Search results

  1. J

    470 valve cover gasket

    Anybody know the part number for the valve cover gasket and torque specs for 1984 470 also can I use a ford 460 gasket from autozone ?
  2. J

    Mercruiser 470 stalled

    Hi everyone I took the boat out for 16 mile run then while I was trolling in died I checked spark it seemed ok I also pump the throttle and 2 streams of fuel went in to the carb not sure how much or if it is not enough of one or the other any help is greatly appreciated
  3. J

    Oil leak from behind prop not prop shaft

    Hello I changed my prop today and saw oil all on the bottom its not coming from the shaft but further in I think from the carrier bearing from what I tried to find online how hard is that to remove and can I get it off easy
  4. J

    Does lower rpm mean better fuel economy ?

    hello all i just changed my prop to a 4 blade 18 p ( mercruiser 470 engine alpha 1 ) my question is does lower rpm meann better gas economy i now can cruise at 3000 rpm and be at 20 mph . if i go up to 3300 rpm i get 24-25 mph is it what would give me more fuel economy thanks jeff
  5. J

    Mercruiser 470 ignition coil

    Hi guys well on sat my coil let go it only last a year and half cheap coil from napa what is a good coil to replace it with . Iam still running points
  6. J

    Mercruiser 470 charging problem

    Ok guys last year my charging system was working but it would go up to 15 16 volt some time and then back down . This spring I did my cam seals and got a alternator conversion the Wagner kit uses the two bolt holes that the a/f res bottle mounts to . My problem is that I installed it and after...
  7. J

    Mercruiser 470. Overflow tank

    Hi guys as many of you know I did my cam seals and upgraded to alternator on my 470 . My question is I filled the riser /res. with a/f. And left nothing in the over flow tank I took the boat out and the over flow tank has a/f in it now . The next day I open the radiator cap and I was a little...
  8. J

    Flushing engine to get antifreeze out of oil

    Hi guys I have fix me mercruiser 470 but I have some frothy areas in my valve cover Is there some thing I should do before i launch the boat? I change the oil. Do I just run it a little then change oil again or do I use a flush in a bottle to help clean the inside of the engine ? I read of...
  9. J

    mercruiser 470 cam seals repair

    Re: mercruiser 470 cam seals repair
  10. J

    mercruiser 470 cam seals repair

    Re: mercruiser 470 cam seals repair
  11. J

    mercruiser 470 cam seals repair

    Hello Guys still dealing with this 470 i have been have a/f getting into my oil after finding out that my e/m riser was gasket was leaking i removed and fixed that pressure tested and that is ready to go back on the engine thanks to all the help i received from this site. Now i pressure tested...
  12. J

    mercruiser 470 riser gasket

    hello Iam having problems getting my riser gasket to seal up right i put a new gasket and it still leaks i even tried two gasket has anybody ever tried rtv sealant or any other kind ? And had good luck. I know merc says dry but thats not working for me thanks in advance
  13. J

    Mercruiser 470 pressure test

    Hello guys iam trying to find out why a/f is getting in my oil I took the exhuast manifold off .caped off the front hose coming from the head hooked up pressure tester to the hose coming from the intake manifold pressure tested and it holds 15 psi Aim I safe to say that my engine I.e head...
  14. J

    mercruiser 470 a/f in oil

    hello everybody Ive been dealing with this problem since last season a/f getting in to my oil i pressure tested the system and it loses pressure. last season i changed the exhuast manifold to aluminium one because i could not get the old cast one to seal up at the riser gasket. so i upgraded...
  15. J

    mercruiser 470 loosing a/f

    hi guys iam posting a new post because the other one was getting to long . any way iam losing a/f i changed my exhuast manifold and before i put it on it held 15 psi on the test bench . also I pressure tested the engine it held 15 psi for over an hour until i took the pressure test off . my oil...
  16. J

    alpha one water pump

    hello everbody wondering if any body ever used sierra of glm water pump kits of should i stick with mercruiser brand /alpha thanks in advance
  17. J

    Mercruiser 470 witerizing

    Hello. I have read that all I have to do is pull the after plug and drain the raw water and iam done . Is this true ? Last year my friend helped we did 5 gal of antifreeze thru muffs thanks again.
  18. J

    1984 mecruiser 470

    Hi guys ive been dealing with A/f in my oil for a while which i switched to sraight water instead of a/f changing oil alot !!! checked weep hole a few times a ran paper clip thru and never and water /a/f came out . it has a new riser my next step is headgasket any tips would be great thanks.
  19. J

    470 riser gasket

    hello guys has anyone ever use a sierra riser gasket on the riser of a 470 ? the one i pulled off was like steel in the middle and new one was green fiber material . i still am losing coalant and i dont know if its because of this thanks for help guys
  20. J

    a/f in oil 470

    Hey guys just want to make sure iam heading in the right direction iam losing coalant and my oil isnt milky on the dip stick but its getting higher i drain some oil out and it is milky . i checked weep hole and ran a paper clip thru nothing coming out . compression test came back good 135 to...
Top