What's an edge filter and do I need one?

[starman]

On my JP3 The extension piece that links each main fuel injector body with its fuel pipe has what the manual calls an "edge filter" in it. (A needle like "X" section length of rod). Except one of them is missing.

Does it matter? What do they do? Everything seems to work ok without it.

[harve90]

http://www.google.co.uk/url?sa=t&rct=j&q=lister%20jp3%20manual&source=web&cd=2&ved=0CCYQFjAB&url=http%3A%2F%2Fwww.boatservicehaarlem.nl%2Flister_jpm_and_jkm_marine_propulsion_workshop_and_parts_manual.pdf&ei=OlnwU5dFo-jsBuvxgMAL&usg=AFQjCNEsutqDoX9TKWrjNqkV_Dlqq59oNA&sig2=vay_JWs_3obUIq7yehP80Q

 

 

I have no idea but this may be of help, good luck

[starman]

http://www.google.co.uk/url?sa=t&rct=j&q=lister%20jp3%20manual&source=web&cd=2&ved=0CCYQFjAB&url=http%3A%2F%2Fwww.boatservicehaarlem.nl%2Flister_jpm_and_jkm_marine_propulsion_workshop_and_parts_manual.pdf&ei=OlnwU5dFo-jsBuvxgMAL&usg=AFQjCNEsutqDoX9TKWrjNqkV_Dlqq59oNA&sig2=vay_JWs_3obUIq7yehP80Q

 

 

I have no idea but this may be of help, good luck

Thanks for the thought - I've got one of those and it has a nice diagram of the injector but no info!

[BEngo]

On my JP3 The extension piece that links each main fuel injector body with its fuel pipe has what the manual calls an "edge filter" in it. (A needle like "X" section length of rod). Except one of them is missing.

Does it matter? What do they do? Everything seems to work ok without it.

 

This filter is there as a final line of defence for the injector moving parts lest a piece of crud get into the pipe between the pump and the injector. Edge filter is a description of the way it works.

 

If there is no crud then everything will work fine without it. Just be careful to keep that injector pipe really clean if removed, stop the ends against dirt and blow it out well before refitting, though you should do that with all the injector pipes.

 

N