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EC Carburetor Service Dowel Pin
718 EC Carburetor Service Dowel Pin
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EC Carburetor Service Dowel Pin

Part Number: 718-D
Online Price: $1.00
EC Carburetor Service Dowel Pin – 718-D for Tillotson Carbs
Availability: In Stock.

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Description

EC Carburetor Service Dowel Pin – .125" x 2" for Tillotson Carbs (718-D)


The EC 718-D Carburetor Service Dowel Pin is a precision tool used to properly align the copper inlet seat gasket in older Tillotson diaphragm carburetors.


Some vintage or non-self-aligning Tillotson models lack internal seat centering features. This .125" x 2" dowel pin solves that issue by working in tandem with the EC 36A-38M Machined Inlet Seat, allowing for exact positioning of the copper gasket during reassembly.


Key Features:

  • Precision Alignment Tool for older Tillotson WA/WB diaphragm carburetors
  • Ensures correct positioning of the copper inlet seat gasket
  • Designed for use with the EC 36A-38M Machined (non-functional) Inlet Seat
  • Prevents misalignment that can cause fuel leaks, poor metering, or flooding
  • CNC-machined to exact specifications – .125" diameter x 2" length


Recommended Use:

Insert the dowel pin through the 36A-38M machined inlet seat to align the copper gasket accurately during assembly. Once aligned, remove the pin and seat tool before installing the functional fuel inlet seat.


The EC 718-D Dowel Pin is essential for anyone restoring or rebuilding older Tillotson carburetors. Don't risk misalignment—use the proper tool for professional results.

FAQ

What is the EC 718-D dowel pin used for?

It’s a precision tool for aligning the copper inlet seat gasket in older Tillotson diaphragm carburetors that do not self-center. It ensures the seat is properly aligned during reassembly.


Which carburetors require this tool?

The EC 718-D is used in older Tillotson WA, WB, and similar diaphragm carburetors that lack self-aligning inlet seat designs.


Do I need any other tool to use the 718-D dowel pin?

Yes. It is used in conjunction with the EC 36A-38M Machined Inlet Seat, which is not functional but serves as a guide during the alignment process.


Can this pin be used in a running carburetor?

No. It is strictly a service tool for use during rebuilds. Do not leave it installed in a functioning carburetor.


Why is proper seat alignment important?

Incorrect alignment of the copper seat gasket can lead to fuel leakage, poor metering, or flooding, which severely affects engine performance and reliability.

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