|
|
|
|
05-01-2016, 03:09 PM
|
#1 |
|
Senior Member
Join Date: Oct 2002
Location: Mahopac, NY
Posts: 666
Likes: 48
Liked 113 Times in 9 Posts
|
Re: Hesitation/lack of power
Check the accelerator pump gasket, they dry out from sitting especially after using VP fuels. Chased that for a while once.
__________________
Joe DeMarzo 1317 STK |
|
|
|
05-01-2016, 03:48 PM
|
#2 |
|
Member
Join Date: May 2014
Location: E TN
Posts: 473
Likes: 16
Liked 133 Times in 76 Posts
|
Re: Hesitation/lack of power
Described hesitation is usually too much or too little fuel. Too much and you'd get a black puff when it finally picked up. Too little and it's just a dead spot. I'd bet too little. I'd start by dissembling carb and cleaning thoroughly.
What carb does it have? |
|
|
|
|
05-01-2016, 06:12 PM
|
#3 |
|
VIP Member
Join Date: Jun 2009
Location: Boulder City, Nevada 89005
Posts: 2,733
Likes: 2,799
Liked 2,485 Times in 697 Posts
|
Re: Hesitation/lack of power
X2.............Sound like Carb.
__________________
John Irving 741 Stock 741 Super Stock |
|
|
|
|
05-01-2016, 06:44 PM
|
#4 |
|
Member
Join Date: Aug 2010
Posts: 212
Likes: 13
Liked 68 Times in 26 Posts
|
Re: Hesitation/lack of power
how much timing are you using? where is your total set at ?what rpm? just curious
|
|
|
|
|
05-01-2016, 07:38 PM
|
#5 |
|
VIP Member
Join Date: Dec 2001
Location: Texarkana Ark/TX
Posts: 2,446
Likes: 575
Liked 880 Times in 311 Posts
|
Re: Hesitation/lack of power
Change the coil wire!
__________________
Adger Smith (Former SS) |
|
|
|
|
05-01-2016, 09:37 PM
|
#6 |
|
Member
Join Date: Apr 2005
Location: Bethany La.
Posts: 323
Likes: 96
Liked 169 Times in 53 Posts
|
Re: Hesitation/lack of power
accelerator pump. they shrink after sitting up for a while.
__________________
Bill Bogues 4696 STK |
|
|
|
|
05-01-2016, 11:07 PM
|
#7 | |
|
Senior Member
Join Date: May 2010
Location: Raleigh NC
Posts: 637
Likes: 27
Liked 254 Times in 78 Posts
|
Re: Hesitation/lack of power
Quote:
__________________
Mike Moller NHRA 203 Q-R-T/SA |
|
|
|
|
|
05-02-2016, 11:07 AM
|
#8 |
|
Live Reporter
Join Date: Oct 2004
Location: Hickory, Ky
Posts: 10,640
Likes: 1,937
Liked 10,712 Times in 2,230 Posts
|
Re: Hesitation/lack of power
Verify TDC and "0" on the timing mark.
|
|
|
|
|
05-03-2016, 11:52 AM
|
#9 |
|
Junior Member
Join Date: Aug 2005
Location: GAINESVILLE,VA
Posts: 81
Likes: 0
Liked 2 Times in 2 Posts
|
Re: Hesitation/lack of power
Change the coil wire!
??? explain?
__________________
Glen Myers 126 GT/HA used to Now retired |
|
|
|
|
05-03-2016, 12:08 PM
|
#10 |
|
VIP Member
Join Date: Dec 2001
Location: Texarkana Ark/TX
Posts: 2,446
Likes: 575
Liked 880 Times in 311 Posts
|
Re: Hesitation/lack of power
What one wire in the ignition system causes the most resistance when it wears out or becomes ineffective at passing electrical current? It is the one wire that passes all 8 electrical impulses of the engine firing cycle. That one wire is used 8 times more than the normal spark plug wire. When that wire breaks down it is very similar to having a coil that goes bad. The spark energy is used up jumping inside the wire, just like a large gap resistor plug. If you ever find a bad one split it open and you can usually pour out the carbon/graphite that has turned to a powder or burned up. Test the resistance and you will see the bad coil wire is way up in resistance per foot than one of the other plug wires.
Coil wires should be replaced frequently. He did mention that it came back alive after a higher RPM. If it had low spark energy getting to the plugs at low RPM the coil wire can cause that. Oh, Low spark energy will make you think it is carb related because it shows up as rich at the plugs.
__________________
Adger Smith (Former SS) Last edited by Adger Smith; 05-03-2016 at 12:13 PM. Reason: SP & Add |
|
|
|
 |
|
|
Hybrid Mode
