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#1
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Power on Hills
Since the end of last summer, I have noticed that my 1984 300SD running on SVO has lost power on Hills. I now have to go in the truck lane on hills. I have not seen a great loss in acceleration off the line, but that was never great. I do not see much of a difference between running on SVO or standard diesel. Standard Diesel seems to give me marginally better performance. Gleaning though the threads I have seen a number of suggestions:
I have already done the following: 1. Replace Fuel Filters 2. Replace Fuel Lines 3. Replaced Filter screen in Original Main tank. I still have the problem. I am looking to try the following: 1. Clean Banjo fitting 2. Run a diesel purge 3. Adjust ALDA - from the other discussions this may not be related to Power on hill progblems. 4. Adjust valves. 5. Adjust timing chain. Any other suggestions.
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1984 300 SD running SVO |
#2
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Replace air filter.
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Tony from West Oz. Fatmobile 3 84 300D 295kkm Silver grey/Blue int. 2 tank WVO - Recipient of TurboDesel engine. Josephine '82 300D 390kkm White/Palamino int. Elizabeth '81 280E, sporting a '79 300D engine. Lucille '87 W124 300D non-turbo 6 cylinder OM603, Pearl Grey with light grey interior Various parts cars including 280E, 230C & 300D in various states of disassembly. |
#3
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The two thing that I did that you did not cover that had a major positive impact was replace the injectors, I used rebuilts, and I had my tech set the injector pump timing.
Understand, I have a non-turbo model. The before photo had me slowing down to about 45 mph up long steep hills. Now, on the same hills I only slow down to 55-60 mph. JCD |
#4
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I would suggest...
1. Clean Banjo fitting. 2. Check boost line to ALDA (and fittings) for leaks.] 3. Check/adjust valves. 4. Adjust timing chain. Actually, check and adjust Injector Pump timing... 5. Run a diesel purge. Quote:
Best Regards, Jim |
#5
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Thanks for your input. I will also see about checking the timing chain. I did change the air filter, and saw some improvement, but nothing to write home about. I will look into replacing the injectors if the other adjustments do not work out. Thanks again.
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1984 300 SD running SVO |
#6
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Quote:
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Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche |
#7
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Quote:
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1984 300 SD running SVO |
#8
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N/A engine means "Naturally Aspirated"...as in it doesn't have a turbo. But I would think that yours does have a turbo, unless someone put a non-turbo engine in that car....in which case it'd be pretty slooow.
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-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#9
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Quote:
Yours does have a turbo so it is not n/a. The post #3 is n/a. |
#10
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One thing I would check is coking of the nozzles or buildup. A byproduct I heard from any residual animal fats left in the wvo. Makes sense if you think of it at nozzle end temperatures when operating. You have five little barbeques in action and burnt fat occuring. The good is it should be easy to clean them up from time to time. Maybe as simple as removing and soaking in a chemical bath. The wvo guys should know about this if true. Not sure if diesel purge is the right chemical for burnt on animal fats but do not really know. Let us know when you have your power back and how you did it. looking to change one of my cars over at some point as well.
Last edited by barry123400; 06-15-2005 at 06:28 PM. |
#11
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Thanks for all your help.
I already cleaned the banjo fitting, and I saw a major improvement. I will move on to check the next items on my list.
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1984 300 SD running SVO |
#12
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Hey,
cleaning the injectors is on my to do list but I noticed an improvement when I installed a woodruff key. I determined about 4 1/2 to 5 deg stretch. I added a woodruff key part #621 991 04 67 for correction of 4 deg at crank. I was supprised at how much of a difference this made. I would do this before messing with injector pump timing. Danny
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1984 300SD Turbo Diesel 150,000 miles OBK member #23 (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination |
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