ARGO Posted October 30, 2021 Report Share Posted October 30, 2021 So I have this fuel drip from the block where the lines come together between the frame. It's on a little bracket above the driveshaft. I'm gonna' pull it off & open it up, looks like a plate on one side. Anybody fool with this? Any experience with what's inside? Quote You'd have to see the movie to understand.......... Link to comment Share on other sites More sharing options...
NeverEasy Posted October 30, 2021 Report Share Posted October 30, 2021 Make/model/engine/year would help. Quote Chet & Deb '01 Volvo 660 w/ Smart '19 Forest River Columbus 320RS 5th wheel 2022 Chev 2500HD Long Bed Retired CWO4, USN and federal service Electronics Tech/Network Engineer/Welder/Machinist Link to comment Share on other sites More sharing options...
Darryl&Rita Posted October 30, 2021 Report Share Posted October 30, 2021 Might be a plain Tee, or it's a fuel splitter. A Tee is empty inside, while a splitter has a shuttle to send returned fuel to the tank with the lower level. Quote I have been wrong before, I'll probably be wrong again. 2000 Kenworth T 2000 w/N-14 and 10 speed Gen1 Autoshift, deck built by Star Fabrication 2006 smart fourtwo cdi cabriolet 2007 32.5' Fleetwood QuantumPlease e-mail us here. Link to comment Share on other sites More sharing options...
Wrknrvr Posted October 30, 2021 Report Share Posted October 30, 2021 I took mine apart once. There was a o ring in there that when I reinstalled it it leaked. I pinched the edge. That o ring goes in a grove that is not circular, but still is a o ring. I did not have the correct size in my kit. Went to the hardware store to find one. This is a long shot on the size. I think it was 1/16” by 1 1/4” diameter. I think I ended up putting a new valve in as the fuel line came in at a 90 degrees on our 2000 Volvo. And caused it to leak at the pipe threads. I noticed a newer Volvo had the fuel line come straight in to the front of the valve. Hope this helps, Vern Quote Link to comment Share on other sites More sharing options...
chief916 Posted October 30, 2021 Report Share Posted October 30, 2021 2 hours ago, ARGO said: So I have this fuel drip from the block where the lines come together between the frame. It's on a little bracket above the driveshaft. I'm gonna' pull it off & open it up, looks like a plate on one side. Anybody fool with this? Any experience with what's inside? Mine was dripping a couple years ago so I just had mine replaced at a mom and pop truck shop. The part wasn't expensive as I recall. Never thought to take the part and tinker with it as I was relatively new to big trucks and didn't know much about them. Quote Link to comment Share on other sites More sharing options...
ARGO Posted November 1, 2021 Author Report Share Posted November 1, 2021 OK, took the little bugger apart. FYI, it is a fuel splitter block with a small rubber valve to direct return flow to each tank. The plate covering this has a square ring like an O ring in a recess in the block. That's what was leaking on mine. Cleaned it up, "helped" it a little with some RTV sparingly applied & we'll hope for the best. Tks for the replies! Quote You'd have to see the movie to understand.......... Link to comment Share on other sites More sharing options...
rickeieio Posted November 1, 2021 Report Share Posted November 1, 2021 I would take it back apart and clean up that rtv. It doesn't play nice with diesel fuel. There are many other products that are suitable. Permatex makes several. Quote KW T-680, POPEMOBILE Newmar X-Aire, VATICAN Lots of old motorcycles, Moto Guzzi Griso and Spyder F3 currently in the front row Young enough to play in the dirt as a retired farmer. contact me at rickeieio1@comcast.net Link to comment Share on other sites More sharing options...
Darryl&Rita Posted November 1, 2021 Report Share Posted November 1, 2021 It used to be a $20 part. Not sure how much it's gone up in the last 3 years. The O ring was under a dollar, and is indeed round in every direction. Ours had what looked like a hairline crack, when we were suffering from fuel issues. When in doubt, replace it. Quote I have been wrong before, I'll probably be wrong again. 2000 Kenworth T 2000 w/N-14 and 10 speed Gen1 Autoshift, deck built by Star Fabrication 2006 smart fourtwo cdi cabriolet 2007 32.5' Fleetwood QuantumPlease e-mail us here. Link to comment Share on other sites More sharing options...
ARGO Posted November 14, 2021 Author Report Share Posted November 14, 2021 Well, the Navy taught me "When in doubt, do without". Tks for all the advice, but the RTV was outside the square. Shouldn't really need anything at all, ring was good. Just made me feel better where outside of the ring plate touched the main housing. Did you get the ring from Volvo? I'm surprised they could 1) be bothered, and 2) didn't want to $ell you the whole thing Quote You'd have to see the movie to understand.......... Link to comment Share on other sites More sharing options...
Wrknrvr Posted November 14, 2021 Report Share Posted November 14, 2021 I found a o ring at the local hardware store. I did not have the correct diameter in my parts. Bought for a spare also. Glad you are operational again. Vern Quote Link to comment Share on other sites More sharing options...
ARGO Posted November 15, 2021 Author Report Share Posted November 15, 2021 You found a SQUARE "O type" ring? Buy a ticket! & thanks! Quote You'd have to see the movie to understand.......... Link to comment Share on other sites More sharing options...
noteven Posted November 15, 2021 Report Share Posted November 15, 2021 1 hour ago, ARGO said: You found a SQUARE "O type" ring? Buy a ticket! & thanks! supply chain link to square o rings Quote "Are we there yet?" asked no motorcycle rider, ever. Link to comment Share on other sites More sharing options...
rickeieio Posted November 15, 2021 Report Share Posted November 15, 2021 Disk brake calipers use what's commonly referred to as "square" o-rings, though they're really not quite square in cross section, but rather trapezoidal . This is what provides the spring, or "roll back" to release the pressure on the pads. Lots of square section orings in the hydraulic world too. Quote KW T-680, POPEMOBILE Newmar X-Aire, VATICAN Lots of old motorcycles, Moto Guzzi Griso and Spyder F3 currently in the front row Young enough to play in the dirt as a retired farmer. contact me at rickeieio1@comcast.net Link to comment Share on other sites More sharing options...
GeorgiaHybrid Posted November 15, 2021 Report Share Posted November 15, 2021 Not certain but I think he is talking about a round (in cross section) O ring (think 1/8" in Dia) that is square in shape (think 3"x3") Quote 2017 Kenworth T6802015 DRV 38RSSA Elite Suites2016 Smart Prime Link to comment Share on other sites More sharing options...
rpsinc Posted November 15, 2021 Report Share Posted November 15, 2021 Be cautions that you are sourcing seals or o-rings that are made of a material that will stand up to the liquid being used. Not all of them are able to work with say, brake fluid or diesel. When getting them at hardware stores, they may carry general purpose that could fail in use with certain fluids. Hate to do that job again! Quote Marcel Link to comment Share on other sites More sharing options...
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