Installing Closed Cooling On An Old Engine

I’ve had at least 10 people ask me about this subject again this week. I’m not sure what’s triggered the rush on this subject again this week but thought I would go ahead and provide the link to where we addressed it again for those interested. The link on the website goes into detail regarding this topic along with some other helpful hints for those Do-It-Yourselfers. Let me know if you need specific help and I will be happy to email you one on one. Thanks Again for following us, we hope you will find the information useful!

Installing a Cooling Kit on an Old Engine

  • Share/Bookmark

15 Responses to “Installing Closed Cooling On An Old Engine”

  1. Doug says:

    I have a 1987 Four Winns w/4.3 TB that ended up with a cracked block. I was told that If I found a 4.3 out of a light truck app, that had the mechanical fuel pump set up,(Found a factory rebuilt 1986 4.3 w/highrise manifold,Quadrajet 4 barrl,and stainless steel headers),,,, and switched all of the bolt on components( starter,Alt, water pump,intake and carb, exhaust,ignition,freeze plugs, heads, cam,flywheel,)(basically everything but the block,rods,crank, and pistons) and use marine app gasket kits, I should be ok. Now I also plan to install some rubber shock pads between the motor and the boat under the motor mounts.. First ?,,,am I on track here? 2nd ? I cannot seem to find where the marine motor was manufactured, and if the heads and cam are compatible with the Tonwanda or the Romulus engine setup!! I’ve spent several hours trying to get straight answers and seem to get the marine peoples opinion,and the determined mechanic opinion, and don’t know who to believe!! I just want my boat back,,,,,,for good!! Would appreciate any insite you have besides putting out 2-3 grand for a new boat motor!! Thank you!!

  2. alogan says:

    Doug,

    This is a fairly common question. The truth is that the marine engines are in fact different than the automotive variety. The “marine” engines came from the Tonawanda facility but now come from Toluca MX. The cam is different, the valve guides are different, valve seats, bore tolerancing, etc. In my experience you can use an automotive engine in a marine appication and make it functional however there are some differences and the product just won’t last as long. The best example I can give you in thinking about why is how often do you run your car engine for extended periods of time at 3,500 – 4,000 rpm which is very common for a marine engine. The “Duty Cycle” requirements for a marine engine are different than automotive and therefore to make it last like it is supposed to this operating criteria is taken into account. Therefore the casting level of the block may be the same p/n however they machined the bore with greater tolerance ranges for this purpose on certain applications, made adjustments to the valve seats for extended running at laoded conditions, etc. Here’s a link to more technical information.

    http://tinyurl.com/3xvru29

    http://tinyurl.com/y93z2gc

  3. perry says:

    pseudonym@someonell.kindergarten” rel=”nofollow”>.…

    thank you!!…

  4. gordon says:

    aggregation@sparkles.livelier” rel=”nofollow”>.…

    ñýíêñ çà èíôó!!…

  5. Julian says:

    safeties@acquiesce.conning” rel=”nofollow”>.…

    thanks for information….

  6. marc says:

    coloration@isopleths.camper” rel=”nofollow”>.…

    ñïñ….

  7. marion says:

    sobbingly@analeptic.juliet” rel=”nofollow”>.…

    hello!…

  8. kurt says:

    igor@conscientious.shepard” rel=”nofollow”>.…

    ñïñ!!…

  9. fredrick says:

    determines@maps.nunes” rel=”nofollow”>.…

    ñïñ çà èíôó….

  10. Ryan says:

    feversham@rehearsal.homogenate” rel=”nofollow”>.…

    tnx for info!!…

  11. harold says:

    streaked@biopsy.assertions” rel=”nofollow”>.…

    thank you!!…

  12. dwight says:

    tonio@inspiration.bottles” rel=”nofollow”>.…

    good info….

  13. francis says:

    mollify@entourage.indies” rel=”nofollow”>.…

    tnx for info!!…

  14. George says:

    counterchallenge@stabs.fallible” rel=”nofollow”>.…

    thanks for information!!…

  15. Zachary says:

    thatched@comprise.toscaninis” rel=”nofollow”>.…

    ñïñ!!…