| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 1516.1 | one way | MSCSSE::BERENS | Alan Berens | Fri May 25 1990 18:24 | 4 |
| On my diesel engine, there is a pressure switch that is turned on by
fuel system pressure. When on, this switch supplies 12 volt battery
power to the engine instruments, including the hour meter. The hour
meter is simply a clock run by 12 volts.
|
| 1516.2 | Vibration ? | HAEXLI::PMAIER | | Mon May 28 1990 07:01 | 5 |
| I have a hour meter with no power.Its internal clock gets powered by
the vibration of the engine.But it has to be mounted on the engine.
Peter
|
| 1516.3 | ONLY A CLOCK | MCIS5::PELLEGRINI | | Wed May 30 1990 08:55 | 5 |
| ON MY ENGINE THE HOUR METER IS ONLY A CLOCK TIED TO THE IGNITION
SWITCH.
YOU HAVE TO TURN OFF THE KEY TO STOP IT(AFTER YOU SHUT DOWN THE
ENGINE).
|
| 1516.4 | Cut and Connect? | SCAACT::CLEVELAND | | Wed May 30 1990 20:20 | 5 |
| re .3
So if I simply cut my ignition switch wire going to my key and wire the
hour meter in series, that would work? Would I have to worry about
current load?
|
| 1516.5 | ex | RECYCL::MCBRIDE | | Thu May 31 1990 09:34 | 13 |
| I believe that any wire that comes off the alternator or would have
juice if the alternator is running will work. Current load may be a
factor so you want to stay away from any ignition areas that would have
a large current draw as when starting. If your ignition key has an ON
and START position you may be able to wire it off of there. Be careful
of cutting and splicing. The more connection you have the more prone
to problems later on. There may be a lug or spade terminal on the
start switch for auxiliary purposes. If not look for a terminal block
that has juice only when the engine is on if there is one.
Hope this helps.
Brian
|
| 1516.6 | Don't wire in series w/regulator!! | BIZNIS::CADMUS | | Thu May 31 1990 10:32 | 27 |
|
DO NOT wire an hour meter in series- the ignition switch on a diesel is
usually wired so that it allows power to be applied to the field in
your charging circuit. Since the hour meter is high resistance and the
voltage regulator/field circuit is low resistamce, almost all of the
12v will be across the hour meter- it will work fine, but the charging
system won't.
The best way is to come off the ignition switch (the switchwed side)
and connect a second wire to the + on the hour meter. The other
terminal on the hour (-side) can then go to ground.
You can also get a pressure switch from your local auto parts store
that closes on an increase in oil pressure- this is the opposite of a
standard oil pressure switch that OPENS on increasing oil pressure. You
can then simply wire the + side of the hopr meter to the = (unswitched
) side of your ignition switch and connect the - to the pressure
switch. Put the pressure switch in a pipe T connceted with your
existing pressure switch/sending unit for oil pressure. When the engine
starts and oil pressure build up, the switch closes and starts the hour
meter.
Either of these two should work- instructions should also be included
with the hour meter.
|
| 1516.7 | Add hour meter to another meter | NWD002::SASLOW_ST | STEVE | Fri Jun 01 1990 15:13 | 5 |
| Just pick up 12V from one of your other engine gauges such as oil
pressure or volts. There is usually plenty of room on the gauge's
terminals to add another connector. You can pick up ground there
also.
|
| 1516.8 | thanks for suggestions | DLOACT::CLEVELAND | | Mon Jun 04 1990 20:11 | 8 |
| Thanks for your suggestions. The only meter I have is a temp gauge and
since the hour meter is already mounted, but has never been used, the
instructions are probably still with the previous owner. I'll try to
wire it up with something coming off the engine. I like the oil switch
idea too and may go ahead and give that a try. I'll let you know if I
have trouble. Thanks again..
Robert
|