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Old 05-26-2009, 09:26 AM
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What engine tests?

I have a 1975 240D that I bought after a car accident as a stop-gap until I was able to purchase an appropriate replacement. The body is pretty well rusted out (apparently they really like their roads salty here in NW Ohio), but the engine runs quite nicely and the transmission shifts well. I have changed glow plugs, oil and transmission fluid, and adjusted valves (3x) and done several brake related things to car to make it safe enough to use as a DD.
Engine: 616916-10-061074 (4 cylinder diesel)
Transmission: 081490 (4 speed manual)
It has ~140k, or ~240k, or ~340k miles on it, unable to tell from the odometer, but was sold to me as a 140k mileage car.
I anticipate selling the vehicle as-is for someone to use as a donor into a similar car with a decent body. A friend of mine who is a marine diesel mechanic recommended the following tests: compression, submit oil for metal analysis, run a temp-gun over engine to look for hotspots.
If you were planning on doing an engine swap, would these tests be enough to prove to you that this engine was in good shape, or would you want something else/additional?
What kind of price would be appropriate for this engine if it proves to be in decent shape?
Thanks, Alex
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"Frau Blue Car" 1980 240D think Frau Bluker, cue the horses, formerly known as "China" from JimmyL
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"Fraulein" 1975 240D----Donated to NPR

Last edited by AlexCole; 05-26-2009 at 10:41 AM.
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Old 05-26-2009, 09:58 AM
ForcedInduction
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Quote:
Originally Posted by AlexCole View Post
What kind of price would be appropriate for this engine if it proves to be in decent shape?
Well, this one is going for $1700.

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=200317202600
Somebody should tell the seller he is a cylinder and a turbo short.

This was the reply I got from Mr. Gerald Lamont when I did just that.
"I'm sure glad your not a mechanic working for me. I'm afraid you'd prove to be a terrible embarrassment to in your inability to discern between a four cylinder naturally aspirated engine and a five cylinder turbo."
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Old 05-27-2009, 09:21 AM
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Well, that definitely smells like sarcasm.............

... but I'm much more interested in knowing if those are the right tests to determine if the engine is worth selling, the other option is to send it to the yard.
Anybody?
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"Frau Blue Car" 1980 240D think Frau Bluker, cue the horses, formerly known as "China" from JimmyL
"Gunther" 1982 300D.....Turbo!! A/C!! Sunroof!!
"Fraulein" 1975 240D----Donated to NPR
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Old 05-27-2009, 09:44 AM
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I would be content with a warm compression test and an oil analysis.

But at that age, if I was doing a swap, I would replace the headgasket and valve stem seals for good measure. Actually, there would be a list of chores I would consider before putting that engine into another car.


edit: did not realize you wanted to sell it. I would be happy with the information provided by those tests if I was buying an engine.
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Last edited by jt20; 05-27-2009 at 10:04 AM.
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Old 05-27-2009, 11:25 AM
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While you are doing the compression test, also do a leakdown test, which will tell you where the compression loss (if any) is going.
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