kshays Posted April 25, 2023 Posted April 25, 2023 Does anyone know the dimensions for the OD on this particular tee? I thought about trying to find a brass tee to replace or would that be overkill? https://www.walmart.com/ip/Johnson-Evinrude-New-OEM-Plastic-Tee-Fitting-0313537/571272110 For a 86 Johnson 70hp. Thanks! Quote
Crappiebasser Posted April 25, 2023 Posted April 25, 2023 I’m pretty sure all the fuel lines are 5/32” so that would be the od. Quote
kshays Posted April 25, 2023 Author Posted April 25, 2023 7 minutes ago, Crappiebasser said: I’m pretty sure all the fuel lines are 5/32” so that would be the od. Thanks, have a good night! Quote
airshot Posted April 25, 2023 Posted April 25, 2023 On my Merc 40 hp outboard the fuel lines are 3/8" from the tank, marked right on the hose...inside the engine, connecting the carbs appears to be 5/16" as they are slightly smaller than tank hose. My last OMC 40 hp was a 5/16" fuel line from the tank, you may want to check those dimensions again. Quote
kshays Posted April 25, 2023 Author Posted April 25, 2023 33 minutes ago, airshot said: On my Merc 40 hp outboard the fuel lines are 3/8" from the tank, marked right on the hose...inside the engine, connecting the carbs appears to be 5/16" as they are slightly smaller than tank hose. My last OMC 40 hp was a 5/16" fuel line from the tank, you may want to check those dimensions again. I believe I am going to go a hose shop tomorrow and bring the hose with me. I do believe there are two different size hoses on mine. The ones that go to the actual carbs are a stiff hard plastic hose which I will probably replace with a better fuel hose and the main one is a little larger if I'm not mistaking. I just hate to buy them online and then get them and not be the correct size even though the listing is for that size. When I get them I will post back, ty Quote
airshot Posted April 26, 2023 Posted April 26, 2023 I hate to buy stuff on line when fit is critical...a couple extra dollars is well worth haveing the correct fit !! Quote
kshays Posted April 26, 2023 Author Posted April 26, 2023 Looks like the size coming from the carb to tees was 4mm. Took the hose with me and could not find any 5/32 barb tees. Found 1/8 and 3/16 and the 1/8 fit better than the 3/16 I thought. Putting a small zip tie on the hose should prevent it from slipping off, although it did fit "snug" anyway. Kevin Quote
airshot Posted April 26, 2023 Posted April 26, 2023 Are these fuel lines or vacuum lines? Can't say I have saw fuel lines that small on bigger outboards... Quote
kshays Posted April 27, 2023 Author Posted April 27, 2023 3 hours ago, airshot said: Are these fuel lines or vacuum lines? Can't say I have saw fuel lines that small on bigger outboards... LOL, man I would say you are right on that, did not even occur to me when I said fuel lines. These are the small lines going to the carbs. Here is a screenshot, part number 43 is the tee and the hose was 50, 45, 67, 44, but on my boat all was the same. This week has been busy to say the least, had a server go down which had multiple VM's housed. Kevin Quote
airshot Posted April 27, 2023 Posted April 27, 2023 Cant tell from your diagram but still sounds way to small for a fuel line. I would check your setup closely to see if they are really vacuum lines. Quote
kshays Posted April 27, 2023 Author Posted April 27, 2023 3 hours ago, airshot said: Cant tell from your diagram but still sounds way to small for a fuel line. I would check your setup closely to see if they are really vacuum lines. This is probably the oem size, although mine was 3/16". Replaced the plastic t-connectors with brass t-barb connectors last night and new hose. Verified no leaks and everything seems good so far. Johnson/Evinrude OEM 5/32" Fuel/Gas Primer/Recirculation Hose/Line 772571-1 ft | eBay Kevin Quote
airshot Posted April 28, 2023 Posted April 28, 2023 Primer recirculation hose, didn't think about that, my mind was in the main fuel line....never to old to learn! Quote
kshays Posted April 28, 2023 Author Posted April 28, 2023 17 hours ago, airshot said: Primer recirculation hose, didn't think about that, my mind was in the main fuel line....never to old to learn! Ahh, I've done the same thing before myself. Now I'm just trying to decide if I want to try and learn to set the timing or just take it to a marine shop here and have them do it. I would like to learn how though, much rather learn than having to depend on someone else for everything Kevin Quote
kshays Posted May 2, 2023 Author Posted May 2, 2023 Found one to buy, but it is not the most legible though. Kevin Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.