Aeroquip fittings 816d-6

Christopher Murphy · #1 08-02-2010, 04:03 PM

I am getting ready to fab new fuel lines for the RV-4. Are aeroquip 816 type fittings reusable? Used with 601/701 hose.

CM

vic syracuse · #2 08-03-2010, 06:19 AM

Yes, they are reuseable. Do check them for serviceability after you disassemble the current hose, and then make sure you put a drop of oil on the threads when reassembling.

Vic

Scott Hersha · #3 08-03-2010, 09:50 AM

Also make sure there are no pieces of hose rubber stuck down in between the cutter and nipple. Just dig any of that out with a pick.

Christopher Murphy · #4 08-03-2010, 02:31 PM

I took the fittings off the hose and there is rubber stuck in that slot. I tried to get it out but I can't find a tool small enough and strong enough to get it out. Any suggestions?

Chris M

Mel · #5 08-03-2010, 02:54 PM

Quote:

Originally Posted by Christopher Murphy

I took the fittings off the hose and there is rubber stuck in that slot. I tried to get it out but I can't find a tool small enough and strong enough to get it out. Any suggestions?
Chris M

Dental pick!

mtnflyer · #6 08-03-2010, 04:45 PM

Chris
I have the mandrels for the AQ fittings and will back to FNL by 10 or 11 thurs morning..dave cook

ThisOne · #7 08-03-2010, 05:44 PM

Quote:

Originally Posted by Christopher Murphy

I took the fittings off the hose and there is rubber stuck in that slot. I tried to get it out but I can't find a tool small enough and strong enough to get it out. Any suggestions?

Chris M

Chris,
As already noted a dental pick is an ideal tool for this, another thing that I have found to work is the "tab" that is left over from a Band-it?. The stainless steel "tab" is thin enough to work your way down and around thus ensuring that you remove all of the left over hose.

Regards,
Brett

Bob Axsom · #8 08-04-2010, 07:59 AM

Chris I was in Radio Shack during my recent Terra NAV to Garmin SL-30 modification and I bought a small pack of soldering tools that I thought might be useful. It is out at the hangar now but as I recall there were six black double ended tools with a central red plastic gripping surface. They included both straight and curved tips. I've never used them for your task but I can imagine using them because of their configuration and size.

Bob Axsom

Christopher Murphy · #9 08-04-2010, 02:00 PM

Thanks for the tips. I have a dental pick but its too big to fit in the gap. I'll figure something out or get new fittings. thanks for the tips.

I much prefer 303 hose and 491 fittings but this is what I had origionally and I have not had vapor lock issues so I was trying to keep it the same.

CM

AlexPeterson · #10 07-26-2011, 08:01 PM

Anyone have any good ideas for getting the little ring of rubber out of the fittings?

I rebuilt some -8 hoses, no problem, the little piece of rubber comes right out. However, the -4 all leave the piece of rubber inside the fitting upon disassembly. Very miserable process removing it, nothing very strong can fit in there. I used a small drill bit in a pin vise, and chewed away at it. Took maybe 45 minutes to clean out two of them.

The -4 parts are cadmium plated steel, so perhaps heating to 500F (cadmium melting point about 600F) or so might destroy the rubber. I took a torch to one, but wrecked it by melting the cadmium.

Perhaps some sort of solvent will work - I'm not sure what rubber is in the old 601 hose.