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Compression test gone wrong...

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viseversa101

Proven Member
80
3
Mar 10, 2013
millbury, Ohio
Decided to do a compression test on my 420a, first one read 165psi, moved to the next and got 175psi. When trying to remove the hose the tip came loose instead :cry: After tooling together a pair of needle nose pliers and removing it, I noticed a piece had broken off of the tip and was now laying around the hole to the piston. After hours of frustration and attempts I only knocked it down inside the engine :ohdamn:

What the hell do I do now? Ontop of which I noticed the 4th plug drenched in oil so Valve cover gasket needs replaced. Any suggestions?
 
try using a vacuum cleaner

How's that going to work? The cyclinder is a sealed area and you can not put the vacuum tip right on the object.

If it is steel use a magnet. If not lower the piston to the bottom of the stroke and center the object on the piston. place a sticky substance on the end of a thin stick/rod (silicon or rtv are good) and then stick it down the spark plug well through the plug hole and pick the object out. Good luck.
 
How's that going to work? The cyclinder is a sealed area and you can not put the vacuum tip right on the object.

If it is steel use a magnet. If not lower the piston to the bottom of the stroke and center the object on the piston. place a sticky substance on the end of a thin stick/rod (silicon or rtv are good) and then stick it down the spark plug well through the plug hole and pick the object out. Good luck.

Tape a small hose to the vacuum cleaner nozzle and stick it down the hole? As long as the hose is smaller than the spark plug hole it should work fine. Your recommendation is great though.
 
Tape a small hose to the vacuum cleaner nozzle and stick it down the hole? As long as the hose is smaller than the spark plug hole it should work fine. Your recommendation is great though.



I'l pull the head before I invest anymore time in this method


Quote:
Originally Posted by Lou98GSX
try using a vacuum cleaner
How's that going to work? The cyclinder is a sealed area and you can not put the vacuum tip right on the object.

If it is steel use a magnet. If not lower the piston to the bottom of the stroke and center the object on the piston. place a sticky substance on the end of a thin stick/rod (silicon or rtv are good) and then stick it down the spark plug well through the plug hole and pick the object out. Good luck.


next method, this n prayer
 
use one of these
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retractable cats paw. some are led lighted which is tits for this
 
The vacuum cleaner with a hose sounds like a great idea. Not sure why your so opposed to it.

The magnet or the pickup tool posted above should work also. Just seem harder then getting a shop vac, a rubber grommet to put over the shop hose, a small hose to fit down into the spark plug hole and a couple clamps to clamp it all together.

Shit, I could piece that together right now. I'd clean the vac out first to be sure I got it.
 
I've made numerous attempts throughout today and have failed every one. The piece I dropped inside is brass so its nonmagnetic. First i tried tweezers. Then modified some needle nosed pliers. I tried the vacuum, I then tried a fine tube attached to the vacuum, I tried sticky tape on a coat hanger I tried compressed air. All a waste of time and frustration. I'l just pull the head and do it the right way.
 
Can you see the piece down in the cylinder? You approached original situation way wrong to begin with. I had this same issue once before the end of the compression tester got stuck the cylinder. I ended up using locktite on a spark plug I threaded into the adapter piece. Let it set up and then it came right out.
 
I am not against the vac. But you are going to stick a small tube down in to the cyclinder, how big of a piece of material can you 'suck' up that small tube? More than likely the item is close to the size of the spark plug. How is it going to go up a tube?
 
I provided a picture below to give you an idea of the size of whats in the hole, please note its brass...so it is not magnetic :cry:
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The chunk missing is intact as 1 large piece...
 

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go get the cats paw tool i showed you put the piston all the way down so you can see the piece when you shine a light down the spark plug hole and reach in and grab it. no need to pull the head. i think harbor freight sells the cats paw tool for like 10-20 bucks. cheaper than time and a head gasket.
 
how the fek you break the brass with a simple compression test? you sure theres only one peice? if so yeah try a vacuum... tape a large straw to the tip of a vacuum, like the big gulp sized straw or even a peice of 1/4" or 3/8" vacuum hose, and wiggle it around you should be able to get it like that.
 
My Easter weekend has come to an end and I am out of time. Work/class all day tomorrow, I will update the status of this headache Tuesday afternoon.
 
I am not against the vac. But you are going to stick a small tube down in to the cyclinder, how big of a piece of material can you 'suck' up that small tube? More than likely the item is close to the size of the spark plug. How is it going to go up a tube?

It doesn't necessarily have to get sucked into the tube. The suction may be enough to hold it onto the end of it so you can pull it out.
 
Sorry for not updating tuesday. Well, I decided to tackle this headache with a coathanger and a little rtv. After an hour or so give or take I was able to pull it out :sly: I think itl go in a vile n hang from my rear view. Gave it a compression test of 180 180 180 210 new valve cover gasket. Plugs n a set of tgks. Also replaced a vacuum hose leak. I will post a picture of what I was able to pull out after work.

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