Author Topic: Holley 4053 DZ Carb accelerator pump diaphram  (Read 4178 times)

olympic69

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Holley 4053 DZ Carb accelerator pump diaphram
« on: January 14, 2010, 04:13:42 AM »
I need to replace the accelerator diaphram on my Carb DZ 4150/ 4053.

Summit shows two- a 30 cc and 50 cc- anyone know which is correct OEM Spec?

Thanks!
Rob
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Stingr69

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Re: Holley 4053 DZ Carb accelerator pump diaphram
« Reply #1 on: January 14, 2010, 02:53:35 PM »
30cc is the one. The 50cc was originaly OEM spec'd for a REO Commercial Chassis (Firetruck) but it is also used on aftermarket applications where racers need a huge pump shot. I doubt it has any OEM car applications.

-Mark.

olympic69

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Re: Holley 4053 DZ Carb accelerator pump diaphram
« Reply #2 on: January 16, 2010, 04:38:50 PM »
Ah yes, the REO Speedwagon...thanks for the reply- I spent some time on the back of an Ahrens-Fox gasoline fire truck!

30cc is the one. The 50cc was originaly OEM spec'd for a REO Commercial Chassis (Firetruck) but it is also used on aftermarket applications where racers need a huge pump shot. I doubt it has any OEM car applications.

-Mark.
Rob
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"Its all crazy..."

L78 steve

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Re: Holley 4053 DZ Carb accelerator pump diaphram
« Reply #3 on: February 10, 2010, 05:19:16 PM »
The 50cc pumps may come in contact with the manifold unless a spacer is used.
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