175HP - Recirculating Hose Nipple Broke - Bypass OK?

[CharlestonFX175]

Hi All,

Thanks Charlie B for helping the French guy!


175HP Carb (jet boat/drive)

There are 6 recirculating hoses that seem to run from crankshaft area to piston heads.

At the piston head section, middle piston, one hose had fell off, slit with dry rot.

I snipped it and upon refitting to the nipple, the nipple broke off the L fitting, (threaded to nipple) and when I tied to remove the remaining square threaded fitting, it broke/sheared off, with the threaded shaft still in the piston head/block.

I intend to try and find a replacement fitting.

In the meantime, I'm wondering:

1- Can I put a small screw into the hole of the broken fitting to block it off and run without harm?

2- Should I also block off the hose coming from the crankshaft area?


Just want to make sure I can run the engine without risk until I replace the fitting.

While were at it: When I try to remove the broken fitting with a reverse thread extractor, if a few small (very small) pieces fall back into the piston head, will those just blow out of there next time I crank, or could it be a problem?

Thanks

Tony

 

[CharlestonFX175]

Re: 175HP - Recirculating Hose Nipple Broke - Bypass OK?

Upon idling, I noticed a little bit of fuel oil mix trying to seep out of the blocked hose (not really blocked, just a screw inserted into the hose end)

I'm guessing that the flow from this hose should go somewhere instead of dripping into the bilge.

Is blocking it off solidly perhaps not a good idea?

Does this make unburnt fuel accumulate instead of recirculating?

Another thought crossed my mind:

Could I just:

1- Keep the piston head inlet hole plugged
2- Insert a T fitting into one of the other hoses that are leading into another piston head (top piston)
3- Connect the other hose into this one?

Thanks for any advice.