LBZ: Smoking at idle and strong fumes
- Thread starter blackdirtymax
- Start date
If i plug the lmm in it starts perfect and idles clean but how would you clean it up for like 32* and colder starts? Its alot colder here lol
I also bumped the glowplug time up before start and it helped a little and ive raised rail at idle
I also bumped the glowplug time up before start and it helped a little and ive raised rail at idle
Plug it in the heater and that should go away for the most part. When you start getting into the 30-40 temps it will not want to start. It is the low compression that causes this. Have you done a compression test to see where you are? My first built motor was at 15.98/1 ans it was really bad when cold out. This time I went back up on compression to 17/1. You can up the idle pressure and it cab help some but it will not stop doing it.
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K what was your psi on comp test with your 15.98-1? Ill do that an see if it's arpund that i wanted the machine shop to cut them to just 16.5/1 basically stock gor the lbz-lmm trucks i dropped my truck to that and mine will start till bout 19* then it has to plugged in to start and not miss and sputter 
I did the same stuff with the glow plugs and rail pressure
Built motor , duel fuelers , 60's overs , gtx4202r
Mine are 15:1 and did the same. After around 30 k we had to change the rings. Since then Mark made some changes in the tune and it seemed to help .
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