Re: How to properly clean out fuel tanks
Suggestion, but at your own risk:
Pull the fuel tank dip tubes and remove the screens.
While I won't publically recommend removing the Anti-Siphon valves, note that these can easily become restricted when yuckies are present.
The thread size/pitch is standard to that of a brass barbed fitting.
The Anti-Siphon valves are there in part to protect against a fuel line/hose failure that may cause a fuel siphon.
New hoses would certainly take some responsibility away from an Anti-Siphon valves.
(note how I skirtted away from that one! )
Install a pair of Parker RACOR true water separating fuel filters...... It doesn't get much better than RACOR.
Depending on whether or not you have seen some fairly large yuckies floating in the fuel, you may need to pull the 90* fittings out and clean them occasionally.
You may even replace the 90's with a more smooth, less restrictive, longer "sweep" 90.
Keep a close eye on the filters.
Educate yourself on some of the fuel additive products.
Anything to avoid removing the fuel tanks since you have described that this would require a lot of work.
In time, the problem will eventually correct itself, and you can re-install _________________________.
Again.... just a suggestion.
Last edited by RicardoMarine; 04-19-2011 at 01:18 PM.
Rick ... aka Ricardo..... AQ series Volvo Penta repair
28' SDN F/B w/ twin Volvo Penta 5.7L DP's
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I would prefer email .... jenery (at) aol.com