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john dwyer Posted on May 12, 2012
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Red max eb7001 has new coil,gapped right still no spark. im going crazy

Replaced coil,cleaned all contacts.disconnected kill switch, set coil at0.10 and still no spark

1 Answer

ernesto cuadra

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  • Cars & Trucks Master 12,223 Answers
  • Posted on May 12, 2012
ernesto cuadra
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Joined: Sep 03, 2011
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1) The primary circuit: is battery, cap, resistor, capacitor,switch ignition+secondary circuit spark plug, distributor, high tension wires+spark plug.
the mayor problem arise in the coil and distributor, And the most common problem INCORRECT Choice de spark plugs or improperly gapped.
Rememeber the coil send 20,000-30,000 Vdc for spark plug.
Test with a screwdriver , pull out the center wire from the distributor cap and hold 3/8inch from a good ground. Crack the engine, if there no spark, or the spark is weak, the coil is defective or the high tension wires.
2) Bypass by a moment the baas resistor with a jumper wire while cranking engine If the engine starts, replace the ballast resistor.

God bless you.

5 Related Answers

s_pra_army

s_pra_army

  • 37 Answers
  • Posted on May 09, 2009

SOURCE: Need to set spark plug gap

Read the labels under the hood. Spark plug gap can quite often be found on one of the labels somewhere in the engine compartment.

If not, then the owners manual or a service manual that you can purchase.

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ROB

  • 858 Answers
  • Posted on Jul 27, 2009

SOURCE: have fuel and spark but no start

get a helper to crank it while you twist distributer slowly in either direction to see if it starts
let me know how you get on ok
Cheers Rob.

co7196

Ned C Cook

  • 3433 Answers
  • Posted on Sep 25, 2009

SOURCE: jaguar xj6 1995 no power when press gas pedal pressed all the way

No, no need to replace everything. There is a sensor, Mass air flow, located in one of the metal tube sections of your intake manifold. The qires will give it away. Pick up some CRC electrical spray cleaner and wash that sensor as good as you can without brushing, rubbib=nf r otherwise touching Do not use compressed air, it will dry quickly on its own. Seeif this saves you a few bucks. Your air cleaner/filter needs to be kept clean and leak free. The MAF controls your fuel and will shut down the engine if it doesn't sense the intake air. If you doubt your coils, watch under the hood after dark. If you see a light show, Replace whatever is letting the spar escape. and it wouldn't hurt to have the plugs gapped at specs. Good Luck, Ned-

Anonymous

  • 1 Answer
  • Posted on Oct 18, 2009

SOURCE: 1988 audi 80 4cyl. no spark from coil,new coil fitted,coil lead

hi i have a coupe 1994 have same prob told by audi to replace the distributor as was common failt on audi's i have replaced new leads ,coil ,dissy cap, and arm ,still the same awaiting on distributor to see if this works hope this helps

Anonymous

  • 31 Answers
  • Posted on Nov 05, 2009

SOURCE: Hey Ginko, Steve here, I

Replace your knock sensor.

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0helpful
1answer

I recently replaced the spark plugs on my 2001 toyota tacoma and now the engine idles high. no vacuum leaks, and nothing else was adjusted. could it be the spark plug gap?

NO ENGINE TOLD AT ALL OR VIN OR COUNTRY.
3 ENGINES USED. 2.4, 2.7 AND 3.4v6

FIRST OFF LEARN THIS FACT
THE MACHINES AT NGK SET ALL PLUGS TO
0.045" NEVER TO 0.45 ( i CAN THROW A HAT THROUGH THAT CRAZY WIDE GAP)
SURE YOU MISSED A KEY ZERO.
SURE.
AND EACH MAKER PLUG USES THERE OWN DEFAULT STANDARD MACHINE GAP . (FACTORY)
NOBODY MAKES A SPARK PLUG FRONT 100,000 ENGINES. NOBODY. THEY ARE BY HEAT RANGE AND SIZE.
THAT MEANS SET THE GAP TO OEM TOY SPEC.
NGK CATALOG ONLINE EVEN TELLS THAT SPEC.

IDLES HIGH COLD OR HOT ENGINE OR BOTH
NOT TOLD AND IS A KEY FACT NOT TOLD.
THE SPEC IS
IN THE SM

Adjust the spark plug electrode gap. Electrode gap for new spark plug is 1.0 to 1.1 mm (0.039 to 0.043 in.).
BEST IS 1MM SET, AND THAT LOWER SETTING
ALLOWS THE GAP TO WIDEN IT IT AGES AND RUN LONGER AND BETTER.

NO PLUGS TOLD
THE OEM TYPE CALLED J PLUGS ARE SET PER ABOVE
BUT SOME ODD DUCK BOSCH SURFACE FIRE
ARE FACTORY SET (BOSCH) AT 0.063 AND NOT ADJUSTABLE AT ALL
SO AS YOU LEARNED SPARK IS COMPLEX./
FOR SURE RUNNING ANY KIND OF ODD PLUGS.
SOLD NOW.

ID RUN

NGK 7090 G-Power; Pre-Set Gap: 0.040" Info
OE-Recommended Gap: 0.044"
SEEN HERE

https://www.rockauto.com/en/catalog/toyota,2001,tacoma,3.4l+v6,1375343,ignition,spark+plug,7212

SEE NEXT POST ON JUST IDLE. WRONG.
0helpful
1answer

Citroen c1 error code c1201

C1201 ABS Inlet Valve Coil LF Circuit Short To Ground.

The reason of Citroen C1 C1201 OBD-II Engine Error Code is C1201 ABS Inlet Valve Coil LF Circuit Short To Ground.

