289 problems, please help!!
04-08-2014, 09:05 PM
#11
Moderator
Join Date: Dec 2005
Location: Hills of California
Posts: 5,208
okay so here is a solution that actually fits the symptoms. Is it correct? Who knows but its worth looking into
It gets to 70 and falls on its face.
You threw a bunch of possible solutions at it and it made no difference.
Lets go back to basics...if it runs okay below 70 we can rule out any ignition component (at lest for now)
We'll rule out valve and rotating assembly crap (at least for now)
We'll rule out carbs (for now) and all top end junk
It idles great at an acceptable fuel mix setting and idle curb speed setting on the carb? Yes okay lets rule out vac leaks too (for now)
So its a fuel delivery problem...You have a blocked fuel line, pinched fuel line...a fuel restriction or a bad fuel pump that was replaced with a new bad fuel pump.
1) Remove fuel line from the carb and place it in a glass jar like a 1qt canning jar
2) Have a buddy crank over the engine but try not to start it (dont active the accelerator pumps)
3) fuel should rush out of the line and fill the jar with at least a cup of fuel before you can yell at him to stop it should attempt to make a mess. Place your finger over the line it should produce 6lbs of fuel pressure and you should be able to spray the fuel into the jar like a garden hose.
If fuel pressure is too low or volume is too low thats your problem (for example you crank the engine over and after 3 seconds you get only 4oz of fuel. )
If fuel pressure is too high (7+lbs) it can unseat the needles particularly at higher speed and flood the engine make sure your fuel pump is rated at 6.5lbs
Try this let me know
-Gun
It gets to 70 and falls on its face.
You threw a bunch of possible solutions at it and it made no difference.
Lets go back to basics...if it runs okay below 70 we can rule out any ignition component (at lest for now)
We'll rule out valve and rotating assembly crap (at least for now)
We'll rule out carbs (for now) and all top end junk
It idles great at an acceptable fuel mix setting and idle curb speed setting on the carb? Yes okay lets rule out vac leaks too (for now)
So its a fuel delivery problem...You have a blocked fuel line, pinched fuel line...a fuel restriction or a bad fuel pump that was replaced with a new bad fuel pump.
1) Remove fuel line from the carb and place it in a glass jar like a 1qt canning jar
2) Have a buddy crank over the engine but try not to start it (dont active the accelerator pumps)
3) fuel should rush out of the line and fill the jar with at least a cup of fuel before you can yell at him to stop it should attempt to make a mess. Place your finger over the line it should produce 6lbs of fuel pressure and you should be able to spray the fuel into the jar like a garden hose.
If fuel pressure is too low or volume is too low thats your problem (for example you crank the engine over and after 3 seconds you get only 4oz of fuel. )
If fuel pressure is too high (7+lbs) it can unseat the needles particularly at higher speed and flood the engine make sure your fuel pump is rated at 6.5lbs
Try this let me know
-Gun
04-08-2014, 09:34 PM
#12
Thread Starter
Join Date: Apr 2014
Location: Texas
Posts: 12
Here the thing, it's not running okay up to 70 anymore, it progressively got worse and now when I have it in park it won't rev past 2k, I haven't tried to drive yet with the new carb and such, I'll try it tomorrow, and I'll try the fuel pump deal too, thanks
04-08-2014, 10:43 PM
#13
4th Gear Member
Join Date: Nov 2013
Location: arizona
Posts: 1,398
Yes it did have the problem
And this is the distributor I have http://www.summitracing.com/parts/su...view/make/ford
And this is the distributor I have http://www.summitracing.com/parts/su...view/make/ford
also, disconnect your tach. i have had tachs go bad and cause probs.
Last edited by barnett468; 04-08-2014 at 10:51 PM.
04-08-2014, 11:44 PM
#14
Thread Starter
Join Date: Apr 2014
Location: Texas
Posts: 12
Okay, the distributor is not a MSD it's a summit racing HEI, as for what you suggested in post 4, I got rid of the edlebrock, bought a brand new holley, brand new plug wires and new ignition coil, my vacuum was always connected and I connected it to the holley as well,
04-08-2014, 11:52 PM
#15
Moderator
Join Date: Dec 2005
Location: Hills of California
Posts: 5,208
if its not a carb issue adding a new carb particularly a holly on top of your current issue is going to be a nightmare. Im afraid that you have added an additional issue (a carb that isn't tuned) The holley 4150 is an amazing carb but it does take some time to tune. If you have an issue outside the carb then you cant tune it and now you have additional issues.
If the issue is getting worse then its either further degradation of the fuel system (still first thing on the list to check) OR we can now re-investigate ignition system.
-Gun
If the issue is getting worse then its either further degradation of the fuel system (still first thing on the list to check) OR we can now re-investigate ignition system.
