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  1. jimmbo

    Engine weight

    The last year of the Hydro-Electric gear shift. Back in those Days it was always a delight to see what new engines were being introduced and HP upgrades over the Previous Year. The V6s were still about 3 yrs from Production. These days the motors don't even have a Model Year. As for "New and...
  2. jimmbo

    Engine weight

    An 84 75hp long shaft with PT weighed about 256lbs
  3. jimmbo

    Engine weight

    4 strokes are so boring and Blaise, not to mention Heavy and sluggish. I can see a demand for secondhand 2 strokes growing, and hopefully a rise in 3rd Party engine parts, to keep them alive
  4. jimmbo

    Reed Valves

    If you put 10 towards the Flywheel, the Upper Cylinder has 10 Reeds and the Lower One would have only 8, so the CFM Flow isn't going to be the same for both Cylinders
  5. jimmbo

    Reed Valves

    So you are saying one cylinder gets 10 reeds and other gets 8?
  6. jimmbo

    Reed Valves

    Cause Mercury Engineers figured that 9 Reeds for each Crankcase would be enough to make 115 HP, that Model Year. I can't recall any instructions in the manuals regarding Orientation
  7. jimmbo

    Best way to waterproof plywood transom

    One thing about sealed wood, or what was thought to be sealed, if any fresh water does get in, it will never get out, and that is when the Rot starts. Salt Water doesn't seem to rot wood as fast
  8. jimmbo

    Glastron SX 175 Gas Smell

    That Solid Material, being a Metal, or a Metallic Salt
  9. jimmbo

    Glastron SX 175 Gas Smell

    What you are calling the Gas output is the Vent Hose. The Gas Outlet is the 90 degree fitting
  10. jimmbo

    Another crazy car question...

    The PCV was introduced in the mid 60s, prior to that, engines had a Draft Tube that extended below the bottom of the car, and crankcase blowby was evacuated this way. It didn't help purge the crankcase very well at low speeds or when parked. The early PCV systems were still open to the...
  11. jimmbo

    Glastron SX 175 Gas Smell

    Exhaust? Are you referring to the Vent? If you are trying to pressurize the Tank, it can't be vented. As for using a Compressor, that should exceed 3 psi in a Heartbeat. If you fill the tank, near full, it will only take a few pumps with a Manual tire pump to hit 3 psi
  12. jimmbo

    Glastron SX 175 Gas Smell

    Have you tried Pressurizing the tank, and doing the old Soapy Water Test? The Label on the tank does state a 3 psi Limit though
  13. jimmbo

    Another crazy car question...

    Blow By would create pressure, the spinning and reciprocating parts wouldn't create Pressure, Turbulence perhaps, but not Pressure, as half the pistons are going one direction, and the other half are going another, the air inside the Crankcase is still in balance. However, an engine with an odd...
  14. jimmbo

    Broke powerhead bolt

    Get another Head Gasket, they are a tighten down once design
  15. jimmbo

    Broke powerhead bolt

    It looks like you are pointing at a Cylinder Head Bolt. If that is the case, then you must replace it. If you are pointing at some other bolt, provide a better Pic, even if you have to wait till the rain quits
  16. jimmbo

    Engine weight

    Soon a 2 Stroke in good shape, will be worth its weight in Gold, the Demand for them will go up as people get fed up of the lack of Pulling Power for Water Sports offered by the 4 Strokes
  17. jimmbo

    Proper way to check compression ?

    It should. More than one Skipper has had a No Start problem, that was caused by Kill Switch activation
  18. jimmbo

    1977 Baja on the cheap

    That Starting Fluid certainly didn't do the engine any damn Good. I guess you could buy it, and might get a bit more for it by Parting it out. It is 46 yrs old, and will probably new all new Wiring on the Engine, and a new Wiring Harness. Compression is unknown... I suspect the Transom is...
  19. jimmbo

    Not good. Maybe

    For 20 yrs, I have just drained the Block, the manifolds, the Big Hose between the Circulating Pump and the Stat Housing, pulled the Ignition Lanyard and cranked the engine to allow the Raw Water Pump to drain any water out of it and the Passages. Put the Engine Cover down, and tarped the Boat...
  20. jimmbo

    Serial number not correlating. What timing to use? Choke on power wire?

    First Things first. Is that Sniper EFI, USCG approved, or is it an Automotive Unit?
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