|
|
|
|
|
|||||||
 |
|
|
LinkBack | Thread Tools | Rate Thread |
| Author |
|
|
Registered
Join Date: Sep 2008
Posts: 9
|
New MSD installed : engine runs, gets warm, misfiring and died after 2 kilometers....
Hello everyone!
I need a little help with this story...! I was running ok and smooth on 5th gear at the beginning of this summer. Then my engine made an enormous backfire and died on the road. I had to tow the car back to my place and check out for troubles. I found problem with original CD box (mine is 911t 1970 2.2.L). So I decided to go for a new MSD 6AL with blaster 2 coil, bosch distributor (replacing then my old marrelli) and Pertronix and new set of spark plugs with 1,4 gap. I fixed everything mentionned here and the engine was then again working (slitly misfiring but working ok at idle) Now if I go for a little drive (let's say 2-3 kilometers), while it gets warmer, the car considerably degenerates ! It goes for little spark time adjustment (which I fixed while rotating my distributor) from bad bad bad misfiring until the car shocks and died. Now I don't know what to look for...? Do I have carburator problem (then again my zenith were adjusted not long ago and working very well with CD box)? I've check my spark plugs and they all seem to be a little wet (mixture is maybe too rich, but it that enough to get to this situation...!?) Anyway, if someone somewhere has so far a clue to this situation, please let me know!!! Feel free to ask for more details! Thanks GQ |
||
09-11-2008, 05:44 PM
|
|
|
Registered
Join Date: Apr 2006
Location: Austin
Posts: 1,631
|
Is your distributor off by 180 degrees? Open it up when you're on top dead center and see if the rotor is pointing to #4 instead of #1.
Hope this helps!
__________________
Warren Hall (Early S Man), 1950 - 2008 ------------------------------------ 2006 Tri D675 Scorched Yellow 2006 Ducati Sport Classic mono SOLD 1979 SCWDP #0020 Talbot Yellow SOLD |
||
|
09-11-2008, 06:04 PM
|
|
|
Registered
Join Date: Sep 2008
Posts: 9
|
I confirm : distributor is not on wrong side (cylinder #1 is pointed on top dead)
GQ |
||
|
09-12-2008, 12:21 PM
|
|
|
Registered
|
I know it is new, but is the coil going bad? They can get weaker as they heat up. Is ther a rev limiter switch or chip that could be going bad or set wrong?
Just throwing some thoughts out there.
__________________
Mike '99 Isuzu VX, 2005 Audi A4 1.8T Quattro '96 BMW 328ic '73 911T Targa SOLD www.flickr.com/photos/fenderbender813 |
||
|
09-12-2008, 01:20 PM
|
|
|
Registered
|
I had that happen when I ran 2 coils off of 1 MSD but when I drive with 2 boxes its fine. I would susspect that the msd box is no good. call them for technical
__________________
Ben 89 944,85.5 944 914-6 2.4s GT tribute. 914-6werkshop.com |
||
|
09-12-2008, 03:40 PM
|
|
|
Registered
Join Date: Aug 2007
Location: San Diego, CA
Posts: 148
|
I had a similar problem when I mounted a standard Blaster 2 coil in the factory location on the fan. I fried a coil mounting it there. Some people use the epoxy filled version with success, but I just decided to relocate the coil off of the engine.
|
||
|
09-12-2008, 04:56 PM
|
|
|
|
Registered
Join Date: Sep 2008
Posts: 9
|
Thanks for all the advice!
I will check for that (coil and/or MSD trouble) in the morning!  I also have a rev limiter that was fixed to 6000 : I will check for bad connection by substitue it to a 7000 one. If someone has any other advice, feel free to tell! At least the car is running but I just can't think of going further than the stop sign on my street.... Thanks again, GQ |
||
|
09-12-2008, 06:36 PM
|
|
