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  1. DukesFin

    Prop for OLD OMC... What pitch?

    I've got a '74 Grady White 212 Chesapeake. Running it is a GM L6 250cid (165hp) and an OMC Stringer Elec. Shift outdrive... Right now, I've got a 19pitch prop on it and while on the water, I am only able to get my RPM up to 3000 and speed (on the GPS) is 33.4mph. I know my engine can turn...
  2. DukesFin

    I can only get 3000rpm...

    GM L6 250 cid with a stringer outdrive pushing a '74 Grady White 212 Chesapeake with a 19 pitch prop... No load (neutral in the water and running "on the hose", I can get more RPM than I need, but when I'm running in the water, I can only get up to 3000 (full tank and only about 250 - 300 lbs...
  3. DukesFin

    GM L6 250cid Alternator.?...

    The one I have looks old and I'd rather replace it before it goes bad, but not sure what one I need... It's for a '74 Grady White 212 Chesapeake. Don't know how many amps I need or what "type" of alternator I need to be looking at/pricing... Mine currently has an external regulator, as well...
  4. DukesFin

    OMC Stringer Gear Lube?? What kind?

    Need to replace the gear lube in upper and lower units... What do I use? I doubt that "OMC Premium Gearlube" is still sold... Anyway, I'm wanting to go pick it up today too, so a good "replacement" product that is readily available would be great! Thanks!
  5. DukesFin

    Water Hose Hookup on OMC Stringer...

    Using the hose connection (to run out of the water) on a Stringer, does the impeller in the Upper Unit get water? I ask because the hose hookup is ABOVE the impeller in the outdrive (on the port side / on the cap covering the tilt bearing). I need to test my outdrive and surely don't want an...
  6. DukesFin

    Conversion from Stringer to Mercruiser?

    Is is possible? Maybe I'm just frustrated, but I am interested in knowing if a conversion is possible. I realize that controls would have to change, but would the engine (GM L6) have to move? I am also aware that the transom would have to be re-done. What about the bellhousing? Anyway, just...
  7. DukesFin

    Lesson Learned (Don't buy used parts from salt water)

    Okay, lower unit in my OMC Stringer went bad. Picked up a whole '77 OMC Stringer Electric Shift from ebay. It works fine, but no worm steering as it was one of a pair of outdrives on a twin engine boat. The bolts holding my lower unit to the exhaust housing broke off due to corrosion. Can't...
  8. DukesFin

    77 OMC Stringer STEERING Worm Gear Retainer...

    Sorry... My last post was not specific and I was worried it would get lost... I'm trying to get the STEERING worm gear retainer out. I've got the worm gear, seals, washers, etc. to go in, but the drive they are going in was one of twins and this one did not have the worm gear in it... Just...
  9. DukesFin

    77 OMC Stringer Elect. Shift Worm Gear Removal

    I can't seem to get the worm reatiner off. I've tried WD40 and heat, but it won't budge... Any suggestions? Next step is to try to find "special tool No.909075"... Thanks in advance!
  10. DukesFin

    Resealing a '77 OMC Stringer Elec. Shift...

    Called and got an estimate of $450 to re-seal the outdrive I got off of ebay for $315. I don't want to hook up a used outdrive without re-sealing it. The price I was quoted was after I told them I had the seal kits for upper and lower units, so seemed really high to me... Given that I have...
  11. DukesFin

    Max RPM for '74 GM L6 165 / OMC 165 Outdrive

    When I get the new lower unit put on, I'll need to know what my limits are with my system... '74 Grady White 212 Chesapeake with GM L6 250 and OMC 165 Electric Shift Outdrive... What is my max RPM? I don't want to push her too hard. So far, (before the lower unit went out), I've had her up...
  12. DukesFin

    Looking for '75 OMC 165hp Outdrive LOWER UNIT

    eBay is proving to be a pain, so I'm wondering if anyone out here has a lower unit they'd be willing to part with. It's going on my OMC 165 outdrive. 165hp GM L6 250 cid motor pushing it. My lower unit bit the dust, so I need a used replacement... Anyone that has one lying around and wants...
  13. DukesFin

    OMC White Anchor Electric to Cable Shift?

    '74 OMC 165 Outdrive connected to a GM L6 250...<br /><br />Can I change over from electric shift to cable shift? I've been offered a new lower unit (cable shift)for a great price. I told the guy to "hang on" while I check into the possibility of changing over...<br /><br />Thanks!
  14. DukesFin

    OMC 165 Outdrive OEM Part Number???

    I need the OEM part number for the forward and reverse "plastic washers" in my '74 OMC 165 "White Anchor" - Electric Shift.<br /><br />Anybody have those numbers? I need to order the parts today and have them overnighted to me, (I might be able to order them tomorrow, but I'd like to have 1 day...
  15. DukesFin

    Boggs down under load

    '74 OMC 165 GM L6 (New motor) on a '74 Grady White 212 Chesapeake -- Holley 4bbl and elec. ignition<br /><br />Coming back into port from the Gulf on Saturday, we were running through some 3'-4' waves. When I'd hit a wave, the engine would really bog down and I would have to back off the...
  16. DukesFin

    Sea Trial of OMC/GM L6 250 cid is DONE!!! And it PASSED!!!

    Took my baby to the Gulf of Mexico this past weekend and ran her for 3 days.<br /><br />The Boat:<br />1974 Grady White 212 Chesapeake<br />The Drive Train:<br />NEW LONG BLOCK GM L6 250 cid / 165 hp with a MARINE Holley 4bbl<br />OMC "White Anchor" Electric Shift<br /><br />Aaaahhhhh! How nice...
  17. DukesFin

    GREAT NEWS ON THE WATER TEST! ( New GM L6 250)

    Okay, if you've followed my "updates" on re-powering my '74 Grady White Chesapeake with a new longblock...<br /><br />Took it to a buddy from another forum yesterday morning and he checked my valves, (good), rotated my distributor 180deg., told me to turn it over and I got to hear the most...
  18. DukesFin

    OMC 165 (GM L6 250 cid) backfiring on test...

    Okay, I've got everything installed and took her to the lake yesterday to "test fire" the new long block. <br /><br />I got oil pressure up by cranking with no spark plugs in her. Put spark plugs in, connected wires, (double checked the wires vs. firing order), and started cranking, hoping for...
  19. DukesFin

    Spark Plug Gap...

    '73 OMC 165 GM L6 250 cid with electronic ignition:<br /><br />I've got 6 ACDelco MR43T's...<br /><br />Is the gap set from manufacturing or do I need to check or re-set the gap on the plugs?
  20. DukesFin

    Question about Testing the New Motor

    Okay, for those of you that don't know or don't remember...<br /><br />OMC (GM) L6 250cid 165hp...<br /><br />My new long block came with these instructions to follow after I'm done with all of the installation (I've filled the oil pump and oil filter prior to installation and now, with the oil...
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