Deutz engine in a small Dynapac compactor CA 12. From reading, I figured if the cooling fan belt broke, there would be some Dilemma.
Machine has been stored for a while (thank you Economy!), checked the usual and evicted spiders etc. Started up right away. Belt inspected - looked good and no cracks. Been running well and best helper was using it for a couple hours with no vib to level some mounds when it suddenly stopped. He of course didn't see the gauge and was quite surprised. The belt jumped off the pulley(s) but wasn't broken.
It was able to be restarted w/i an half hour or so and they forced cooled it by misting the oil cooler on the back. Yes they didn't realize that was for the hydraulic system .... which had no real heat since no vibration used.
For this post, other than analyzing (to no good end) the 'mechanics' of their thought process ..... a couple Deutz questions:
Given the belt tensioner electrical switch gizmo affected nothing (bulb wire found w bad connection) and the sudden shutoff was likely a seizure and the next day miraculously the motor sounds fine, is it possible the motor could endure the seize and somehow not be mortally damaged? Does it help in such a situation the motor is well worn in?
Am planning on changing the oil although it doesn't smell burnt.
Got the tensioner 'position switch' working w a new bulb and some wiring repairs.
Also noticed the old belt [which is v diff to see when installed], had actually worn to a somewhat chisel shape and must have rode a bit down in the pulleys whereas the new belt is riding higher; the spring tensioner is wound tighter and belt tension is higher since it had to stroke further.
The simplicity and reliability of the mechanical fuel system is less desired when a simple electrical solenoid could have terminated the fuel supply. I dreamed up the possibility some form of a mechanical thermal operation could have been built into the Bosch fuel injection pump unit and held the mechanical low pressure pump lever off the cam .... but no such feature that I can find. Thus seizure concluded for the sudden shutdown.
Machine has been stored for a while (thank you Economy!), checked the usual and evicted spiders etc. Started up right away. Belt inspected - looked good and no cracks. Been running well and best helper was using it for a couple hours with no vib to level some mounds when it suddenly stopped. He of course didn't see the gauge and was quite surprised. The belt jumped off the pulley(s) but wasn't broken.
It was able to be restarted w/i an half hour or so and they forced cooled it by misting the oil cooler on the back. Yes they didn't realize that was for the hydraulic system .... which had no real heat since no vibration used.
For this post, other than analyzing (to no good end) the 'mechanics' of their thought process ..... a couple Deutz questions:
Given the belt tensioner electrical switch gizmo affected nothing (bulb wire found w bad connection) and the sudden shutoff was likely a seizure and the next day miraculously the motor sounds fine, is it possible the motor could endure the seize and somehow not be mortally damaged? Does it help in such a situation the motor is well worn in?
Am planning on changing the oil although it doesn't smell burnt.
Got the tensioner 'position switch' working w a new bulb and some wiring repairs.
Also noticed the old belt [which is v diff to see when installed], had actually worn to a somewhat chisel shape and must have rode a bit down in the pulleys whereas the new belt is riding higher; the spring tensioner is wound tighter and belt tension is higher since it had to stroke further.
The simplicity and reliability of the mechanical fuel system is less desired when a simple electrical solenoid could have terminated the fuel supply. I dreamed up the possibility some form of a mechanical thermal operation could have been built into the Bosch fuel injection pump unit and held the mechanical low pressure pump lever off the cam .... but no such feature that I can find. Thus seizure concluded for the sudden shutdown.
Deutz air cooled F3L912 - Seized?
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