glow plug reamer - pic - Page 3 - PeachParts Mercedes-Benz Forum

1983/300CD · #31 12-21-2005, 08:24 AM

Quote:

Originally Posted by dabenz

You grease the flutes to catch most of the carbon, then spin the engine with the starter to "puff" the rest out.

I've heard the "puff" method theory before, and also heard that if your engine's stroke is opening at that point instead of closing/compressing, you will suck all the carbon right in.

biopete · #32 12-22-2005, 10:10 PM

Quote:

Originally Posted by 1983/300CD

I've heard the "puff" method theory before, and also heard that if your engine's stroke is opening at that point instead of closing/compressing, you will suck all the carbon right in.

Wouldnt it just burn up?? What happens to the carbon you loosen up if you do not blow it out of the prechamber? Doesnt it just get sucked in on the next intake? Maybe it does not really matter about blowing the glow plug hole out,.

I think I saw a broken off piece of a glow plug lying down in the prechamber. Im gonna see what i can pull out of there with a magnet.

Tangent · #33 12-23-2005, 07:58 AM

Take an old bad glow plug and a dremel type-cutting wheel and cut gouges in to
the old glow plug
something like this

whunter · #34 12-23-2005, 05:57 PM

Quote:

Originally Posted by Tangent

Take an old bad glow plug and a dremel type-cutting wheel and cut gouges in to
the old glow plug
something like this

High risk of it breaking off in the head.

whunter · #35 12-23-2005, 11:22 PM

Here is one I have.
W 601 589 00 53 00

whunter · #36 10-08-2006, 09:14 PM

to answer another thread.

glow plug reamer
http://www.peachparts.com/shopforum/showthread.php?p=1298423

JamesStein · #37 10-16-2006, 08:24 PM

Further info for the browser who doesn't notice the age of this thread. (like me right before I posted this reply. Ah well, useful info anyway)

Quote:

Originally Posted by adamb

I am of the opinion that if there is enough carbon to be reamed out, then the pre-chamber should come out and be cleaned. This will not be that much more work and the results are far better IMHO.

In theory that sounds good. But the reamer is also cleaning out the head. On my 300CD I recently pulled the injectors and the pre-chambers. The prechambers were soaked for a week in carb cleaner and cleaned extensively. After I put them back in I was having diffilculty installing a glowplug so I wipped out the reamer I had also purchased. It got as much crud out as the original picture and the pre-chambers were clean as a whistle.

whunter · #38 02-07-2008, 01:34 PM

Glow Plug Reamers 917-0053 B606-0053 901-0053
http://www.peachparts.com/shopforum/showthread.php?t=183783

Diesel911 · #39 02-07-2008, 03:59 PM

Quote:

Originally Posted by Alan Hamm

What happens to the carbon that falls down inside?

If you put a heavy grease (like wheel bearing grease) in the grooves (flutes) of the reamer it traps most of the carbon in the grooves. You do need to wipe off the grease and renew the grease between doing each hole. The grease idea is in the manual.

Diesel911 · #40 02-07-2008, 04:08 PM

Quote:

Originally Posted by Kestas

The size given by Judge (12 x 1.25) and the picture lead me to believe this reamer is nearly identical to a 1/2" reamer. My Machine Shop Supply catalog lists the reamer for $13.20, though it doesn't have the threads or hex for the fingertips. If wobble (misalignment) isn't a concern, one can save some money by using a standard reamer.

The 12 x 1.25 is the size of the threaded part of the reamer not the size of the reamer bit. The threads are 12 mm with a pitch of 1.25.

Diesel911 · #41 02-07-2008, 04:09 PM

Quote:

Originally Posted by Tangent

Take an old bad glow plug and a dremel type-cutting wheel and cut gouges in to
the old glow plug
something like this

The reamer bit is fatter than the glow plug so it cuts a larger hole than the glow plug tip.

Diesel911 · #42 02-07-2008, 04:23 PM

Quote:

Originally Posted by biopete

Great. I saw that yesterday. But I need a 3 dimensional glow plug reamer.

Oh i get it, the only way the 12 makes sense is as the diameter because the units must be mm since they are not specified and the thing is obviously longer that 12 mm. Arg. I have a lot of reaming to do. Quick to the reamer rental post. Someone please correct me if i am wrong . Please . I am begging.

The 12x1.25 is the thread size of the threaded portion of the reamer.

Diesel911 · #43 02-07-2008, 04:28 PM

Quote:

Originally Posted by FrankM

it looks like the reamer could be made out of a bolt...

How will you drill the hole down the center?

Kestas · #44 02-07-2008, 05:38 PM

Anybody with access to machine tools can aim a hole down the middle of a bolt. Without machine tools it would be difficult.

I wonder what the diameter of the reamer is. Given the cost of the tool, I'd say making a homemade reamer is worth pursuing. Like biopete mentioned, why not use a drill bit?

I wouldn't obsess over any carbon that stays in the chamber. The material is soft and not abrasive, so it can't harm the surfaces as metal or dirt can.