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#1
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A true BioBuggy - NO D2 ALLOWED!
So my brewer goes on summer vacation and I have to fill with D2 for a few weeks.
OMG!!!! ![]() Its like I never rebuilt the cylinder head, have air leaks in the fuel lines, didnt rebuild the INJs, what a nasty smoky mess! Start up is particularly smokey. White smoke. If the IP timing is advanced, are these the symptoms you get? I no longer have a mpg/0-60 discrepancy with B100, whereas before the cyl head redo, there was a big difference, with B100 being underpwoered and only giving 31-32 mpg. Now its 33-35, and the WOT is not nearly as sluggish as it used to be. The car simply LOVES B100 I guess. On another note, the engine now consumes oil. All I did was the top end. I was pertty fastidious about vaccuming all the curd from the cylinders, I can't imagine why it burns oil now. If it had more blowby, sure, that top be expected with a fresh head, but oil consumption...???? |
#2
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What are the compression numbers now? Rings can wear out, Even with the recent top end work, valve guides/seals can still leak.
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RRGrassi 70's Southern Pacific #5608 Fairmont A-4 MOW car 13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete. 99 W210 E300 Turbo Diesel, chipped, DPF/Converter Delete. Still needs EGR Delete, 232K 90 Dodge D250 5.9 Cummins/5 speed. 400K Gone and still missed...1982 w123 300D, 1991 w124 300D |
#3
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Admittedly, the cylinder head redo was enough work, and I dont plan on another compression test until the GP's are changed out. All it can be is compression or IP. Everything else has been freshened, guides, seals, ALL new intake valves , IP's, lift pump, all lines ( no air no leaks), DV seals ( and springs and washers), rear fuel line and tank filter. It runs quite well at 80C. For now, a steady diet of B100 is the answer. Although even with B100, it still smokes a bit on startup, and, I guess misses, with a " whomp" every so often.
BTW, I could see the milling marks in the piston tops when I pulled her apart. Bio does a great job of cleaning! I'm not pulling the block for a cyl rehone at this time, just going to drive the hell out of it. I'll do the rehone if and when the 240K mile tranny craps out. |
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