Injectors? - Page 2 - PeachParts Mercedes-Benz Forum

autozen · #16 05-15-2002, 09:48 AM

Mccan,
You'll need a special 27mm deep socket. If you use a plain old deep socket, you'll break all the little return line connectors off. Just loosen the line at the noozle end and bend it out of the way.
Don't worry about ruining the line; I'll bet MB has never sold a set of those lines.

Peter

#17 05-15-2002, 10:50 AM

Where do I find the correct deep well 27mm socket?

autozen · #18 05-15-2002, 10:58 AM

Check with Fastlane,MB dealer, Or a snag a professional tool truck when you see one stopped at a shop.

Peter

h2odiesel · #19 05-15-2002, 07:24 PM

To pull injectors I use a Craftsman 1 1/16" deep well socket, I have never broken a return nipple. This socket will also fit the bolt on the front of the crankshaft. When doing the cylinder drop test I mentioned above, all you need to do is just barely lossen the nut at the injector while the engine is idling. A little fuel will come out. The shims I'm looking for are inside the injector. To disassemble the injector put the top half with the two flats in a vice an use the socket you used for removal to seperate the two halfs. The shim looks like a small washer and set the pre load ont the spring that holds down the pintel. If you can come up with a bunch of nozzles cheap at the u-pull-it let me know.

tcane · #20 05-15-2002, 08:08 PM

h2odiesel:

Fast Lane sells the shims for $0.13 each, 5 sizes 1.15-1.85mm.

mccan:

You want a 12 point 27mm deep socket. Many places sell this size (try finding a 12 point 30mm deep socket - no go, go find a pro tool truck or order it online from tool stores like Ontool). As I recall Sears has this socket in the metric tool section. I have a Snap-On 12 pt. 27mm deep socket and I've used it to R&R my injectors several times without problems, as well as using it on the crankshaft bolt to turn the engine. There is nothing special about my Snap-On 27mm socket, so any other well made 12 point 27mm deep socket should work fine without damaging the return line nipples on the injectors.

Good Luck!
Tom

tcane · #21 05-15-2002, 08:22 PM

Greg:

Forgot to mention that I probably have a spare metal fuel line for #1 cylinder that I can be persuaded to part with!

!

Tom

#22 05-15-2002, 09:24 PM

Tom,

Thanks. I have had a major pain of a time just finding a 14mm hex wrench for changing the diff. oil. I'll be going to Home Depot tomorrow. Hopefully they will have both. At the least I would settle for a 14mm hex head on a bolt and the deep well 27.

JohnM · #23 05-15-2002, 11:12 PM

I picked up my 14mm hex at Tool Town for about $14. Expensive, but as tight as these need to be it works better than my 14mm socket.

autozen · #24 05-15-2002, 11:14 PM

Tom,

It sounds like the Snap On socket will do the trick, but I would be cautious about using any old deep socket. Once you break those return line connectors off, you've not only ruined the injector, you now don't even have a core.

Peter

Billybob · #25 05-16-2002, 05:36 AM

Auto Zone has a package with a 12 MM , a 14 MM, and a 17MM for $8!

tcane · #26 05-16-2002, 11:43 AM

mccan:

I don't know if Home Depot will have the 27mm socket or 14mm allen wrench. I was thinking more along the lines of Sears and then auto parts stores (I've seen the 27mm at Pep Boys (they sell Stanley tools along with cheap imports) and know NAPA will have it, then probably O'Reilly (they stock Challenger tools) would probably have it - don't know about other parts stores. I would be cautious about using the no-name tools usually made in Taiwan or China - I've seen some that worked OK and others that were not worth a glass of warm spit!

Auto Zen:

I wrote that any "well made 12 pt. 27mm deep socket should" work to let others know that cheap 27mm sockets would probably not and cause damage - at least that was what I was trying to get across. Sears, Challenger, Proto, Stanley, and other tools similar to these should work provided the socket is deep enough meaning the socket needs to be checked to make sure it engages the nozzle's hex portion enough to ensure a good grip to R&R the nozzle and not contact the nozzle nipples because if the socket walls do contact the nipples the socket will not easily slide down to engage the nozzles hex portion (my Snap-On 27mm needs to be wiggled a bit to center it on the nozzle so it slides over the nipples, I would assume any other 27mm deep socket would require a bit of wiggling to center it to slide over the nipples and engage the nozzle's hex portion). I consider Sears, Challenger, Proto, and Stanley tools to be mid-level quality tools that are more than adequate to do repair work, and I own/use examples of all of them along with my Snap-On/Stahlwhile/Mac tools. I looked at the Performance Products catalog and their "special" 12 pt 27mm deep socket to R&R injector nozzles (and it "may" be used on the crankshaft bolt according to PP - a dual purpose "special" tool!) looks like a standard Stahlwhile socket and PP sells it for $23.63 (ouch!). Your point is well taken that a cheap socket should be avoided because of the possible damage that can be done to the nozzle rendering it unuseable - my point exactly in my original reply although not expressly stated in those specific terms.

Good Luck!
Tom

h2odiesel · #27 05-16-2002, 06:08 PM

Not that it matters that much but 1 1/16" is equal to 27 mm (1 1/16" = 1.0625"= 26.999mm). So if you happen to see that 1 1/16" 12pt Deep well Craftsman grab it, the injectors and crank bolt will never know the difference.

#28 05-16-2002, 06:19 PM

mccan:
I sent you the pictures of the injectors. Take a look at your e;mail on the forum. I think each picture is a seperate picture. Are you going to pressure check these yourself?