Air bubbles in fuel supply line
Who here has seen a new fuel filter be the source of air bubbles? I'm not talking about when you first install it because I fill the filter up with DM3 ATF to keep the prime. I'm talking about like a week later. Still has a steady stream of air bubbles. I changed the filter again with another Bosch Filter and then bubbles stopped. How could Bosch make a bad filter?
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Where do tyou find the Bosch fuel filters?
I can't find them locally, so I thought I'd order a few. thanks |
I have had happen to me on my 244 about 12 years ago. It was the sealing gasket that had a imperfection. It went many months before it showed up.
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Kevin, you are sure that you are getting the small inner O-ring off when you remove the old filter?
If that O-ring accidentally sticks on there, then when you go to install the new filter it is hard to get the outer gasket to seat all the way on the filter head and that can lead to air leakage into the filter when running... good idea to always check by feeling in there with a sterilized clean hand when you have the filter off. Once I worked on a Volvo that had 2 old crusty O-rings stuck up there! Does not help it run right... |
I am positive there isn't an old o-ring on there. I am very OCD about it.
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If I search by part number I get this http://www.gowestyautoparts.com/OEM/...=1+457+434+106 Those look right but are more expensive (not too bad though). Just want to make sure I get the right thing. Thanks |
Finding parts for diesel Volvos can be tricky. Even though there is nothing too mysterious or complicated about when they were sold here and which models were available (240/260 1980-1985; 760 1983-85; 740 1985-86), many parts suppliers do not have accurate catalog listings so looking parts up by application is not always reliable... some years they show no diesel parts at all, while others are only partially there.
For whatever reason, I have found that 1984 seems to be the best year to look up for finding parts by application, both for the 200 and 700 series. Maybe because it is right in the middle of the production range... I don't know. Whenever I need parts, I always look up a 1984 760 Turbodiesel, or for 240 parts, I use a 1984 244 Diesel. Regardless all the parts are the same for all model years of 200 Diesel or 700 Diesel, so you looking up an '84 244 for your '80 245, or me looking up an '84 764 for my '86 745, will nonetheless lead us to the correct respective parts. The bottom fuel filter you found is the correct one. The first two are for gasoline Volvos. The body of the filters actually look quite similar in that picture, but in reality the diesel one is a spin-on type, while the part of the gasser filter that you cannot see looks just like the end that you can -- it has high-pressure banjo fittings on both sides. When all else fails, Bosch, VW or Volvo part numbers are always a safe bet. And it is worth keeping in mind that for many generic items -- i.e. injector bodies, glow plugs, camshaft seals, fuel filters, D24 oil filters (D24T's are different), valve adjustment shims, etc, Volvo Diesels are identical to more common models from VW and Audi throughout the '70s, '80s, and early '90s... so even if you cannot find the part under a Volvo listing, chances are it is still available, just in a different part of the catalog. George |
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