Archive for July, 2014

Lonely 900

In the ODV Garage

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SAAB Fuel Pump Refresher

It’s a long story, probably one best told over beer, but to make it short: never let anyone borrow your car.

This is generally a rule of mine since the GT got injured, but this isn’t my fault because Ryan technically stole it. Anyway while it was in his possession the drivers window motor burnt out, the alternator went flaky, and the fuel pump ceased to function.

One AAA tow later it was back at the ranch being diagnosed.

One AAA tow later it was back at the ranch being diagnosed.

At least the pump is easy to get to. Big hatch=pump. small hatch=gauge sender.

At least the pump is easy to get to. Big hatch=pump. small hatch=gauge sender. Note trunk rust work in progress.

Lid and clamp screw access plug off.

Lid and clamp screw access plug off.

The doctor is in.

The doctor is in.

With a fresh battery the car started right up but the fuel pump was really noisy. At first the charging seemed fine but then the battery light started to come on. The next day after everything cooled off and more gas in the talk the noise was considerably less but it still didn’t sound healthy and it was really hot. A fluctuating whirr with occasional clicks, here amplified with my mechanics’ stethoscope. Time to order parts.

That's not it!

That’s not it!

I ordered an alternator, alternator bushing kit, main pump, pre-pump, and strainer from Eeuroparts. The universal high-pressure pump they sent, a Walbro GSL392, came with no documentation. I poked around and determined that it would have to be patched in outside the tank. Some material I read indicated that while it was a great high-performance pump for many applications, it wouldn’t be up for the high base pressure of a K-Jet. Eeuroparts is great for returns so back it went along with the strainer (which was for the stock main pump). More reading reminded me of how crucial the pre-pump is in this setup so I decided to install just that and see how it went.

Main pump and pre-pump live happily together under a toadstool.

Main pump and pre-pump live happily together under a toadstool.

It’s actually a clever setup- the pre-pump (the shiny silver cylinder) feeds a steady stream of fuel into the black plastic reservoir containing the main pump. Two small screws and the pre-pump comes off.

Uh-oh. Dropped a screw into a full tank of gas. Magnet-on-a-stick to the rescue.

Uh-oh. Dropped a screw into a full tank of gas. Magnet-on-a-stick to the rescue.

Rain, rain, go away.

Rain, rain, go away.

It went back together quickly and the fluctuation and clicking are gone. Just a nice, steady whirr and cool. A very successful day at the ODV garage. I even got my new sunroof in:

Sweden! Or, "how to be That Guy without driving around with your shirt off."

Sweden! Or, “how to be That Guy without driving around with your shirt off.”

I wouldn’t normally go for something like this but the original sunroof cover was damaged. My friend Mike got me one from Conn-tech, a local SAAB specialist, as a gift. Thanks Mike! It was rose quartz metallic so…

Two spray bombs and five coats of clear. Tasteless.

Two spray bombs and five coats of clear. Tasteless.

Barely noticeable

Barely noticeable

 

 

 

 

 

 

 

 

 

 

 

 

July Panorama of ODV Garage

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Photo by Conaty.