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Posted

Finally, the weather in NW Indiana was tolerable for a spin around the patch. After a week of cold frozen stuff, it was clear and mild. Get to the hanger and find a wet spot on the floor under the engine. The edges OD the spot are blue. There is a drip every few seconds. First thought was the sump was weeping, but it was dripping from the outlet in front of the drain. Got the mechanic and low and behold, it's the boost pump. So, it looks like I'm in the market for a replacement.

Anyone know where to get one of these without sacrificing a mortgage payment? This is for a 1977 J.

Thanks for your answers (I hope!)

Posted

On a 77'J you also can install a new Weldon 8163A  pump (check out Spruce). Probably around 1amu.

It is probably the model you already have on

The 8163A is on the Mooney TCDS, so a simple R&R and log book entry 

Posted

I've seen an O do the same trick...

Is the boost pump a diaphragm pump? Or what allows the leak to be so well contained that it leaks through a convenient fitting to the outside world?

Best regards,

-a-

Posted

On a 77'J you also can install a new Weldon 8163A  pump (check out Spruce). Probably around 1amu.

It is probably the model you already have on

The 8163A is on the Mooney TCDS, so a simple R&R and log book entry 

We have a '78J and from the looks of the parts manual I thought we could use a Weldon pump too.  Since we could get a 'serviceable' unit cheaply we bought it.  Went to put it in and found our plane had a Dukes and the Weldon would not fit in the same space.  Apparently you need a modification kit.  We had to return the Weldon and ended up having our Dukes overhauled.  If you decide not to overhaul your pump but buy an already overhauled pump instead, look at your pump first.  For simplicity I'd recommend you get the same pump if you can.  By far the cheapest option is to have your pump overhauled if you can wait for the turn around.

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Posted

We have a '78J and from the looks of the parts manual I thought we could use a Weldon pump too.  Since we could get a 'serviceable' unit cheaply we bought it.  Went to put it in and found our plane had a Dukes and the Weldon would not fit in the same space.  Apparently you need a modification kit.  We had to return the Weldon and ended up having our Dukes overhauled.  If you decide not to overhaul your pump but buy an already overhauled pump instead, look at your pump first.  For simplicity I'd recommend you get the same pump if you can.  By far the cheapest option is to have your pump overhauled if you can wait for the turn around.

agreed that the first step should always to look at what you have. usually easier and cheaper if you have that option

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