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Sudan, Juba
1 Level
763 Review
43 Karma

Review on πŸ”§ GMB 550-8040 Mechanical Fuel Pump: Boosting Efficiency and Reliability in Fuel Delivery by Marvin Perry

Revainrating 1 out of 5

Instant part failure

I recently purchased this mechanical fuel pump for my 1972 Datsun 240z. My plan was to install this while locating the necessary parts to restore my original Nikki pump. This part failed immediately. After replacing the original pump, I was getting almost no gas on my carbs. I opened up this pump to find the upper diaphragm and both internal valves were swollen, blistered and non-operational. I use premium gasoline with standard fuel stabilizer.

Pros
  • Easy to use
Cons
  • Volume