Thread: Broken valve guide....what to do...
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Old 11-09-2013, 04:38 PM
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Join Date: Aug 2013
Location: South Central Florida
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Quote:
Originally Posted by Stretch View Post
One thing is for sure you'll be quicker the second time you do the job!

I'm thinking you might be better off with the engine swap so long as you know it is a good running engine.

Taking stuff to pieces does come with the added danger that you find something else wrong with the block.

I had exactly the same problem with my non turbo OM617. A broken valve stem just like yours =>

http://www.peachparts.com/shopforum/diesel-discussion/276144-om-617-manifold-oil.html

I attribute my busted valve stem to some kipper using normal spanners when adjusting valves - the engine had suffered from a Mercedes "expert" before I bought it - rocker arm sets were installed incorrectly...

When I pulled the head off I found that the bores were pretty badly worn too and then with the added cost of getting the head repaired it turned into a full on rebuild.
After about 6 hours of wrench turning, I've discovered I can't comply with FSM requirement to pull turbocharger unit. The front lower bolt defies any angle of attack. It is disconnected from exhaust pipe so it'll be coming out with the head. Hopefully I won't have an issue with the oil return line, I think I can get it detached.

The odd compression numbers have me believing it'll end up needing a motor anyway, and the end play in this turbo is excessive, the vanes will be rubbing the bore soon.

I still need to get the odd socket for the head bolts, line up and paint the chain/sprocket. Get the guide and tensioner out.
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