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  1. AShipShow

    Replacement Exhaust Manifolds for Merc 496

    Heres a couple boroscope images.. Last image is the worst one, but I'm not so sure its flaking rust vs dirt lodged down in the bottom corner.
  2. AShipShow

    Replacement Exhaust Manifolds for Merc 496

    Yea, the inside of the manifolds is basically like a thin brown dust kinda like you described... There are a few areas that look like they are darker, but its weird, they are like kinda shiny, not so much a normal rust look.
  3. AShipShow

    Replacement Exhaust Manifolds for Merc 496

    Sorry, I guess what I said is confusing now that I read it back... I removed the elbow, but I stuck the boroscope in the manifold, not the elbow (since its stainless, I wasn't worried about it). Good to know about Barr, at least saves me a couple hundos.
  4. AShipShow

    Replacement Exhaust Manifolds for Merc 496

    Just took the starboard elbow off and stuck my boroscope in both sides and to be honest I was shocked how good they looked... obviously some corrosion but no flaking rust... I also reached out to the broker who I bought the boat thru and he said they almost never see failures of those manifolds...
  5. AShipShow

    Replacement Exhaust Manifolds for Merc 496

    Didn't think about it until just now, but i just bought a fancy little boroscope... maybe a good opportunity to try it out... maybe inspect the cooling passages as well as the actual exhaust ports for signs of rust.. Still no way of knowing how thick remaining cast iron is tho
  6. AShipShow

    Replacement Exhaust Manifolds for Merc 496

    I don't really know yet.. I haven't removed the elbow or manifolds yet... That being said, even if I can see in there, theres guaranteed to be rust... I think the issue is, theres no way of knowing how much wall thickness remains. The boat was used in the middle chesapeake, in the DC area, so...
  7. AShipShow

    Replacement Exhaust Manifolds for Merc 496

    Does anyone have any recommendations for a decent aftermarket option for exhaust manifolds? I'm thinking of replacing them on my 2006 project boat and I don't know if they've ever been replaced so looking at doing it as a preventative measure, but I don't love the almost $1500 price tag for OEM...
  8. AShipShow

    Merc 496 Mag Compression and Leakdown Results

    I don't know how full it was as it was empty when I got it but the starter is the only thing that is really rusty so I think that's as high as it got... But honestly, it could just be from normal corrosion too.. but it seems more than coincidence that most of the rust is on the seawater pump...
  9. AShipShow

    Merc 496 Mag Compression and Leakdown Results

    LOL.. There are some definite issues that I'm starting to uncover.. The quick backstory.. bought this boat (28' Campion cabin cruiser) knowing full well it was a project... I pulled the motor mostly because I wanted to have better access to evaluate everything on the engine and it will make...
  10. AShipShow

    Merc 496 Mag Compression and Leakdown Results

    Yea, I was looking through the spark plug hole with a light as my wife was turning the crank and when it stopped moving I had her stop... This worked perfectly fine on all other 7 cylinders and I even tested cylinder 6 twice so I'm pretty confident the crank was in the right position. Funny...
  11. AShipShow

    Merc 496 Mag Compression and Leakdown Results

    Glad to hear others on the same page as me... especially looking and seeing what a new gasket set alone costs 😧 Once I get done with a few other checks, I will try running it and retest the leakdown on cylinder 6... Hoping it gets a little better but even if it doesn't, I'll probably run it as...
  12. AShipShow

    Merc 496 Mag Compression and Leakdown Results

    Hi all, I'm tearing into my new-to-me 496 mag (0W358880) and did a compression test and leak down test. The motor has been sitting winterized for about 3 years so wasn't sure what to expect. The motor is currently in a cradle in my garage, not in the boat The compression results were from...
  13. AShipShow

    NLA Mercruiser Parts

    Not available 😁
  14. AShipShow

    NLA Mercruiser Parts

    I did... he responded a couple days ago and said he is working on getting them made since he can't source them anymore and should have them available in a few months.
  15. AShipShow

    NLA Mercruiser Parts

    Hi all.. I'm not sure how useful this is, or if its already posted somewhere, but I thought this might be of use for those of you that are trying to source parts that are no longer available from Mercury/Mercruiser. I ran into this issue trying to find a fuel rail for a 496 MAG (8.1L). This is...
  16. AShipShow

    Bravo 3 Refresh Questions

    Phew! Glad to hear that... This project is already adding up fast and I'm only into the drive so far... I wasn't looking forward to dropping another grand in tools just so I can take it apart and inspect. Thanks for the feedback fellas.
  17. AShipShow

    Bravo 3 Refresh Questions

    Hey guys, Just a bit of quick background: It's been quite a while since I've lurked around here since I finished up my 96 Bayliner restoration... Well, I got the itch again and have bought a 28' cabin cruiser with a Mercruiser 496 Mag HO paired to a Bravo 3. I'm starting to dig into the drive...
  18. AShipShow

    1985 Bayliner 2750 Ciera Sunbridge Resto

    yea, your on the right track with painting aluminum... I don't know if dish soap really does much other than get rid of any grease or oil, but I usually just use acetone for that.. The key is the primer... self etching primer is decent, but for the most durability and adhesion, you want to use...
  19. AShipShow

    Durable Paint for My New Boat Deck??

    I used iterlux brightside 1part poly paint... it rolls and tips excellent, but not incredibly durable... after a year, there are a few small chips but the good thing is it can be repaired super easy... If you are going for a shiny finished look, I'd highly recommend using duratec with the gelcoat.
  20. AShipShow

    Question on poly and Epoxy prices

    I think the "parts store" resin is the key here... if you mean autoparts store, then its most likely not laminating resin... it probably has the wax in it to fully cure so it can be sanded for body work... Maybe I missed something, but that would be the smoking gun in my opinion... As others...
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