Quote:
Originally Posted by Phillytwotank
It's in process of failing. It can still shut down even if it has a small leak. It will get worse and will eventually be unable to hold enough vac pressure to shut the engine off... Could be sooner or later. No telling for sure but, as long as the mechanical throttle linkage is well adjusted, you will always be able to stop the engine with te stop leaver. It's super easy to replace but the replacement part is getting pretty expensive.
The stop leaver is not directly connected to the shut off valve so you won't see any movement when vac is applied to the valve.
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Agreed. My one 300SD would take a second or two to shut down after the key was removed. Turns out the shutdown valve was going south, it had a leak in it.
In my case, the stop-level on the linkage has been rendered useless due to some "repairs" I had to enact. So having a bad shutdown valve was a no-go.
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