Carb Fuel Pump

[bgd73]

I broke a pump when my DL turned 16 years old, unpainted, rusted,and making strange noise, it finally died. A problem the soob carbed had was full of bad advice and repairs back when they were popular (can I safely say "STUPIDITY"?).

My bro-n-law was a manager at a local parts store and handed me a rather large "master" fuel pump that had a rating of 3-7psi. What the heck, the price was right, especially for the fuel filter built in to the sucking side of the pump. It gave my old soob something it really deserved through the whole rpm range, including a bellow quite unique in throttle response. I tinkered with every setting for the carb via a manual, and the whole time it was the OEM fuel pump (correctly operating mind you).

I further analyzed "why" there was problems with oem via the subaru manual- 3.3 lbs is what the carb needs to function. subaru by thier own cheap means to get by had an exactly a 3lb pump. It made for slow float refills, and on and on and on with strange spongy throttle etc.

Now To get to my question. The master I was given just 2 years ago, doesn't exist anymore. I am assuming some kind of clearance sale allowed me to have it so cheaply. Anyway, at the same store I found this Bosch Pump.

 

http://www.partsamerica.com/ProductDetail.aspx?mfrcode=BOS&mfrpartnumber=69405&parttype=52&ptset=A

 

Once I saw the old Porsche 912, capable of two carbs and knowing it needs 5psi at a passive volume (if need be) utilize the same pump. I am convinced this is THE pump to cure the old soob. Anyone use it? A good way to tell a pump doesn't keep cramming in a one way direction with no passive calm is by other cars it would fit. By passive I mean the opposite of terms like "posi-flow" that never back down no matter what your foots placement on the throttle is.A passive gives it easy, and doesn't cram when it doesn't need to. Anyway, it is a delicate subject, a mistake can do bizarre things with a carb.I am hoping someone tried this pump on thier 3lb Hitachi soob.