Injectors: Grommets, Orings & Insulators - Miata Turbo Forum -Boost cars, acquire cats.

Welcome to   Members

General Miata Chat A place to talk about anything Miata

LinkBack Thread Tools
Old 07-09-2009, 11:21 PM   #1
Elite Member
Thread Starter
iTrader: (5)
m2cupcar's Avatar
Join Date: Jan 2005
Location: Atlanta
Posts: 6,934
Total Cats: 125
Default Injectors: Grommets, Orings & Insulators

I've been sorting through all the issues with my new chassis, of which leaking injectors was one. There were large brown fuel varnish stains around the manifold, so I pulled the injectors and went shopping for new seals. I could find the oring and grommets for the fuel rail side - but not the insulators (the things that look like tractor tires and insert into the manifold). Only Mazda has them. Odd for a 20 year old car.

Tonight I was looking at an old insulator and decided to tear one apart. What I found was that the insulator is two pieces - the hard ring with the ribs, and a soft interior piece that's (nearly?) identical to the grommet used on the fuel rail side of the injector. So I took a new grommet and inserted into the insulator's hard ring - perfect fit. I'm not sure if that's the intention or a coincidence, but nothing is mentioned in the 92 FSM about it. I'll try it out on the car and see if there's a problem, but I can't imagine there would be.

Injector with the "three" parts installed, and free:

and the insulator disassembled, hard ring below, soft "grommet" up top
m2cupcar is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
949 Racing Supermiata Crossflow Radiator (NA/NB fitment version) thumpetto007 General Miata Chat 0 08-30-2015 06:17 PM
Adaptronic Install Instructions for an NB Stein Adaptronic 84 12-12-2014 07:02 PM
INJECTORS: (3) Sets of 1.8 265cc Tan-tops / MX6 Turbo PnP 330cc UofACATS Miata parts for sale/trade 15 05-24-2007 04:38 PM
Clocking a 16g Turbo magnamx-5 DIY Turbo Discussion 9 04-12-2007 11:48 AM
FS: All the stuff to get you started Ben Miata parts for sale/trade 24 02-10-2007 12:24 PM

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 09:50 PM.