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Old 08-11-2010, 11:54 AM
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Holley carb bolts... how tight?

When rebuilding a 7160 carb, how tight should the bolts be done up?

Also, are there any gaskets or washers that must be replaced whenever they are removed?

Thanks.

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Old 08-11-2010, 05:45 PM
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Well to start off torque them down about 5 to 6 ftlbs and no more. Make sure you snug the bolts in a criss cross pattern first then torque them down. I do mine about that much and it works out fine. If you use just regular bolts on your carburetor and using lock washer put a regular washer down first then the lock washer then the bolt. I use carburetor studs instead of bolts but either way works.
Eric
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Old 08-11-2010, 06:11 PM
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Quote:
Originally Posted by v8hed
When rebuilding a 7160 carb, how tight should the bolts be done up?

Also, are there any gaskets or washers that must be replaced whenever they are removed?

Thanks.
You talking about the bowl gaskets/hardware or the carb to intake?
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Old 08-11-2010, 06:13 PM
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Quote:
Originally Posted by cobalt327
You talking about the bowl gaskets/hardware or the carb to intake?
Bowl gaskets/hardware, vacuum canister screws, primary pump screws, etc.

Thanks.
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Old 08-11-2010, 06:24 PM
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Quote:
Originally Posted by v8hed
Bowl gaskets/hardware, vacuum canister screws, primary pump screws, etc.

Thanks.
The bowls have fiber gaskets (some aftermarket gaskets are reusable) under the heads of the screws.

The bowl gaskets will almost always tear if the carb has been in service long. If they do, you'll want to replace them. Even the "non-stick" gaskets WILL stick, so be prepared. Tighten the bowls in a couple stages, in a criss cross.


The exact in/lb of torque of the various fasteners I have never known, I tighten them all "snug", then recheck after the engine has run a few times. What you want to avoid, is to overtighten the fasteners, yet be tight enough to not leak.
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Old 08-11-2010, 07:20 PM
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Sorry about what I stated. I thought you meant the carb to intake. Just like cobalt said tight enough but not too tight. I usually just tighten up each screw in a criss cross pattern till they are snug then wrist tighten them and thats it. After a few heat cycles I check them and make sure they are still tight. Don't crank it hard but just enough to make it snug by turning your wrist with a nut driver.
Eric
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