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  #136  
Old 04-15-2012, 12:20 PM
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Biodiesel as solvent

Yes, agree with using bio rather then petroleum based. I have not taken anything apart yet, but is it feasible to soak inside of Plug with biodiesel? Will it damage to the head/cyl/rings? Would imagine best to vacuum out an crank to expel as much as possible.

Any thought on worth it or not to try this? On the flip it may actually make matters worse. It may loosening up the carbon weld/build up which secures the gp tip to the head. If the gp breaks at the thread. When you drill out to remove, the tip may fall into the head .

I also agree heat/expansion works in your favor. Do you prep the intake manifold before warming up? Loosen the lower intake hose bolt prior to heating up engine? Try to minimize the amount of work needed to take of manifold once engine is warm/hot. Any suggestions to prep removal steps prior to warming up engine? Or, do you just remove the intake as normal when engine is hot/warm?

Thanks in advance.
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  #137  
Old 04-16-2012, 02:52 PM
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I get it good and hot from a trip and then start taking things off. You need to be a little careful of the hot engine, but it actually turns out to be pretty painless pun intended.
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  #138  
Old 04-16-2012, 05:36 PM
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If you have not broken the glow plug yet:
Get a 40 ft/lbs 3/8" drive torque stick.
Use it with a low power impact wrench, air or electric.
Soak the thread area with penetrating oil. Keep soaking it down for overnight or a day or two if you have the time.
If you can run the engine up to temp, that will also help.

Apply the impact wrench, using the torque stick to limit the torque. 40 ft/lbs should be low enough to not break off the plug or ruin the nut. Keep it up for as long as it takes. Some will take over an hour.

When I first read about the procedure I bought the torque stick. Fortunately I have never needed it. The person who wrote up the procedure had use this method on every stuck plug in a 606 that he encountered. He claims that he never broke the glow plug and he got every one out.

Ken-tool Item # 30256

KEN-TOOL 3/8" DRIVE 40 LB. TORQUE LIMITING EXTENSION - NEW - MADE IN USA | eBay

Home - Rownetco, Inc.
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2012 S350 BlueTEC 4Matic
2007 ML 320 CDI
2007 Leisure Travel Serenity
2006 Sprinter 432k
2005 E320 CDI
1998 SLK230 (teal)
1998 SLK230 (silver)
1996 E300D 99k, 30k on WVO
Previous:
1983 240D, on WVO
1982 300D, on WVO
1983 300CD, on WVO
1986 300SDL 237k, 25k on WVO (Deerslayer)
1991 350SDL 249k, 56k on WVO - Retired to a car spa in Phoenix
1983 380 SEC w/603 diesel, 8k on WVO
1996 E300D 351k, 177k on WVO

2007 ML320 CDI .. / 2005 E320 CDI .../ 1998 SLK 230 .../ 1991 Daihatsu Rocky
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  #139  
Old 04-17-2012, 12:36 AM
Jeremy5848's Avatar
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Tool

Quote:
Originally Posted by GregMN View Post
If you have not broken the glow plug yet:
Get a 40 ft/lbs 3/8" drive torque stick.
Use it with a low power impact wrench, air or electric.
Soak the thread area with penetrating oil. Keep soaking it down for overnight or a day or two if you have the time.
If you can run the engine up to temp, that will also help.

Apply the impact wrench, using the torque stick to limit the torque. 40 ft/lbs should be low enough to not break off the plug or ruin the nut. Keep it up for as long as it takes. Some will take over an hour.

When I first read about the procedure I bought the torque stick. Fortunately I have never needed it. The person who wrote up the procedure had use this method on every stuck plug in a 606 that he encountered. He claims that he never broke the glow plug and he got every one out.

Ken-tool Item # 30256

KEN-TOOL 3/8" DRIVE 40 LB. TORQUE LIMITING EXTENSION - NEW - MADE IN USA | eBay

Home - Rownetco, Inc.
Greg, any idea how this thing works? Looks like nothing more than an extension.

Jeremy
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Our all-biodiesel family
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  #140  
Old 04-17-2012, 01:36 AM
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Quote:
Originally Posted by Jeremy5848 View Post
Greg, any idea how this thing works? Looks like nothing more than an extension.

Jeremy

Think of the torque stick as a spring. When you approach it's designed torque limit, it will start to twist/flex and thus limit torque applied to the fastener. They only work on impact wrenches as they depend on the hammering effect to twist/release/twist/release. If you use a normal ratchet, then they would not limit torque and act as a socket extension.

They are mostly frowned upon for any real use in regards of torque, one should never use them as a method to torque a fastener. They are best used to snug lug bolts or fasteners at a torque threshold below what is needed to do a final torquing with a proper torque wrench. Example, use a 80ft lb torque stick to snug up lug bolts and then come back setting final torque with a wrench to 95ft lbs etc.

For this application, they could be a great way to "hammer" safely on the glow plugs while keeping the torque below a threshold which might damage the plug.
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  #141  
Old 04-17-2012, 07:21 AM
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So it seems like one could you a cordless screw gun with a normal extension if the torque was set to less than 40 lbs.
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  #142  
Old 04-17-2012, 12:10 PM
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Quote:
Originally Posted by Bio300TDTdriver View Post
So it seems like one could you a cordless screw gun with a normal extension if the torque was set to less than 40 lbs.
You need the repeated hammering that a impact wrench provides. Constant pressure at 40 ft/lbs will do nothing. I don't think that your cordless driver is going to last for an hour or more if that is what is needed.
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2012 S350 BlueTEC 4Matic
2007 ML 320 CDI
2007 Leisure Travel Serenity
2006 Sprinter 432k
2005 E320 CDI
1998 SLK230 (teal)
1998 SLK230 (silver)
1996 E300D 99k, 30k on WVO
Previous:
1983 240D, on WVO
1982 300D, on WVO
1983 300CD, on WVO
1986 300SDL 237k, 25k on WVO (Deerslayer)
1991 350SDL 249k, 56k on WVO - Retired to a car spa in Phoenix
1983 380 SEC w/603 diesel, 8k on WVO
1996 E300D 351k, 177k on WVO

