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  1. Scott06

    GM EST Ignition on Big Block Crusader

    I understand what you are seeing … when you remove the timing shunt it will come out if base mode and start advancing the ignition timing, thats how it works to find best running conditions. I assume when you come out of base mode rpm picks up? For example If you Google Delco EST you will find...
  2. Scott06

    GM EST Ignition on Big Block Crusader

    You seem to be ignoring what i posted and you dont understand how base mode works. It is normal when you take it out of base mode it doesnt stay at the static setting when it is is out of base mode. Youve tried now three modules with same results right …
  3. Scott06

    GM EST Ignition on Big Block Crusader

    First get a new battery And make sure cables and connections are clean. I think your module is working properly. When you lock it in base mode you are locking out the electronic advance. When you come out of base mode the ignition should advance like you see, it wont stay at 12. if you can set...
  4. Scott06

    Santa brought me Smart Tabs.

    I wouldnt run both the fin and the tabs but i have had nice results on a previous boat with the fin. Nice improvement in holeshot for $35 On ‘91 Sea Ray 170/3.0. when you are 250 lbs and depending on a 3.0 to drag you up skiing they helped. Are there better options now sure, but were talking...
  5. Scott06

    Mercruiser 3.7 (470) wont turn all the way

    Seriously just asking this not looking for an argument, then why did you take your 3.7 out ?
  6. Scott06

    Mercruiser 3.7 (470) wont turn all the way

    The other pain point on these is cam to water pump seal ends up putting AF in oil.
  7. Scott06

    Alpha1 350 raw cooled boils and ticks rapidly after short time on muffs

    Mine is carbed and has the 160 from factory, wasn’t just efi
  8. Scott06

    1973 Sea Nymph COHO 16 Transom

    It may be tough to find people with first hand experience on a 50 year old tinny. My thought is its good you are replacing the wood, and no I don't see an issue with replacing the bolt as is. the force of the engine will be pushing against the transom. Only other option if it really bothers you...
  9. Scott06

    Alpha1 350 raw cooled boils and ticks rapidly after short time on muffs

    Agreed my 04 had as OEM a 160 stat for raw water cooled
  10. Scott06

    Volvo Penta EVC tachometer LCD

    Thus is an add for repair service https://www.ebay.com/itm/VOLVO-PENTA-EVC-EDC-UNIT-REPAIR-/223667805296?mkcid=16&mkevt=1&_trksid=p2349624.m46890.l49286&mkrid=711-127632-2357-0
  11. Scott06

    5.7 truck cam vs marine cam

    Sounds like you are all dialed in good deal on the prop to pulley tear out. I did a similar repower a few years back , bought a great condition boat with known cracked block. Enjoyed the project and saved a bunch of money. Put some pics when u get it done
  12. Scott06

    5.7 truck cam vs marine cam

    Good deal. I assume you know that you will need to swap out for marine head gaskets, brass freeze plugs, and use a Marine water pump? Also use the elctrical and fuel components that are marine rated . that should be a nice power upgrade
  13. Scott06

    Mercruiser 3.0 135hp 2015 - Ignition fuse location????

    Some times the power is daisy chained through the gauges in series. check for 12 v supply to key switch. May have missed a wire connection on suuply power when replacing gauge
  14. Scott06

    5.7 truck cam vs marine cam

    Agree leave the truck cam will work just fine
  15. Scott06

    228 oil pan/timing cover leak

    Check if oil pan or timing cover has corrosion on it, if severe may need replacement
  16. Scott06

    Questions about Reversion on 454 Engines

    Yes it is a high performance thing have a hot cam in there with lots of overlap it will create reversion. Stock cam timing etc no problem, only an issue with modified engines.
  17. Scott06

    Ran motor (in driveway) without oil in lower unit?

    Those are exhaust shutters that go in the top of the exhaust down pipe justbelow the exhaust elbow. Must have been over heated at one time. Replace it
  18. Scott06

    Old ford 302 no spark

    x 2 on machine shop. Usually something is wrong with valvetrain geometry when this happens. Typical is valve job is done someone may have upgraded to positive seals or higher lift cam and not machined guides down properly, retainer can hit the seal causing bind, valve could be hanging up. I...
  19. Scott06

    No Clue Engine

    I think 125 ish is generally where you consider it worn, gets about 100-110 and you have non functioning cylinders. i had a 3.0 with about 800 hours and still had 145 compression across the board
  20. Scott06

    No Clue Engine

    That looks like it was repowered with a partial engine package. The U bracket that holds the coil, circuit breaker Etc looks very similar to what places like michigan motorz, marine power, etc sell with their partial engine packages. This is a link to one...
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