Offshoreonly.com - Need plastic elbow for 99 454 mag efi flame arrestor

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FBRONCO

06-08-2018 08:55 PM

Need plastic elbow for 99 454 mag efi flame arrestor

I tried to remove the valve cover breather hose from the flame arrestor and broke the plastic elbow that is glued on to it. Anyone know where I can get one? It looks like Mercury does not sell it separately. It is just glued to a plastic tube coming out of the side of the flame arrestor.

Griff

06-09-2018 01:23 AM

I have one that is broke too and have looked for several years. Never found a part number for it. I've always intended to fab one by drilling the arrestor and screwing or gluing in a 90* elbow.

FBRONCO

06-09-2018 07:07 AM

Yea. It would be nice to figure out the part for it instead of paying $180 for a new one.

Griff

06-09-2018 08:22 PM

https://cimg9.ibsrv.net/gimg/www.off...0b0eda583.jpeg
https://cimg0.ibsrv.net/gimg/www.off...e9722e0b3.jpeg
https://cimg1.ibsrv.net/gimg/www.off...84e60c534.jpeg
Your post was a reminder for me I finally got around to fixing mine. I modified some Pex fittings I got at menards. I filed off the little tab on the arrestor so it was just round. I then cut down the threaded side of the fitting. The inside diameter of the threaded end was a little small to fit on the flame arrestor nipple so I reamed it out to with a die girder and Dremel tile bit so it would fit but still be tight.

BUP	06-09-2018 09:46 PM

done the same and used black gasket adhesive sealer on the threads. -- also have used a grommet sized correctly and very snug fitted hose

Griff

06-09-2018 10:09 PM

I'm not using the threads at all. That fitting just had the closest inside diameter. It is just pressed onto the nipple like the OEM one was.
It will pull it off like the OEM but will not fall off. The marks on inner diameter are from the tile bit

FBRONCO

06-10-2018 07:45 PM

Thanks! That's just what I needed. I'll give that a try tomorrow.

FBRONCO

06-11-2018 07:13 AM

Quote:

Originally Posted by Griff (Post 4631152)

Do you have to put a clamp on the hose or is the fit snug enough?

Griff

06-11-2018 12:28 PM

Quote:

Originally Posted by FBRONCO (Post 4631358)

Do you have to put a clamp on the hose or is the fit snug enough?

It was slightly loose from having the old fitting in it. I used a zip tie on the hose to snug it up.

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