Diesel leak - Westerbeke 70

[Calypso52]

Diesel appears to be leaking where the incoming metal line attaches to the injector pump. This line appears to be attached to the pump with a hex head bolt. Could this be as simple as backing out the bolt and replacing a washer under that connection point? Some kind of banjo crush washer that has failed for some reason after 2,300 hours?

I am wary of messing with anything on the injector pump obviously. Engine run perfectly otherwise. Many thanks.

[DougR]

It may just be a matter of tightening the banjo bolt a bit..... But it wouldn't hurt to replace both of the washers. There is one immediately under the head of the banjo bolt, and another between the injection pump body and the fuel line.

Remove the banjo bolt and both washers. Take the bolt and the washers and visit a local diesel injection pump shop and get a couple or three or four replacements for each washer. They may or may not be the same on both sides of the fuel line.

Replace the old with the new and snug things up. You may have to prime up the injection pump a bit, but things will probably crank up fine.

Put the extra washers in your " glory bag" and you're set for next time.

[Wotname]

What DougR said plus 1!

Usually the banjo washers are copper but I occasionally see aluminium ones.

If you replace them and the old ones are copper (and look reasonable), keep them. You can anneal (soften) them quite easily. Heat them up to a dull red colour and let them cool (or quench in water). Copper doesn't care how fast it is cooled for annealing purposes although other metals do.

Your gas stove burner is hot enough for this work.

[Wotname]

If replacing the banjo washers doesn't work, you may have a fine crack in the line or banjo terminal.