Thread: P38s on gas

Originally Posted by Pedro_The_Swift

sorry,, thats the right answer I guess
Mine starts first compression when cold, but when hot seems to take around 4-5 seconds to fire,, I think its trying (is?) to start on gas.

If you have a leaking injector or regulator it will allow gas to leak into the inlet manifold, flooding the warm engine and making it hard to start. If you run the engine on gas, stop the engine then disconnect each injector outlet hose in turn, check for flow using soapy water. Same with any hose from the converter/regulator to the inlet. No need to break into any pressure hoses.

you mean pull these hoses off the bottom of the injectors?(net pic)

Originally Posted by Pedro_The_Swift

you mean pull these hoses off the bottom of the injectors?(net pic)

Yup, certainly the only way to see if injectors are leaking into the manifold is to pull off the injection hoses leading into the manifold. Finger and spit, temporary hose into a tin of water etc, whatever method you use will find a leaky injector unless the leak's so fast the rail empties before you get there,
in which case your running may be seriously affected too.

Oh and if you do find a dodgy injector, the way I do a simple clean is easy. Take the injector rail concerned off the engine, fit a temporary outlet hose to each injector in turn, fill that hose with carby/throttle body cleaner and flush this back through the injector with compressed air. Repeat until the inlet junction of the rail runs clear.