91 cummins fuel water seperator drain

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DonStaples - 01 Jan 2007 22:48 GMT

Hi guys,
The drain on the bottom of my fuel filter drips constantly. Can this be
fixed or do I need a new part? If I need a new part what is it called and
where can I get it? Thanks in advance........

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Joseph Myers - 02 Jan 2007 00:01 GMT

>Hi guys,
>The drain on the bottom of my fuel filter drips constantly. Can this be
>fixed or do I need a new part? If I need a new part what is it called and
>where can I get it? Thanks in advance........

If it's like my 89, maybe you just need to tighten the valve up a
little, it seals with an "O" ring.

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DonStaples - 03 Jan 2007 03:08 GMT

It is as tight as it will go and I just replaced the filter and o-ring as I
originally thought the filter was leaking. The fuel appears to be leaking
directly from the drain.

>>Hi guys,
>>The drain on the bottom of my fuel filter drips constantly. Can this be
[quoted text clipped - 3 lines]
> If it's like my 89, maybe you just need to tighten the valve up a
> little, it seals with an "O" ring.

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Joseph Myers - 03 Jan 2007 04:32 GMT

>It is as tight as it will go and I just replaced the filter and o-ring as I
>originally thought the filter was leaking. The fuel appears to be leaking
[quoted text clipped - 7 lines]
>> If it's like my 89, maybe you just need to tighten the valve up a
>> little, it seals with an "O" ring.

You say "appears", I would put a length of clear tubing on the drain
to see if it actually is coming out of the valve. If it is then there
must be something caught in the seat, takeit off and clean and inspect
it. I'm thinking maybe it is leaking at the threads and maybe the "O"
ring is cut or pinched. In any case, the whole assembly is available
at Cummins.

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