Re: 440 Six Pack Sucks (Vacuum Leak)
[Re: DAYCLONA]
#1495165
10/07/13 01:35 PM
10/07/13 01:35 PM
|
Joined: Jun 2012
Posts: 43 Pacific Grove, CA
black68gtx
OP
member
|
OP
member
Joined: Jun 2012
Posts: 43
Pacific Grove, CA
|
One thing that is sometimes over looked when the idle is high, or unresponsive, are the end carbs, not being properly closed at idle, make sure the end throttle blades are fully close,if not, the possible causes usually are: improper linkage adjustment, or throttle blade/bore base plate misalignment, a nick/gouge in the base plate bore/blade that's keeping the thottle blade from fully closing, this might be the source for some of your idle woes
Thanks I'll put that on my list.
|
|
|
Re: 440 Six Pack Sucks (Vacuum Leak)
[Re: DAYCLONA]
#1495166
10/07/13 01:40 PM
10/07/13 01:40 PM
|
Joined: Oct 2003
Posts: 2,537 PORT ALBERNI , BC., CANADA
superwrench
master
|
master
Joined: Oct 2003
Posts: 2,537
PORT ALBERNI , BC., CANADA
|
Now that you got the timing where it's decent, focus on the carbs. Like Dayclona says.....could be end carb adjustment OR center carb mixture is way off. Progress is good.....just sometimes brutally slow!!! I can't even begin to tell you how much frigging around I had to do to get my 6 pak to idle when I changed to a XE295HL Comp cam years ago. Even had to go as far as drilling 1/8" holes in the throttle plates. That would be my last resort in your case though.
|
|
|
Re: 440 Six Pack Sucks (Vacuum Leak)
[Re: black68gtx]
#1495171
10/20/13 12:58 AM
10/20/13 12:58 AM
|
Joined: Jun 2012
Posts: 43 Pacific Grove, CA
black68gtx
OP
member
|
OP
member
Joined: Jun 2012
Posts: 43
Pacific Grove, CA
|
Ok I'm back and still chasing this problem. I have since replaced the intake and put a new center carb on. And have now discovered that I'm not getting fuel to the carbs. I disconnected the fuel filter (between the tank and pump) and thought that I'd check to see if I got fuel coming out the line from the gas tank. I did my best to blow into the tank and I was able to get fuel to flow out not a lot but some. Next, I disconnected the pump and cranked the engine with no fuel coming out. I took the pump off of my other big block (383) and replaced it. I will mention that the pump I took off of the 440 did not appear to be working and had a hole at the top. After replacing that I still can not get fuel to the carbs. The only thing that I couldn't do was run a line from the pump the to the carbs bypassing the FUEL VAPOR SEPERATOR (I just didn't have an extra fuel line). Anyone want to put in there ? Gas / Fuel Tank Sending Unit plugged? or Fuel separator plugged?
|
|
|
Re: 440 Six Pack Sucks (Vacuum Leak)
[Re: superwrench]
#1495178
10/25/13 11:18 AM
10/25/13 11:18 AM
|
Joined: Jun 2012
Posts: 43 Pacific Grove, CA
black68gtx
OP
member
|
OP
member
Joined: Jun 2012
Posts: 43
Pacific Grove, CA
|
Finished installing the new fuel filter (because of the hole) rechecked all of the plug wire (a couple were burnt by the headers). My Mopar Buddy (came from 4 hours away) did the following: 1-disconnected the accelerator & kickdown linkage, then reset them 2-adjusted all of the fuel mixtures screws 3-adjusted the curb screw (it was way really off) 4-checked timing reset to 38 @ 2400 5-re-set the float level on all carbs (the new one was way off) In less then 45 minutes Dave got it dialed in. Finally it idles and I can put it in drive without the engine stalling. Thanks to everyone for the help. To some it up I had a cracked intake at the 7 port. I'll check back if I have any other issues
|
|
|
|
|