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#1
11-07-2011, 09:45 PM
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ahh, so I caused the problem
So, it turns out I unknowingly caused a fuel restriction (and low power) by buying cheap generic prefilters instead of the only slightly more expensive correct one. Fuel passage was about 1/3 the size in the generic filter. Finally bought the right one and behold, the slumbering beast woke up! Went from zero smoke to rolling coal! I love it!
Anyone else chase their tails looking for a problem they didn't even know they caused?
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1982 300sd, new project car to restore It doesn't matter if you know what you're doing, as long as you look like you know what you're doing. 
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#2
11-07-2011, 09:58 PM
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what filter was to small?
__________________
1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg
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#3
11-07-2011, 10:15 PM
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And what were the symptoms? Was there another thread describing the problem?
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1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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#4
11-08-2011, 10:17 AM
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this is a great post... if only it was on the end of a problem thread.
is this on your car with the transmission woes, or another issue? I'd like a bit of backstory on what you've done to find this problem please! thanks.
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!!  1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#5
11-08-2011, 04:47 PM
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I have had this happen if a cheap prefilter is used. In my case, the paper element in the prefilter collapsed, probably under the suction of the lift pump. I learned just how much the lift pump can suck. The symptoms were very similar to a blocked filter. Light throttle ok, trying to go up hill would soon run out of go. I guess that is what the OP was experiencing. Probably needs the strainer cleaning as well.
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Grumpy Old Diesel Owners Club group I no longer question authority, I annoy authority. More effect, less effort....  1967 230-6 auto parts car. rust bucket. 1980 300D now parts car 800k miles 1984 300D 500k miles  1987 250td 160k miles English import  2001 jeep turbo diesel 130k miles  1998 jeep tdi ~ followed me home. Needs a turbo. 1968 Ford F750 truck. 6-354 diesel conversion. Other toys ~J.D.,Cat & GM ~ mainly earth moving
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#6
11-08-2011, 04:53 PM
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interesting - maybe I have a similar situation, just for me as life serves it would be the tank strainer. I cant get my car to blow out smoke even at full pedal, engine at full song.
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2012 BMW X5 (Beef + Granite suspension model) 1995 E300D - The original humming machine (consumed by Flood 2017) 2000 E320 - The evolution (consumed by flood 2017)
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#7
11-08-2011, 05:55 PM
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Nobody beats the fun I had due to the ignorance of an aftermarket primary:
http://www.peachparts.com/shopforum/diesel-discussion/254261-sdl-fuel-issues-trip-hell.html It's a good read..........although you already know the outcome.
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#8
11-08-2011, 06:08 PM
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... I always use wix...
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#9
11-08-2011, 10:15 PM
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Bought the car this summer, my first turbo diesel, last one had no turbo. Remember commenting that i could really feel the car take off when the turbo kicked in on the road test. Buy the car, service it and a bunch of "post car purchase" maintenance (fuel pressure regulator etc).
Not really impressed with the performance anymore. Low power, hills were a nightmare, drive it as is. Search the forum, start to look for more performance. Tweak the alda, no smoke, further tweaking, no smoke, max it out, still no smoke, no performance gains either. Further reading revealed people are getting much longer than I am on my fuel filters. Assume the micron rating was too fine causing a restriction and premature plugging. Purchase the CORRECT filter, compare the two, this is where I find the inside diameter of the spigots on the correct filter are 3x that of the incorrect one. One interesting note is the incorrect filter was actually quite a bit larger in overall diameter.
__________________
1982 300sd, new project car to restore It doesn't matter if you know what you're doing, as long as you look like you know what you're doing.
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#10
11-08-2011, 10:30 PM
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who made the "incorrect" filter? how about the "correct" filter?
__________________
1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg
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#11
11-09-2011, 07:39 AM
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yeah, got any pics of the problem one compared to the correct one?
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#12
11-09-2011, 10:04 AM
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You were lucky to run it down quickly. It is a given installing a new filter one does assume it is not a problem and looks elsewhere.
As mentioned post the brand of the bad one if possible so members can avoid them.
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#13
11-09-2011, 10:50 AM
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Quote:
__________________
85 300D turbo pristine w 157k when purchased 161K now 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked
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#14
11-09-2011, 11:06 AM
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Also not sure what you mean by spigots. A spigot is a vent plug or a faucet fitting.
Did someone sell you the inline vacuum system filter in place of the fuel prefilter? I only ask as I actually saw one installed on a car (in place of the fuel prefilter) in a pick and pull once.... Either that or it's something like the old inline filters used on carbureted engines. I had a Volvo 142 with dual SUs that used an inline filter very similar in appearance.
__________________
 Mac 2002 e320 4matic estate│1985 300d│1980 300td Previous: 1979 & 1982 & 1983 300sd │ 1982 240d “Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22
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#15
11-10-2011, 08:00 PM
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The filter was a generic off the shelf universal clear plastic inline filter. by spigots I'm talking about the barbs, nipples, whatever you want to call them.
__________________
1982 300sd, new project car to restore It doesn't matter if you know what you're doing, as long as you look like you know what you're doing.
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