First Generation Mustang Engine Coolant Trapped Air Burping/Bleeding Procedure

Описание: This video shows how to bleed or burp the cooling system on a First Generation Mustang engine. This can be applied to many other engines. It is important to burp the cooling system to ensure the engine coolant level behind the cooling system thermostat is in contact with coolant, and not trapped air.

This is done on a cool engine. It is not necessary, or recommended, that this be done on a warm or hot engine. There is no need for the coolant thermostat to be open to perform this burping procedure.

Initially I thought I was doing this to an engine that had a good level of coolant in it. But, as it turns out the cooling system was about 1 quart low on coolant (no bad), which let me show a more complete burping/bleeding routine than I had anticipated I would be able to do.

One may note in the video that I mention the engine is a 351 Windsor (not a Cleveland) v-8. Well, in 1973 Mustang 351s were all Cleveland engines, not Windsors - UNLESS the engine is a transplanted unit. Such is the case with our 1973 Mach 1. The prior owner replaced the 302 with a street/strip built 351W, which runs plenty strong - and fit in place of the 302 engine perfectly. If you have a 71-73 Mustang your thermostat housing is going to be oriented differently than ours, but the technique is the same, except the heater hose you will be removing to burp the system is not connected to your intake manifold. If you have a 302, 289, 260, or 351W your engine will look pretty much like ours (slight differences in the timing case cover and some other minor matters, but largely the same).