Solution: Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.
2helpful
1answer

1949fordrepairhelp

First of all , is it the original engine and if not, what kind of motor/ignition system do you have.If it is all original it should be a 6 volt system with contact points. First thing to check is if you have spark at the coil wire (distributor end). If not check if the distributor rotor turns as the engine is being cranked. If it does have spark you have a faulty rotor or cap, if no spark check for voltage to the + side of the coil. If you have voltage at the coil, check the contact points gap/condition . If the points are not burnt and are properly gapped (about .018") then you either have a faulty ignition coil. Check all of the above and repost.

Thanks, Dave
1helpful
1answer

Why don't I get a spark after replacing the coil on my Redmax grass cutter model TR2301S that is less than 3 years old.?

The gap between the coil and the magnets on the flywheel is critical. It is very close and needs a feeler gauge to be set. OR the magnets in the flywheel are bad.
2helpful
1answer

Spark plug gap on 1995 volvo 960 replaceing sparkplugs

Spark Plug removal procedure & gap info...
  • Remove spark plug access cover. (Black cover on top of engine.)
  • Once you have the black plastic cover off, number the coil packs with a magic marker 1 - 6 front to back so you can correctly replace them.
  • Coil packs are held in with a pair of 10mm bolts (A and B in the illustration. Later 960s have only one bolt at A).
  • Once you have the bolts out the pack should just pull out. A little twisting may help as there is an "O" ring seal at the top of the valve cover and a big boot at the spark plug.
  • Remove coils from spark plugs. Do NOT disconnect coil wires. (VERY IMPORTANT)
  • Inspect the condition of the wiring going to the coil pack. Look for crumbled insulation or charring. See 960 FAQ file for information on failing engine wiring harnesses.
  • If you have comprssed air blow out the plug cavity before you take the plug out. As an alternative use a vacuum cleaner and brush to clean any "stuff" out of the hole to avoid having it fall into the cylinder.
  • Remove spark plugs. Use a good quality, rubber insulated spark plug socket. Once they are unscrewed, you have to haul them up out of the hole.
  • Check and adjust spark plug gap to: 0.030" (.75 mm)
  • Install clean, "un-oiled", spark plugs and torque to: 18 ft. lbs .
  • Refit ignition coils.
  • Reinstall spark plug access cover.
  • narrow-gap risk: spark might be too weak/small to ignite fuel;
  • narrow-gap benefit: plug always fires on each cycle;
  • wide-gap risk: plug might not fire, or miss at high speeds;
  • wide-gap benefit: spark is strong for a clean burn.
0helpful
1answer

1937 Zephyer ( ford v-8 flathead)

1. points not opening or closing
2. Bad condenser
3 bad rotor or cap
4. Bad coil
5. Not likely but could be just a bad wire from the switch to the coil.

First you need to know if you have voltage to the coil -- if yes- go to 6.
if no -- go to 7 ..

6. Put a piece of thick paper between the points contacts, then check for voltage at the points from the coil . If there is voltage at the points ,, check the gap with the points wiper set on the high side of the lobe on the cam in the distributor . A gap of .015-.018 is most common on that engine.
7. If no voltage then back track to the ignition switch ,, fuse box , then battery

I put a plug wire in the coil output to the distributor and a plug in the other end -- lay plug on block and crank engine .. If there is spark at the plug , your in the ball game . If the spark is orange change capacitor if blue spark good to go . you might want to clean and gap your plugs before you reinstall them .
2helpful
2answers

How to replace sparl plugs on a Jeep Cherokee?

Hello, I hope this info helps...(subytech1)...REMOVAL
In this engine, each individual spark plug is located under each ignition coil.

  1. Prior to removing spark plug, spray compressed air around base ofignition coil at cylinder head. This will help prevent foreign materialfrom entering combustion chamber.
  2. On this engine each individual ignition coil must be removedto gain access to each spark plug. Refer to Ignition CoilRemoval/Installation.
  3. Check condition of coil O-ring and replace as necessary.
  1. Inspect spark plug condition. Refer to Spark Plug Conditions.
CLEANING
Theplugs may be cleaned using commercially available spark plug cleaningequipment. After cleaning, file center electrode flat with a smallpoint file or jewelers file before adjusting gap.

CAUTION: Never use a motorized wire wheel brush to clean sparkplugs. Metallic deposits will remain on spark plug insulator and willcause plug misfire.

ADJUSTMENT

Setting Spark Plug Gap - Typical
Check spark plug gap with a gap gauge tool. If the gap is not correct,adjust it by bending ground electrode. Never attempt to adjust gap bybending center electrode.

INSTALLATION

CAUTION: This engine is equipped with copper core groundelectrode spark plugs. They must be replaced with the same type/numberspark plug as the original. If another spark plug is substituted,pre-ignition will result.

Special care should be taken when installing spark plugs into cylinderhead spark plug wells. Be sure plugs do not drop into plug wells asground straps may be bent resulting in a change in plug gap, orelectrodes can be damaged.

Always tighten spark plugs to specified torque. Over tightening cancause distortion resulting in a change in spark plug gap or a crackedporcelain insulator.

  1. Start spark plug into cylinder head by hand to avoid cross threading.
  2. Tighten spark plugs to 27 Nm (20 ft. lbs.) torque.
  3. Before installing coil(s), check condition of coil O-ring andreplace as necessary. To aid in coil installation, apply silicone tocoil O-ring.
  4. Install ignition coil(s). Refer to Ignition Coil Removal/Installation.
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