Re: [MV] over reving a diesel

Andreas Mehlhorn (a.mehlhorn@t-online.de)
Sat, 7 Nov 1998 20:14:39 +0100

Messages sorted by: [ date ][ thread ][ subject ][ author ]
Next message: Buzz: "[MV] TM 11-227 Comm. eqpt. directory CDROM Available"
Previous message: RKiser8375@aol.com: "Re: [MV] Restoring Data Plates?"
Maybe in reply to: King: "[MV] over reving a diesel"

King schrieb:
>
> Not possible to over rev a diesel, unless to the injection pump fails (sa=
w
> it happen once!).
>
> je
>
> Down hill you can and it will usually stretch the rods causeing the valve=
s
> to hit the piston.I know because a friend of mine did it to his Diesel Un=
imog.
> Andre
=20
Over reving a diesel engine is also possible, if you shift down at high=20
speed to a low gear. (For example if you want to shift from the 4th to
the 5th gear and instead of the 5th you get the 3rd...) This is really=20
bad if you have a big truck and a synchronised gearbox.

The rods didn't strech. Before the rods stretch, the pistons will break.
The reason why the piston hits the valves is because at these too high
revs the valves don't close fast enough. Their return springs are not
made for such high revs.

Regards
Andreas

===
To unsubscribe from the mil-veh mailing list, send the single word
UNSUBSCRIBE in the body of a message to <mil-veh-request@skylee.com>.

Next message: Buzz: "[MV] TM 11-227 Comm. eqpt. directory CDROM Available"
Previous message: RKiser8375@aol.com: "Re: [MV] Restoring Data Plates?"
Maybe in reply to: King: "[MV] over reving a diesel"