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  #1  
Old 06-27-2007, 06:24 PM
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cracked cylinder head 617????

Has anyone seen this yet?

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99 E300 TURBODIESEL Astral Silver 282K - AMG brakes, suspension, monoblocks, speedo & interior - Full Load Maxed on IP by custom Speed Tuning USA Chip - T3/T4 Garrett - EGR/MAF delete
98 E300 TURBODIESEL Alexandrite Green on black leather 289K
95 E300 DIESEL Green Queen 267K SOLD
84 300D 216k SOLD
87 300D 299K #22 head - intercooler - full load adj. - 8sec 0-60mph - SOLD
76 300D 214K SOLD
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  #2  
Old 06-27-2007, 06:55 PM
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not me...
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  #3  
Old 06-27-2007, 07:01 PM
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My understanding is that while it is possible and has occurred somewhere, somehow, it is very very rare.
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  #4  
Old 06-27-2007, 09:49 PM
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Yep.
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  #5  
Old 06-27-2007, 09:52 PM
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The head is coming off and I will post the verdict.
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99 E300 TURBODIESEL Astral Silver 282K - AMG brakes, suspension, monoblocks, speedo & interior - Full Load Maxed on IP by custom Speed Tuning USA Chip - T3/T4 Garrett - EGR/MAF delete
98 E300 TURBODIESEL Alexandrite Green on black leather 289K
95 E300 DIESEL Green Queen 267K SOLD
84 300D 216k SOLD
87 300D 299K #22 head - intercooler - full load adj. - 8sec 0-60mph - SOLD
76 300D 214K SOLD
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  #6  
Old 06-27-2007, 09:55 PM
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Quote:
Originally Posted by mdisav View Post
The head is coming off and I will post the verdict.
You probably won't see the crack. Have the head pressure tested to confirm.
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  #7  
Old 06-27-2007, 10:16 PM
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A cracked head on a 617? HOW???
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84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012
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  #8  
Old 06-27-2007, 10:21 PM
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Originally Posted by lietuviai View Post
A cracked head on a 617? HOW???
Just overheat one badly.........it'll crack.........there's a water jacket above the cylinder head surface............
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  #9  
Old 06-27-2007, 10:26 PM
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It will be done. Thanks Brian!
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99 E300 TURBODIESEL Astral Silver 282K - AMG brakes, suspension, monoblocks, speedo & interior - Full Load Maxed on IP by custom Speed Tuning USA Chip - T3/T4 Garrett - EGR/MAF delete
98 E300 TURBODIESEL Alexandrite Green on black leather 289K
95 E300 DIESEL Green Queen 267K SOLD
84 300D 216k SOLD
87 300D 299K #22 head - intercooler - full load adj. - 8sec 0-60mph - SOLD
76 300D 214K SOLD
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  #10  
Old 06-27-2007, 10:33 PM
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I would imagine that if you overheat one bad enough the rest of the engine would be toast as well.
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  #11  
Old 06-28-2007, 12:10 AM
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I had one. After rebuilding the entire engine, we failed to have it pressure tested. It gave way after about 300 miles. Cooling port over cylinder three gave way. Put a new head on...still have issues with the rings on the pistons in that cylinder. A lot of blow by...
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  #12  
Old 06-28-2007, 06:18 AM
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My favorite machinist bought a wagon with a bad head. The PO;s wife drove it overheated until it would not go any more. Cracked head and badly scored cylinders and whatnot.

We bought an 82 300td and shared the parts from it. He took the head. I still have some of the parts offered here for sale.

Tom W
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.
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  #13  
Old 07-03-2007, 12:28 PM
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Head is fine. It is only the gasket. The head is going to be machined and everything is going back together. Does $2800 sound high for this job? It did to me. It is at $110 an hour. That includes the entire R&R and the machining.
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99 E300 TURBODIESEL Astral Silver 282K - AMG brakes, suspension, monoblocks, speedo & interior - Full Load Maxed on IP by custom Speed Tuning USA Chip - T3/T4 Garrett - EGR/MAF delete
98 E300 TURBODIESEL Alexandrite Green on black leather 289K
95 E300 DIESEL Green Queen 267K SOLD
84 300D 216k SOLD
87 300D 299K #22 head - intercooler - full load adj. - 8sec 0-60mph - SOLD
76 300D 214K SOLD
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  #14  
Old 07-03-2007, 12:41 PM
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Quote:
Originally Posted by mdisav View Post
Head is fine. It is only the gasket. The head is going to be machined and everything is going back together. Does $2800 sound high for this job? It did to me. It is at $110 an hour. That includes the entire R&R and the machining.
It's definitely too high from an hourly perspective. R & R of the head for an experienced mechanic shouldn't be more than 12 hours. I'll bet a very good one can beat this time. The cost of the gasket set and other assorted BS is not more than $150. unless they replaced the head bolts. If so, add another $125.

The cost to rework the head by an outside machine shop should be no more than $700., including OE seals and guides, if no valves or prechambers are utilized.

So, $2000, maximum for this job. But, like any other highly technical job, they can charge more..........where else are you going to go?

It cost me about $1350. for that job with a replacement head (mine was cracked), new exhaust valves, prechambers, guides and seals, gasket set and new head bolts. Labor was free.
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  #15  
Old 07-03-2007, 12:46 PM
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R&R the head your self. Save some labor cash. What is the cost of a head from Metric Motors? May be easier to just get one from them instead of paying the fee your shop is going to charge.

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