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  1. Scott06

    2004 Chaparral Sunesta 216 engine not starting 5.0 L

    As mentioned above likely not getting fuel due to filter change. Would also verify you are getting spark. since you changed cap wouldn't be the first time a new part was defective or wire from coil got left off
  2. Scott06

    Gear lube in hull

    Here is a link to the stickies on pressure testing a drive https://forums.iboats.com/threads/drive-pressure-vacuum-check.230980/ input shaft seal is where the driveshaft comes into the upper drive. When you took your drive out the drive shaft has splines on the end with two u-joints. You have...
  3. Scott06

    Gear lube in hull

    Yes if bellows fill up from input shaft seal leak they will end up in the bilge as the bellows gets full. There is a drain hole from bellows into the bilge. It is not a ton of work to do the input shaft seal. You need the merc spanner (or aftermarket copy) to take the big nut off the drive...
  4. Scott06

    Mercruiser 5.0 carb?

    This is not in base mode correct ? Module needs replacement then. You have the thunderbolt V ignition which is fantastic unless u need a new module. Would look for a used module on eBay. I have bought them for around $200 used. New they are expensive enough that people will replace the entire...
  5. Scott06

    Trim/Gear oil mixup

    Doubt it will make much diff or this lube even get to the outdrive, but I use a turkey baster for things like this- suck the reservoir dry. Every couple years I use it to change out my trim fluid - suck it out and refill, run it up and down, refill etc
  6. Scott06

    GM EST Distributor Kit and Mercruiser Shift Interrupt Switch

    If you get the wiring instructions for the est they will have you pick up a 12 v source like the purple igntion wire, run it through the shift interrupt and to the est distributor. When you shift out of gear and the shift interrupt switch gets closed it will send 12 v to est module to stumble...
  7. Scott06

    Mercruiser 5.0 carb?

    It has a reman label on it. Not uncommon to see rebuild shops offering older rochester 2 jets as mercarb replacements. The mercarb was what merc started making when rochester got out of the carb business in late 80 s early 90 s. They are basically siblings. Properly set up should be ok assuming...
  8. Scott06

    Mercruiser 5.0 carb?

    It wont advance in base mode. Do not put it in base mode just check the advance, just want to see if you are getting advance or not should be close to 30 all in
  9. Scott06

    Old 488 replacement idea

    3.0 is most drop in but will give up some power5 hp. 4.3 is more work potentially but makes similar or more power than a 488. what size boat is it in?
  10. Scott06

    Mercruiser 5.0 carb?

    Was looking for the total advance on the ignition. Wondering if module is not advancing. You should have a total advance of around 28-30 degrees by 3 k or so rpm. 10 degrees is correct for a vortec 5.0. yours is a 220 hp engine if you have a 1.62 drive the 19” should work fine If engine is in...
  11. Scott06

    Mercruiser 5.0 carb?

    You say factory prop- what pitch is it and what gear ratio do you have in the prop. What is the total amount of ignition advance you have and what do the spark plugs look like ? Would also think you are heading for a carb rebuild but would verify what prop is on it as it may have to much...
  12. Scott06

    Water pouring from harmonic balancer area on muffs

    No reason we can't have fun here...
  13. Scott06

    No spark issue

    You see a fair number of comments on Pertronix failing. Never had any first hand experience but might be worth a internet search. I see this a lot on the classic car forums I'm on. Delco EST is tried and true OEM quality system
  14. Scott06

    Pre-Alpha drive won't go into reverse.

    This above when you split the halves to do the impeller east to misalign the shift shaft that is cotter pinned in the upper with the splines shaft in lower. Upper shift shaft needs to be straight ahead and lower shaft needs to be I think turn all the way clockwise to be in fwd
  15. Scott06

    2005 Bayliner 175 Mercury 3.0 Mercruiser i/o - Stalling

    I mixture screw not idle speed screw. Idle mix screw is on throttle plate turning it in allows less fuel at idle turning it out allows more fuel at idle. The idle speed screw you reference is the stop that the throttle seats against this determines how far the throttle plates are open at idle...
  16. Scott06

    2005 Bayliner 175 Mercury 3.0 Mercruiser i/o - Stalling

    How did u set the idle mix screw? When you stab the gas are u getting a good stream of accelerator pump shot ? What did contents of fuel filter look like Did u set the ignition timing
  17. Scott06

    Water pouring from harmonic balancer area on muffs

    The 488/3.7 engines were a redhead step child . A lot of mechanical shortcomings in the design. If the boat is worth the effort swap in a3.0 or 4.3
  18. Scott06

    Propless?

    X2 on the 19” as a good starting point. Might be better to rough in wot rpm with less expensive black max props
  19. Scott06

    Mercruiser Shifting Issues

    See attachment from factory manual I found it best to pull the inner core out, then push a weedwacker wire up the cable to the shift plate and tie it off, pull the cable outer sheath out through bellhousing. Use the weedwacker wire to guide the new outer cable up and around the exhaust and...
  20. Scott06

    1988 350 Stumble Problem

    When it happens check spark strength with a spark gap tester to rule it out. I suspect you have a fuel delivery or carb issue. Prob a good carb cleaning will help, but would verify fuel pressure while its acting up
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