Hi all,
I'm in the process of cleaning my injectors and re-tightening them due to leaks. Injectors 1 & 2 are done; now when I got to #3 I saw a lot of gunk in the chamber where the injector is inserted. It took a bit of an effort to take the heat shield out. I want to take this chamber off to be able to immerse it in break cleaner, as I see that it is screwed into the block itself; is this doable? And is there a special tool that I need to get or how do I take it out without damaging it? Anybody done this before? Since I don't know the exact name, and different sources name it differently, I could not find a reference to it in a search...
I attached an image of what I'm talking about.

As always, thanks for any inputs

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__________________
[/SIGPIC]~cirrusman

1983 Mercedes Benz 300SD - Wife calls him "Chitty Chitty Bang Bang"
[SIGPIC]




1983 Toyota Tercel (Tommy, The little Toyota that could)
1965 Ford F100 (Grandma Ford)
2005 Toyota Sienna (Elsa, Wife's ride)


Gone:
1988 Toyota Pickup
2004 Subaru Outback

1987 Cadillac Fleetwood Brougham
1986 Volvo 740 GL Station Wagon - Piece of junk.
1981 Volvo 242 DL 2 Door - Hated to see it go. R.I.P.
1987 Pontiac Fiero GT

What Engine are the Tools For?
If you want to see what the Tools look like Fastlane sells them and I guess Pelican Parts sells them.

Yes, there is 2 special Tools you will need.

1 Tool to remove the Retaining Collar (there is 2 different Tools; one for the collar with 2 slots and another for Splined Collars).

1 Tool used in conjunction with a Slide Hammer to pull the Prechamber out (You need to know what the Prechamber Tool is threaded for inside so you can find a Slide Hammer to fit or and Adapter). (Besure to remove the Glow Plugs before pulling the Prechamber or you will damage both.)

Also when you pull the Prechamber it scrapes off a lot of crap off of the nose of the Prechamber as it comes out and that falls down into the Cylinder.
If the Piston is at top dead center as in the below pic it lays there and if with the Glow Plug out you can stick a Vacuum Cleaner over the hole and it will suck it out; at lest that worked for me.

The other pic is of a Slide Hammer hooked to a homemade prechamber puller. This Prechamber Puller is threaded for the Free Rental Autozone Slide Hammer.

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__________________
84 300D, 82 Volvo 244Gl Diesel

It's an OM617... '83 300SD. Looks like it's no easy task... Thanks for your response! Maybe I'll do less damage if I take the whole head off and clean it...

__________________
[/SIGPIC]~cirrusman

1983 Mercedes Benz 300SD - Wife calls him "Chitty Chitty Bang Bang"
[SIGPIC]




1983 Toyota Tercel (Tommy, The little Toyota that could)
1965 Ford F100 (Grandma Ford)
2005 Toyota Sienna (Elsa, Wife's ride)


Gone:
1988 Toyota Pickup
2004 Subaru Outback

1987 Cadillac Fleetwood Brougham
1986 Volvo 740 GL Station Wagon - Piece of junk.
1981 Volvo 242 DL 2 Door - Hated to see it go. R.I.P.
1987 Pontiac Fiero GT

Actually pulling the Prechambers is a straight forward Job if you have the right Tools.

Removing the Cylinder Head offers you a chance to mess up your Engine and Fuel Injection Pump Timing.
Besides the expense of a new Gasket set and Coolant I believe you need to replace the Head Bolts.
The cost of the Gasket set and Head Bolts is entirely lost.

When you pull the Prechambers each Prechamber has an Aluminum Crush washer that needs replacing and you need the Tools.
So you lose the cost of the Crush Washers but when you are done you still have the Tools.
The if you keep the Tools you can use them later if you want to pull the Prechambers and Clean them, you could sell the Tools and recover some of the Money you spent on them; or, you could offer them in the Forum Tool Rental Program.

The last comment is not mine but from the mechanically inclined Father of a Neighborhood Kid I grew up with. "People who tinker with their Cars have more trouble with them than people who just fix them".

__________________
84 300D, 82 Volvo 244Gl Diesel

just another reminder to remove glow plugs first, or have some spare glow plugs before you start.......

__________________
1977 240D turbo

Yeah, you're probably right; after staring at the engine for about 1-2 minutes I decided that that probably wouldn't be the best route to take... I probably will end up either removing the pre-chamber, or maybe plugging the hole really well and then just filling the pre-chamber with brake cleaner and leave it for a couple of hours, then wipe the grime out and re-install the injector...

__________________
[/SIGPIC]~cirrusman

1983 Mercedes Benz 300SD - Wife calls him "Chitty Chitty Bang Bang"
[SIGPIC]




1983 Toyota Tercel (Tommy, The little Toyota that could)
1965 Ford F100 (Grandma Ford)
2005 Toyota Sienna (Elsa, Wife's ride)


Gone:
1988 Toyota Pickup
2004 Subaru Outback

1987 Cadillac Fleetwood Brougham
1986 Volvo 740 GL Station Wagon - Piece of junk.
1981 Volvo 242 DL 2 Door - Hated to see it go. R.I.P.
1987 Pontiac Fiero GT

For prechambers, carb or throttle body cleaner will do a much better job than brake cleaner. Neither would requre long-term exposure.

__________________
When cryptography is outlawed, bayl bhgynjf jvyy unir cevinpl.

Brje nfy deot mscj. (Thank you very much, encrypted)

__________________
[/SIGPIC]~cirrusman

1983 Mercedes Benz 300SD - Wife calls him "Chitty Chitty Bang Bang"
[SIGPIC]




1983 Toyota Tercel (Tommy, The little Toyota that could)
1965 Ford F100 (Grandma Ford)
2005 Toyota Sienna (Elsa, Wife's ride)


Gone:
1988 Toyota Pickup
2004 Subaru Outback

1987 Cadillac Fleetwood Brougham
1986 Volvo 740 GL Station Wagon - Piece of junk.
1981 Volvo 242 DL 2 Door - Hated to see it go. R.I.P.
1987 Pontiac Fiero GT