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#1
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Width of GP reamer
I was wondering if someone with a glow plug reamer could measure the exact diameter of the reaming portion of the tool. I figure its got to be a little bigger than the end of a GP. I'd like to just use a drill bit to ream out my holes when I relplace my plugs and bypass the expensive "unitasker". I've done some searching on the forum but I haven't found any exact sizes. Could you also include the car that your GP reamer is suited for. Thanks
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'85 300td Frybrid WVO Kit |
#2
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diameter of GP reamer
I found that a 5/16 drill bit is too big and the one smaller 19/64 was fine. Of course there is only room to use a drill bit on a couple of them. So I made my reamer from a steel rod that diameter (19/64")about 4 inches long, bent it 90*in the middle and ground a few flutes cut in the sides for and inch or so with a dremel cut off wheel. It worked perfectly. (why I didn't just heat a 19/64s" drill bit in the middle and bend it, ?? I'm not sure)
My PGs had tested good, but 4 out of 5 were a bit hard to get out they were so clogged with carbon and I think all 5 were shorting out. I haven't started it yet as I'm rechecking cam chain stretch and valve settings.... but got interrupted with a pile of paying type work.... Reality rearing it's head, maybe tonight.
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Thanx, Alberta Luthier 1983 300CD ('Stinky')155k miles, 2.47 diff, EGR removed, AAZ injectors with 265 nozzles from Sean,and vogtland lowering springs. 1984 300SD ('Old Blue')150k Klicks from Japan originally, came with rear head rests, no sunroof and never had an EGR |
#3
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I just match up a drill bit to the diameter of the long shank of the glow plug below its thread and it worked perfectly every time I changed glow plugs on anyone of my diesels. Low tech... but it works good enough to remove carbon! Then work an old glow plug in an out with some anti-seize on the threads to make sure its clear before putting in the new one.
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FRED Daily Driver: 98 E300TD 199K Hobby Car: 69 Austin Mini Past Diesels: 84 300SD, 312K 87 300SDL, 251K 94 Chev. K-1500 6.5Ltr.TD, 373K Last edited by F18; 02-25-2008 at 10:21 PM. |
#4
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Quote:
Another question: If using a drill bit to ream the hole, do you need to worry about drill bit going in too deep and damaging anything. If so could someone give some suggestions about the max depth.
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'85 300td Frybrid WVO Kit |
#5
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Quote:
The drill bit does not have to be a perfect fit...just near to the size of the glow plug shank/shaft and not the electrode tip. Good Luck
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FRED Daily Driver: 98 E300TD 199K Hobby Car: 69 Austin Mini Past Diesels: 84 300SD, 312K 87 300SDL, 251K 94 Chev. K-1500 6.5Ltr.TD, 373K |
#6
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Here is what I did when I took out my GPs. I took out the bad one and found it stiff. So I went around and took them all out. A couple more were stiff. Cleaned them throughly before I put them in again.
Reaming. Well, I took the glow plug and went to Wal*Mart. Matched up the tip with a gun bore brush and went just a hair bigger. The reamer you buy can only be so wide till it can't go thru the hole. The gun bore brush can be larger since it can bend to go in and fluff out when it gets to the other side. After reaming, I crank the engine over a bit and blow out the carbon debris if there was any.
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01 Ford Excursion Powerstroke 99 E300 Turbodiesel 91 Vette with 383 motor 05 Polaris Sportsman 800 EFI 06 Polaris Sportsman 500 EFI 03 SeaDoo GTX SC Red 03 SeaDoo GTX SC Yellow 04 Tailgator 21 ft Toy Hauler 11 Harley Davidson 883 SuperLow |
#7
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Quote:
John
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Certified Registered Nurse Anesthetist (CRNA) 2002 F250 powerstroke with Plantdrive WVO conversion 1983 300SD 190K miles ,sold 2006 E320 CDI |
#8
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How would that work better than a gun bore brush? Just curious.
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01 Ford Excursion Powerstroke 99 E300 Turbodiesel 91 Vette with 383 motor 05 Polaris Sportsman 800 EFI 06 Polaris Sportsman 500 EFI 03 SeaDoo GTX SC Red 03 SeaDoo GTX SC Yellow 04 Tailgator 21 ft Toy Hauler 11 Harley Davidson 883 SuperLow |
#9
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Does the gun bore brush carve out the hard carbon deposits? I thought gun bore cleaning also involved using solvent to soften residues. The fluted reamer actually carves out the carbon.
John
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Certified Registered Nurse Anesthetist (CRNA) 2002 F250 powerstroke with Plantdrive WVO conversion 1983 300SD 190K miles ,sold 2006 E320 CDI |
#10
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You can do it dry too. My point is that the fluted reamer can carve out carbon only as large as the bore it goes into. The brush can be spun around in the hole and is larger in size than the bore since it can bend to go in and expand when it gets out of the hole.
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01 Ford Excursion Powerstroke 99 E300 Turbodiesel 91 Vette with 383 motor 05 Polaris Sportsman 800 EFI 06 Polaris Sportsman 500 EFI 03 SeaDoo GTX SC Red 03 SeaDoo GTX SC Yellow 04 Tailgator 21 ft Toy Hauler 11 Harley Davidson 883 SuperLow |
#11
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I guess if you're really curious, try the brush first and then the reamer on the first port. Then do the opposite on the next port. Not a controlled study but it might satisfy your curiosity as to which, if either, does a better job. If a brush was better, wouldn't MB have designed one for use in their cars? John
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Certified Registered Nurse Anesthetist (CRNA) 2002 F250 powerstroke with Plantdrive WVO conversion 1983 300SD 190K miles ,sold 2006 E320 CDI |
#12
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I would agree that doing this in combination would supplement each other and do an extremely very good job in cleaning.
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1983 123.133 California - GreaseCar Veg System |
#13
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They also designed the 722.6 which was said to be lifetime fill. I tend not to take the word of MB as the final word. Sure, they have a say but I don't take them as the be all and end all.
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01 Ford Excursion Powerstroke 99 E300 Turbodiesel 91 Vette with 383 motor 05 Polaris Sportsman 800 EFI 06 Polaris Sportsman 500 EFI 03 SeaDoo GTX SC Red 03 SeaDoo GTX SC Yellow 04 Tailgator 21 ft Toy Hauler 11 Harley Davidson 883 SuperLow |
#14
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Another trick I used yesterday while changing the GPs was injecting some Diesel Purge through each GP port into the prechamber. I let it sit for a couple of hours before starting up. This idea came to me after viewing the pics posted on the forum of the clogged prechambers in that broken motor.
http://www.peachparts.com/shopforum/showthread.php?t=214643 Not sure if it helped, but the SD starts up easily now! John
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Certified Registered Nurse Anesthetist (CRNA) 2002 F250 powerstroke with Plantdrive WVO conversion 1983 300SD 190K miles ,sold 2006 E320 CDI |
#15
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can someone confirm this statement is correct (I don't mean to disrespect you F18). I was under the impression that the area that needs to be reamed surrounds the electrode not the shank.
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'85 300td Frybrid WVO Kit |
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