Diesel In-Line Fuel Filter

[Compass790]

Originally Posted by Homer Shannon

It would be nice if manufactures would state these reason so we could be a bit more educated about our choices. I've had a squeeze bulb in the fuel line for at least 15 years and it seems fine - though I think I'm going to give it a good check up! The fuel filter has been installed since June and everything has worked perfectly this year. It's hard to argue with long term success, but knowing is better.

I installed the squeeze bulb in a parallel circuit with isolating valves as read the warnings on CF. 6 years later it seems as good as new. It's been a godsend. If I did the fuel plumbing over again I'd just use a 3-5 psi 12v fuel pump, then you have a backup for the mechanical lift pump.
We use a primer bulb to pre-prime the engine oil pump/main bearings before starting the motor & that seems to be lasting ok as well
They were el cheapo bulbs off Aliexpress too.

[Mr B]

My old filters fell to bits, So I bought two of these filter units online from China off Fleabay.com, $24-00 Each, Delivered,
They are supposed to be 10 Microns, But who knows,
They are a copy of a Racor one,
They do work and keep my fuel clean,

[Compass790]

Originally Posted by Mr B

My old filters fell to bits, So I bought two of these filter units online from China off Fleabay.com, $24-00 Each, Delivered,
They are supposed to be 10 Microns, But who knows,
They are a copy of a Racor one,
They do work and keep my fuel clean,

You can get 10 micron ones to fit anyway I'm pretty sure. He just needs to get that number off the cartridge which is a copy number probly anyway.
Good you attached a pic.

[Mr B]

Found a few more Piccys,

[wsmurdoch]

The Yanmar specification for the fuel filter on my 3HM35F is listed in the Service Manual as 10 to 15 microns. Your service manual may list something different.