6066 (1960-1966) GMC Truck Club Bitcoin now accepted here! 
Pay Dues
Pay Dues or become a Site Supporter
 



Go Back   6066 (1960-1966) GMC Truck Club > 6066 GMC Truck Club Forum > I-6 Engines


I-6 Engines For GMCs that came with the Inline 6 Engines

Reply
 
Thread Tools
  #11  
Old October 2nd, 2016, 07:11 PM
AZKen AZKen is online now
-= Dues Paid =-
 
Join Date: Jul 2014
Location: State48
Truck: 1960 K1001 Wideside 305 BW Custom Cab
Posts: 790
Rep Power: 0
AZKen is infamous around these partsAZKen is infamous around these parts
Default Re: Loud squalling noise from Inline 6

Sorry about the idle problem. Gotta get that fixed also. Take off the belt(s) and start it up and see if it squeaks. That will tell you if it's the belt or something it drives. You can't tell if a belt squeaks by looking at it or tightness.
Reply With Quote
  #12  
Old October 2nd, 2016, 08:25 PM
FetchMeAPepsi's Avatar
FetchMeAPepsi FetchMeAPepsi is offline
-= Dues Paid =-
 
Join Date: Jan 2013
Location: Edmond, Ks
Truck: 1962 4x4 GMC CECILIA
Posts: 1,337
Rep Power: 365
FetchMeAPepsi is on a distinguished road
Default Re: Loud squalling noise from Inline 6

Quote:
Originally Posted by rusty66 View Post
Glad I could give you guys a good laugh. Pretty sure its not the radio since the truck does not have one. I will change the fuel filter when I rebuild the carb. I haven't been able to keep the engine running to get close to the noise as I have no help and the truck won't idle. I think it might be a bearing in the generator maybe.
You start it, it starts, then dies? Is that right? All within a few seconds? (10-20)

If so, maybe your generator is out and it's not able to keep the truck running. I hear they're easy to rebuild, but you could also swap to a GM 2 wire alternator too pretty easily. You might can kill 2 birds with one hammer!
__________________
Step by steps:

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Some people are like slinkys. Not worth much but funny as heck when pushed down stairs.
__________________
If the women don't find you handsome, they should at least find you handy.
Reply With Quote
  #13  
Old October 2nd, 2016, 11:24 PM
rusty66 rusty66 is offline
-= Dues Paid =-
 
Join Date: Jul 2013
Location: Madisonville,Tn.
Truck: 1966 I100
Posts: 44
Rep Power: 39
rusty66 is on a distinguished road
Default Re: Loud squalling noise from Inline 6

Thank you all for the advice. I will let you know how it comes out soon.
Reply With Quote
  #14  
Old October 3rd, 2016, 02:25 AM
GMCDAC's Avatar
GMCDAC GMCDAC is online now
Senior Member
 
Join Date: Jan 2013
Location: Green Valley, east of Rapid City,SD
Truck: I have 4 GMCs, none with a V-6 - YET! Have had 2 in the family.
Age: 60
Posts: 540
Rep Power: 166
GMCDAC is on a distinguished road
Default Re: Loud squalling noise from Inline 6

Hi Rusty66, I will add one more thing, that may or may not apply to your generator. The one on my '55 GMC has lubrication ports on each end. I know this generator is later model than the truck but I don't know how much. Once a year I add a couple drops of 10wt oil to them.

DAC
Attached Images
File Type: jpg generator oil ports.jpg (933.6 KB, Multiple views, 1 clicks)
__________________
Doug Crawford
Rapid City, SD

1970 GMC K5 Jimmy Mom drove 30 years
1972 GMC C2500 owned since 1979
1955 GMC 100 driver-project
2006 GMC Yukon Denali---wife's truck

Hope to have a '60 GMC Suburban again someday
Reply With Quote
  #15  
Old October 3rd, 2016, 03:27 PM
turbobill turbobill is offline
Member
 
Join Date: Feb 2013
Location: northern NY
Truck: A few engines plus a Toro-Flow
Posts: 84
Rep Power: 52
turbobill is on a distinguished road
Default Re: Loud squalling noise from Inline 6

