A quick look around reveals that the problem of runaway diesel engines is well known.
"Detroit Diesels have an air cutoff butterfly valve as standard equipment, but for other engines you can buy a butterfly air shutoff and install a Morse or Teleflex cable " (Runaway Diesel Engine - SailNet Community)
and "A diesel engine can runaway and self destruct on hydrocarbon vapors, even if the engine’s primary source of fuel is taken away.
An air intake shutoff valve is recommended for diesel engines which have a possibility of encountering hydrocarbon vapors."
(from: AMOT-Applications- Butterfly Valves-4261M Butterfly Valve (Electric, Pneumatic, Hydraulic & Manual Actuation))
and in the US, "...Federal law mandates the use of air shut off valves or esd valves on diesel engines used on offshore drilling rigs" (Diesel engine runaway - Wikipedia, the free encyclopedia)
An air cutoff ought to be standard on diesel engines, and an automatic one at that (faster reaction time).
An LR specific aftermarket item would be a good idea - and is more important than an EGR bypass.
Perhaps there is one that I haven't found yet?
"Detroit Diesels have an air cutoff butterfly valve as standard equipment, but for other engines you can buy a butterfly air shutoff and install a Morse or Teleflex cable " (Runaway Diesel Engine - SailNet Community)
and "A diesel engine can runaway and self destruct on hydrocarbon vapors, even if the engine’s primary source of fuel is taken away.
An air intake shutoff valve is recommended for diesel engines which have a possibility of encountering hydrocarbon vapors."
(from: AMOT-Applications- Butterfly Valves-4261M Butterfly Valve (Electric, Pneumatic, Hydraulic & Manual Actuation))
and in the US, "...Federal law mandates the use of air shut off valves or esd valves on diesel engines used on offshore drilling rigs" (Diesel engine runaway - Wikipedia, the free encyclopedia)
An air cutoff ought to be standard on diesel engines, and an automatic one at that (faster reaction time).
An LR specific aftermarket item would be a good idea - and is more important than an EGR bypass.
Perhaps there is one that I haven't found yet?
stchris356
New Member
I take it the crankcase is still vented and the plugged hole is in the air inlet?
Shifty1962
Well-Known Member
If not it will blow the cork out.
If you've left the crankcase vent pipe dangling in the engine bay you'll have a nice wet oily engine in no time at all as they emit a fine mist of engine oil. You need to use a catch tank as just pointing the vent pipe down towards the road is illegal not to mention anti social.
