how do you remove the pin in the timing chain guid?
 

How do you remove the pin in the timing chain guide that is attached to the cylnder head? Are there special tools to do it and where can i get them? Or is there another way to do it?

Thanks in advance

you dont
 

say what model, but the last one i did took a small bolt with a 10mm head which i removed from the thermostat houseing. that combined with a stack of washers and nuts did the job.

tom w

Find a long bolt that will thread into the pin then use a nut screwed on the bolt before screwing into the pin. You stack a larger nut or washer stack between the pin and the fitted nut. You then just jack the pin out by holding the nut and turning the bolt.

You also can buy some really nice pullers that do the same thing for $50 or more. Your choice.

Good luck,

sorry
 

sorry i left that out. it is on a 1991 MB 300E

I used the bolt and washer method recently. On the last pin, the bolt broke in the pin, then the easy out broke in the bolt....major blood pressure rise. I would set it up the same but use some kind of threaded puller to pull on the bolt head instead of using the threading force of the bolt. Auto zone rents (for free) some universal pullers that clamp on well to bolt heads.

The chance of breakage can be greatly reduced if you use a long enough bolt for good thread engagement, lube the threads with a neversieze compound, and iterate in small enough steps by stacking washers under the head of the bolt.

I used a slide hammer. Screw it in and one pull and she is out! Only problem is getting the slide hammer in there with the head still bolted down. Unless of course the radiator is removed first!

broken bolt
 

Hi,

I broke an M6 bolt off in my 79 300D's pin last weekend. Yep, that makes the blood pressure rise. I didn't use anti seize grease so I couldn't pull the broken screw out. I ended up drilling in through the back of the cast iron head (thank God the OM617 head is shaped like an L).

My mistake was my washer stack wouldn't sit flat on the head and the bolt got bent and then snapped. I have the funny head with the load leveler pump flange that makes it very tough to get a flush mount on the surface of the head with the washers.

I wish I had the special MB puller. My slide hammer was too long to get in there unless I took out the radiator which now seems like not such a bad thing.

Put the whole thing back together and patched the hole with that grey epoxy putty. Seems to hold.

Cheers,
Yoko