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Cylinder Head Seal

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GenuineXL 999-702-047-50 Cylinder Head Grommet for Oil Breather Tube - Replaces OE Number 999-702-047-50
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Warranty : 24-month limited warrantyAnticipated Ship Out Time : Same day - 1 business dayQuantity Sold : Sold individually
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Cylinder Head Seal Guides

How to Fix Your Cylinder Head with a Cylinder Head Seal Product

The cylinder head is a vehicle part that sits atop the engine block. It creates a combustion chamber of sorts by closing the top of the cylinder. A head gasket is used to seal the gap between the head and the block. It usually contains the passages that remove the exhaust and supply the air and fuel to the cylinder. With that said, what should you do to fix your damaged or compromised cylinder head? You should use an engine block or cylinder head seal to repair this component.

Difficulty Level: Easy

What You'll Need

  • Cylinder head sealant
  • Bucket or drain pan
  • A fresh bottle of antifreeze

Step 1:Drain the antifreeze from the radiator. Once all of the antifreeze has been drained out, then you can go about flushing the system. Remember; don't just pour the sealant onto the head gasket without first flushing out the radiator.

Step 2: Do a visual inspection of the coolant while you're at it. If it's dark brown in color, then that might indicate the need for a more thorough cleanup (your car probably hasn't been flushed for a long time). Regardless, you'll still need to flush everything anyway.

Step 3:You can buy a $3 flushing agent to do the flush. Just follow the instructions on the bottle or kit box and get the whole system cleaned out prior to dealing with your cylinder head repair.

Step 4:Once the engine has been cooled down, add water to it. Make sure you leave enough room for your additive. Afterwards, add head gasket sealant to repair the leaks and cracks on it that results in coolant loss. Shake the bottle, pour it, and go.

Step 5:The engine should be topped up with water before letting it bleed the air.Bleeding the air from the system involves opening your bleeder valves and removing the radiator cap then running your engine until it's warm. You should then topup everything with water until it can't hold any more of the liquid.

Step 6:Continue topping off the engine till it's full of water and then replace the radiator cap.Put the car in idle for 30 minutes or whatever the recommended time on the label of the product is. There are even sealants that require you to leave it in your engine while you drive for several miles.

Step 7:After leaving it there, drain all the water and sealer. Leave the orifices open as you let your car dry for a day (a full 24 hours). Flush everything again once with water and then drain the water. Fill the recommended coolant to water mixture on your car after the last drain. Sometimes, you might have to leave the sealer for a weekto ensure maximum impact.

Your cylinder head might be experiencing failure because of overheating from constant coolant loss, restricted coolant flow, or a broken head gasket. Your entire engine could get terminal damage if your damaged or cracked cylinder isn't fixed post-haste with the right sealant application. You should do all of the above steps to save your head cylinder from further destruction, or else you might have to replace your whole engine when worse comes to worst!

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