2007 ML320 CDI .. / 2005 E320 CDI .../ 1998 SLK 230 .../ 1991 Daihatsu Rocky
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  #143  
Old 04-17-2012, 01:06 PM
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Quote:
Originally Posted by GregMN View Post
You need the repeated hammering that a impact wrench provides. Constant pressure at 40 ft/lbs will do nothing. I don't think that your cordless driver is going to last for an hour or more if that is what is needed.
True my cordless drill doesn't hammer like an impact driver (I have both), but it will run for an hour and it does mimic the hammering when the torque is set. I have used it in that manner to back out screws that would not come out. I have a second battery with a 30 minute charger, so run time is not an issue.

As I understand the procedure you wouldn't want to run it for an hour anyway. You get the car hot, quickly pull the intake and then ratchet for a few minutes. Squirt PB Blaster or the cutting agent of your choice and then come back and ratchet on them for a few more minutes and repeat until they come out.

Having said that, I have an OM603 and have never had to do any of that. I would be happy to come over and lend my cordless screw gun to any member in the area with stuck glow plugs.
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  #144  
Old 04-17-2012, 02:19 PM
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Quote:
Originally Posted by Bio300TDTdriver View Post
As I understand the procedure you wouldn't want to run it for an hour anyway. You get the car hot, quickly pull the intake and then ratchet for a few minutes. Squirt PB Blaster or the cutting agent of your choice and then come back and ratchet on them for a few more minutes and repeat until they come out
That may work. But in the procedure that I read, they applied the impact wrench continuously until the glow plug came out. They claimed that it always worked.

BTW, we are taking about glow plugs in a 606, not a 603. Very different.
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2012 S350 BlueTEC 4Matic
2007 ML 320 CDI
2007 Leisure Travel Serenity
2006 Sprinter 432k
2005 E320 CDI
1998 SLK230 (teal)
1998 SLK230 (silver)
1996 E300D 99k, 30k on WVO
Previous:
1983 240D, on WVO
1982 300D, on WVO
1983 300CD, on WVO
1986 300SDL 237k, 25k on WVO (Deerslayer)
1991 350SDL 249k, 56k on WVO - Retired to a car spa in Phoenix
1983 380 SEC w/603 diesel, 8k on WVO
1996 E300D 351k, 177k on WVO

2007 ML320 CDI .. / 2005 E320 CDI .../ 1998 SLK 230 .../ 1991 Daihatsu Rocky
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  #145  
Old 04-17-2012, 03:07 PM
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OM606

Quote:
Originally Posted by 95m3ltw View Post
Think of the torque stick as a spring. . . .



For this application, they could be a great way to "hammer" safely on the glow plugs while keeping the torque below a threshold which might damage the plug.
Thanks, Greg. Now that I have two 606s I'll have to keep it in mind. So far I've had to remove only two glow plugs. One took a little care and the other was 603-easy.

Jeremy
__________________

"Buster" in the '95

Our all-biodiesel family
1995 E300D (W124) . .239,000 miles My car
1996 E300D (W210) . .313,000 miles Wife's car
Santa Rosa population 170,685 (2012)
Total. . . . . . . . . . . . 722,685
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970
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  #146  
Old 04-17-2012, 03:12 PM
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Quote:
Originally Posted by GregMN View Post
That may work. But in the procedure that I read, they applied the impact wrench continuously until the glow plug came out. They claimed that it always worked.

BTW, we are taking about glow plugs in a 606, not a 603. Very different.
Yes that is why I mentioned that I have a 603. I'm familiar with the difference. My glow plugs always come out and don't break off.

"Having said that, I have an OM603 and have never had to do any of that. I would be happy to come over and lend my cordless screw gun to any member in the area with stuck glow plugs."
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Be careful of the toes you step on today, as they may be connected to the ass you have to kiss tomorrow. anonymous

“Be who you are and say what you feel, because those who mind don’t matter, and those who matter won’t mind.” Dr. Seuss
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  #147  
Old 04-17-2012, 03:25 PM
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$40 Lifesaver: 3/8" Close Quarters Drill with Keyless Chuck

I always removed & reinstalled my 617's GPs every winter just to be careful. When I was reworking the head this winter I broke off two even though they were less than a year old and had antisieze. Bosch brand.
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  #148  
Old 04-18-2012, 05:24 PM
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Quote:
Originally Posted by GregMN View Post
Get a 40 ft/lbs 3/8" drive torque stick.
Unless the engine is out of the car, and the ip is removed, and the oil filter housing is removed, there is not enough room to allow for a torque stick, deep socket and impact driver. Sorry. There is JUST enough room for a 3/8 drive ratchet and a deep well socket. The little electric tool pictured above will NEVER work on a stuck 606 glow plug. It may work on a 606 plug that isn't really stuck.
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  #149  
Old 04-22-2012, 02:46 AM
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I wonder how burning biodiesel all the time helps keep the carbon cleaned off the glowplug tip? Im not an owner of one of these cars yet but am about to be. Im just a member now researching and learning. I am buying one because I have been making biodiesel for a couple of years and running it in my 1999 7.3 Ford SuperDuty. I would think running bio through the combustion chamber for a few months might actually help getting the glows to come out a bit easier. Just my thought. Ok, carry on.
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