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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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is it blowing out spark??

  • Thread starter Thread starter 91lxntch
  • Start date Start date Apr 18, 2004
9

91lxntch

Member
Sep 27, 2003
247
0
16
altoona,p.a
Apr 18, 2004
#1
  • Apr 18, 2004
  • #1
well my car ran fine after the h/c/i etc.....now i put on a msd 6al/blaster coil/msd cap-rotor/fms 9 mm wires and regapped plugs out to .050-.052...is this too much gap has anyone else had this problem and had it fixed with a lower gap?????/
 
9

91lxntch

Member
Sep 27, 2003
247
0
16
altoona,p.a
Apr 18, 2004
#2
  • Apr 18, 2004
  • #2
i guessi should specify that i changed the plugs yesterday and it ran fine for about 1-2 hr's...then it started having a slight miss and buck and the tach needle would bounce around a little..as soon as i put plugs in it bamm it is fine for about 1-2 hr's ....is my gap too much...what i dont understand is before the msd ignition or msd cap-rotor i ran about .048 and it seemed to run fine for 2 weeks now since the h/c/i swap
 
9

91lxntch

Member
Sep 27, 2003
247
0
16
altoona,p.a
Apr 18, 2004
#3
  • Apr 18, 2004
  • #3
the tach bounces around bad now when i rev it up this all started when i regapped my plugs and installed the msd 6al ive tried unhooking the wires to the coil and runnign it stock still dosent run right
 

wrathchild

Founding Member
Apr 5, 2000
1,433
3
38
Altoona, Pa
Apr 18, 2004
#4
  • Apr 18, 2004
  • #4
Are you positive that you got the right plugs for TFS TW heads. I know you told me you did but, are you sure? They need to be longer than stock plugs.
 

BlackFox5.0

Founding Member
Aug 7, 2000
3,514
1
0
Massachusetts
Apr 18, 2004
#5
  • Apr 18, 2004
  • #5
Do you have any kind of forced induction? If not I don't see how the spark could get blown out.

The stock gap is .050" - .054" on Autolite 25 plugs.

What kind of gas are you using, and what is your compression ratio?
 
9

91lxntch

Member
Sep 27, 2003
247
0
16
altoona,p.a
Apr 19, 2004
#6
  • Apr 19, 2004
  • #6
got it figured out fellas yea i ran the fr5's but i got autolite 3924's now because i needed them in a hurry and the ngk arent ever in stock, i also tapped out the num 1 cyl so all problems fixed now, what happened was i installed my msd 6al and it ran fine then few hr's later bad replaced about 2 dizzy caps and rotor butt. so when i took the msd off it still ran the same , i put a fresh cap on without the msd on it period and it has ran fine since....so my less than a week old msd is screwed....ill return it tommorow for a new one ..
 
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