Thread: FE 390 Dowl Pin Dimensions

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Not as easy as it looks (BTW Hi Glenn). The dowel length will be different depending on whether you have a 1 or 2 piece fuel pump eccentric. The 2 piece has a little tang that pokes into the dowel hole - and a shorter dowel.

Originally Posted by Barry_R

Not as easy as it looks (BTW Hi Glenn). The dowel length will be different depending on whether you have a 1 or 2 piece fuel pump eccentric. The 2 piece has a little tang that pokes into the dowel hole - and a shorter dowel.

Hi Barry nice to see you here.

Originally Posted by Barry_R

Not as easy as it looks (BTW Hi Glenn). The dowel length will be different depending on whether you have a 1 or 2 piece fuel pump eccentric. The 2 piece has a little tang that pokes into the dowel hole - and a shorter dowel.

Hello Glenn, and thank you for clarifying that there are two types of
eccentric.

That makes sense of the picture I saw on the Dura-Bond site. However
with the cam I have, 1.5" would put the dowel pin at the exterior wall of
the cam sprocket. So there would be no where for the pump eccentric
little tang, to fit into. That said, the dowel could always be ground down
( much easier than extending it........... )

Interesting how such a little part can slow down a job.......

I decided to go the electric fuel pump route and omitted the eccentric.
Lots of loctite on the bolt should see it staying there. I did read on the
Dove site that even when not using a mechanical pump that the eccentric
should be fitted or the bolt will come loose. This did not make sense to me,
or maybe I do not understand their reasoning.

I fitted a washer the same thickness as the eccentric and used some strong
loctite and torqued the bolt to its spec.