Author Topic: Help! Hot pipe  (Read 1051 times)

0 Members and 1 Guest are viewing this topic.

Offline hollanderbill

  • Jr. Member
  • **
  • Posts: 1
  • Karma: 0
Help! Hot pipe
« on: July 13, 2012, 12:42:11 PM »
I have a problem with my 84, 12-A. Since I took it out of winter storage it ran great for 15 miles or so. The next time I started it, it smelled hot. In checking, I found the RB header glowing red hot. It idles slightly rough about 1600 RPM.
I checked for obvious vacuum leaks or choke problems, but found nothing.
Now the header will start to glow within a couple of minutes of idling. I can pull any 2 plugs off and it will still keep running.
The only mods are the RB header & I run prenix  1-oz./gal. The aux. oil pump is blocked off. It's been running great like this for 2 years. Milage is 65000.
Anyone have any ideas about what's going on?

Offline ~Groll69~

  • Administrator
  • Rotary God!!
  • *****
  • Posts: 1235
  • Karma: 1
  • Gender: Male
    • Elegant Lady Bridal and Tuxedo
Re: Help! Hot pipe
« Reply #1 on: July 13, 2012, 01:22:35 PM »
i am wondering if it is getting too much fuel and cuasing the excess to burn in the tailpipe.  Might want to check the carberator to ensure its not putting too much into the system. 
"Long Live Rotary"

An RX-7 is like having a slut as a gf! She will love you, but she will also screw around with the guy at the parts store, most of the local cops, your insurance agent, your apex seals, your bank account and your credit card!!!

Offline ITSWILL

  • Rotary God!!
  • ******
  • Posts: I am a geek!!
  • Karma: 9
  • Gender: Male
Re: Help! Hot pipe
« Reply #2 on: July 14, 2012, 08:14:26 PM »
Do you have a catalytic converter, maybe it's plugged?
86 Base LS1 w/100 shot
88 TII 20B T70 turbo

Offline Kentetsu

  • Jr. Member
  • **
  • Posts: 67
  • Karma: 1
  • Gender: Male
  • The older I get, the faster I go
Re: Help! Hot pipe
« Reply #3 on: July 18, 2012, 05:11:56 AM »
3 possibilities for you:

1.  You lost your leading ignition (for whatever reason, it just happens sometimes)
2.  Your timing is horribly retarded (firing too late)
3.  Carb issues causing it to run extremely lean (check levels in float bowl windows)

Good luck. :)
"Learn from the past, or it will become your future...."

'85 GS 12a/Sterling carb/Respeed coilovers/Respeed front swaybar/Respeed adj. rear spring perches/Illuminas

AutoX vids @ You are not allowed to view links. Register or Login