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  #1  
Old 05-11-2011, 06:38 PM
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W115 240D help me weigh my replacement engine options.

I got my 240D to fire up again yesterday, needed about 75% throttle to keep it running. Things were going ok running rough but smoke diminishing, diesel purge going in. Oil pressure good, then it made a clank sound and in the time it took the thought nailing or rod sound to cross my mind it went boom. Maybe 3 seconds from clank to boom, oil pouring on the ground.


So I started contemplating / googling my options and they appear to be:

1) A used 616.916 from a 1975 240D $1200.

Pros:
1 year warranty
Free shipping
I not sure about this but the parts locator service that found it says used parts are graded by insurance company standards and this engine has a grade A rating, "Like New" compression tested.
Obviously a perfect fit
I have known good parts from my engine to swap onto this one if need be.

Cons:
All I have to go on condition wise is seller’s word.
$1200.00 seems a little high for an unknown quantity. However, far and away cheaper than any other 616.916 I inquired about. next closest $1500.

2) A local 616.912 from a w123 $500 Seller is a repair shop who bought it as a test bed for some kind of fuel injection modification but never followed through.

Pros:
Price
The engine is on a test stand with electric radiator fan and will be run for me.
I believe it has more HP than the 616.916

Cons:
Oil filter housing location and other accessory locations, not a straight drop in.
IP shuts engine down with vacuum so I am not sure how to adapt this
I would like to keep AC, not sure how to achieve that.


3) I have a w123 300D turbo motor parts car that runs.

Pros:
I already own it
HP + 4-speed manual

Cons:
Seems like quite a project
Flywheel balancing yada yada yada
Shoehorn required to install.
+ all the cons from the 616.912

4) Part it out and look for another running car.

5) Wait for another 616.916 to pop up in my area.

The car body and chassis is in nice shape, 1 of the POs put a lot of work into chasing rust and then had a really nice repaint done. The interior could be perfect pretty easily. On the down side it had a fender bender a few years back, all damage repaired before repaint but now has salvage title.

SO what are your opinions?

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Last edited by billhard; 05-11-2011 at 07:49 PM.
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  #2  
Old 05-11-2011, 07:15 PM
Craig
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Are you ruling out a reman engine? My previous 617 engine was used, and it ran well for about 150k miles; then it dropped a rod at an inconvenient time. The last time I put in a reman engine, hopefully it will run longer.
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  #3  
Old 05-11-2011, 07:32 PM
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I can't imagine the cost not 4x exceeding the value of the car. Am I wrong?
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  #4  
Old 05-11-2011, 08:13 PM
Craig
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Depends on the value of the car, you can get an engine for about $3600 plus shipping.
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Old 05-11-2011, 09:03 PM
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Do you see yourself with this car for many years if it had a good engine? do you really like the car? Although a properly rebuilt engine may exceed the value of the car. What would another with a rebuilt engine cost? Also do you have the money to get a rebuilt engine? Assuming that you really like the car and money is not a serious issue, and you plan to keep it for many years rebuild it(rebuilt engine, proper one for the car) and continuing enjoying it. In the long run this is the most trouble free, and least amount of unknowns.
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  #6  
Old 05-11-2011, 09:10 PM
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Depending on how long you plan to keep the car, a reman would be best (if you're keeping it a LONG time), followed by option 1, followed by whatever you can yank out of a junkyard for 200 bucks and cross your fingers. On this last one, have you tried Ecology Auto Parts? I found lots of old Mercedes in there when I was working in San Diego in late '09.
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Old 05-11-2011, 09:18 PM
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Quote:
Originally Posted by 47dodge View Post
Do you see yourself with this car for many years if it had a good engine? do you really like the car? Although a properly rebuilt engine may exceed the value of the car. What would another with a rebuilt engine cost? Also do you have the money to get a rebuilt engine? Assuming that you really like the car and money is not a serious issue, and you plan to keep it for many years rebuild it(rebuilt engine, proper one for the car) and continuing enjoying it. In the long run this is the most trouble free, and least amount of unknowns.
from his description, I'm guessing he threw a rod, and it ventilated the block/pan... I doubt rebuilding his motor is an option...
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"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

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1987 300TD
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Old 05-11-2011, 09:26 PM
Craig
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Quote:
Originally Posted by vstech View Post
from his description, I'm guessing he threw a rod, and it ventilated the block/pan... I doubt rebuilding his motor is an option...
I was talking about buying a reman, not rebuilding the existing engine. Unless you do it yourself, a reman is going to cheaper anyway.
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  #9  
Old 05-11-2011, 09:32 PM
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Quote:
Originally Posted by Craig View Post
I was talking about buying a reman
So if I wanted to go this route, where would I look? Metric Motors wants $6850 for a long block.
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  #10  
Old 05-11-2011, 09:33 PM
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Quote:
Originally Posted by Craig View Post
I was talking about buying a reman, not rebuilding the existing engine. Unless you do it yourself, a reman is going to cheaper anyway.
that's why I quoted the other response, not yours...
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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  #11  
Old 05-11-2011, 09:40 PM
Craig
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Quote:
Originally Posted by billhard View Post
So if I wanted to go this route, where would I look? Metric Motors wants $6850 for a long block.
Adsit has them for $3600 plus core and shipping. I know that some folks have a problem with them, but I bought a reman (617 turbo) from them last year; they were $1500 less expensive than metric and I couldn't justify the higher cost:

http://www.adsitco.com/category.asp?CID=1872
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  #12  
Old 05-12-2011, 01:41 PM
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Here's a few....
http://portland.craigslist.org/mlt/pts/2372270497.html
http://portland.craigslist.org/clc/pts/2368701956.html
http://portland.craigslist.org/clc/pts/2375703706.html
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  #13  
Old 05-13-2011, 12:02 AM
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Hey, that first one is mine! Make me an offer!

Kurt
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- '79 240D - engine swap complete! Engine broken in! 28-31 mpg! Lovin' the ride!
- '86 190D (W201-126) - 2.5 NA engine, 5 speed, cloth interior, manual climate controls, 33-34 mpg (sold to forum member).
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  #14  
Old 05-15-2011, 02:41 PM
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What do you all think of the claims the seller is making on this motor? I have not heard of MB selling "rebuilt crate motors" sounds fishy to me. I sent the selling an email asking if these claims could be substantiated.
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  #15  
Old 05-15-2011, 05:15 PM
Craig
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At one point, MB would sell reman engines through the dealers. I've heard conflicting reports if they are still available, but they would be expensive. Hopefully, they have some paperwork to indicate this is legitimate. Any idea of the minimum bid price?

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