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Posted

FYI,

I have just replaced my leaking Dukes boost pump with the new Weldon one. It was pretty easy swap. I did it myself and my mechanic supervised and sign it off.

The original Dukes was 1499-00-19A on my 1977 M20J and the direct swap is Weldon 18020-A. First I have ordered the Weldon A8186-A as it is listed under Mooney within my serial number range but it was wrong one. I paid $ 793 at Aircraft Spruce which is pretty good deal compare to the new or even overhauled Dukes.

I have read some good reviews on Weldon and it is continuous operation pump. And it looks pretty and shiny.

Posted

I know weldon sells one but not one that's a direct replacement AFAIK.  I'd love to be wrong, but I couldn't find one on the Weldon website.

Yep... I recently had to go the overhaul route. :(

Posted

The original Dukes was 1499-00-19A on my 1977 M20J and the direct swap is Weldon 18020-A. First I have ordered the Weldon A8186-A as it is listed under Mooney within my serial number range but it was wrong one. I paid $ 793 at Aircraft Spruce which is pretty good deal compare to the new or even overhauled Dukes.

Their document is confusing, they have the J listed in their multiple times,  if you have an OEM pump you need 8163, if Dukes then 18020, at least that's how I read it

Posted

Their document is confusing, they have the J listed in their multiple times,  if you have an OEM pump you need 8163, if Dukes then 18020, at least that's how I read it

That sounds right.

Posted

If you can, sell the dukes core to someone who wants to rebuild it.  That's what I did when my dukes started giving me issues in my former F model back in 2010.

 

-Seth

Posted

If you can, sell the dukes core to someone who wants to rebuild it.  That's what I did when my dukes started giving me issues in my former F model back in 2010.

 

-Seth

Thanks for the idea.

Posted

Thanks for the PIREP, I hope my pump has lots of life left, but if it does fail this seems the way to go. I've also got a '77 M20J.

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