Recent content by itstim

  1. I

    Compression test

    So what is the correct way to do a compression test? Take all the plugs out or just one at a time? And they should all be within what lb/% of each other? What is a max/min lb for a GM 165?
  2. I

    rochester 2-bbl carb flood

    GM IL6 2-bbl carb has gas coming out of the tube on top of the carb when I crank the engine over. When I tap the reservoir it frees the the float and works fine after that. I've tried cleaning the reservoir but it doesn't seem to fix it. Any ideas what I should do next?
  3. I

    which starter-GM IL6 160

    I need a new starter. I've got a really old mercruiser system. There are no seriel numbers on the engine. It's a straight 6 GM 250 in a 1969 Fiberform 24'. A sticker on the valve cover says "160hp" The starter is starting to go (at least it's "starting" to do something!). The distributor...
  4. I

    Thermostat IL6

    bought a quicksilver thermostat-140 item # 59078. Tested against 2 agreeing (candy) thermometers. It did not begin to open til 160 degrees. Ran the test 3 times...a number of different ways: running the temp up to 143, down from 170 etc. All the same...160 before any action by the thermostat...
  5. I

    timing setting 1970 IL6 GM 160 Delco dist

    One of the kids ripped the page out! Can someone check their manual for the timing setting and dwell. I'm pretty sure dwell is 28-32...just can't remember timing<br /><br />Thanks!
  6. I

    What's the worst outdrive you know of?

    What's the worst outdrive (1970-2004) you've worked on? Which model seems to show up at your shop on a regular basis? Is there a model you would never own? What model do your friends say is the worst?
  7. I

    Cooling sys. flush feasibilty question GM IL6

    Older inline 6 GM 160hp seawater cooled:<br /><br />Suspect my block has rust build up in its cooling passages. Since angioplasty is out of the question I was wondering if it is feasible to flush it by removing t'stat, running intake water from impeller overboard, plugging overboard hose from...
  8. I

    1970 GM IL6 overheat seawater PU

    unit overheats above 2500rpm. Inspected manifold/riser (Osco). Found riser interior wall completely corroded out although water jacket still good. Good water flow at all other points in cooling system. 99.44% sure this is the problem (new riser on the way). This is an old riser that stands...
  9. I

    Boat Salvage Yards

    Anybody know of any Boat Salvage Yards?
  10. I

    Used Parts

    Anybody have any good sorces for used engine/outdrive parts?
  11. I

    Osco manifold 1970 straight 6

    I have an overheating problem and have narrowed it down to the manifold and I have a couple of questions: the riser has these 3 quarter inch allen head bolts (that snapped off!) that appear to hold the riser onto the manifold...is that correct? riser has these 4 1/2 inch allen head plugs on...
  12. I

    battery charger rate question

    Is it ok to leave a deep cycle battery on a 1.5 amp charge between weekends at the marina?
  13. I

    battery charger rate question

    Is it ok to leave a deep cycle battery on a 1.5 amp charge between weekends at the marina?
  14. I

    shift bellows replacement-pre-alpha

    Like everyone else I'm always looking for a way NOT to have to remove the drive. My question is: can I change the shift bellows w/o removing the drive by turning hard to port, trimming up and pulling the cable?
  15. I

    inline 6 overheating

    gm inline 6 (1974) overheating above 2000 rpm. Impeller new and working. Water pump good, Therm good. Intake water passages clear. I'm suspecting the big long Osco manifold is partial blocked and not draining the higher volume of coolant water at the higher rpms. It is not leaking anywhere...
See more
Top