Use a torque wrench to remove them. If you get past 70nM then take a break and start thinking about penetrating oil and heat.

How much in ft.lbs. is 70nM?

WC

52 ft lbs.

Use penetrating oil a few days in advance, then warm engine immediately before attempting to remove. You can run it with the IM off; will smell a bit but be OK.

GO SLOW.

__________________
Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

70 Nm is about 51.5 ft.-lbs. Try this site for converting useful units:

http://iconvert.meatarian.co.uk/

Jim

__________________
Own:
1986 Euro 190E 2.3-16 (291,000 miles),
1998 E300D TurboDiesel, 231,000 miles -purchased with 45,000,
1988 300E 5-speed 252,000 miles,
1983 240D 4-speed, purchased w/136,000, now with 222,000 miles.
2009 ML320CDI Bluetec, 89,000 miles

Owned:
1971 220D (250,000 miles plus, sold to father-in-law),
1975 240D (245,000 miles - died of body rot),
1991 350SD (176,560 miles, weakest Benz I have owned),
1999 C230 Sport (45,400 miles),
1982 240D (321,000 miles, put to sleep)

6 fresh glow plugs - check
Glow plug reamer - check
new intake manifold gasket - check
JJ Cale box set - check
big bag of chips, ginger beer & whiskey - check

Wish me luck boys, I'M GOING IN!

__________________
Jake
1999 e300d PlantDrive WVO/SVO conversion
**note to self: oil changed at 268k kms**
1990 Toyota 4Runner FrankenDiesel swap

Well, rather than luck, just never put too much torque on it, that always is the fatal flaw of over enthusiastic owners.

Keep us posted.

__________________
raMBow

1999 E300DT Obsydian Black Metallic, Heated Full Leather Parchment options, E2, K2, 136,000+, best 36.5 mpg - GP's 12-04 & 11-12 Zero Stuck
2010 Honda Odyssey - The BrideMobile - best 26.5
(2) 2005 Honday Accord- (1 -Corporate 1 - Personal) - 110,000 4-cyl 30mpg
2000 VW Golf GLS TDI, Upsolute Chip (sold to Brother, now 300+k on it) 48.5 mpg like clock work
1987 Honda CRX HF - Sold 87,000 always over 50 mpg Max 67 mpg

Good point. I've read about a dozen spooky threads here, so I am sufficiently spooked and wary. My arsenal also includes penetrating oil, a torque wrench, and anadjustable cordless impact driver.

I have teh heebie jeebies though. Back in a couple hours!

__________________
Jake
1999 e300d PlantDrive WVO/SVO conversion
**note to self: oil changed at 268k kms**
1990 Toyota 4Runner FrankenDiesel swap

That little 5 mm allen bolt that holds the intercooler pipe to the EGR valve was a BA$TARD. Spent an hour on that.

Have the IM off though. The moment of truth....

__________________
Jake
1999 e300d PlantDrive WVO/SVO conversion
**note to self: oil changed at 268k kms**
1990 Toyota 4Runner FrankenDiesel swap

Well, if you have the patience to spend an hour on the 5mm allen on the EGR valve, then maybe I need not worry about ham-fisted wrenching on the GP's.

Good Luck!

__________________
raMBow

1999 E300DT Obsydian Black Metallic, Heated Full Leather Parchment options, E2, K2, 136,000+, best 36.5 mpg - GP's 12-04 & 11-12 Zero Stuck
2010 Honda Odyssey - The BrideMobile - best 26.5
(2) 2005 Honday Accord- (1 -Corporate 1 - Personal) - 110,000 4-cyl 30mpg
2000 VW Golf GLS TDI, Upsolute Chip (sold to Brother, now 300+k on it) 48.5 mpg like clock work
1987 Honda CRX HF - Sold 87,000 always over 50 mpg Max 67 mpg

Ha, you spoke too soon. I managed to bust #4 off.

Numbers 1, 2 & 3 came out slick & easy. #4 was a bit stiff, but not nearly as much as #5 & #6. They all moved though, and I worked them slowly back & forth using penetrating oil. Leaning on the side of caution, I never went over 35 ft/lbs. I figured if I could keep them wiggling at that torque, I'd be all set. I took turns on those 3, giving each one a couple back & forths, then to the next one. I was working on other things, so I'd just do it every 5-10 minutes so the metal wouldn't get hot.

Of those 3, #4 was the one that was moving best. Then, it just busted off at 30 ftlbs. And it busted off at the head, leaving the shouldres still threaded in. Ba$tard.

Anyway, I've drilled out the threaded portion of the GP, and unwound the steel threads from the aluminum head. Threads still look OK. Now I need to drill & tap the GP body, and pull it out.

I can now see that they had previous trouble with that GP. The "nub" around the hole is a little beat up, and the threads are not quite "right" at the top. Looks like someone had crossthreaded one and then gone back to fix the threads. I don't know how you could crossthread one though.

Anyway, I have to find that thread where the guys shows how to make a puller. Fun stuff.

__________________
Jake
1999 e300d PlantDrive WVO/SVO conversion
**note to self: oil changed at 268k kms**
1990 Toyota 4Runner FrankenDiesel swap

Found it!

http://alan.mcreynolds.googlepages.com/howtoremovebrokenglowplugs-mercedesom606

and
E300TD glow plug stuck/broken

this will be fun

__________________
Jake
1999 e300d PlantDrive WVO/SVO conversion
**note to self: oil changed at 268k kms**
1990 Toyota 4Runner FrankenDiesel swap

Can you tell what brand the one which broke off was?

__________________
Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz

I vaguely recall a thread stating a particular brand of GP was beefier, I was thinking it was Beru, or was it the Bosch.

notfarnow - if you can give us the brand we may be further along diagnosing how others should proceed.

And sorry.

__________________
raMBow

1999 E300DT Obsydian Black Metallic, Heated Full Leather Parchment options, E2, K2, 136,000+, best 36.5 mpg - GP's 12-04 & 11-12 Zero Stuck
2010 Honda Odyssey - The BrideMobile - best 26.5
(2) 2005 Honday Accord- (1 -Corporate 1 - Personal) - 110,000 4-cyl 30mpg
2000 VW Golf GLS TDI, Upsolute Chip (sold to Brother, now 300+k on it) 48.5 mpg like clock work
1987 Honda CRX HF - Sold 87,000 always over 50 mpg Max 67 mpg

Thanks for the replies and support guys.

I was pretty much in shock when that one broke off, I wasn't even at 35 ft lbs. The only theory I have is that the threads were messed up (see previous post) and they may have ham-fisted it in there last time, weakening the "neck" of the GP.

The one that broke was a Beru with the mercedes benz logo on it. According to the records that came with the car, they were changed at the dealership by the PO 2 years ago.

I guess the good news is that it's a pretty easy one to get at for drilling and tapping. I think I'll make it OK.

As a cranky old buddy of mine used to say:
Gotta be an optimist, especially when the whole damn world is against you!

__________________
Jake
1999 e300d PlantDrive WVO/SVO conversion
**note to self: oil changed at 268k kms**
1990 Toyota 4Runner FrankenDiesel swap

wohoo!




Probably one of my happiest DIY moments ever

I have lost A LOT of hair over the past 12 hours

Attached Thumbnails

   

__________________
Jake
1999 e300d PlantDrive WVO/SVO conversion
**note to self: oil changed at 268k kms**
1990 Toyota 4Runner FrankenDiesel swap