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#1
12-06-2010, 11:10 AM
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Injector lines, procedure?? Glow plugs etc.
Is there a procedure when re-installing injector lines?
Do I tighten at the pump first and then at the injector or doesn't matter. Also, did the glow plugs over the weekend. Had to take the intake and injector lines off to get to them. Now the engine seams "louder" then before. Starts right up, but the sound on idle is different. One of the glow plugs did not want to thread all the way in as well..  Thank you Martin
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1986 300GD, G-wagen with OM617A 1988 250GD, G-wagen with OM602A 
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#2
12-06-2010, 11:53 AM
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Since it's running again, I guess you have the injector lines back in place. To answer your question, it doesn't matter which end of each line you tighten first BUT it IS important that you get the fittings on both ends of a line started on their threads before tightening either of them. After all are tightened THEN tighten the clamps between the lines.
If it doesn't sound the same, you may very well have a leaking manifold or even that loose glow plug could be making noise. You should pull that glow plug and clean the threads, then rethread it and tighten. If you don't have a tap, you can clean the threads by taking one of your old glow plugs, the cleanest threaded one you can find, and file some notches lengthwise with a three corner file. Use this as a thread chaser. Whenever they are not threading easily with a wrench, don't force them. Clean the threads first. Hope this helps.
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#4
12-06-2010, 01:18 PM
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another reason the GP's may be having issues is carbon build up in the chamber.
a member on here is selling home built reamers for removing the carbon.
__________________
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 560SL convertible 1987 190D 2.5-5SPEED!!!  1987 300TD 2005 Dodge Sprinter 2500 158"WB 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#5
12-06-2010, 01:27 PM
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It will sometimes take a highway run to get all of the air out of the lines, noisy till then.
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 Gone to the dark side - Jeff
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#6
12-06-2010, 06:15 PM
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I had the same problem when I removed the hard lines to inspect my glow plugs. Air is introduced to the system. The engine sounded so bad, I thought I had somehow damaged it. It took me two or three tries, at cracking the injectors, a couple of days apart, to bleed all the air out. It finally quieted down.
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1987 300D 146K Original #14 Head One eye on the road, the other on the temp. gauge Gone But Not Forgotten 1983 380 SEL Long gone 1983 300SD Wish I hadn't traded it in on a 90' Corvette 1989 300SE My all time favorite 1995 E420 Went like a bullet
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#7
12-07-2010, 10:22 AM
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Quote:
Yes, the sound is very mechanical. Thank you.
__________________
1986 300GD, G-wagen with OM617A 1988 250GD, G-wagen with OM602A
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#8
12-07-2010, 10:28 AM
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crack them at idle. I start at the rear of the motor and work my way forward one at a time.
__________________
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 560SL convertible 1987 190D 2.5-5SPEED!!! 1987 300TD 2005 Dodge Sprinter 2500 158"WB 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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