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  1. Scott06

    Mercruiser Engine ID - No serial number

    That is a much newer cast valve cover with ribs on it. I had a similar valve cover on my 1991 vintage 3.0. So likely you have a newer 3.0/135 hp in there, which is not a problem, but is likely why you are missing the engine number ...might be a non Mecruiser replacement long block which again is...
  2. Scott06

    Mercruiser 140 winterization.

    You basically have it. SD is correct The large J hose can trap water. For many years i mistakenly never took mine off only the drain plugs never had an issue but i did find ice in it one spring when i did an early summarization, so water can freeze and damage circ pump. no other trap cavities...
  3. Scott06

    Ford 302 pinging

    no you need to pump the throttle to set the choke (close it), advancing it in a boat works like the fast idle cam on a automotive application does. the combo of coke closed (is yours adjusted right) and slightly open throttle pulls more fuel in to richen the mixture. If you had fuel...
  4. Scott06

    Rainbow Exhaust 5.7 Mercruiser

    that looks more like gear oil than gas to me. I would check your drive for water intrusion and look at remote oil reservoir lines up in transom housing Are you loosing gear oil volume - doesnt take much. Had a visually identical seen on my jetski a few years back was thinking it was too much...
  5. Scott06

    Ford 302 pinging

    Had to move past beers to margaritas...
  6. Scott06

    Ford 302 pinging

    This will make you feel better about your boat- took me 30 years from when I bought it as a non running/ non driver project to get it road worthy..
  7. Scott06

    Can a old mercruiser motor run very well with following pressures?

    Get it up to temp and it will be higher. Given age of engine it likely sat so may need to free up some rings and valves once it gets going. May want to soak cylinders with marvel mystery oil and use merc pwoer tune or other top engine cleaner to get carbon out once it is running. Bottom line...
  8. Scott06

    Ford 302 pinging

    Certainly understandable, you want to get it to the point where you mostly turn it on and use it vs working on it. Personally would hold off and get a 4 bbl as the rochester if jetted correctly should work fine. Unless there is something wrong with it you wont see any gain Just getting a new 2...
  9. Scott06

    Can a old mercruiser motor run very well with following pressures?

    125 is a bit low but would expect it to run ok. might need valve work or rocker adjustment on the cylinder that is low whats the history on it
  10. Scott06

    Ford 302 pinging

    Ho did it run after that was pinging gone? 500 cfm will be fine for a 302 nit sure what ebay link you are referring to. Unsure if omc uses a different throttle linkage.
  11. Scott06

    Priming a Rebuild Engine

    Sounds like you were able to index the drive shaft back in the oil pump, if so i would drop the distributor in there remove spark plugs bump it on starter to ensure oil is moving up to rockers and building pressure. If so then you should be good to go.
  12. Scott06

    Ford 302 pinging

    @Jakem- before you put a new carb on did you resolve the fuel contamination issue ? You dont want to pollute a new carb with debris Would also recommend a 4 bbl if you are going to upgrade, I saw much better mid range throttle response when I went from Mercarb to Edlebrock
  13. Scott06

    Mercruiser 5.7L Major Oil Leak Underneath

    Do you have blow by on engine that may induce leaking from crank seals under load and not show when idling on the ground? First thought is rear main seal or core plug in back of block where cam goes Where was the oil on the engine when it was removed?
  14. Scott06

    4.3 dying when putting it in gear

    Disconnect the interrupt switch and put it in gear. If it is the switch it wont stall out, if it does look for other carb or ignition issues.
  15. Scott06

    Volvo Penta BB260 Ignition Coil

    If resistors were bypassed would think boat originally had points and was converted to electronic . As with other comments post a pic of what ignition system you have as it would be odd for someone to refit a Merc Tbolt to a volvo. Wondering if it is a Delco EST and OP is mixing up nomenclature?
  16. Scott06

    4.3 dying when putting it in gear

    Watch the shift plate when you shift see if it is tripping the interrupt switch. if it is take the lower shift cable off shift plate yiu should be able to shift it easily. If not pull the drive and see what is hanging it up. would find it odd to be the cable since it was just replaced, but that...
  17. Scott06

    Priming a Rebuild Engine

    I would get a scope camera and look if the retainer sleeve is still on the oil pump if it is you can probably get the drive shaft back in with some finagling and cursing … if it fell off into the pan you have to pull the motor.
  18. Scott06

    Ford 302 pinging

    It is big enough for your application. A 5.0 engine up to 5 k rpm doesnt need much.
  19. Scott06

    Ford 302 pinging

    fWIW looks like these came with both Holleys and Rochesters originally https://www.marineengine.com/parts/mercruiser-sterndrive-parts/888-2-bbl-ford-302-v8-19711977/3108723-and-up
  20. Scott06

    Ford 302 pinging

    That is a good idea see what it is at wot
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