drop screw into engine

[lenardn730]

I have a yanmar 2000. I drop a small machine screw down through the air filter. I need info on how to get it out, can I pull the injector to fish it out or wiil I need to pull the Head.

 

[MIKE R]

I have a yanmar 2000. I drop a small machine screw down through the air filter. I need info on how to get it out, can I pull the injector to fish it out or wiil I need to pull the Head.

Did you try one of them magnets on a pole yoy may be able to get if like that.

 

[EE_Bota]

If you try a magnet, and it has to go around a curve, that can be a problem. Also, sometimes a magnet tries to stick to everything. I read somewhere that in those cases, one of the button magnets installed into the end of a piece of rubber hose can sometimes work.

 

[300UGUY]

Whatever you do, get it out. When I worked in a GM engine plant (30 years), the #1 cause of failure was "stock in the block" - somebody dropping something in a engine, usually during a repair sequence. We eliminated this by simply not repairing any engines! If it isn't 100% right, it gets scrapped. Our warranty dropped by 95%.

 

[winston1]

Do you know it made it's way into the cylinder? If not, you might try pulling the intake manifold and probing.

 

[mjw357]

Turn the tractor upside-down and shake it.

 

[California]

I have a yanmar 2000. I drop a small machine screw down through the air filter. I need info on how to get it out, can I pull the injector to fish it out or wiil I need to pull the Head.

DON'T CRANK THE ENGINE!!! Your question assumes the screw got past the valves into a cylinder, but I doubt it has. This is because that would have already trashed the engine. There is only a few thousandths between the piston and the head; just the thickness of the head gasket. So anything in there while running would have punched a hole in the piston.

The top of the intake on these is cast together with the aluminum valve cover. Since it is aluminum there shouldn't be a problem snaking a flexible magnet down there. It is also easy to remove the valve cover if you can't get a magnet down far enough. Note the valve cover gasket is flexible rubber and reusable so be gentle taking it off. After the intake/valve cover is off, you should be able to see into the passages and it should be easy to get your magnet in there. Maybe a tiny dental mirror would help.

Forget about pulling injectors, there are chambers below the injectors that have to be pressed out from the combustion chamber side before you have an opening that a screw could pass through.

 

[deepNdirt]

depending on the size and how heavy....any chance it could be sucked out with a strong shop vac adapted with a small rubber hose? just a thought

 

[California]

depending on the size and how heavy....any chance it could be sucked out with a strong shop vac adapted with a small rubber hose? just a thought

I like that. Blowing compressed air at the same time might get the screw moving around to where the vac can reach it. But devise some way to know for sure that the screw came out. Maybe put a screen where the tiny hose goes into the vac's big hose etc.

 

[smilingreen]

Trade it in......