In-line fuel filter Volvo penta 430 1991

[orion208]

I just found out this engine has an in-line fuel filter that has not been changed in years.I am having trouble loosening the small nut on the fuel line from the housing holding the filter.I am using 2 wrenches but the smaller nut on the line wont budge and I dont want to break anything.Any ideas on how to un stick it.Thanks.P.s.The engine is red if that helps.

[novicetech]

Make sure you are using line wrenches and if there is any corrosion, hose it down with PB-Blaster, let it soak overnight.

[Don S]

The only fuel filter an a 430B is the one in the lower right of the picture below and the filter is a spin on. Could you take a picture of your fuel filter?

[orion208]

I did the spin on filter and also found a filter in the gas line going to the carb it's about an inch long and looked like it was there for a bit.Thanks for the diagram Don.