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Tillotson Short Alky .093 Inlet Seat
36A-38 Tillotson Short Alky Inlet Seat
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Tillotson Short Alky .093 Inlet Seat

Part Number: 36A-38
Online Price: $5.99
Tillotson 36A-38 Inlet Seat – Short Alky .093 for Methanol Carburetors
Availability: In Stock.

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Description

Tillotson 36A-38 Short Alky .093 Inlet Seat – Methanol Carburetor Fuel Seat


Precision Fuel Inlet Seat for High-Performance Methanol Engines

The Tillotson 36A-38 Short Alky Inlet Seat is a precision-engineered component used to regulate fuel flow into the high and low side circuits of performance carburetors. Featuring a .093" orifice and a short body length of 0.538", this seat is optimized for methanol-fueled (alky) applications and is widely used in high-performance 2-cycle and 4-cycle racing engines.


Known in the racing world as a "short alky seat," this inlet seat provides the ideal flow characteristics for methanol-fueled Tillotson carburetors, helping maintain optimal fuel delivery at both low and high RPMs. It's especially popular in piston port engines, small block OHV race engines, and many other methanol-based setups.

Important: Choosing the correct seat for your carburetor and fuel type is critical. An incorrect seat can lead to performance issues, poor throttle response, or even engine damage.


Product Specs:

  • Part Number: 36A-38
  • Orifice Size: .093"
  • Seat Length: 0.538" (short)
  • Fuel Compatibility: Methanol / Alcohol (Alky)
  • Material: High-grade brass
  • Application: Select 2-cycle and 4-cycle racing engines running methanol


Why Choose OEM Tillotson Seats?

Aftermarket inlet seats often suffer from poor sealing and imprecise machining — leading to flooding, especially at idle or low speed. Using a genuine Tillotson seat ensures proper sealing, accurate pop-off pressure, and consistent fuel metering.

For best results, always use a pop-off pressure gauge during assembly to verify that the needle and seat are functioning correctly and not leaking.


Compatibility Reminder:

This short .093" seat is designed for methanol applications. It is not recommended for gas-fueled rotary, reed valve, or large displacement engines. Always verify your carburetor model and engine setup before ordering.

FAQ

Q1: What does the Tillotson 36A-38 inlet seat do?

A: It controls fuel flow into the carburetor’s high and low side circuits and is specifically tuned for methanol fuel systems.


Q2: Why is it called a “short alky seat”?

A: Because of its short 0.538" length and common use in alcohol (alky) fuel applications, especially in racing engines requiring higher flow rates.


Q3: What is the orifice size of the 36A-38 seat?

A: The seat features a .093-inch fuel inlet orifice, ideal for methanol carburetor setups.


Q4: Can I use this seat in gas-fueled engines?

A: This seat is not recommended for gas setups, especially on smaller displacement engines. Use a seat with a smaller orifice for gasoline applications.


Q5: Why is it important to use an OEM inlet seat?

A: OEM Tillotson seats provide reliable sealing and accurate pop-off pressure. Aftermarket versions often leak or cause flooding at low speed.

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