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#1
10-26-2005, 07:41 PM
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Rusty injectors on a 617...problem?
Okay, my engine is running fine, and I don't believe I have faulty injectors....however.
They are SO RUSTY (externally), it's like they were found on a beach somewhere and then pu in my engine (most of the enine looks fine). I was wondering, could this lead to operational issues? Should I just take them out and clean them with a wire brush on the outside, or is it maybe time to get a new set. Thanks, Pete. 
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#2
10-26-2005, 07:43 PM
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Quote:
Its whats inside that counts...........unless the car is running well why pull them and then need new heat shields and return line....
__________________
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
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#3
10-26-2005, 07:54 PM
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What do the heat shields look like?...and the return line?
Sorry, still learning.
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#4
10-26-2005, 07:58 PM
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The heat shields look like washers and the return lines are very small fuel lines connected to each injector that are braided on the outside.
__________________
Seth 1984 300D 225K 1985 300D Donor body 1985 300D Turbo 165K. Totaled. Donor Engine. It runs!!! 1980 300SD 311K My New Baby. 1979 BMW 633csi 62K+++? Dead odo
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#5
10-26-2005, 08:05 PM
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Oh, that's cool then.
I just ordered those recently to replace the braided wire, and the (what I thought were washers) come with the lines. Might as well clean up the injectors if I have all the other stuff. Anybody know what the hard fuel line setup woud cost to replace on this engine? That part is rusty as well. Thanks, Pete.
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#6
10-26-2005, 08:11 PM
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How about a good used set....surely someone who frequents the pick and pulls can get you a deal...those typically never wear out.
__________________
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
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#7
10-26-2005, 08:39 PM
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Sure.
As long as there isn't a speck of rust on them. I'm trying to get rid of it in my engine bay. Guess I could do some yard hunting. Anyone know what they typically cost otherwise (thanks, BHD). Pete.
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#8
10-26-2005, 08:46 PM
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Nononononono
Quote:
 A perfect ebay line.  Those typically never wear out.  All the wear is on the inside. 
__________________
ASE Master Mechanic asemastermechanic@juno.com Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 1984 190D 2003 Volvo V70 2002 Honda Civic https://www.boldegoist.com/
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#9
10-26-2005, 09:33 PM
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Quote:
Those typicly last forever unless they either rub together and wear through or fracture... I've not heard of them wearing out before....However do please correct me if you have seen them wear out internally.
__________________
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
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#10
10-26-2005, 09:55 PM
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i personally
would not pull good working injectors for cosmetic reasons. if you cant stand the rusty look, spray them with rust binder or wd 40. you will find plenty on one of these old babes to spend your money and sweat on w/o doing things that dont need doing. you aren't going for concours are you?
my $.02 tom w
__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual. [SIGPIC]..I also have a 427 Cobra replica with an aluminum chassis.
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#11
10-26-2005, 10:00 PM
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Quote:
Leaks, stripped threads, dropping something in the injector hole , etc.....Choose your battles......
__________________
Jimmy L. '05 Acura TL 6MT  2001 ML430 My Spare Gone: '95 E300 188K "Batmobile" Texas Unfriendly Black '85 300TD 235K "The Wagon" Texas Friendly White '80 240D 154K "China"  Scar engine installed'81 300TD 240K "Smash" '80 240D 230K "The Squash" '81 240D 293K"Scar" Rear ended harder than Elton John
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#12
10-26-2005, 10:19 PM
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Thanks, guys.
I did sort of want to inspect the spray tips, but I'll take the advice and leave well enough alone....man they're rusty 
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#13
10-27-2005, 07:50 AM
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Quote:
FWIW, the 'spray tip' looks like a flat disk with a very, very, very tiny hole in it. Damage there is very bad and, unless you nave a really good reason (ie; poor performance, missing, white smoke etc) the injectors are better off left screwed into the head, where nothing can get to that area except what God and Stuttgart intended.
__________________
Never a dull moment at Berry Hill Farm.
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