External Fuel Pumps - how long do the commutator brushes last on yours???

[289FIA_Cobra]

OK, back in 2005, I purchased a Mallory 140 series pump. At somewhere around 10,000 miles on my odo, one bushing wore down.
I bought a replacement but I also bought a second pair thinking this might happen again.

I 'just' got back from the "Snakes To The Lake" drive over the weekend (Lake Tahoe) and this morning, I started up the car, but didn't notice the lack of the fuel pump noise... I got pretty far, about 2 miles, before it puttered to a stop. I'm currently at about 19,800 miles now.

So the questions:

1) How long are the brushes suppose to last?
2) Is Holley and Mallory about the same?
3) Is Aeromotive any better?
4) Any others having success with other external pumps?

I will be inspecting both the canister and inline filters this week; perhaps they are starting to clog up a little and causing the pump to labor more???

Sorry for these questions but I'm at work and have little time to "search" but hopefully people are bored and willing to chime in. :D

[289FIA_Cobra]

I talked to someone at Goodies Speed shop and while he offered no answer as to "how long", variables that do affect the life of the pump in general, do include things like clogged filters, but also heat.
In my initial build, the pump was located between the battery box below the trunk, and the IRS pumpkin. While I'm sure it got 'some' air flow, it's probably not the greatest either but I wasn't thinking about heat at the time.

When I did relocate the pump, it went behind the rear splash panel of the rear tire; again, no direct airflow but I'm sure there is 'some' air.

But it got me thinking, it probably wouldn't hurt to have an air duct pointed at the pump to ensure heat isn't part of the issue.

[mikiec]

My Holley Blue is sitting on the frame just in front of the fuel tank. So far no issues. I have a fuel filter before and after the pump. Living in Phoenx I get plenty of heat there. 12 years and going. Of course it will die now.

Mike