I'm currently in the process of removing the fuel injectors and related parts to clean off the carbon deposits (engine has been hard to start, chewing up the starter mortor's armatuer from excessive cranking). I've had no problem pulling the injectors out of the bore...give it a little wiggle and eventually it would loosen and I would lift it out of it's hole. However I'm having the hardest time trying to lift out the precombustion chamber parts located deeper in the bore. After spraying the area with wd40, I would reach in with a pick but the parts won't budge! Any recommendations as to how to remove these parts? James and Tina Marohn Perelandra Vision 32 - Seattle, WA
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Gordon Torresen
Injector removal
What we generally try is not guaranteed to work and it is somewhat dangerous. We usually leave other injectors in place and remove one at a time, this is to keep the parts under control. You can reinstall two of your injectors without hooking up the fuel lines. The nuts only have to be finger tight. You then get a bulky turkish towel, or the like, fold it up and place it over the hole you are trying to get the parts from. While holding the towel in place, you ask Tina to crank the engine for a short burst. Keep in mind that you are catching a bullet. If you don't catch the parts in the towel, there is no telling where you might find them. Good luck. Understand what you are doing first and then be careful.
What we generally try is not guaranteed to work and it is somewhat dangerous. We usually leave other injectors in place and remove one at a time, this is to keep the parts under control. You can reinstall two of your injectors without hooking up the fuel lines. The nuts only have to be finger tight. You then get a bulky turkish towel, or the like, fold it up and place it over the hole you are trying to get the parts from. While holding the towel in place, you ask Tina to crank the engine for a short burst. Keep in mind that you are catching a bullet. If you don't catch the parts in the towel, there is no telling where you might find them. Good luck. Understand what you are doing first and then be careful.
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James Marohn
Catching bullets...
Hi! Thanks for the prompt response! Before I actually attempt to catch bullets, I am agreeing with you that it is important for me to know what I am about to do before actually doing it... By keeping one (of three) bores open and cranking the engine without the fuel lines attached, what is it actually that's going to shoot that part out of the bore? I'm assuming there is no combustion involved... Thanks! James Marohn
Hi! Thanks for the prompt response! Before I actually attempt to catch bullets, I am agreeing with you that it is important for me to know what I am about to do before actually doing it... By keeping one (of three) bores open and cranking the engine without the fuel lines attached, what is it actually that's going to shoot that part out of the bore? I'm assuming there is no combustion involved... Thanks! James Marohn
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Jack Laird
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James Marohn
Dental tools...
Tried using similar tools...I'm guessing that these parts been in there for 11 years and that they are baked in there with all sorts of petroleum byproducts glueing them in place... To be honest with you, catching a bullet doesn't sound appealing to me (nor to my wife). I just need to take the necessary safety precautions. -j-
Tried using similar tools...I'm guessing that these parts been in there for 11 years and that they are baked in there with all sorts of petroleum byproducts glueing them in place... To be honest with you, catching a bullet doesn't sound appealing to me (nor to my wife). I just need to take the necessary safety precautions. -j-
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Ernie Rodriguez
Catching bullets..
What you are attemptimp to do is to use the compression of the piston to push out the parts that are still in the chamber under the injectors. Like you say, the injectors come out easy enuf, but the remaining parts are a little tricky. The towell is a good way to catch them. You don't want any fuel coming out of the injector pump, so be sure to turn off the fuel line. You only need to crank the engine a few turns for the compression of the piston to force the parts out. Be sure to catch them all. I used that approach to remove the parts from my 3GM engine with about 3000 hours on it and it works quite well. Do one at a time and just be careful. Good luck, Ernie
What you are attemptimp to do is to use the compression of the piston to push out the parts that are still in the chamber under the injectors. Like you say, the injectors come out easy enuf, but the remaining parts are a little tricky. The towell is a good way to catch them. You don't want any fuel coming out of the injector pump, so be sure to turn off the fuel line. You only need to crank the engine a few turns for the compression of the piston to force the parts out. Be sure to catch them all. I used that approach to remove the parts from my 3GM engine with about 3000 hours on it and it works quite well. Do one at a time and just be careful. Good luck, Ernie
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Stevec
Message for Ernie Rodriguez....
Hi Ernie...... I see that you are from the Punta Gorda area.... If you don't mind, spending a few minutes could you e-mail me your address. I would like to get some 'local knowledge' about that area. Am planning to relocate. Steve.Chupak@avon.com Thanks....
Hi Ernie...... I see that you are from the Punta Gorda area.... If you don't mind, spending a few minutes could you e-mail me your address. I would like to get some 'local knowledge' about that area. Am planning to relocate. Steve.Chupak@avon.com Thanks....
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Gordon Torresen
Injector removal
"Catching bullets" might be a bit of an overstatement, but it did get your attention. Ernie's post explains what you will be doing and will make the job neater than my instructions. Pull the stop cable while cranking the engine and you wont have any fuel drips from the disconnected injection tubes. The precombustion chambers have an area of about a square inch and the cranking compression, with the injector out, is less than 300 PSI. The compression force on the chamber, therefore, is about 300 pounds. As soon as the chamber clears the hole that it is in, the pressure goes to zero. The towel does the catching without a lot of effort to hold it in place. The big thing is to not crank the engine while you are looking in the hole.
"Catching bullets" might be a bit of an overstatement, but it did get your attention. Ernie's post explains what you will be doing and will make the job neater than my instructions. Pull the stop cable while cranking the engine and you wont have any fuel drips from the disconnected injection tubes. The precombustion chambers have an area of about a square inch and the cranking compression, with the injector out, is less than 300 PSI. The compression force on the chamber, therefore, is about 300 pounds. As soon as the chamber clears the hole that it is in, the pressure goes to zero. The towel does the catching without a lot of effort to hold it in place. The big thing is to not crank the engine while you are looking in the hole.
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James Marohn
Thanks!!
Will be picking up all sorts of copper gaskets and parts this weekend and will give it a shot! Thanks for all the input! Ain't this technology great?
Will be picking up all sorts of copper gaskets and parts this weekend and will give it a shot! Thanks for all the input! Ain't this technology great?
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