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  1. NWVintage

    1988 Sea Ray Seville 21 Cuddy sole & transom rebuild

    Ahoy! As the title suggests, I have a 1988 Seville 21CC and I discovered some rot. Well, I knew about most of it but I've become more concerned about it. It has some weird patterns to it - like it's in some places but not in others where I'd expect it - so, I have some questions about where...
  2. NWVintage

    A unique alignment situation...

    So, there's a long story here but I'll try to keep it to the important details... I am reinstalling my 470. Since removal, I have new rear motor mounts and mounting hardware, a different transom assembly (bellhousing/gimbal ring/gimbal housing) and gimbal bearing. The problem is this: the rear...
  3. NWVintage

    Using a V-8 gimbal housing with a 470 (MR drive)

    For reasons unimportant to this particular question, I'm going to be using an MR gimbal housing from a V-8 with my 470. The question is: what do I do with those two extra exhaust ports? My original had the ports but they were dead-ends - the holes on the outside of the gimbal housing were...
  4. NWVintage

    470 rear motor mounts

    Can anyone shed any light on how to replace the rear motor mounts on a 470? Parts 2 and 3 in Flywheel housing schematic on this page: https://www.mercruiserparts.com/Show_Pictures3.asp?dnbr=75471&ivar=images/CRUISER/75471/28.png&inbr=1592&bnbr=140&bdesc=FLYWHEEL+HOUSING+ASSEMBLY The old ones...
  5. NWVintage

    Gimbal housing swap issue

    Long story short, I'm replacing my gimbal housing, gimbal ring and bell housing on my pre-alpha outdrive. I got the three parts as a unit. I took every measurement that I thought would be important before I undertook the project and everything looked and is good except that the little collar on...
  6. NWVintage

    Drain plug rot prevention

    So, my drain plug has never seated 100%. It's always gone in snug but has always leaked a very small amount of water if I didn't wrap it several times with thread tape. It turns out that the fitting was cracked! I'm replacing it and I am wondering if there's anything that I out do to treat the...
  7. NWVintage

    Best location for a thru-hull fitting

    What is the best location for a thru-hull fitting? I am going to put in a fitting to run a washdown (and possibly a livewell in the future). My plan was to put it in the transom just above and to one side or the other of the drain plug (maybe an inch or so from the drain) but is that the best...
  8. NWVintage

    transom seal kit differences R drive

    So, I'm replacing all of my bellows and whatnot. Discovered a hole in the water hose and decided to just do the whole thing. I am looking at a few different kits online and have noticed a difference between drive seals in kits from different sellers that claim to be the same kit (use the same...
  9. NWVintage

    Mercruiser R pre-alpha bellows gimbal tools

    Hey everyone- 1978 MerCruiser 470 (I know, but I don't have the S/N with me - this is the model year of the engine/drive) Mercruiser "R" sterndrive I'm wondering what special tools I need in order to replace the gimbal bearing, exhaust and CV bellows, and the water hose. While I was checking...
  10. NWVintage

    Charger question: 2 batteries w/ switch but no isolator

    I tried to make the title descriptive... I have a two group 27 dual-purpose wet-cell marine batteries that run through a selector switch. There is no isolator in the system, just the switch. ie. I can choose either or both but the whole electrical system runs off whatever I choose. This boat is...
  11. NWVintage

    470 cooling system clean up

    So, I got this boat last year but I had an issue with the temp on my last outing (killed the engine at about 190deg and got home on the kicker). Hence, I am going through the cooling system properly. I currently have all of the coolant out of the system. I installed a backflush port in one of...
  12. NWVintage

    pre-alpha power trim fluid bleed

    I'm trying to remedy a stuck-in-the-up-postion issue with my 1978 pre-alpha sterndrive (SN 4924523). I need to know how to fill my power trim "reservoir". It is the "older style" metal box reservoir with which the pump appears to be integral. I would like to bleed the system and I am comfortable...
  13. NWVintage

    Merc 470 coolant bypass filter?

    So, with all of the cooling issues with these, has anyone ever considered/tried adding a coolant bypass filter? I know they're generally used on diesel engines, but you can get filters without the diesel coolant additive, so why not? Discuss...
  14. NWVintage

    1998 Mercury 15 hp cooling

    Hey everyone- I recently got a new boat with a 1998 15 hp 2-stroke Mercury kicker motor (S/N: OB293133). The previous owner took the boat to a certified mercury/mercruiser as part of our purchase agreement. The mechanic did not service the kicker but did run it and gave it a clean bill of...
  15. NWVintage

    1978 Glasply 19'6" Hardtop Cuddy clean-up

    Just got a new boat! 1978 19'6" GlasPly Hardtop Cuddy Mercruiser 470 Mercruiser Alpha-one generation one 1990's Merc 15hp kicker w/ hydraulic assist bracket, steering linkage. Eagle FishElite 500C/SeaCharter 500CDF Docking lights 1978 Calkins Galvanized Roller trailer Photos will come soon...
  16. NWVintage

    Possible Mercruiser 470 purchase. Concerns?

    Alright, so I am looking at a new boat. It is a 1978 19' Glasply cuddy with a mercruiser 470 and an alpha one outdrive. I have done quite a bit of research and I am aware that the earlier 470's - of which this is one - had a 3" heat exchanger that did not always cool the adequately and that they...
  17. NWVintage

    1964 Mercury 39 lower unit stuck

    Ok, I'm sure there's a thread about this out there, but I can't seem to find it. I just got a 1964 Merc 39 that I'm going to use for a kicker. It runs great, which is awesome, considering I traded it for a 2wd Toyota fender... I'm trying to get the lower unit off to replace the impeller, but...
  18. NWVintage

    1963 Merc 850 fuel pump comments/question

    I'm rebuilding the fuel pumps (along with generally cleaning/overhauling many systems) on my 1963 Merc 850. First of all, for anyone interested, I wanted to post a link to a parts fiche for this pump. I and a few others whose posts I found have taken them apart and not been positive how the...
  19. NWVintage

    1963 Merc 85 hp won't run...

    Ok, so there's a long story surrounding this but I'll get right to the point. I had this motor running and running pretty well (for the first time since I've owned it) a couple weeks ago. It was running finally, so we took it out. No problems. Shut it down and started it back up a few times...
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