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164E fuel lines 140-160 1973

posted by  someone claiming to be Niel on  Sun Jul 11 23:18 CST 2004 [RELATED]

Be very careful with your FI fuel pump. It uses the fuel to cool down the pump. Also, the commutator (the part that the brushes push against) makes a lot of sparks while the pump rotates and is exposed to fuel. It is no problem while installed, because there is no air to allow the fuel to burn (just like too rich a mixture stalls your engine), but there is plenty of air when the pump is removed from the car. It is a major fire hazard!

Try soaking the pump with carburettor cleaner and leave it for a few hours. Then soak it again and allow to run out as jou spray in. This will flush dirt out. Once completely dry it is OK to run the pump for a few seconds, but not much longer as there is no fuel to cool approximately 50W to 100W of heat (as much as a light bulb).

Have fun...






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