Brownells - Rem 11-87/1100 Barrel Seal & Piston Seal Assem.

Published on July 2, 2008
Duration: 3:19

This guide details the process for replacing the barrel seal and piston seal assembly on Remington 1100 and 11-87 shotguns, as demonstrated by Tim Dillon from Brownells. Proper installation of these seals is crucial for preventing gas leakage and ensuring reliable cycling. The video emphasizes cleaning carbon buildup and protecting the new seals during installation.

Quick Summary

To replace the barrel and piston seals on a Remington 1100/11-87, first ensure the firearm is safe and unloaded. Disassemble the shotgun to access the magazine tube, remove old seals, and thoroughly clean any carbon buildup. Install the new piston seal with the flat side facing the receiver, and protect the new Teflon O-ring barrel seal with masking tape on the threads during installation. Reassemble and perform a function check.

Chapters

  1. 00:00Introduction to Cycling Issues
  2. 00:58Disassembly and Safety
  3. 01:24Seal Removal and Cleaning
  4. 01:48Installing New Seals
  5. 02:31Reassembly and Function Check

Frequently Asked Questions

What causes poor cycling in a Remington 1100 or 11-87 shotgun?

Poor cycling in a Remington 1100 or 11-87 is often caused by worn barrel seals (synthetic Teflon O-rings) or piston seal assemblies. These components are vital for preventing gas leakage, ensuring adequate pressure to operate the action.

How do I properly install the piston seal assembly on a Remington 1100/11-87?

When installing the piston seal assembly, it is critical that the flat side of the large ring faces the receiver. This orientation ensures correct function within the gas system.

What is the purpose of the barrel seal on a Remington 1100/11-87?

The barrel seal, typically a synthetic Teflon O-ring, prevents gas from escaping around the barrel and magazine tube. This maintains the necessary pressure within the gas system to reliably cycle the shotgun's action.

What common mistake should be avoided when installing new seals on a Remington 1100/11-87?

A common mistake is damaging the new Teflon O-ring barrel seal when sliding it over the magazine tube threads. Using masking tape to cover the threads before installation prevents this damage.

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