put on...could NOT be balanced due to the ported vacuum port had been plugged.
DUB
One thing that you want to verify...is that your fuel pressure is as high as possible. So NO 9psi readings. DO NOT think that you are OK here. It is worth the time to verify this. Because if you DO NOT...you will eventually WISH you had.
Also...are you planning on putting the larger throttle bodies on??? You may need larger injectors and also a new spring that can allow a bit more fuel pressure. I also just looked a the new manometer that the throttle body company sells on their site...which may be the 'ticket' due to all of the 2" borer throttle bodies I had put on...could NOT be balanced due to the ported vacuum port had been plugged.
DUB