Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×

Thread Tools Search this Thread Display Modes
Old 11-17-2018, 10:07 AM   #1
1 Rivet Member
Constantin's Avatar
1986 34.5' Airstream 345
Clamensane , PACA
Join Date: May 2018
Posts: 19
Blog Entries: 1
Smile Copper plugs

Hi everybody !

I would like to change the copper plugs on my 345 from 1985, i would like to take iridium one but there is three choice for that on rock auto, anyone know which one i have to take ?
Gap .044
Gap .040
Gap 0.045
Constantin is offline   Reply With Quote
Old 11-17-2018, 10:35 AM   #2
2 Rivet Member

2006 28' Safari
1948 22' Liner
1989 34.5' Airstream 345
Jamul , California
Join Date: Sep 2006
Posts: 54
Images: 17
If you have the 454, the P30 chassis manual calls out a gap of .045 for part number R44t.

I would buy the correct cross referenced plug and gap to the specification as required. I would also check the gap on the new plugs if you buy the .045's, I don't trust them.

If i am wrong the group here will help me get it right, .
Lychgate is offline   Reply With Quote
Old 11-17-2018, 08:40 PM   #3
Dazed and Confused
Isuzusweet's Avatar
Currently Looking...
1983 31' Airstream310
Hillsburgh , Ontario
Join Date: Sep 2012
Posts: 3,805
IMHO You're just paying a lot more for a sparkplug that will give you no discernible improvement in combustion.

Sidekick Tony
Per Mare, Per Terram and may all your campaigns be successful.

ďItís a recession when your neighbor loses his job; itís a depression when you lose your own.Ē "Harry S Truman"
Isuzusweet is offline   Reply With Quote
Old 11-18-2018, 05:48 AM   #4
Rivet Master
Waipio Rim's Avatar
1984 31' Airstream310
Honokaa , Hawaii
Join Date: Jun 2010
Posts: 942
Originally Posted by Isuzusweet View Post
IMHO You're just paying a lot more for a sparkplug that will give you no discernible improvement in combustion.


Sidekick Tony

I agree. I believe that the coach came with AC Delco plugs when new, thatís what I put i our 345 last summer.
Waipio Rim is offline   Reply With Quote
Old 11-19-2018, 04:24 AM   #5
Rivet Master
Boom Sounds's Avatar
1991 25' Airstream 250
Oxford , Oxfordshire
Join Date: Jun 2007
Posts: 1,133
Images: 5
If you look on the side of he air intake, you should be able to see a sticker which sets out the stock set up.
Boom Sounds is offline   Reply With Quote
Old 12-09-2018, 07:54 AM   #6
4 Rivet Member
1987 34.5' Airstream 345
Menomonee Falls , Wisconsin
Join Date: Jul 2010
Posts: 418
Years ago, I tried all those different plugs. I never found any real change. I think those plugs are more for a race application. You know, where a 10th of a second means winning or losing a race. I don't know, it's ones own preference I guess. I may try those gapless ones again. I think Bosch made them. Maybe with today's fuels, they may be the way to go.
I put headers on my engine. Make sure if you do, or have headers, you get spark plug wires that are made for headers. I tried those boots that slip over the wires to protect them from heat. The one that was closet to the header burnt. I only put on 180 miles on the coach. I would have burnt a wire off, had we been able to go further.
Anyway, we re waiting on bearings for the engine. Everything else is ready to go. Total cost of rebuild should be about 1800.00 . Not to bad. Not going to be fun laying on my 60 year old back in 20 degree weather. But the dude abides. DJ
davejay is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
How Can it Be? 2 Plugs work, 2 Plugs dont Aluminumb Electrical - Systems, Generators, Batteries & Solar 10 07-27-2009 07:44 PM
Tidee Products Plugs in aisle? Chaplain Kent General Motorhome Topics 5 04-19-2005 07:50 AM
Where can I buy 30 amp plugs? Ultradog Electrical - Systems, Generators, Batteries & Solar 8 10-14-2003 05:12 PM
Window drain plugs AccessMaster Airstream Motorhome Forums 10 06-20-2003 11:37 PM
Hitch light plugs ALANSD Brakes & Brake Controllers 4 10-12-2002 09:04 PM

Featured Campgrounds

Reviews provided by


This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.

All times are GMT -6. The time now is 06:06 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.