Conestoga injectors bought! Couple install questions?

larson

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Once i get the old ones out what am i getting into as far as cleaning the injector bores? How clean do they need to be and what tools are recommended to clean the bores?
Whats the torque specs for installing the new ones?
 

icanfixall

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Easy to clean out the bore IF... They are not filled with carbon. Just make very sure you get the old copper gaskets out. You do NOT want two gaskets in the bore. A 12 gauge cleaning brush works well. Make sure you clean off the top of the engine around the injectors too. Crank the engine over a few times with no injectors in to blow out any crap. The torque is 35 ft lbs.Please use anti sieze on the injector body threads ONLY. You really do not want it on the copper gasket. Use a straight dental pic to "feel" the cast iron seat in the head for compression cuts. You place the point on the seat and move it around the seat. It there is a cut it drops in and stops like hitting a wall.
 

larson

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Easy to clean out the bore IF... They are not filled with carbon. Just make very sure you get the old copper gaskets out. You do NOT want two gaskets in the bore. A 12 gauge cleaning brush works well. Make sure you clean off the top of the engine around the injectors too. Crank the engine over a few times with no injectors in to blow out any crap. The torque is 35 ft lbs.Please use anti sieze on the injector body threads ONLY. You really do not want it on the copper gasket. Use a straight dental pic to "feel" the cast iron seat in the head for compression cuts. You place the point on the seat and move it around the seat. It there is a cut it drops in and stops like hitting a wall.

Ok so the injectors im pulling out have 205k miles on them as far as i know so there might be some carbon. will the bore brush clean that up? Also what is the fix if there are compression cuts on the seat?
 

Thewespaul

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There is a rotunda tool for cutting a new seat if your seat is worn. I have a few I can rent out.
 

IDIBRONCO

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Ok so the injectors im pulling out have 205k miles on them as far as i know so there might be some carbon.
First, WOW! that's a lot of miles! Second, that's not a guarantee. If the seats are in good shape and the copper gaskets were always well sealed, I can see no reason why there would be excess carbon build up.
 

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