Snapped off GP, I think. W210 - Page 3 - PeachParts Mercedes-Benz Forum

Chad300tdt · #31 03-01-2008, 09:37 AM

Good luck. I watched a video that Forcedinduction posted showing a broken GP being removed using a special set of tools. It looks VERY time consuming.

Will this CDI repair tool work for a 606?

notfarnow · #32 03-01-2008, 12:44 PM

Mine failed exactly the same way last night. I am in the process of drilling & tapping it.

I'll let you know how I make out, good luck to you!

notfarnow · #33 03-01-2008, 03:43 PM

Cal, I just got mine out.

Drilled it & tapped it to 5/16, then used a threaded rod & socket as a puller.

More info and pictures here:
Finally - Step By Step Glowplug Change - '98-'99 E300!

Good luck man!

TMAllison · #34 03-01-2008, 03:49 PM

Good job.

Did you use use a jig of some sort to establish the angle for drilling or do it by eye?

notfarnow · #35 03-01-2008, 03:59 PM

Quote:

Originally Posted by TMAllison

Good job.

Did you use use a jig of some sort to establish the angle for drilling or do it by eye?

I set a GP in the hole next to it, so I could eyeball the angle. Then I started with a small bit and drilled a hole in the electrode that goes down the middle. Doing that, you can pretty much see if you are wandering.

I did make a scary mistake: busted a small drill bit in the GP. I started too small, which worked fine on the "test run" in the vise, but was harder to keep steady in the head. Taking my time, I was able to use a punch to get the remnants of the bit out, as long as I stopped drilling every 15-30 seconds. With that in mind, I wouldn't start with anything smaller than a 11/64 bit

A jig would be a really great idea. maybe we could get someone to fab them up. I'd certainly buy one, just to have handy. They wouldn't be much good for scenarios like Muleers or mine where the head broke off, because you have to eyeball teh angle to get the threaded "neck" out. That's tricky.

But for the more common situation where the threaded portion comes out, leaving the body behind, a jig would be ideal. You could screw it into the GP hole, and run a drill bit down inside... nice & straight.

I'd pay $50 for one, easy

muleears · #36 03-01-2008, 07:55 PM

Mine was scheduled to be removed with a "tool" another individual had found and bought for $400. His car had a broken plug too. I have not yet seen the tool. I will share the info on it when I have it. If it works well it may not be a bad idea for 8-10 of us to buy one as a group.

We did not get to my GP's today. We were doing the belt tensioner pulley first and broke two allen sockets trying to get the pump pulley off. I will continue my saga tomorrow, wish me luck.

notfarnow: my 210 has a greasecar kit and is running great (except the plug of course)! I used the three valve setup not the standard two valve.

TMAllison · #37 03-01-2008, 09:29 PM

Cal - What are you doing to your tensioner?

I've done mine a time or ten and have got it down so that I can pull the belt, tensioner pivot arm and associated peripherals and put it all back together in 45 minutes start to finish.

muleears · #38 03-02-2008, 08:27 PM

The bushing on the pulley is bad. The problem right now is the allen on the water pump pulley. Didn't get to work on it at all today. I'll have to drive the 87 to work.