Fuel injector port diameter size in lower intake?? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


General GM Chat When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made. Chat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.

Reply
 
 
 
Thread Tools Search this Thread
Old 05-27-2004, 10:21 AM   #1
Junior Member
Thread Starter
 
Join Date: Mar 2003
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
vital49 is on a distinguished road
Default Fuel injector port diameter size in lower intake??

What is the diameter of those ports?

I started the upper intake last night and lower gaskets and now have the lower intake freed and beginning the cleaning process. I need to clean the injector ports with a snug-sized brush, but forgot to get the diameter before I called it a night last night! I was hoping to buy the brush on lunch today...just need to know the size!
vital49 is offline   Reply With Quote
Old 05-27-2004, 01:15 PM   #2
Senior Member
True Car Nut
 
Join Date: Jun 2003
Location: Purgatory
Posts: 6,313
Thanks: 0
Thanked 0 Times in 0 Posts
PontiacDad is on a distinguished road
Default

3/8 npt thread is close. sorry I dont have the exact size
PontiacDad is offline   Reply With Quote
Old 05-27-2004, 01:21 PM   #3
Junior Member
Thread Starter
 
Join Date: Mar 2003
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
vital49 is on a distinguished road
Default

Thank you....I was thinking 5/8 for some reason, but 3/8 sounds about right.

vital49 is offline   Reply With Quote
Old 05-27-2004, 02:02 PM   #4
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Quote:
Originally Posted by PontiacDad
3/8 npt thread is close. sorry I dont have the exact size
The ports aren't threaded. I assume this is just a size reference?
willwren is offline   Reply With Quote
Old 05-27-2004, 03:45 PM   #5
Junior Member
Thread Starter
 
Join Date: Mar 2003
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
vital49 is on a distinguished road
Default

Yes it was. I just needed to know what size brushes to buy.
vital49 is offline   Reply With Quote
Old 05-27-2004, 05:34 PM   #6
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Have you ever seen the little batter brushes for cleaning the terminals? That'* about the right size. Those brushes are usually a tapered cone shape.
willwren is offline   Reply With Quote
Old 05-28-2004, 08:51 AM   #7
Junior Member
Thread Starter
 
Join Date: Mar 2003
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
vital49 is on a distinguished road
Default

I bought a 5/8" tappered cone shape brush and used it in my drill and went at it (gently so I didn't remove any aluminum) and it worked great!

I got everything back together. Tonight will be the moment of truth when I refill the DeathCool and get that damned serpentine belt changed (what a poor design to have to remove the engine mount to get the belt off.......UGH!!!!!).
vital49 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
What in the air intake diameter of supercharger input? bigdawg56 Performance, Brainstorming & Tuning 2 06-05-2007 10:31 PM
Center hub size/diameter jshelton54 2000-2005 3 01-02-2007 12:14 PM
pre series intake or early tunned port intake best for turbo markviiisvt4 Performance, Brainstorming & Tuning 10 01-03-2006 12:46 PM
How many have had EGR port burn through vs lower gaskets? SSEBONNE4EVA 1992-1999 10 03-29-2005 11:00 AM
Intake diameter SSEi Performance, Brainstorming & Tuning 11 01-24-2004 03:51 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -4. The time now is 08:36 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.