My 3GM30F has a fuel leak around the banjo fitting. Is there a trick to solving this problem? (I've read about certain crush washers that are involve.) Is it enough to just slightly tighten the bolt in the middle of the fitting?
fuel leak
- Thread starter richk
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One Use!
The banjo washers are one-use washers. If you try to tighten them, they will leak. The best bet is to replace them with new ones and set your washer initially where you want it. They are only 10-15 cents apiece, so buy a pack of the from the distributor and hang onto the spares..
The banjo washers are one-use washers. If you try to tighten them, they will leak. The best bet is to replace them with new ones and set your washer initially where you want it. They are only 10-15 cents apiece, so buy a pack of the from the distributor and hang onto the spares..
Well, it depends
where they're used, that is. After years of leaks and re-tightening, I stripped-out the small fuel filter fitting on the engine. Bummer. The problem with my engine was accessibility. Too hard to change those damn washers. And why they leak on the low pressure lines and don't leak on the high pressure injectors, will remain a mystery to me. Anyway, there had to be a better way. I called my local Yanmar parts supplier. They recommended Isuzu plastic washers and banjos. I replaced the Yanmar steel pipe too with rubber hose. End of leaks. I put the project in the forum. I'll be back with an edit as soon as I retrieve the link. Here ya go. Hope it works; http://www.sailboatowners.com/upload/display.tpl?folder=73257662603&fno=17 P.S. One more thing; It was unnecessary to replace the engine mounted fuel filter housing. My primary filter does all the crud removal. The rubber hoses used to replace the steel pipe meant that I could have connected directly to the fuel pump outlet and saved $85.00. Duh!
where they're used, that is. After years of leaks and re-tightening, I stripped-out the small fuel filter fitting on the engine. Bummer. The problem with my engine was accessibility. Too hard to change those damn washers. And why they leak on the low pressure lines and don't leak on the high pressure injectors, will remain a mystery to me. Anyway, there had to be a better way. I called my local Yanmar parts supplier. They recommended Isuzu plastic washers and banjos. I replaced the Yanmar steel pipe too with rubber hose. End of leaks. I put the project in the forum. I'll be back with an edit as soon as I retrieve the link. Here ya go. Hope it works; http://www.sailboatowners.com/upload/display.tpl?folder=73257662603&fno=17 P.S. One more thing; It was unnecessary to replace the engine mounted fuel filter housing. My primary filter does all the crud removal. The rubber hoses used to replace the steel pipe meant that I could have connected directly to the fuel pump outlet and saved $85.00. Duh!
Heat the washer ...
Obviously, buying new washers is the way to go, but if you re-heat it to a glowing red hot, and quench it in water, you will soften the copper washer, and have a better chance of having it seat well, and getting a good seal. Chris
Obviously, buying new washers is the way to go, but if you re-heat it to a glowing red hot, and quench it in water, you will soften the copper washer, and have a better chance of having it seat well, and getting a good seal. Chris
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