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  1. Scott06

    Mercruiser 3.0 No Spark issues

    I'm not sure if you are using what alldodge posted in post # 21 or the link I sent . In test #2 in what alldodge posted tests coil for short to ground same test is in #1 under ignition coil test in what I posted. If coil has short to ground I would expect no spark. Also as mentioned stick...
  2. Scott06

    Mercruiser 3.0 No Spark issues

    I would verify that since you have 3 tests not getting any ohms , also I assume coil isn't shorted to ground? You didn't mention that
  3. Scott06

    Mercruiser 3.0 No Spark issues

    As long as you got a good connection when sticking in terminals b,c,f meter probes may be too fat to get a good connection to the blade terminal inside of there.
  4. Scott06

    Extended Warranty

    I generally decline them, as I figure the manufacturer wouldn't offer the warranty if they didn't make money on the warranty sale and I am one of the weirdos who actually enjoys working on stuff so I am only looking at potential parts cost. Now if you are the one out of 100 who has a big issue...
  5. Scott06

    3.0 mercruiser ran for 5 min good. Then Just died?

    I would also check the anti siphon valve in fuel line by tank pick up is opening and flowing, also worth checking fuel pick up tube screen for debris if this hasn't been done. Some pick ups have a somewhat hidden screen in the pick up tube.
  6. Scott06

    Mercruiser 3.0 No Spark issues

    I think this is out of a VP manual but outlines how to narrow it down https://f01.justanswer.com/oldnewenglandmarine/deacd8eb-a4ca-4db4-9bec-6e9bb71197e7_Delco_EST.pdf
  7. Scott06

    Mercruiser 350 heads

    If you have to change the intake anyways go with the votec heads you wont regret it.
  8. Scott06

    Osco? Ever wonder what happened?

    If you are bored here is a court filing between Osco and one of their suppliers from years back . It specifically mentions some part of the agreement or actions taken by supplier interfering with potential sale to sierra...
  9. Scott06

    Mercruiser 4.3 Water in Oil

    Agreed you want to pressure test cooling system with intake on it. Could be a leaking intake gasket at water crossover. Maybe head bolts that go into water jacket ? wondering if break in lube used during assembly might be cloudying up the oil, or did u change it already? Either way would buy...
  10. Scott06

    Mercruiser 140 Points to Delco EST results in low RPM at WOT

    Agreed
  11. Scott06

    Mercruiser 140 Points to Delco EST results in low RPM at WOT

    Ok yes i used the term base instead of while in base mode set the initial to 1 deg….Still doesn’t change the fact that at one point merc used 8* initial with 36* total, and changed it to 1* initial with 23* total for some reason with engine rating at 135 hp
  12. Scott06

    Mercruiser 140 Points to Delco EST results in low RPM at WOT

    From the 8* BTDC listed in post #10 its quite different.
  13. Scott06

    Mercruiser 140 Points to Delco EST results in low RPM at WOT

    I recall seeing but cannot find at this moment a service bulletin on retarding the timing on some 3.0's that were blowing head gaskets, even included a sticker to cover the timing spec on the flame arrestor. I think they moved base timing back to 1 * ATDC.
  14. Scott06

    Ford 302...21 foot fiberglass with cuddy

    No wouldn't worry about the 14.5 to 15" diameter. typically within a prop family as pitch goes down you will see diameter increase. I think the TP 19"Pitch is 14" dia, 17"P is 14.5" dia , 15"P is 15" dia...
  15. Scott06

    Thermostat

    Thats a delco est no need to swap it for pertonics here is the install manual for the EST http://marineengines4less.com/images/companies/1/EST%20Ignition%20Instructions%20-%20ME4L.pdf?1431462059320
  16. Scott06

    Ford 302

    As Chris mentioned make sure to maintain your exhaust (if you have a half system) and or elbows (full system) to keep water out of the cylinders ...
  17. Scott06

    Mercruiser 140 Points to Delco EST results in low RPM at WOT

    http://marineengines4less.com/images/companies/1/EST%20Ignition%20Instructions%20-%20ME4L.pdf?1431462059320 Page 7 has all the EST timing curves in terms of base and all in degrees/rpm for all models
  18. Scott06

    Ford 302

    Fresh or salt water? Change the oil and lube a 1500 -plus hours should be no big deal. You may run into the issue with MC-1 parts becoming obsolete, drive can be replaced with R/MR/Alpha gen 1 as a bolt in but trim/trnasom housing may be an issue Typical lake use in northern climates where...
  19. Scott06

    Mercruiser 140 Points to Delco EST results in low RPM at WOT

    I think the head design and ports also changed around 1990 or 1991 Quicksilver lists 3 somewhat diff part numbers for 3L heads 938 8M0115134 for 68-94 3L 938 8M0115135-1 for 3.0LX 90-97 938 8M0115135 for 98 and up
  20. Scott06

    Mercruiser 140 Points to Delco EST results in low RPM at WOT

    Give it a try the merc thunderbolt 4 & 5 for V6 and V8 use 8 and 10 degrees base timing and has a similar advance at idle. I would think 8 or 10 degrees would get you close enough to the factory advance it should run well at WOT. Would set it to 8 run it and see if you have detonation then...
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