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  1. troym

    Carb

    These should help. Pay attention to the float level and drop spec in the tech bulletin. Because there are so many different applications these carbs are used for, the specs given in rebuild kits don't work for certain engine/carb combinations. As mentioned above, get the OEM gasket or you'll...
  2. troym

    Please help

    See attached service bulletin.
  3. troym

    Beginning of the end...

    '97 5.7L, 2bbl mercarb, TB V, A-1 GenII. Wet oil fouling and carbon build-up on #3 spark plug. Compression in that cylinder 145psi. Compression in all other cylinders 160-170psi. Vacuum test OK... 18"Hg and steady at idle, 25"Hg and steady at 3000rpm. Replaced the fouled plug, runs pretty good...
  4. troym

    White Smoke

    '97 5.7L, Alpha, Gen II., 2bbl Mercarb What causes white smoke? About two weeks ago, I ran the boat to the fishing grounds (45 min) at moderate speed (3200rpm), trolled for about 3 hours at 1200-1500rpm, ran back in at 3200rpm. No smoke until I throttled back, entering in the no wake zone...
  5. troym

    Trim up doesn't work when underway

    Pictures are worth a thousand words.. see attached.
  6. troym

    Trims up, but not down

    '97 Alpha I, Gen II Not an electrical issue. Pump runs fine. Changed fluid, bled all the air out. Will trim down if I stand on top of it while someone else pushes the button. If I spray WD-40 on the tail rods, once I get it started, it will go down on its own, but kinda 'bumps' its way down...
  7. troym

    Very Disappointing

    I hate to see that two of the more regarded contributers to this forum have reduced themselves to 'one upping' each other. Seriously, are you that insecure in your own experience and expertise to feel the need to drop to that level? Who would you rather take advice from: the guy who admits to...
  8. troym

    Drive won't go on

    Are you sure you have the right alignment tool? Older tools don't go in as far. See attached.
  9. troym

    Gantry hoist or crane for engine installation?

    1- lift load straight up by lifting with hoist A, taking in the slack of hoist B. 2- traverse the load by simultaneously taking up the load with hoist B and letting out chain from hoist A. A little practice and co-ordination between the two hoist operators and you can do this with very little...
  10. troym

    Gantry hoist or crane for engine installation?

    I made this and used it to lift my 5.7L up and move it forward to replace the flywheel and engine coupling. For your purposes, it would have to be longer to extend past your transom (say 12' long), and higher so the engne(s) would clear your transom (16'?). As such, I would add additional posts...
  11. troym

    Valve adjustment

    Found some measurements online here: http://www.pacificp.com/forum/viewtopic.php?p=66383&sid=6c564c79797a66ad341676cfcf5c834b Those look pretty accurate or at least close enough. I rounded them a bit for ease of calculation: tan = opp/adj = .041/1.377 = 0.298 0.0298 = x/2.295 solve for x...
  12. troym

    Valve adjustment

    5.7L reman long block. Just had the heads done, and have it back together. Cold compression test on all cylinders good enough (150 was the lowest, 165 the highest). Looks like I'm back to having 8 functional cylinders again. Will recheck compression and do a vacuum test after I have it running...
  13. troym

    1997 5.7 LExhaust Valve Stem Diameters... what cylinder heads do I really have?

    1997 5.7L, Alpha I, Gen II, 2bbl, Thunderbolt V, flat lifters, non Gen+ Finally got some time to tear into this thing. Background info: - Zero compression #1 cylinder. - Pulled the head, #1 exhaust valve is bent, hit the top of the piston, most likely due to worn out valve spring. The free...
  14. troym

    Thunderbolt V ICM 1997 5.7L

    Tore into this afternoon. Didn't see anything wrong with just the rocker arm cover off (Pic #1), continued deeper and pulled the cylinder head off. Found the cause for zero compressin on #1... bent exhaust valve. (Pic #2) There is also evidence of the exhasut valve making contact with the top of...
  15. troym

    Thunderbolt V ICM 1997 5.7L

    1997 5.7L, 2bbl mercarb, TB V (w/o knock sensor), Alpha I Gen II. Seems I've been chasing my tail alot with following symptoms, all of which have been intermittent, in no particular order, no appart cause during recurrance and follow-on disapearance of the symptom(s): lack of power, rough idle...
  16. troym

    Timing Cover Missing Timing Marks

    '97 5.7L, 2bbl mercarb, Thunderbolt V, Alpha-I (Gen II). Went to check the base mode timing prior to setting the idle mixture and speed and discovered the timing mark tab missing. There aren't any signs of one ever being there. But it's not immposible that it was broken off and painted over...
  17. troym

    Engine stalls once, then runs great... 1997 5.7 L

    '97 5.7L, 2bbl Mercarb, Thunderbotl V, Alpha I Gen II: After running the boat for about 40 minutes with no apparent issues, stopped and fished for a while. Restarted, and after a about a minute, it stalled. No sputter, no cough, like turning the key off. Restarted and ran fine. After running...
  18. troym

    '83-'90 R/MR/Alpha-I Service Manual (#6)

    Any one have this manual electronically (.pdf file)? Got some work to do on my brother-in-law's boat.
  19. troym

    Running on the muffs >1500rpm

    Was curious about the basis behind the precaution of not running the engine at >1500rpm when using the garden hose and muffs for cooling. The only thing I've found in the books is that the suction of the outdrive water pump (impeller) at higher rpms could collapse the garden hose, restricting...
  20. troym

    Oil Pan Drain Plug

    Are the oil pan drain plugs sealed with some kind of addhesive? Tried to loosen it with what I thought was a lot of force. It didn't budge, and I don't want to risk breaking something. I want to get it loose to flush a little clean oil through the pan. I had water in the cylinders and want to...
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