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#1
05-22-2010, 09:16 PM
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300Sd Woes! need advice
I have a 84 300SD________around 260K on it...The chain looks like it has been replaced.
I have been driving the car to the tune of aorund 1100 miles since I got it going. My question is__I pulled the injectors today to put some Monarks in ONLY to discover that my homemade pop tester has two pin holes and won't pump up... SO I thought what the heck I have done this before without popping on my wagon__________ I polished the surfaces and put them back together, adjusted the valves, changed the oil, AND pulled the fuel pressure spring out and measured it and it was 21mm______SO I pull it out to 26mm and put it back togther! *started it up and got a knocking noise that sounds bad almost like a rod knock/rattle! ANY IDEAS? I am going to pull the valve cover back off tomorrow and double check underneath/valves etc>>> then I am going to put the spring back to 21mm____IN case I got to much fuel pressure NOW! THE Only other thing that I can think of____Is I put something upside down in one of the injectors! PERHAPS that little piece that goes under the spring towards the nozzle (it has a stud on both sides one short & one long with a taper)....then there is the flat piece and the nozzle!
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1982 300SD 1984 300SD 1990 Chevrolet Suburban 4x4- 6.2L diesel Banks Turbo 1984 Chevrolet 4x4 M1008- 1 1 /4 ton, 4.56's, 6.2L 49K, NOW sporting a performance built 700r4 overdrive. Sold 82 240d 81 240d 83 300Td 84 300D turbo 
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#2
05-23-2010, 04:47 PM
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You must be very careful
Really, hear me on this. Those little injectors have a lot of "thought" put into their construction, and those little dudes don't take kindly to any part of them being put in upside down. Better fix that up pronto. It's great that the chain looks so good. Keep up the good work and try hard to eliminate any knocking sounds.
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Junqueyardjim Christianity, if false, is of no importance, and if true, of infinite importance. The only thing it cannot be is moderately important. C.S. Lewis 1983 Mercedes W123 240D 4 Speed 285,000 on the road with a 617 turbo, beautiful butter yellow, license plate # 83 240D INDIANA 2003 Jaguar Type X, AWD. beautiful, good mileage, Mom's car, but I won't let her drive it!
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#3
05-23-2010, 06:22 PM
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If you put that little Injector Piece in wrong and torqued it sometimes it breaks the upper end of the pintel off.
While the Engine is ideling and knocking go down the line of the Injectors 1 by one and loosen the Injector Hard Line Nuts, want few seconds and tighten one and go to the next. When you loosen the nut on the one and the Knocking stops that is the bad Injector. I have seen dirt get inside of an Injector and hold the Pintel up and that will also cause it to knock.
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84 300D, 82 Volvo 244Gl Diesel
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#4
05-23-2010, 06:42 PM
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Quote:
A little JB Weld on the inside would likely solve the pin hole problem. When I installed Monarks, my pop pressures changed. Good Luck, Joseph
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