Pioneer (?) Jet Boat Project
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Pioneer (?) Jet Boat Project

  1. #1
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    Default Pioneer (?) Jet Boat Project

    Hello all...been lurking around looking and reading. I have picked up a blue boat with a cert label stating Pioneer Engineering in Spokane. The HIN indicates its something else... I've included a couple pic's.
    My first question is...should I fix it or junk it?
    Second, any ideas on what engine this thing had?
    It has an OMC jet unit...
    Thanks!
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  3. #2
    Senior Member GA Jet's Avatar
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    Quote Originally Posted by alaska120 View Post
    Hello all...been lurking around looking and reading. I have picked up a blue boat with a cert label stating Pioneer Engineering in Spokane. The HIN indicates its something else... I've included a couple pic's.
    My first question is...should I fix it or junk it?
    Second, any ideas on what engine this thing had?
    It has an OMC jet unit...
    Thanks!

    looks identical to my Jolly Roger boat. They are very cool once fixed up, not speed demons though. I bought one on Ebay for 500 that I plan on restoring

  4. #3
    Pie Wagon Newbomb Turk's Avatar
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    Fix it! That would be a very unique piece. Have a clue to what was in it for a motor? How long is it?
    "Does have a little wang in it...good though"
    Newbomb Turk...

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    There are a few scrap parts left. Valve covers, water pump, thermostat housing, alternator...and the front as well as rear mounting plates.
    They are painted orange...I'd guess Chevy???
    I found a pic of a '73 Pioneer with a 455 Olds in it...seems like an awful big engine but its looks just like this hull. I'm going to try to find a part number on the water pump and track it down. That should be an indicator.
    If you look at the ID number stamped on the transom it starts with JRB...Jolly Roger Boats???
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  7. #5
    Senior Member GA Jet's Avatar
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    Quote Originally Posted by alaska120 View Post
    If you look at the ID number stamped on the transom it starts with JRB...Jolly Roger Boats???
    sounds right to me. Like I said, that hull design matches my Jolly identically... let me see if I can dig up the pics but I dont think I have them on this comp.

    Also, my jolly has a 455 olds in it

  8. #6
    Senior Member GA Jet's Avatar
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    here is the only one I found so far. I had to take the engine out vertically in order to squeeze free of the engine bay



    found more




    forgive the bad quality, I took them with my phone and was actually taking pics of the motor removal so they dont show the boat well
    Last edited by GA Jet; 05-27-2010 at 07:06 PM.

  9. #7
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    Cool! I'd love to see some pictures.
    If you would, the engine compartment would be nice as well. I need to figure this thing out. I have no experience with non-outboard types. Right now I have a hole in the water I see $$$ falling into.

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    Holy crap! Did you remove the oil pan or is it flatter than a pancake?

  11. #9
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    Quote Originally Posted by alaska120 View Post
    It has an OMC jet unit...
    Thanks!
    Cool little boat. I'm a sucker for unique. That pump is a Jacuzzi YJ. Maybe some YJs were re-branded as OMC.

    MIC HISTORY: PREVIOUSLY JOLLY ROGER BOAT COMPANY--1100 WEST EWING--SEATTLE WASHINGTON 98119--DISTRICT 13--MSO SEATTLE--MFR TYPES 18--DATE OUT: 3-13-79

  12. #10
    Senior Member GA Jet's Avatar
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    Quote Originally Posted by alaska120 View Post
    Cool! I'd love to see some pictures.
    If you would, the engine compartment would be nice as well. I need to figure this thing out. I have no experience with non-outboard types. Right now I have a hole in the water I see $$$ falling into.

    Yeah I'll be going back to the hanger on monday, Ill get some better pics for ya.

    The oil pan was on, I think the manifolds are just pretty low slung. Heck on of the reasons for pulling the motor was so we can change the starter... couldnt get to the bolts the way the motor was mounted... turned out to be a good call, the stringers where shot and now I have a good excuse to freshen it up

  13. #11
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    Quote Originally Posted by alaska120 View Post
    There are a few scrap parts left. Valve covers, water pump, thermostat housing, alternator...and the front as well as rear mounting plates.
    They are painted orange...I'd guess Chevy???
    I found a pic of a '73 Pioneer with a 455 Olds in it...seems like an awful big engine but its looks just like this hull. I'm going to try to find a part number on the water pump and track it down. That should be an indicator.
    If you look at the ID number stamped on the transom it starts with JRB...Jolly Roger Boats???
    Post a pic of that water pump, valve covers and most important a front shot of that rear mounting plate. There is a good chance the water pump is from some other project. Valve covers could too. Most jet boats use an open cooling system with cooling water coming from the jet pump therefore no water pump on the motor. Looks like it used a three point mounting system. The front motor mounts are still in the boat in the one pic. The bushing for the rear mount are still in the pump intake housing. The rear mounting plate however will be a dead giveaway. BOP, Chevy, and Ford all have different mounting bolt patterns for the bell housing. If it is the BOP pattern it more than likely was on Oldsmobile motor (not Buick, Pontiac or Cadillac). Chevy could be big or small block, same with Ford.

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    I'll run out and get some pictures of the various parts. I did see a heater hose sized line coming from the jet that appears to be for cooling. I was wondering about the water pump but it is painted the same color as the rest of the items.
    Hmm. Jacuzzi pump, huh?
    You guys are just full of information.
    BTW, there is a Presolite alternator in the pile as well. Of course that could be for anything I suppose...

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    OK, here we go.
    I'm not sure what the JX-245 is...I didn't notice that on there before. I might have just answered my own question....
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  16. #14
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    I'm getting it now. The JX-245 was a modded Chevy 307 with Corvette parts. Damn, wish I had that one...
    Knowing I'm not going to find THAT engine, any thoughts on a 350 block? I really don't want to get too much wrapped up into this thing yet. If it will bolt in then we're in good shape.

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