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  1. tater76

    Lower Unit Swap? 85hp Chry lower to a 70hp Chry? Would it work?

    Hi there, so just like the title says, would a 72 85hp Chrysler lower unit fit a 72 70hp Chrysler? I don't have a 70hp to compare, so just wondering if anybody would know right off the top of their heads ;) Thanks in advance
  2. tater76

    Have you seen this? Where do I get a racing lower unit like that? Is it possible?

    So I found this youtube vid of an annual meetup of vintage race boats. There seems to be quite a few Chryslers present, (watch past the first minute or two) that are super hot. I know they are sweet to watch, but I wonder how hard/expensive it would be to replicate? The lower unit's are tiny...
  3. tater76

    Correct timing setting for an 83 60hp?

    Hi folks, just like the title says, what's the called for number when setting time statically? Any info would be greatly appreciated. Also, how do I bypass the interlock switch so I can crank while in gear?
  4. tater76

    Has Anyone Updated Ignition on a 105hp?

    Hey folks, so I just aquired a 68 105hp Chrysler for cheap. I was just wondering if anyone has converted one to a newer style ignition system? Is it possible? I just don't like working with 44 year old electronic components. Oh.. and what size pistons are in it, (I dont have a manual that covers...
  5. tater76

    Jet Jon... Good Idea? or Blasphemy?

    Hi folks, so the other day I saw a Youtube video of a 12ft tin boat with a 750 jetski motor in it. It really peaked my interest, and upon further investigation I found that our New Zealand friends build these little powerhouses from scratch and have been for years. I think I would like...
  6. tater76

    1995 120hp Force Shift Rod Mistake

    Hey folks, so I screwed up after hurrying though an impeller change on a 95 120 Force. I forgot to put the shifter in forward before pulling the lower :facepalm: My brain tells me that to reinstall, I just need to shift the handle into forward, then turn the shift coupler on the lower until...
  7. tater76

    What years of tilt & trim units fit my 89 85hp Force?

    Hey folks, so after some research through the forums, I have not been able to narrow down the years of tilt/trim units that will fit my 89 85hp. I saw a used 99 unit on craigslist for $250, and that got me thinking :) Any help is appreciated.
  8. tater76

    What are my Lower unit options??? 94 1/2 120hp Force

    Hey again folks, so just got done building a 94 1/2 120 hp Force. The crank was bad and I ordered one off of eBay. Got it all put back together only to find that my 15 spline crank will not accept my 13 spline driveshaft... DOH!! So... my options are limited due to money (can't just buy another...
  9. tater76

    Updated Ignition Conversion Video!

    Hey folks, so last August I had a thread going that covered my retrofit of ignition parts from an 89 85hp to my 74 75hp block. Long story short. I forgot to upload video of it running, and a general overview of what it looks like. As per the rules I will not ressurect the old thread. If anyone...
  10. tater76

    Anyone have any leads on this carb kit? FK10125

    Hey folks, so I am rebuilding a set of carbs off of a 89 85hp Force for a friend, and wanted to try to save him as much dough as possible. I have looked around alot, and the cheapest is about $19-20 bucks per carb + shipping. I have not bought a carb kit in a long time, just usually clean them...
  11. tater76

    Any explanation for this????

    Hello everybody, just wondering if this has ever happened to anyone else, and what causes the gasket to fail. I bought the 79 85hp for $100 knowing that the comp on #1 was 75. I pulled the head only to find no folded rings, no damage at all. Thats when I saw the gasket. What would cause this...
  12. tater76

    1958 Elgin Skipper 35hp... Whats it worth?

    Hello everybody, I am in need of some advice. I am trying to sell an old 1958 Elgin Skipper 35hp for a friend of mine. What I need to know is, is there any value to it? Its complete, it turns over, the lower unit is good, but it needs a full resto. Any advice would be greatly appreciated.
  13. tater76

    Has anyone run dual Chryslers?

    So as a tinkerer at heart, I had a lightbulb idea the other day while staring at my two 55hp Chryslers. What if I run them in unison? The transom on my boat is rated for 150hp and has enough space, so???? What I am in need of now is control ideas, linkages, etc... anybody out there ever tried...
  14. tater76

    Advice on Transporting Disabled Aboard

    Hey folks, I am new to this particular forum, but a long time Force and Chrysler forum member. I am curious if any other boaters out there have to transfer a disabled person into their boat? I have to transfer my lovely wife, who loves to boat, fish, and play in the water more than any gal I...
  15. tater76

    Can a 1974 Chrysler75hp block be used to rebuild my 1989 Force 85hp block? UPDATE!!!

    Ok folks, so I said I would make a pitorial step by step of my ignition and component conversion, and here are the first few steps I have taken. If anyone remembers I wanted to swap the ignition components from my blown 89 85hp Force to a 75hp Chrysler powerhead. Why would I do this you ask...
  16. tater76

    Can a 1974 75hp block be used to rebuild my 1989 85hp block?

    Like the title says, will the block from a 74 75hp swap with a 89 85hp? I have an 89 85hp Force with a hole in the block, but it is in excellent condidtion besides that :) I also picked up a 74 75hp Chrysler today for $100 bucks. My thought is to swap guts into the 75 case, but I can't find any...
  17. tater76

    1989 Force 85hp Case?

    So I found an 85hp Force that has nearly all new ignition parts and wiring, new rebuilt lower, and a blown powerhead. Now I have been down this road before, and know I can make this worth my while. But can anyone tell me where I can find a good used case, and how much is too much to pay for it...
  18. tater76

    Should I buy it?

    Hello all, so I ran across a 1973 Starcraft 18ft with a mid 90's 70hp Force on it. The owner says it has low hours, and most of them have been from trolling. He only wants $600 for eveything! I have only seen pics of it, and the engine looks like it's been inside it's whole life. That said, is...
  19. tater76

    Surface gap plugs?

    Just another quick question, my 1973 55hp Chrysler that now has ignition from an 1985 50hp Force will not run with surface gap plugs. I have tried several different brands and numbers, but it gives me grief. When I install a new set, it will start up and idle fine for about a minute or so, then...
  20. tater76

    Lower unit Gear ratios?

    Hi folks, so I am curious if my 1973 Chrysler 55hp has the same gear ratio as my 1985 Force 50hp motor? I can't seem to locate this in the manual (I might be blind?). They look to be interchangeable, but I am thinking if the 50 has a better ratio for my boat I may just swap it on.
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