Search results

  1. sam am I

    Minn Kota 3hp...anyone have one?

    Thx gm, Jeep, check pin 7 (Vcc) to pin 5 (Gnd), should be at least 12V. If you have power, check pin 6 to pin 5 for something other then 0V (modulating DC will have a AC value, so use AC scale on DMM). Guessing pin 6 drives a/the FETs gates through a resistor of some low'ish value........Maybe...
  2. sam am I

    Minn Kota 3hp...anyone have one?

    It varies how much the time the pulse is on, they'll go from off to full on or 0% to 100% duty defined by % Duty Cycle = (Ton/(Ton + Toff))*100. My guess is the power FET's are wired as low side switches and are not being turned on (is why you see 12V everywhere). Low sides switches hard wire...
  3. sam am I

    In need of a good auto electric mech in or about the Nogales/Sierra Vista Arizona area

    In need of a good auto electric mech in or about the Nogales/Sierra Vista Arizona area I have a 03 F250 Lariat that suddenly is w/o headlights and now blowing fuses, it needs help. Anyone have a line a trust worthy mech down in the Nogales/Sierra Vista area? Thx
  4. sam am I

    Homemade LED light inserts.

    Changing it up a bit with simple suggestion (electrically).......Design in a bit of a trade off of having to dissipate a little more heat over the operating conditions and also designing within the devices (design requires/requests 4 LED to be used) limitations, suggest moving the LED's...
  5. sam am I

    Homemade LED light inserts.

    Yes but, be advised the LEDs tap out much faster (di/dv slope is increasing) ..........e.g., right out of the shoot if Vd = 14.6 up from just 14.4V, the LEDs are at their presumed max spec forward current of 20mA (See green op box for 12-16Vd current values), if at 16V (reg craps out), 40mA =...
  6. sam am I

    Homemade LED light inserts.

    If ya want/need to brighten up the 12V'ish op area and run about 7mA, you'll have to lose the 4th LED in the series branch and use just 3 LED's in series with a 300 ohm .5 watt limit resistor....Runs then about 12mA nominally and tops around 18mA if ya end up at 16VDC.
  7. sam am I

    Homemade LED light inserts.

    .........Yeah and assuming (RS dropped a lot of their online spec's) these are spec'd @ 20mA max, 3.6Vf LEDs, you'll be fine (see green box in plot for operational limits mentioned below). Ya might be a bit on the dimmer side at 12V (just on battery) with around 2mA but, while running at...
  8. sam am I

    Homemade LED light inserts.

    At 3.6V max Vf on ea. LED x 4 with a supply voltage (Vd) at 14.4VDC, you'd be operating on the "knee" (see right hand side of graph), If Vd raises above the knee, say by a volt for example to 15.4VDC, the LED's Vf's are still clamped at 3.6V max per LED or the series combo14.4V, then 15.4Vd...
  9. sam am I

    ACR or DVSR

    I didn't show my Honda OB second charge source setup as I had up in #2 and have edited this to be more inline with your setup with only a small mod of replacing your old iso and adding the ProM.........For winter storage, I have three 1.5A trickle chargers attached directly to the batts as shown...
  10. sam am I

    ACR or DVSR

    Might give this a shot Dodge.......Zero'ish drop/loss when ig/engine is on, totally isolates all batts w engine off, priority charging/prevents back charging (routes current to lowest batt w/o paralleling the low battery with other full batteries), manages all batteries w either the alt or...
  11. sam am I

    crankshaft/race bearings. alignment set pin

    These in the journals? I never needed to remove specifically those ^^^ but, I removed all the other align pins/dows in the same block (head side and block half seen in pic) with just a pair of bull nose pliers...........Have you tried just pulling/twisting them out with a good set of pliers...
  12. sam am I

    Manual tilt for 99 Merc XR6 150hp

    With my engine, 92 175..........Since I'm in it weekly never need to pump the bulb but, 1) Advance throttle just off the neutral detent 2) Turn key to "on" *3) Press key in to enrich for 10 sec's 4) Crank to start 5) Bump en-richer if necessary *The thing/confusion that may exist here and...
  13. sam am I

    25HP Mercury Bigfoot won't start in river current

    For 1998 and up BF 25HP, starting at SN 0G590000............I don't see anything in here that would prevent it from cranking with or without the prop turning, just needs to be in neutral............Strange. I'd guess problem somewhere in the remote harness "o" and tilting is making and breaking...
  14. sam am I

    Tach test

    Had a couple of requests for a few more examples............Also, using **smart phone app and direct connected circuit in post #6 4 Cylinder 4 Stroke Tach Example 4 Engine's coil gives 2 pulses per rev (2 P/R) Want Tach to Read/Check 1500 RPM (1.5K R/M) 1.5K R/M * 2 P/R = 3000 P/M or 50 P/S...
  15. sam am I

    Solas Rubex Hub verses Quicksilver Flo TORQ II

    I'm at a cross road............opinions?
  16. sam am I

    stator problem

    This might help........
  17. sam am I

    Tach test

    Nope, ya want/need to let her sing like the car's/boat's coil/stator would........FET's Vds = 200V. Mistakenly wrote IRF540 (above), should be IRF510, either works tho. Also Vgs threshold on the FET is 10V (to turn it on), as such, you'll most likely need an amp on you puter audio out, I have...
  18. sam am I

    Tach test

    Little more details FWIW and if anyone's interested, fairly easy, quick and cheap motorless way to bench check/cal those old Tachs....... Build this Go to http://onlinetonegenerator.com/ Tach sig input signal will look like this ( this was at the 67Hz and 400 Hz, see below examples)...
  19. sam am I

    Something we've all wondered about at least once.........

    https://www.youtube.com/watch?v=GvVaaZ21C44
  20. sam am I

    Rpm gauge was dead then started working out of the blue

    In boating, one should also expect a bit higher level of internal phantasma as well....
Top