Starting 200tdi Engine Removed from truck - Defender Source
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  #1  
Old June 29th, 2016, 08:32 AM
richord
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Richard Ordowich
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Starting 200tdi Engine Removed from truck

I have just completed preparing my Discovery 200Tdi to replace my 2.5TD. I would like to test the engine before installing it in the truck.

Besides the 12V to the starter and the glow plug, and the cutoff wire are there any other electrical connections I need?

I need to feed it fuel and connect the spill rail. Any other fuel connections I need?

Can I start the engine for a quick run 1-2 minutes without putting any coolant in? I want to avoid having to connect the radiator although I will have to connect the oil cooler lines.

Any other considerations for testing?

Thanks.
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  #2  
Old June 29th, 2016, 08:56 AM
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Quote:
Originally Posted by richord View Post
Can I start the engine for a quick run 1-2 minutes without putting any coolant in? I want to avoid having to connect the radiator although I will have to connect the oil cooler lines.
Check that the oil level is correct.

IMHO I wouldn't recommend running any air-cooled engine without coolant, although if you do, then at least fill the block with coolant (water) until it spills out the radiator hose, and shunt the radiator hoses if you can. A minute is a long time.
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Old June 29th, 2016, 08:57 AM
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  #4  
Old June 29th, 2016, 08:57 AM
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Matthew
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Yea I wouldn't run it for more than a min, and I would fill it with coolant and loop the lines
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Old June 29th, 2016, 09:53 AM
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Just keep in mind that a lot of the time, you need to put load on the engine to get the cylinder temperatures up well enough to all fire depending on condition and how it was left. In other words, a short cold idle does not tell you much about condition.
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Old June 29th, 2016, 10:06 AM
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We often run engines for 6 or 8 hours before draining the fluids and shipping them, but we use a run in stand that has mounts positioned in the same location as the frame mounts for the series LRs.

If you are going to go to the trouble to run the engine, I guess the real question is what do you intend to accomplish by running it?
In other words do you have a checklist of things like oil pressure, temp, compression, and so on.

It is smart that you want to run the engine because most people, just drop a well used engine in and hope for the best, while experiencing the worst.

Suggest you take a compression check and replace the rear main seal, timing belt, head gasket, water pump, fuel pump, front housing seal, thermostat, have the injectors checked or install reman ones.

Then you could hook up the radiator and intercooler and give it a proper run before you install it.
With the turbo disconnected from the inlet manifold, your engine will be somewhat over fueled and under pressurized, which will not give any indication of how well it runs. So it's best to run with the Turbo connected to the intake, preferred via the intercooler.
Also if you decide to run it make sure you use clean fuel and disconnect the injector lines and flush out the trash before starting, so your injectors don't clog with accumulated trash.

Also read John's post because running an engine on a stand or on the ground is very different from experiencing how it reacts under load.
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  #7  
Old June 29th, 2016, 05:31 PM
richord
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Thanks guys. I changed the timing belt even though the one on the engine was in great shape. Installed new rear oil seal, relocated the alternator to the right side, replaced the thermostat, clocked the turbo and cleaned the engine.

I just wanted to run it up before installation. I will setup the new radiator and fill it with coolant, oil and run it for a longer time. I will check the compression beforehand.
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