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#1
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Injector Sizes [SOLVED]
I have bought new injectors for my n/a 1980 300d and am starting to remove and replace them. However, the 1-1/16 socket that fits the new injectors is too small for the old ones. Everything I have read says that the injectors are the same size on all the 617 engines, and I bought the new ones specifically for my engine number. I don't want to go buy a new socket and yank them just to find out I need different size crush washers, etc. Do I have the wrong injectors?
Last edited by littleduck; 05-01-2007 at 09:46 AM. |
#2
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The size is the same afaik but the pop pressure is certainly different.
__________________
http://superturbodiesel.com/images/sig.04.10.jpg 1995 E420 Schwarz 1995 E300 Weiss #1987 300D Sturmmachine #1991 300D Nearly Perfect #1994 E320 Cabriolet #1995 E320 Touring #1985 300D Sedan OBK #42 |
#3
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1 1/16" fits an '85 300D Injectors......
I thought all of the injectors were the same physical size on all 617.xxx motors.....but not all deepwell sockets clear the spigots (for lack of a better word) that the leak-off lines connect to......
SB
__________________
Diesels: '85 300D, "Max, Blue Benz", 155K, 27.0 MPG '84 190D 2.2, "Eva, Brown Benz", 142K, 40.2 MPG '77 240D (parts car) '67 Eicher ES 202 Tractor "Otto" (2cyl, Air Cooled, 30HP) Gassers: '94 Ford F-150, "Henry", 170K (300 Six) 17.5 MPG '85 190E 2.3, 148K....Parts Car '58 Dodge W300M Powerwagon (Flat Fenders) Less than 10 MPG |
#4
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Those inj's really take a 27mm (1.0630") socket vs the 1.0625" you are attempting to use. It is a "very" small difference.
Perhaps the inside of your socket has debris in it and needs to be cleaned out?
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Terry Allison N. Calif. & Boca Chica, Panama 09' E320 Bluetec 77k (USA) 09' Hyundai Santa Fe Diesel 48k (S.A.) |
#5
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hmm. get an open end wrench and verify what size the body of the injectors are. should be the same. 1-1/16 deep should work on all injectors, but actually, they make a socket that has grooves in it for clearance of the return line fittings.
John
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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! |
#6
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Quote:
Your 1 1/16 socket is a metric equivalant of 26.9875mm, slightly small, but it should be OK unless the old ones are slightly oversize due to grime or rust or something. Maybe try fitting a 27mm or 1 1/16 open-end on one of them for size so you can see what exactly is obstructing?
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'83 300DTurbo http://badges.fuelly.com/images/smallsig-us/318559.png Broadband: more lies faster. |
#7
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I have a 27mm deep socket and I used a air die grinder to cut out the slots for the return line pipes. it worked well.
__________________
All it takes for evil to prevail is for good men to stand by and do nothing. Too many people tip toe through life, never attempting or doing anything great, hoping to make it safely to death... Bob Proctor '95 S320 LWB '87 300SDL '04 E500 wagon 4matic |
#8
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They were the right injectors.
It turns out that the shoulder on the inside of the socket was interfering with the return line nipples. Squeezing them a little with pliers helped get the socket on. I was a little disappointed because I bough the socket specifically from one of the well-known diesel mechanics online and it was supposed to work without problem. I think I bought some of the last injectors on earth, they all seem to be sold out now. I bought them from Autohauz for $38/piece and they have totally eliminated my nailing issues. I am taking my first road trip today from Cincinnati to Nashville and am interested to see how my mileage is now. Duane |
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