Quote:
Originally Posted by rusty66 View Post
I am having trouble with my 250ci inline 6 stock engine. It won't idle. Carb looked dirty, black gunky inside so I have decided to rebuild the carb. The truck is also now making an awful sound like a cat squalling. Anyone that could help me figure out the likely cause, I would appreciate the help. The truck still has the generator setup.
Sounds like a vacuum leak. I've seen carburetor base and body gaskets act like a reed in a musical instrument, resulting in some pretty strange noises. Make sure everything is tight. Also spraying carb cleaner or some other solvent around suspected area's may help you find vacuum leaks too.
Reply With Quote
  #16  
Old October 4th, 2016, 11:37 PM
rusty66 rusty66 is offline
-= Dues Paid =-
 
Join Date: Jul 2013
Location: Madisonville,Tn.
Truck: 1966 I100
Posts: 44
Rep Power: 39
rusty66 is on a distinguished road
Default Re: Loud squalling noise from Inline 6

Hi All,
Changed the fuel filter and have a carb kit from NAPA. Got some help from my wife and started the truck after changing the filter. It still won't idle but the noise is from the base of the carb I think, as Turbobill suggested. i will work on the carb kit tomorrow. Looks like I might have to replace the gas tank and fuel lines at some point too.
Attached Images
File Type: jpg 20161004_163202.jpg (220.2 KB, Multiple views, 4 clicks)
Reply With Quote
  #17  
Old October 6th, 2016, 06:50 AM
AZKen AZKen is online now
-= Dues Paid =-
 
Join Date: Jul 2014
Location: State48
Truck: 1960 K1001 Wideside 305 BW Custom Cab
Posts: 790
Rep Power: 0
AZKen is infamous around these partsAZKen is infamous around these parts
Default Re: Loud squalling noise from Inline 6

Good work Rusty and Turbo!!!!!
Rusty, I think that filter tells you something. Make sure you clean everything well. Your fuel system is "Gumby Dammit"
Reply With Quote
  #18  
Old January 29th, 2017, 07:14 PM
bluestreak1854 bluestreak1854 is offline
Junior Member
 
Join Date: Apr 2016
Location: Clarendon Texas
Truck: 1966 GMC 4000
Age: 63
Posts: 17
Rep Power: 15
bluestreak1854 is on a distinguished road
Default Re: Loud squalling noise from Inline 6

Check to see whether something is stuck in the PCV valve. If it's dumping too much vacuum, it will make the engine run rough and not want to idle and can sometimes make a squealing noise.
Reply With Quote
  #19  
Old January 29th, 2017, 07:18 PM
bluestreak1854 bluestreak1854 is offline
Junior Member
 
Join Date: Apr 2016
Location: Clarendon Texas
Truck: 1966 GMC 4000
Age: 63
Posts: 17
Rep Power: 15
bluestreak1854 is on a distinguished road
Default Re: Loud squalling noise from Inline 6

Also the squalling noise could be from a stopped up exhaust system.
Reply With Quote
  #20  
Old January 31st, 2017, 06:57 PM
rusty66 rusty66 is offline
-= Dues Paid =-
 
Join Date: Jul 2013
Location: Madisonville,Tn.
Truck: 1966 I100
Posts: 44
Rep Power: 39
rusty66 is on a distinguished road
Default Re: Loud squalling noise from Inline 6

Very late update. I took the intake/exhaust manifold off and cleaned up the surfaces and replaced the gasket with one from NAPA. Put on the carb I got from GMCDAC (thanks again Doug). The engine runs and idles now. Thanks to all for the help.

Gary in Tenn.
Reply With Quote
Reply

Bookmarks

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Noise question Archiver Previous Forum Posts 0 October 23rd, 2006 02:34 AM
valve noise Archiver Previous Forum Posts 0 April 2nd, 2005 11:08 AM
valve noise Archiver Previous Forum Posts 0 April 1st, 2005 01:10 AM
Re: Knocking Noise Archiver Previous Forum Posts 0 June 11th, 2002 03:52 PM
How do I get rid of this noise Archiver Previous Forum Posts 0 January 19th, 2002 01:36 AM


All times are GMT +1. The time now is 03:30 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2013, Jelsoft Enterprises Ltd 102|0
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.