Mercury water PSI fitting question?

[Guest]

How exactly does this fitting tighten around the plastic hose once inserted? Do I just insert the plastic hose from the gauge into the fitting and tighten the fitting to the engine block?

Thanks

 

[achris]

How exactly does this fitting tighten around the plastic hose once inserted? Do I just insert the plastic hose from the gauge into the fitting and tighten the fitting to the engine block?

Thanks

2 questions.

Question 2... Yes.

Question 1. Inside the fitting is a brass 'sleeve', called an olive. As you tighten the fitting, the olive crushes slightly and holds the plastic tube...

HTH,

Chris.......

 

[Fun Times]

Nope, all you need to do is install the fitting to the engine, then push the plastic tubing into the inlet opening till it stops, then pull back on the tube to be sure it is attached securely. Slide-in fitting will secure (lock in) the tubing itself.

 

[Guest]

thanks Chris!!

 

[Texasmark]

I know of achris's capabilities and love his Bertram. However, I have used this type fitting on numerous things around the water and my farm and I would do it differently. I would install the fitting first. Then with a nice squared off, cleanly cut end on the tube, push it in until it stops. Inside the ones I have used is an olive, or spring finger ring that has fingers that point toward the engine. Insertion of the hose goes in the direction of the fingers and their spring tensioning forces the tips against the hose. Attempting to remove the hose forces the tips into the hose and prevents removal.

Think about the plastic wheels on a cheap device with a shaft and a couple of wheels. Most of the time the wheels are held on with a cap with similar capabilities. Just a tap on a hammer and the cap is on since you are going with the fingers. But if you pull backwards on the cap the fingers bite into the shaft and hold it on.

The reason I wouldn't install the hose and then screw into the engine is that if the fingers are such that they will not easily slip around the interior of the connector and remain embedded in the hose, they could either twist the hose as you screwed if they held, or if they didn't hold, could cut through the hose and make for an unreliable joint.

But this is my opinion and is based on speculation that your fitting and my experiences are of the same type retainer.

Mark

 

[Guest]

hey TexasMark, the fitting does have a small finger ring inside. What you're saying does make sense, I think I'll screw the fitting into the block first then simply insert the hose? That's what I was concerned about, twisting the tube. ty

 

[Faztbullet]

Its works like a shark bite fitting, install fitting in block and then insert line. To remove line just in on black ring and pull line out....

 

[achris]

Sorry, my assumption was the fitting would be screwed into the block BEFORE to tube is pushed in (that's standard practise).... Then the fitting tightened onto the tube while it's in the engine.

Chris......