-Gun
04-09-2014, 03:15 AM
#17
4th Gear Member
Join Date: Nov 2013
Location: arizona
Posts: 1,398
what would help is if you answer the questions that are asked and do the things that are suggested.
you still have not told me if you have an msd ignition and you have not doe what i suggested with the timing check.
i am talking about an aftermarket ignition box not the distributor. the box will be red or yellow around 2" high by 6 inches long by 2 1/2 inches wide
report back your findings after you do the timing stuff.
you still have not told me if you have an msd ignition and you have not doe what i suggested with the timing check.
i am talking about an aftermarket ignition box not the distributor. the box will be red or yellow around 2" high by 6 inches long by 2 1/2 inches wide
report back your findings after you do the timing stuff.
Last edited by barnett468; 04-09-2014 at 03:22 AM.
04-09-2014, 08:42 AM
#18
Thread Starter
Join Date: Apr 2014
Location: Texas
Posts: 12
what would help is if you answer the questions that are asked and do the things that are suggested.
you still have not told me if you have an msd ignition and you have not doe what i suggested with the timing check.
i am talking about an aftermarket ignition box not the distributor. the box will be red or yellow around 2" high by 6 inches long by 2 1/2 inches wide
report back your findings after you do the timing stuff.
you still have not told me if you have an msd ignition and you have not doe what i suggested with the timing check.
i am talking about an aftermarket ignition box not the distributor. the box will be red or yellow around 2" high by 6 inches long by 2 1/2 inches wide
report back your findings after you do the timing stuff.
04-09-2014, 10:51 AM
#19
Thread Starter
Join Date: Apr 2014
Location: Texas
Posts: 12
okay so here is a solution that actually fits the symptoms. Is it correct? Who knows but its worth looking into
It gets to 70 and falls on its face.
You threw a bunch of possible solutions at it and it made no difference.
Lets go back to basics...if it runs okay below 70 we can rule out any ignition component (at lest for now)
We'll rule out valve and rotating assembly crap (at least for now)
We'll rule out carbs (for now) and all top end junk
It idles great at an acceptable fuel mix setting and idle curb speed setting on the carb? Yes okay lets rule out vac leaks too (for now)
So its a fuel delivery problem...You have a blocked fuel line, pinched fuel line...a fuel restriction or a bad fuel pump that was replaced with a new bad fuel pump.
1) Remove fuel line from the carb and place it in a glass jar like a 1qt canning jar
2) Have a buddy crank over the engine but try not to start it (dont active the accelerator pumps)
3) fuel should rush out of the line and fill the jar with at least a cup of fuel before you can yell at him to stop it should attempt to make a mess. Place your finger over the line it should produce 6lbs of fuel pressure and you should be able to spray the fuel into the jar like a garden hose.
If fuel pressure is too low or volume is too low thats your problem (for example you crank the engine over and after 3 seconds you get only 4oz of fuel. )
If fuel pressure is too high (7+lbs) it can unseat the needles particularly at higher speed and flood the engine make sure your fuel pump is rated at 6.5lbs
Try this let me know
-Gun
It gets to 70 and falls on its face.
You threw a bunch of possible solutions at it and it made no difference.
Lets go back to basics...if it runs okay below 70 we can rule out any ignition component (at lest for now)
We'll rule out valve and rotating assembly crap (at least for now)
We'll rule out carbs (for now) and all top end junk
It idles great at an acceptable fuel mix setting and idle curb speed setting on the carb? Yes okay lets rule out vac leaks too (for now)
So its a fuel delivery problem...You have a blocked fuel line, pinched fuel line...a fuel restriction or a bad fuel pump that was replaced with a new bad fuel pump.
1) Remove fuel line from the carb and place it in a glass jar like a 1qt canning jar
2) Have a buddy crank over the engine but try not to start it (dont active the accelerator pumps)
3) fuel should rush out of the line and fill the jar with at least a cup of fuel before you can yell at him to stop it should attempt to make a mess. Place your finger over the line it should produce 6lbs of fuel pressure and you should be able to spray the fuel into the jar like a garden hose.
If fuel pressure is too low or volume is too low thats your problem (for example you crank the engine over and after 3 seconds you get only 4oz of fuel. )
If fuel pressure is too high (7+lbs) it can unseat the needles particularly at higher speed and flood the engine make sure your fuel pump is rated at 6.5lbs
Try this let me know
-Gun
04-09-2014, 12:17 PM
#20
Foghorn Leghorn
Join Date: Dec 2006
Location: I reside in a near constant state of amazment.
Posts: 2,923
I had a very similar situation on my 64 Fairlane.
On those older Fords there is a length of hose about 4" long between the fuel tank and the hard line. The inside of that length of hose crystalized, for lack of a better word, and the car would run ok until I hit highway speeds then it would fall on its face. Replaced the hose and I was back in bidness.
It doesn't cost a nickle to check so you might want to give that a peek.
On those older Fords there is a length of hose about 4" long between the fuel tank and the hard line. The inside of that length of hose crystalized, for lack of a better word, and the car would run ok until I hit highway speeds then it would fall on its face. Replaced the hose and I was back in bidness.
It doesn't cost a nickle to check so you might want to give that a peek.