How to get a stuck slow jet out????

[Andrew_lbreman]

I have tried soaking for a day in gallon can of carb cleaner, sand blasting away all the crud, soaking in pb blaster. I started to strip it a little and dont want to go further without a good strategy. I would like to save the jet if possible. Any thought or help would be great. I am taking the carb down to every piece. The carb was full of salt water and crud everywhere.

 

[howie099]

Damn I hates thhose small jets. Mikuni does make an exact fit screwed driver that works great for it. You can try to tap the jet with a screwdriver and hammer to see if you can free it up. That brass can't take much before is falls apart. Atleast if the carb gets messes up you get more on fleeBay pretty cheap.

 

[get_real]

Think you've tried about all the options. Did you let the PB blaster soak for a day or two with repeat applications? The last thing I might try is a little heat from a pencil torch, but you'd have to ensure you didn't over do it.

 

[get_real]

[MENTION=52072]Andrew_lbreman[/MENTION] Just curious what the outcome was on the stuck jet?

 

[Dr Honda]

I have tried soaking for a day in gallon can of carb cleaner, sand blasting away all the crud, soaking in pb blaster. I started to strip it a little and dont want to go further without a good strategy. I would like to save the jet if possible. Any thought or help would be great. I am taking the carb down to every piece. The carb was full of salt water and crud everywhere.

Wellllllll........

Modern "soak" carb cleaner sucks. It doesn't do anything other than swell rubber parts, and soffen paint. (Usless)

Sandblasting will make it worse. You will force abrasive junk into the threads, and errode the internals. (bad)

PB blaster has sulfer, and that will eat yellow metals. (bad on the jets)


So... with the above said... you have to get it apart to clean it... and the only way that will happen now is to use a left handed drill bit. Basically... as you start to drill... you will remove the metal, and that will release some pressure on the threads. Also... by using a left handed drill... and going slow... there is a chance that it will grab and run the jet out. Yes... it will destroy the jet... but at this point (with your above methods) we have to assume it's already destroyed.

You can get a small pack of left handed drills at harbor freight for about $10. They are indispensable in situations with a stuck, threaded item. (bolts, jets, studs, ect)

Start with the smallest that will drill, and slowly work your way up. You may have to go a size or two... but it will eventually grab, and come out. (I've done it more times than I can count)

Damn I hates thhose small jets. Mikuni does make an exact fit screwed driver that works great for it. You can try to tap the jet with a screwdriver and hammer to see if you can free it up. That brass can't take much before is falls apart. Atleast if the carb gets messes up you get more on fleeBay pretty cheap.

Take a small craftsman flat blade... and grind the two edges off. It will fit perfect down into the small jet hole.


A small tap with a hammer is a great suggestion. It will help free tight threads. I use that method before trying to remove the jet block. I give them a few good taps... and then hit them with a hand impact.

 

[IDoSeaDoo]

wow, I don't think I would ever put a carb into a sand blaster. Be sure to get all the media out of there. That stuff gets EVERYWHERE!!

 

[get_real]

Wellllllll........

You can get a small pack of left handed drills at harbor freight for about $10. They are indispensable in situations with a stuck, threaded item. (bolts, jets, studs, ect)

Start with the smallest that will drill, and slowly work your way up. You may have to go a size or two... but it will eventually grab, and come out. (I've done it more times than I can count)

Thanks Doc, great info, never heard of reverse drill bits. I guess you could also try using an easy outs if you're not trying to save the jet, but those often don't work. Like the idea of the drill bit helping turn the thing in the right direction!

 

[Coastiejoe]

How about an impact screwdriver type tool?

I know we are talking about a small item, but if you have an item that will fit the jet well and use an impact wrench, it will either come out or break. If it breaks, you have to drill it out anyways...

Left hand drill bits are a great tool. One thing you want to do right is to CENTER the bit well. This way if it does not come out and you do actually need to drill all the way, you can either easily tap the threads or sometimes be able to spin what is left of the threads right out..

 

[Dr Honda]

Thanks Doc, great info, never heard of reverse drill bits. I guess you could also try using an easy outs if you're not trying to save the jet, but those often don't work. Like the idea of the drill bit helping turn the thing in the right direction!

I hate EZ outs. Basically they are tapered... so as you tighten them into something soft (like a jet, or very small bolt) it will actually make it tighter, and harder to remove. I only use a "Stud extractor" as a last option. Most of the time... if I'm getting to that point... I just drill it. and run a tap into the hole.

But trust me... as you get close to the minor diameter of the threads... it will come out.

 

[jhjesse]

Kroil is the best penetrant in my opinion for getting stuck bolts.
We use kroil when disassembling gas turbines after 34,000 run hours.
We use it on every size and thread pitch bolt from 6mm to 100mm diameter.

http://www.amazon.com/Kano-Kroil-Penetrating-liquid-KROIL/dp/B000F09CF4

 

[get_real]

I hate EZ outs. Basically they are tapered... so as you tighten them into something soft (like a jet, or very small bolt) it will actually make it tighter, and harder to remove. I only use a "Stud extractor" as a last option. Most of the time... if I'm getting to that point... I just drill it. and run a tap into the hole.

But trust me... as you get close to the minor diameter of the threads... it will come out.

I agree Doc, that's usually what I do when the EZ out fails, just drill out the bolt, then chase it with a tap. Will pick up some of those reverse bits and look forward to trying them next time I'm in a jam.