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The cooling system bleeder screw is located at the highest point in the cooling system on one of the heater hoses. It allows trapped air to be bled from the cooling system. The screw is made of plastic and is prone to breakage.

ScrewLocation

bleeder screw

Temporary RepairEdit

Some might consider this a permanent repair. Obtain any commonly available heater hose with a 90 degree bend. One such hose is the Gates 19604, which actually has two bends. Reuse the spring-type hose clamps, cut off any unneeded length of hose, and insert it as a replacement.

GatesHose

A commonly available Gates hose

GatesInstalled

Common heater hose installed

Hose SalvageEdit

If your bleeder screw gets broken, don't give up on the hose. You can use traditional screw extractors on the remains of the scew. You'll be fortunate if the screw extractor succeeds in extracting the screw, but at the very least, a reverse-threaded type screw extractor should succeed in removing some of the plastic material. After removing as much material as possible this way, use a 6mmX1.0 screw tap to remove any remaining plastic material.

ScrewTap

Using a tap to remove material

SalvagedHose

Salvaged hose

Replacement ScrewEdit

To replace the original screw with an identical plastic version, it's necessary to replace the hose. The hose can't be purchased separately, and can only be obtained as a component of a larger assembly that contains two T fittings (one for a sensor and one for a hose) and several sections of hose.

Another alternative is to purchase a replacement brass screw, which is currently available from eurocampers.com.

BrassInstalled1

Brass replacement screw

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