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Hello, sorry to bother you,
i have a pair of gillig 35 foot schoolbuses with rear cat 3208s. I am on a caravan www.sustainablesolutionscaravan.org driving on straight vegetable oils through central america from california to costa rica. the engines run great and make incredible power for their size and efficiency. I have a few questions i could use help with, important ones first.
1. The engines smoke on idle at high altitudes.. biodiesel, veggie or diesel so its not a fuel problem. i fixed this on my vw vanagon diesels but turning down the overall fuel delivery with a screw on the fuel pump. How do I do this on the 3208? i see a small 3/8 nut on top on the pump...
2. Where is the cheapest place to get the shop manual? is it difficult to time the pump(i like to advance the timing slightly for better veggie burning.. ie:.86mm to.96mm on a vw diesel can eliminate the slight haze on cold idle)? difficult or tedious to remove injectors for testing and cleaning?
3. The first bus has a better EGR setup than the other.. it sends some crankcase gases to the intake like a normal diesel.. the other engine just has a tube coming of the valve cover pointing down below the engine.. it blows a steady stream of smoke that mechanics say is normal but as an ecologist annoys me. it looks like the intake and valve cover setup are all that is needed to upgrade the EGR... Is this possible? where can i score these parts?
thank you for your time,
ryan grace. |
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