Yanmar fuel filter tightening.

[Colin]

I have a Yanmar 2gmt in my Hunter 335 and find the fule filter hard to get tight enough to seal properly. Is there a special tool avalable or am I on my own?

 

[Mark Miller]

Fuel Filter tight

In response to your fuel filter being tight enough. You might try a trick similar to oil filters. I coat the o-rings with fuel well before installing the filter. This gives them a chance to soak up the fuel and provide a little better seal. You shouldn't have to tighten the filter any more than hand tight and I don't recommend do so anyway. This can make it very difficult to remove at next change. Give that a try and let me know.Hope this helps.

 

[Rich Wallace]

Proceed With Caution

The fuel filter on the side of the 2GM / 3GM series is a special treat. You will find if the o-ring is in place properly that it does not have to be very tight to stop the leak. If you continue tightening, the ring will split between the threads and the lip that holds the bowl. Then, it won't stop leaking no matter what you do.

 

[Vic]

That ring is fragile ....

I never changed nor touched that filter for seven years ... and it still cracked at just the wrongest time. 10 years later the replacement is just as good as new ... and I haven't touched it or the filter either.Vic

 

[Colin]

Thanks guys.

I removed the filter today to try to geta better purchase on it. In doing so I found that the banjo fittings were loose, so I think that was the cause of my leak rather than the fuel filter housing.

 

[Steve O.]

bleeder screw?

Are you sure its the o-ring that's leaking? The bleeder screws are notorious for leaking after opening and closing a few times. Replace the little washer and keep a spare on board.