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How important is it to torque down the throttle body bolts?

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Old 06-22-2013, 10:02 PM
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MustangFirstCar
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Default How important is it to torque down the throttle body bolts?

I bought some CRC TB cleaner today because my idle has been a little rough. I plan on buying a ported and polished TB from Jerry soon, but I figured that until I had the spare cash, I might as well clean my current TB.

Well I wanted to clean it without removing it, so I just removed my CAI and sprayed it in there, wiped it out with a clean rag. Also I may or may not have been a few beers deep at the time and forgot that the TB is coated, so I used a screwdriver to push open the throttle plate (which was obviously a stupid idea, hopefully it wasn't enough to cause any problems?). So long story short, I tried to clean behind the plate and the rag came back completely black! So I want to remove my TB and clean behind it. Only problem is that I looked up what the service manual had to say and it says that the bolts need to be torqued down to 89 ft/lbs, and I don't have a torque wrench.

So basically what I'm asking is how necessary is it? Can I just tighten the bolts by hand? Or should I just leave it alone for now until I get a torque wrench? Also, any suggestions on a good torque wrench under 40 bucks?

Thanks forum
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Old 06-22-2013, 10:17 PM
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Tom V
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I tightened mine using a 1/4" ratchet. Firm but not ape sh** tight. I haven't had any problems.
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Old 06-23-2013, 01:45 AM
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White05GT
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Originally Posted by Tom V
I tightened mine using a 1/4" ratchet. Firm but not ape sh** tight. I haven't had any problems.
Same here, cleaned mine a couple of times now. Much easier off the car.
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Old 06-23-2013, 02:01 AM
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aaquib1992
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I doubt you really hurt anything by using the screwdriver, but grab a flashlight and take a closer look at the edges of the plate just to make sure.

When I clean mine I just torque them down to about 85 ft. lbs. as my TQ wrench is not that exact. Being a few foot pounds off isn't going to cause any catastrophic failures or anything, just get it pretty tight and call it a day. If you're really paranoid, check on it a few days later and make sure nothing came loose.
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Old 06-23-2013, 06:31 AM
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slipperman
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Originally Posted by MustangFirstCar
...... Only problem is that I looked up what the service manual had to say and it says that the bolts need to be torqued down to 89 ft/lbs, and I don't have a torque wrench.......
89 ft/lb is enough for a lug nut. WAY too much for a throttle body stud/nut.
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Old 06-23-2013, 07:31 AM
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moosestang
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Originally Posted by Tom V
I tightened mine using a 1/4" ratchet. Firm but not ape sh** tight. I haven't had any problems.
This^^^ Use a 1/4 inch ratchet if you have one. It's more important to torque them evenly and don't over tighten them.
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Old 06-23-2013, 07:46 AM
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Matt's 95 Stang
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Originally Posted by slipperman
89 ft/lb is enough for a lug nut. WAY too much for a throttle body stud/nut.
I was thinking the same thing.

Like someone else said - tight, but not ape chit tight.

Matthew
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Old 06-23-2013, 01:52 PM
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MustangFirstCar
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Well 89 ft/lbs is what the FSM recommends, I just wanted to make sure.

I guess I'll just try to be firm without overtightening anything. Thanks for the help everyone.
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Old 06-23-2013, 02:11 PM
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2011scgt
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89in/lbs
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Old 06-23-2013, 02:26 PM
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stealth_GT
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Originally Posted by 2011scgt
89in/lbs
Ditto

I'd tighten them down evenly, going in a criss cross pattern. Snug but not gorilla man tight!
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