Search found 8 matches

by jaykvb
Tue Feb 23, 2010 9:50 pm
Forum: Operation
Topic: 89 RRC 3.5 LPG. New MJ install, cold start and backfires.
Replies: 8
Views: 9312

I was thinking the same thing, that maybe the backfire is due to wasted spark. I know my gas set up is running extremely rich at the moment, so on startup I was thinking unburnt gas it being ignited on the exhaust stroke of the wasted spark cylinder.. Just a thought... I have shelved the MJ for now,...
by jaykvb
Mon Aug 24, 2009 1:41 am
Forum: Operation
Topic: 89 RRC 3.5 LPG. New MJ install, cold start and backfires.
Replies: 8
Views: 9312

Hello All. I found that my trigger wheel was 2 degrees out, so I adjusted for this in the MJ. Then I set the cranking advance to 10. The static of the dizzy was set to 8, and it used to start on gas 99.99 of the time without backfire. On EDIS and MJ, it just doesn't want to start when cold on lpg. I...
by jaykvb
Wed Aug 12, 2009 12:01 pm
Forum: Operation
Topic: 89 RRC 3.5 LPG. New MJ install, cold start and backfires.
Replies: 8
Views: 9312

Hello. Thanks a lot for the help. The maps will be very helpful. I have always been able to start on LPG, with only a very rare backfire. With the EDIS and MJ it seems every time I crank I will get a backfire. I am using second hand Ford leads, I will swap for new ones to rule out the leads. I will ...
by jaykvb
Mon Aug 10, 2009 10:20 am
Forum: Operation
Topic: 89 RRC 3.5 LPG. New MJ install, cold start and backfires.
Replies: 8
Views: 9312

Tonight after work, I thought I would try starting the car cold. After 5 or 6 serparate tries at cranking, it would not fire. The cranking advance is set to in MJ. I then removed the MJ and tried with EDIS only. The car started second try,and sat at a rock solid 10 degrees. Or maybe 9, it is a bit h...
by jaykvb
Sun Aug 09, 2009 12:46 pm
Forum: Operation
Topic: 89 RRC 3.5 LPG. New MJ install, cold start and backfires.
Replies: 8
Views: 9312

89 RRC 3.5 LPG. New MJ install, cold start and backfires.

I spent this weekend finishing the wiring and making a mount for the coil packs. The engine started perfecting first turn of the key. When the engine is warm, I have found that i get quite of a log of backfires on LPG when cranking. This has led to a few blown off hoses. I set the cranking advance t...
by jaykvb
Sun Jun 28, 2009 11:44 pm
Forum: Operation
Topic: Testing my assembly. Is 100KPa with no hose attached correct
Replies: 2
Views: 3055

Great.. I was hoping it was going to be a stupid question.

It shows my lack of understanding of Kpa, but if you don't ask you may never find out.

Thanks...

John.
by jaykvb
Sun Jun 28, 2009 7:26 am
Forum: Operation
Topic: Testing my assembly. Is 100KPa with no hose attached correct
Replies: 2
Views: 3055

Testing my assembly. Is 100KPa with no hose attached correct

Ok. I built the kit today and all seems to work ok. Except I have one question which I am hoping is a stupid one. If the MJ with MAP sensor is powered up on a bench and connected to my computer. What should the Load be measuring. My unit is reading 100Kpa with no vacuum applied... If I attach a hose...
by jaykvb
Tue Jun 16, 2009 7:21 am
Forum: Ignition Map Library
Topic: Rover 3.9 V8 Ignition map. Please!
Replies: 3
Views: 11204

Hello All,

I am looking for a known Good Megajolt map for a rover 3.9, for both Pertol and LPG.

The engine is stock, with a LPG mixer/carb as opposed to gas injection.

I will be running MAP not TPS.

Can anyone help me out.

Regards,

John.