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re: Any of y’all ever dealt with a runaway diesel engine?

Posted on 10/31/24 at 11:50 pm to
Posted by Clames
Member since Oct 2010
19572 posts
Posted on 10/31/24 at 11:50 pm to
quote:

All the older 2 cycle Deisel engines do. Detroit's were famous for it.



For Detroits it's the fuel rack under the valve cover(s). If the engine has been sitting for a while the rack has to be checked to make sure it moves freely, pair of vicegrips to yank it over to shut off the fuel if it tries to run away. Wasn't a blow-by issue.
Posted by bovine1
Member since Dec 2004
1371 posts
Posted on 11/1/24 at 6:24 am to
Edit to my post. N14 Cummins obviously. I was half asleep.
Posted by billjamin
Houston
Member since Jun 2019
18076 posts
Posted on 11/1/24 at 9:46 am to
quote:

Tell me how over speed protection stops a runaway diesel?

Depending on the fuel source it might over speed during the run away which would automatically trip it. Like if you had a gas release near an engine. But if it was internal, like oil blow by it probably wouldn’t add enough fuel to hit the over speed rpm, so then you use the manual trip on it to choke the engine.
This post was edited on 11/1/24 at 9:47 am
Posted by Cracker
in a box
Member since Nov 2009
19270 posts
Posted on 11/9/24 at 7:04 am to
Dumb question so shut down the fuel immediately and oil blow by can still continue to cause it?
Could you fog the cylinders with halon and choke?
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