What Steve and I are up to...

[Funrover]

UH oh.... what happened?

[scout man]

Burned up the icm

[Patrolman]

Ouch!

[scout man]

yea, it was a successful shake-down run. I shook down a couple issues! First off, I burned up another ICM. I think the issue is that the heat sink is too close to the engine block, and instead of dissipating the heat from the ICM, its absorbing heat from the block and feeding it into the ICM. Up until the point where I burned it up though, I was absolutely thrilled with the performance with the fuel injection. Josh drove me into town to get a new ICM (or two), and when I popped it in everything worked just fine again. Since I had a spare anyways, we decided to keep going up the hill a bit. On the way back down I dropped off a rock kind of hard (but not THAT bad) and the engine shut off. I couldn't get the fuel pump to kick in again. Long story short, we screwed around with it for a while and couldn't accomplish anything, so I rolled down the trail in neutral (with josh pulling on the up hills) until I hit a tight switch back that we were struggling with. Finally I hit the ignition again for the 30th time, and it fired right up! Got through the switch back and noticed the engine was coming and going with bumps, so I stopped to inspect it. Turns out my positive battery cable pulled out of the clamp on my primary battery! It was occasionally making contact and firing up. Hooked it back up and drove it to the trailer!! So there are a few things I noticed on this run other than the obvious: I no longer have a temperature gauge, since the sensor now goes straight to the computer... need to fix that. ICM needs to be moved to a new location. Need more spare parts, since when the modules go out there isn't a damn thing you can do about it. Also need to find a way to raise my idle a bit. It is way too low and causes problems at times. At the end of the day though it was actually a good run. The scout did great other than the problems identified, and those are all correctable!

[scout man]

I was exhausted from yesterday, so I didn't do much today, but I did get the ICM relocated on a new heat sink. I really think this should solve that problem once and for all! First picture: ICM used to mount on that piece of aluminum, right above all those holes, and practically on the block. Second picture is the new heat sink, which was stolen from an external hardrive enclosure or some thing. I don't know Josh had it in his rig yesterday and donated it. Away from heat with a massive heat sink. I suspect it should stay nice and cool!

[Patrolman]

Glad that it all worked out and that it performs well. I have a spreadbore for my 345 which I have always intended to put on it, but this has caught my interest.

[scout man]

It is definitely worth it Jeff. The performance on the trail yesterday was night and day compared to the carb. Even with the problems I had to work through still, it was definitely worth it. I would say I am $800 or so total for the conversion. I definitely have a better idea now of how this all works, and could probably help you get yours done in a weekend or two.

[Haku]

scout man previously posted: