'07 CRD with stripped glowplug - JeepForum.com

 
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post #1 of 12 Old 03-20-2017, 07:19 PM Thread Starter
RixCRD
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Location: Newport, RI
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'07 CRD with stripped glowplug

Hi all.

Before you ask, yes, I searched the forum.

So, I had a fault on #1 cylinder glowplug. I grabbed my handy-dandy spare glowplug, and started to change it out. Came out difficult.

I went to install the new one, and it seemed to be going in pretty easy. It built a touch of resistance, then, *poof*, not enough resistance. Inspection revealed aluminum head threads were stripped.

<insert long chain of expletives>

So, I cannot be the first to have this happen to them in the 10 years of these things.

I know I can put something in the hole to prevent debris from getting to the engine, drill out, re-tap, and add an insert, but I need the specifics for hardware, threads/inch (CM), diameter for drill, specific tap.

I suspect that someone here has that info.

I'm not trusting this to the Jeep dealership (with the CRDs, they cannot find their butts, even if you gave them a technical manual, a compass and detailed instructions).

The MB dealership won't touch it because the *vehicle* isn't an MB. (insert insult to local MB dealership here).
Also, no way in heck can I afford either....

Help a brother out with info hook-ups?
Anything I can get on Amazon is a plus, because I have a couple of Amazon gift cards...


'07 WK Limited CRD
GDE ECO Tune
241 HP, 440 TQ, 23.5 average mpg
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post #2 of 12 Old 03-20-2017, 09:13 PM
btburn
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I had a stripped thread where the previous owner had a heli-coil poorly installed. I ended up bringing it to a sprinter specialist here and he was able to repair it wit a time-sert without removing the head. he had a special set of jigs that lined up a drill perfectly then he inserted the time-sert and reamed the glowplug hole. Mine was the #6 plug and that ended up costing me almost $2000 including the updated glow plug module.
I'd check your area for a sprinter shop. If you take it to Jeep they will want to charge you to remove the head and send it to a machine shop. and will cost quite a bit more.
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post #3 of 12 Old 03-20-2017, 09:34 PM Thread Starter
RixCRD
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Yeah, $2K is well out of my price range.

I'm trying to find the right tools, tap & die, and threaded insert to be able to do this replacement myself. If I have to spend $100-$200 in parts equipment, that I can afford.

Oh, and the Sprinter dealership here IS the Mercedes Benz dealership. I cannot even get those <censored> to return my calls or emails.

'07 WK Limited CRD
GDE ECO Tune
241 HP, 440 TQ, 23.5 average mpg
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post #4 of 12 Old 03-21-2017, 06:04 AM Thread Starter
RixCRD
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Sorry for what I am about to do. I received a PM on this topic, and apparently I cannot reply until I have a post count of 15 or greater. At 10 with this message.

'07 WK Limited CRD
GDE ECO Tune
241 HP, 440 TQ, 23.5 average mpg
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post #5 of 12 Old 03-21-2017, 06:04 AM Thread Starter
RixCRD
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Sorry for what I am about to do. I received a PM on this topic, and apparently I cannot reply until I have a post count of 15 or greater. At 11 with this message.

'07 WK Limited CRD
GDE ECO Tune
241 HP, 440 TQ, 23.5 average mpg
RixCRD is offline  
post #6 of 12 Old 03-21-2017, 06:05 AM Thread Starter
RixCRD
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Sorry for what I am about to do. I received a PM on this topic, and apparently I cannot reply until I have a post count of 15 or greater. At 12 with this message.

'07 WK Limited CRD
GDE ECO Tune
241 HP, 440 TQ, 23.5 average mpg
RixCRD is offline  
post #7 of 12 Old 03-21-2017, 06:06 AM Thread Starter
RixCRD
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Sorry for what I am about to do. I received a PM on this topic, and apparently I cannot reply until I have a post count of 15 or greater. At 13 with this message.

'07 WK Limited CRD
GDE ECO Tune
241 HP, 440 TQ, 23.5 average mpg
RixCRD is offline  
post #8 of 12 Old 03-21-2017, 06:06 AM Thread Starter
RixCRD
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Location: Newport, RI
Posts: 16
Sorry for what I am about to do. I received a PM on this topic, and apparently I cannot reply until I have a post count of 15 or greater. At 14 with this message.

'07 WK Limited CRD
GDE ECO Tune
241 HP, 440 TQ, 23.5 average mpg
RixCRD is offline  
post #9 of 12 Old 03-21-2017, 06:07 AM Thread Starter
RixCRD
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Sorry for what I am about to do. I received a PM on this topic, and apparently I cannot reply until I have a post count of 15 or greater. This post makes 15. Sorry for spamming my own thread...

'07 WK Limited CRD
GDE ECO Tune
241 HP, 440 TQ, 23.5 average mpg
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post #10 of 12 Old 03-21-2017, 02:39 PM
btburn
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Quote:
Originally Posted by RixCRD View Post
Yeah, $2K is well out of my price range.

I'm trying to find the right tools, tap & die, and threaded insert to be able to do this replacement myself. If I have to spend $100-$200 in parts equipment, that I can afford.

Oh, and the Sprinter dealership here IS the Mercedes Benz dealership. I cannot even get those <censored> to return my calls or emails.
You will not be able to get it lined up accurate enough to get a good seal on the glow plug seat. The threads don't seal the chamber pressure, its the angled portion near the tip that seals it. If you don't seal it you may shoot a glow plug through your hood. If I had just brought it in before installing a KeySert type insert to try to fix then it may have been less. If you mess it up and you then have to have the head pulled you will be in for even more out of pocket.

If you can get your hands on the very expensive jig that bolts to the engine and lines everything up then maybe but from what I understand it is about $2000 for the proper tools.

If you want to attempt it yourself I have an almost new glow plug thread repair and stuck glow plug removal set that I'll sell for a good price.I went another route in may attempt and everything is there and new except one tap I used to clean threads with.
It's this one: https://www.amazon.com/Qbace-Removal...+plug+tool+set

Good luck
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post #11 of 12 Old 03-21-2017, 02:44 PM
btburn
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Oh yeah, to keep debris from entering the cylinder get some bees wax and press it firmly in the hole before you work then when you are done you can blow out what is loose and use a dental tool to get the rest. I hammered the tip of some tig wire to make a little sharp edged spoon so I could scrape the slivers from the wax. When all the junk is out then you can just take a hot wire and melt the wax and get a small diameter nylon bore brush to scrub it after. Any wax that drips into the cylinder will just burn off.
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post #12 of 12 Old 03-21-2017, 04:56 PM Thread Starter
RixCRD
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Location: Newport, RI
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Thanks for the beeswax tip. I had been considering a length of lightly oiled cotton cord, about the width of the hole.

As for the tooling, I went with this one: http://www.ebay.com/itm/222380856045

This set is self-guiding for alignment. Or it appears to be. If it doesnt work out, I'll consider more pricey alternatives.

'07 WK Limited CRD
GDE ECO Tune
241 HP, 440 TQ, 23.5 average mpg
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