paulcho
New member
What size fuel line is used on a John Deere model GX345
Fuel line size
- Thread starter paulcho
- Start date
Texasmark
Elite Member
- Joined
- Apr 24, 2012
- Messages
- 3,646
- Location
- N. Texas
- Tractor
- Ford: '88 3910 Series II, '65 3000; '07 6530C Branson with FEL, 2020 LS MT225S. All Diesels
I find 5/16 to 20 hp and ⅜ over that on my small engines from different mfgrs, 15 to 26 hp air cooled singles and V twins. The fuel filters used in such machines are usually dual tipped inlets and outlets to fit both size fuel lines.
PILOON
Super Star Member
This one application where even 'bigger is better' (within reason).
e.g. for 1/4" --5/16 or even 3/8" would not hurt, space permitting.
e.g. for 1/4" --5/16 or even 3/8" would not hurt, space permitting.
If you consider the line not being able to seal at the pump and pick up etc. being a good thing, then I say go for it. There is absolutely nothing to accomplish with a larger ID fuel line on this rather than for those that want a little sport in their life by creating a fuel delivery issue or a fire... Top fuel GX345 maybe 
Thank You all, I used the 1/4 inch and that worked just fine. The reason I changed the fuel line and filter the engine was surging, I had this same problem in June 1917 problem was bolts on carburetor and intake manifold were loose, Now this time I removed the top of carburetor and blew the small inlets out with the air hose, there is a brass tube with very small pin holes in it they were blocked, My tractor is a Wheel Horse model 518-H engine Onan P218