Just as the question reads... Im not sure if the throttle body circular plates have to be completly closed or slightly opened... I took my manifolds out to sand them a lil and noticed that in the throttle body between the round metal plates and the holes there was a tiny separation. Should I leave it like that or close them shot? is it so that there is some air at idle?

 

mine is like that too...... actually, every one ive seen is like that.... so, id assume its that way on purpose!

 

thank you vipers

 

Yes, they should be slightly open. There is an actual measurement and adjustment for that gap in the FSM.. Which, if you ask HAILERS he will tell you, its available FREE of charge.

 

They'll be open a touch UNTIL the engine warms up, whereupon they'll .....close all the way.

Just lift the fast idle cam off the roll pin and you'll see that they close all the way now. That's what the fast idle cam/thermowax is all about.

It's in the fsm, Fuel Section, for freeeeeeeeeee. Free download available. Links to the FREE download are on this site. Won't cost you much. NO charge at all.

EDIT: I may be wrong about that. I thought only the primary throttle plate was open a touch when the engine was cold. I don't think the secondary should be cracked open. I guess I need to go read the FSM, Fuel Section.

 

I think that one of the plates is always open.. Maybe I need to read the FREE FSM too..

 

are u guys being sarcastic? LOL! the fsm is always been free online well at least for the past 3 years i been in this forum. their measurements are ridiculous... .03-.05in thats sick... how im i suppose to measure that... screw it i just open them a lil bit and once i get the crap back on the car ill adjust it as i see fit... or a smy idle sees fit instead LOL

 

Yes, its sarcasm..

And I would probably use a feeler gauge to measure it..

 

That .03-.05 is a small measurement, but it makes a significant difference.

 

On throttle plates, I get some electrical wire and strip the insulation off. Measure a strand and use it to measure the clearance. Of course you have to start off with a piece of wire close to what you want to measure. You wouldn't use a battery cable strand or a 26gauge strand of wire.

Just sitting here, I would have sworn that the primary should be set to approx 0.017 inch give or take a couple of thou. I really need to take a look at that fsm.

Free, online FSM sarcasm???? Uh. NO. I swear at least, at least sixty percent of the questions on this forum could be answered by looking in the fsm. Soooooo....I assume there are a goodly number of people out the who don't know it is free, and online.

EXAMPLE: The is a post this day, hour, asking about oil pressure. The fsm has a section on the meters. It, the fsm shows how you can take a resistor of a given value and put it in series with the sender wire and ground that resistors other end and the gauge should read a given value. Now if the fsm had been read, that question about oil pressure would not have come up. He would have checked the reading out and come to the conclusion that the gauge or sender unit was bad or the voltage was absent on the sender wire. If that was the case then the wiring diagram would show the fuse involved and the path from the sender to the gauge.

On the other hand, YES it is sarcasm, in a sense.