High idle - no vacuum leak

[cbaclawski]

Originally Posted by secondchance

Unfortunately this is a mis-match. TB on J C Whitney is for non-LT5 vette - most likely LT1.
I looked up BBK website and they do not offer TB for LT5.
http://www.bbkperformance.com/produc...?car_motor_key[]=1503&car_motor_key[]=1514&category_key=2&left_select_reset=1

Thanks so much for doing that.

Is there a place to buy one that will fit?

[A1990]

Chances are with your 368 the DAG was long gone before you cleaned the throttle body. As it was probably enlarged to 63mm.

The other guys are correct, you are not going to find a LT5 throttle body unless its at Jerry's or on eBay, etc.

The good news is Marc will rebuild your throttle body, if indeed that is the source of the vacuum leak, and have it back to you within a couple days. I had Marc rebuild mine. I pulled it off and sent it to Marc. He had it the next day and rebuilt it, then put in back in the mail and I had it the next day. I was down for about 3 or 4 days total.

Good luck.

[lfalzarano]

Ditto for Marc.


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[cbaclawski]

Originally Posted by A1990

Chances are with your 368 the DAG was long gone before you cleaned the throttle body. As it was probably enlarged to 63mm.

The other guys are correct, you are not going to find a LT5 throttle body unless its at Jerry's or on eBay, etc.

The good news is Marc will rebuild your throttle body, if indeed that is the source of the vacuum leak, and have it back to you within a couple days. I had Marc rebuild mine. I pulled it off and sent it to Marc. He had it the next day and rebuilt it, then put in back in the mail and I had it the next day. I was down for about 3 or 4 days total.

Good luck.

That makes me feel better, thanks! I'm going to pull the plenum again and double check for leaks, get a better look at the throttle body, etc...

I've done it before, but i'm a little confused regarding draining coolant.. The other times I've pulled it I didn't do that. How/how much should I drain?

anyone have a link for the correct procedure?

Thank you guys so much for helping me!

[ssrszz4]

How much did he charge for rebuild?

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[Dynomite]

Originally Posted by cbaclawski

That makes me feel better, thanks! I'm going to pull the plenum again and double check for leaks, get a better look at the throttle body, etc...

I've done it before, but i'm a little confused regarding draining coolant.. The other times I've pulled it I didn't do that. How/how much should I drain?

anyone have a link for the correct procedure?

Thank you guys so much for helping me!

Oh......just drain about a gallon should be plenty....if you remove radiator...drain radiator until it is empty. Then replace what you drained and fire it up

Have two new Plenum Gaskets on hand.

The Injector Housing Coolant Manifolds should get warm within a minute or two.

I would say Block TB Coolant at Injector Housing but I have found very few see the real advantages of that on this forum except for myself

Same goes for Battery Disconnect and making your own oil Cooler Lines

[cbaclawski]

Originally Posted by Dynomite

Oh......just drain about a gallon should be plenty....if you remove radiator...drain radiator until it is empty. Then replace what you drained and fire it up

Have two new Plenum Gaskets on hand.

The Injector Housing Coolant Manifolds should get warm within a minute or two.

I would say Block TB Coolant at Injector Housing but I have found very few see the real advantages of that on this forum except for myself

Same goes for Battery Disconnect and making your own oil Cooler Lines

Thanks! Hopefully the gaskets good, I just had it apart 3 weeks ago!!