How NOT to start an engine on a stand - Diesel Forum - TheDieselStop.com
7.3L IDI Diesels (Not Power Strokes) Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

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post #1 of 14 (permalink) Old 03-07-2018, 09:59 AM Thread Starter
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How NOT to start an engine on a stand

Years ago a Detroit Diesel engine rep came to our shop for a yearly engine info update. He brought up the fact that in his travels he sees diesel mechanics now and then starting an engine momentarily after a re-assembly or whatever with absolutely no coolant. He stressed even for a few seconds very high combustion heat is created with absolutely no way for it to dissipate whatsoever. After thinking about it later, makes perfect sense. First, due to the trapped heat with nowhere to go, most all piston ring tension is probably quickly shot. Can't do exhaust valves much good either. And sure enough, there was a guy, among others, on U-tube who ran an engine on a stand for a good 2 minutes, zero coolant, then a few weeks later he was asking why all the blue/white exhaust smoke and oil consumption (bad rings, duh) . There's an "expert" on FTE with a video right now proudly firing one up with no coolant, (same guy just grenaded one of his rebuilds after 60 miles but that's another story). Point is, just because you see some Clown do something on U-tube to his IDI diesel doesn't mean it's the right thing to do.

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post #2 of 14 (permalink) Old 03-07-2018, 09:40 PM
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But, Wait!! Everything you see on the internet is true, isn't it?

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), AIS,
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post #3 of 14 (permalink) Old 03-07-2018, 10:05 PM
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But, Wait!! Everything you see on the internet is true, isn't it?
Only if the pictures are posted to prove it

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post #4 of 14 (permalink) Old 03-08-2018, 07:03 AM
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Only if the pictures are posted to prove it
No picture it never happened.
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post #5 of 14 (permalink) Old 03-08-2018, 07:34 AM Thread Starter
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Here's one of many from the old pro, lots of ether and an overworked starter and you're good to go--ask and you shall receive:

www.youtube.com/watch?v=qDPln0HtiZw

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post #6 of 14 (permalink) Old 03-08-2018, 07:54 AM
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Thatís funny stuff. Iím surprised the amount of ether he sprayed didnít make him pass out.
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post #7 of 14 (permalink) Old 03-08-2018, 08:23 AM
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Thatís funny stuff. Iím surprised the amount of ether he sprayed didnít make him pass out.
it probably did they had 4 takes

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post #8 of 14 (permalink) Old 03-08-2018, 10:40 AM
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I've seen a guy start & run a gasser hanging from a chain on a cherry picker. It danced even more than that 6.9 on the pallet.


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post #9 of 14 (permalink) Old 03-10-2018, 01:19 PM
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Some people should not be in the gene pool!!!
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post #10 of 14 (permalink) Old 03-10-2018, 06:44 PM
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Here's one of many from the old pro, lots of ether and an overworked starter and you're good to go--ask and you shall receive:

www.youtube.com/watch?v=qDPln0HtiZw

oh this is priceless...

"oh good sign, we are getting smoke out the exhaust now... also smoke off the battery terminal..."
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post #11 of 14 (permalink) Old 03-11-2018, 09:56 AM Thread Starter
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Yep, and interestingly enough he's still dishing out advice like crazy even after admitting he installed a front crankshaft seal and rear main seal backwards.

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post #12 of 14 (permalink) Old 03-11-2018, 01:51 PM
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Yep, and interestingly enough he's still dishing out advice like crazy even after admitting he installed a front crankshaft seal and rear main seal backwards.
And sadly people are soaking it uplike it is gospel
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post #13 of 14 (permalink) Old 03-16-2018, 04:13 PM
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Oh man, just catching up to this. Notable jump-cut at aprx. 3:05, garage door conspicuously goes from down to up. Golly, wonder why.....
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post #14 of 14 (permalink) Old 03-16-2018, 04:59 PM
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Maybe charging up the ONE battery, or replacing the burned out starter? Take your pick

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