ChevelleForum.net

Go Back   Chevrolet Chevelle Forums > Chevrolet Chevelle Car Talk > Chevrolet Corner

Reply
 
Thread Tools Display Modes
  #101  
Old 10-17-2016, 12:23 PM
carpoor carpoor is offline
Senior Member
 
Join Date: Dec 2011
Location: Floriduh
Posts: 2,404
Default

Much better.
Attached Thumbnails
Click image for larger version

Name:	IMG_20161017_123630953.jpg
Views:	299
Size:	52.9 KB
ID:	4010   Click image for larger version

Name:	IMG_20161017_135731716_HDR.jpg
Views:	331
Size:	70.7 KB
ID:	4011  
__________________
1972 SS 454 Chevelle LS5/M21/12 bolt 3.73 posi
1969 Malibu COPO L72/M20/12 bolt 3.31 posi
1968 Malibu LQ9/4L80E/12 bolt 3.73 posi

Last edited by carpoor; 10-17-2016 at 01:31 PM.
Reply With Quote
  #102  
Old 10-17-2016, 04:58 PM
flash flash is offline
Senior Member
 
Join Date: Dec 2009
Location: Canton Georgia
Posts: 8,349
Default

Looks good .
__________________

John
Reply With Quote
  #103  
Old 12-27-2016, 11:34 AM
carpoor carpoor is offline
Senior Member
 
Join Date: Dec 2011
Location: Floriduh
Posts: 2,404
Default

I installed the larger fuel injectors and a fresh set of spark plugs today. Should be going on the chassis dyno for a full tune in about a week or two.
__________________
1972 SS 454 Chevelle LS5/M21/12 bolt 3.73 posi
1969 Malibu COPO L72/M20/12 bolt 3.31 posi
1968 Malibu LQ9/4L80E/12 bolt 3.73 posi
Reply With Quote
  #104  
Old 03-13-2017, 06:37 PM
carpoor carpoor is offline
Senior Member
 
Join Date: Dec 2011
Location: Floriduh
Posts: 2,404
Default

After many delays, it is finally getting tuned tomorrow morning. I will post pictures and dyno results when it is all said and done. I am hoping for at least 370 at the tires.
__________________
1972 SS 454 Chevelle LS5/M21/12 bolt 3.73 posi
1969 Malibu COPO L72/M20/12 bolt 3.31 posi
1968 Malibu LQ9/4L80E/12 bolt 3.73 posi
Reply With Quote
  #105  
Old 03-14-2017, 05:00 PM
carpoor carpoor is offline
Senior Member
 
Join Date: Dec 2011
Location: Floriduh
Posts: 2,404
Default

Well, things didn't go as planned. It has a miss, and something is up with the #7 cylinder. I need to do a compression and leak down test. My father is devastated and wants to get rid of the truck.
Attached Thumbnails
Click image for larger version

Name:	IMG_0006.jpg
Views:	253
Size:	115.9 KB
ID:	4108   Click image for larger version

Name:	IMG_20170314_134053907_HDR.jpg
Views:	269
Size:	46.3 KB
ID:	4109   Click image for larger version

Name:	IMG_20170314_135422645.jpg
Views:	254
Size:	63.5 KB
ID:	4110  
__________________
1972 SS 454 Chevelle LS5/M21/12 bolt 3.73 posi
1969 Malibu COPO L72/M20/12 bolt 3.31 posi
1968 Malibu LQ9/4L80E/12 bolt 3.73 posi

Last edited by carpoor; 03-24-2017 at 07:39 PM.
Reply With Quote
  #106  
Old 03-14-2017, 08:19 PM
flash flash is offline
Senior Member
 
Join Date: Dec 2009
Location: Canton Georgia
Posts: 8,349
Default

I hope he changes his mind ,stuff happens all the time .
__________________

John
Reply With Quote
  #107  
Old 03-15-2017, 12:15 PM
carpoor carpoor is offline
Senior Member
 
Join Date: Dec 2011
Location: Floriduh
Posts: 2,404
Default

Right now, he is really upset. I am going to keep him busy with other things in the meantime.
__________________
1972 SS 454 Chevelle LS5/M21/12 bolt 3.73 posi
1969 Malibu COPO L72/M20/12 bolt 3.31 posi
1968 Malibu LQ9/4L80E/12 bolt 3.73 posi
Reply With Quote
  #108  
Old 03-24-2017, 07:45 PM
carpoor carpoor is offline
Senior Member
 
Join Date: Dec 2011
Location: Floriduh
Posts: 2,404
Default

I took a little time today to pop the valve cover and look for any broken valve springs. Everything looks good. I was suspicious of the plug wire, changed that wire. No real change, still flutters at idle. Next is a compression test, and I want to move the injector from that cylinder to another to see if the miss follows it.

It's tucked away in the garage for now.
Attached Thumbnails
Click image for larger version

Name:	IMG_20170324_105314128_HDR.jpg
Views:	226
Size:	66.5 KB
ID:	4121   Click image for larger version

Name:	IMG_20170324_105445003_HDR.jpg
Views:	241
Size:	59.7 KB
ID:	4122  
__________________
1972 SS 454 Chevelle LS5/M21/12 bolt 3.73 posi
1969 Malibu COPO L72/M20/12 bolt 3.31 posi
1968 Malibu LQ9/4L80E/12 bolt 3.73 posi
Reply With Quote
  #109  
Old 03-29-2017, 06:22 PM
carpoor carpoor is offline
Senior Member
 
Join Date: Dec 2011
Location: Floriduh
Posts: 2,404
Default

Spent more time on it yesterday. I started by swapping the injectors for the #1 and #7 cylinders. Sure enough, the miss moved to the #1 cylinder. I got the engine up to temp and the #1 header tube was over 200 degrees cooler than the other seven cylinders. (Verified with an infrared gun, great tool)

New injector is on the way, should fix that problem.
__________________
1972 SS 454 Chevelle LS5/M21/12 bolt 3.73 posi
1969 Malibu COPO L72/M20/12 bolt 3.31 posi
1968 Malibu LQ9/4L80E/12 bolt 3.73 posi
Reply With Quote
  #110  
Old 04-01-2017, 05:03 PM
carpoor carpoor is offline
Senior Member
 
Join Date: Dec 2011
Location: Floriduh
Posts: 2,404
Default

Got the injector swapped in, and installed two fresh plugs in #1 & #7. It's running much better. All I can say is - this thing is going to wear out back tires at an alarming rate.

It seems that I have traded one problem for another. None of the lights are working. Might be a ground wire that we forgot to reconnect when the bed was off. Going to stick it on the lift Tuesday and start tracing wires.
__________________
1972 SS 454 Chevelle LS5/M21/12 bolt 3.73 posi
1969 Malibu COPO L72/M20/12 bolt 3.31 posi
1968 Malibu LQ9/4L80E/12 bolt 3.73 posi
Reply With Quote
Reply

Thread Tools
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

Forum Jump


All times are GMT -5. The time now is 03:21 PM.



Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Audiokarma.org