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  1. R

    Pertronix question.

    well you inspected the ignition timing look it up ... around 1100 rpm and then use the timing . did your engine and use the ignition timing .......... also those carbs are new and those parts are in the carb defective parts. my engine merc 470 is the spec manual merc OEM 8 deg ... then the...
  2. R

    What to do with my two 470's?

    my 470 engine is great 1978 ....I was changing the ignition timing 2 deg lower . then the engine oil is the SN PLUS 4-6 oz.....additive . also the heat exchanger is putting in the zinc drain plug ..the fall was the marvel mystery oil one oz in the cylinders ..... the outdrive in the fall take...
  3. R

    Pertronix question.

    I know the carb is the parts inside the carb , did a damage ,,, the ignition is the correct spec deg and the engine RPM ....
  4. R

    Alpha one gimbal ring bearing replacement

    that gimbal is very good no corrosion ..
  5. R

    Alpha one gimbal ring bearing replacement

    yes I did the grease fittings gimbal bearings .. every year several times ..
  6. R

    Gimbal bearing/bellows?

    the post is of the maintenance ...then the boat engine mechanic takes the engine boat to fix it ..
  7. R

    Gimbal bearing/bellows?

    I did the the fall of the outdrive, take it out ... inspect it and lube the u joints and the shaft .. clean the bellows rubber see if its worn. inspect the oil outdrive . many people inspect the aluminum corrosion then the bellows are a sand paper alum ....
  8. R

    4.3 dying when putting it in gear

    inspect the shift switch ... probably lube it in the back of the top engine area .. I was lubing it every year ...
  9. R

    Winterizing indoor stored boat.

    I winterized my boat over 35 yrs ...working great ...I was using my engine/outdrive ...pictures posting ...
  10. R

    Winterizing indoor stored boat.

    I sucked out the gasoline ... also I inspect the out drive take it off lube it and inspect the gear oil,, gimbal housing is inspected the bellows is very clean and no wears on it .. no cracks .. you also did my engine in the winterize it ,, good job ///...
  11. R

    Replacing 5.0 oil pan, gasket, bolts

    GM did 2007 and new the CCP parts are damaging .. plastic parts LOL !!!
  12. R

    Engine flushing

    I did the heat exchanger coolant on my MCM470 . I used antifreeze coolant 65% distilled water 35% ... the engine has the pervious owner [1985] ... THEN did the coolant pump [WATER ] then the CAM SHAFT CORROSION AREA..OF THE COOLANT SEAL PUMP...I did the cam shaft cap to setup the cam rod [heat...
  13. R

    470 swap to 4.3

    the engine is the wrong timing ... cylinders pistons are like a fire piston then it is seized ... hot !!!
  14. R

    470 swap to 4.3

    my 1978 MCM470 a carb 2barrel 170HP.. I bought it in 1986 ...I winterized it now .... the engine oil is 15-40 wt ... I put sn plus 4OZ in the oil ... and I used 93 octane gasoline with the marvel mystery oil 2 oz in 10 gallons ... the engine runs great . no damage , also the flat tappets have...
  15. R

    Trim cylinders only retracting halfway

    the trim pressure motor had the motor was not working ...looked up the connectors and also remove the motor brushes and the armature had a bit of corrosion .. other trim cylinders had seals breaking down ..
  16. R

    Reverse engine lock won't hold on vintage Mercruiser IO 153 cu.in. 120 hp engine

    you have to troubleshoot the outdrive up/down ... electrical or the cylinder .. https://www.marineengine.com/parts/mercruiser-sterndrive-parts/120140-19671969/2062141-thru-2791956
  17. R

    Alternator wiring issues

    so you ran the engine the alternator is 15.5 VDC ..then the battery is 11.8 VDC ... did you inspect and clean and tighten the connectors or the battery switch ..USE A VOLTMETER .....WIRE BRUSH IT ON THE CONNECTORS . USE THE COPPER SCREWS/BOLTS NUTS ............
  18. R

    Deleting the voltage regulator 470

    my MCM470 engine replaced it the voltage regulator ....then 3yrs the regulator is dropping the voltage currents. then I updated the alternator many years ago ..I did not remove the voltage regulator ... I did not replace the hose .... so if you replaced that hose or with the connector ... the...
  19. R

    Time to chuck the 470

    look up the 470 used parts exhaust manifold .. my 470 engine has the coolant and the distilled water .... I did not use the coolant leaks .....1978 eng 470 ...
  20. R

    Stern Drive to Alpha One?

    did your MR outdrive is 46 yrs ? in todays world the outdrive is breaking down around 5 yrs ... LOL .... inspect the old outdrive do the water pump flush out the gear oil...inspect the air pressure ....the time is 7-10psi .. 3 hours pressure is correct PSI.. post you picture ..
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