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  1. W

    syphon line location?

    I noticed that my 2000 seadoo speedster which is running a 240hp sportjet is takin on a bit of water. I just put it all back together after a full rebuild. I neversaw this fully assembled so I am not 100% sure of all the routine of the lines everywhere.... I found a left over syphon line lol...
  2. W

    oil injection issue...

    I finally got my project boat up and " running ". 2001 Mercury Sportjet 240. I seem to be having an issue with the oil injection system. Both tanks have plenty of oil in them. No trouble beeps. The oil seems to be entering the oil pump but not exiting to the VST. I pulled the bleed screw and oil...
  3. W

    Not getting fuel

    I have a 2000 seadoo speedster that I have been working on for almost a year now.... I bought it with a blown engine. Its been rebuilt and ready to go. I've ran into a problem. Its not getting any fuel. The pump is working you can clearly here it. I disconnected the outlet side to see if...
  4. W

    Major mistake. what to do. wrong crankshaft

    I pulled a stupid... I WAS near completion on my winter project. A full rebuild 2001 Mercury SportJet 240hp EFI serial:0E405334. I had purchased a low hour crankshaft for it during the winter. Same part number and supposidly from a jet drive. Long story short. I never bothered checking the...
  5. W

    2.5L crankshaft interchange question

    Working on my 2001 mercury sportjet 2.5L 240hp motor. Would someone be able to help me out by telling my what crankshafts would interchange for my engine... 2.4L? would certain outboard cranks work? Thanks
  6. W

    piston interchange question

    I have a mercury 2.5L sportjet 240. I am in need of good used connecting rods and pistons. According to online microfiche i need connecting rod 818141A2 or A13. and piston 854687A11 or T2 (starboard) and 854686A11 or T2 (port). Would connecting rod 644-818141 and pistons 785-854686 work? their...
  7. W

    electric choke conversion question

    Final steps of my engine swap. I have a 4bbl quadrajet for my 350 sbc. New motor has a edelbrock high rise intake that doesnt have any "choke brackets of any kind". The old engine (283, with stock intake) had the choke port on the side. Now i want to convert it to electric choke.. Whats the...
  8. W

    carb adapter question

    I seem to be having a hard time finding the proper carb adapter for my new intake. I want to use my quadrajet 4bbl spread bore carb, but my new intake is an Edelbrock high rise square bore intake.. Can someone tell me if they even have an adapter for this? I am finding tons of square bore carb...
  9. W

    exhaust cooling questions

    Re: exhaust cooling questions OK, after further brainstorming, here's what I came up with and would like to do. But I would like some confirmation that this will work correctly (flow correctly) I was to re-use my old omc t-stat but re-route the lines where needed seeing as I am going to center...
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    exhaust cooling questions

    Re: exhaust cooling questions I found a similar style to mine online. Mine has the same 4 outlets at the same side locations. Mine also has the big main outlet coming out of the bottom piece of the housing (not shown in picture) which runs to the water pump. Thanks
  11. W

    exhaust cooling questions

    Hi again gang! Continuing my 283 to 350 swap I am looking for some more pointers. I changed from having the old log style manifolds to center rise manifolds. Thermostat housing that was on my 283 is now bolted on my 350. My t-stat has the big main hose running to the water pump. then it also...
  12. W

    Proper oil pan dipstick tube...

    Hi guys! Im having some trouble finding a proper oil pan dipstick for my boat motor project i've been working on this pas winter. I got a sbc 350 5.7 out of a 1987 corvette. I have the center rise manifolds on it so its a tight fit between the head and valve covers and the manifolds. Can...
  13. W

    Verifying gear ratio on stringer??

    Hi again all! I want to make sure the outdrive I am installing with my new rebuilt 5.7 350 has 21\16 gear ratio. I realize i should be changing the outdrive but thats next winters project.. Whats the easiest way to get to the gears on the stringer to verify?
  14. W

    Setting initial timing

    Hi again all! Time to get cracking on my engine project.. This winter I had ordered a rebuilt 350. The numbers indicate its a 1978.. It also came with a new HEI electronic ignition.. I need to set the timing and install the hei.... How exactly do I go about this (I am only a small engine...
  15. W

    what spark plug? + pulley question..

    Hi all! Continuing my winter project, old 283 to a Newer rebuilt 350 (1978 block). HEI electronic ignition. I have a couple questions. What spark plugs do I run in that motor? Also, I am looking to get at getting new chrome pulleys. Would I be ok to buy the standard (long or short style)...
  16. W

    water pump interchance question

    Hi again all! As some of you might remember i posted a few question regarding engine swap. I HAD a 1966 283ci engine with an old stringer outdrive.... For a winter project I purchased a fully rebuilt 1978 350. I wanted to eliminate the old log style manifolds and install the "center rise"...
  17. W

    water pump interchange question

    Hi again all! As some of you might remember i posted a few question regarding engine swap. I HAD a 1966 283ci engine with an old stringer outdrive.... For a winter project I purchased a fully rebuilt 1978 350. I wanted to eliminate the old log style manifolds and install the "center rise"...
  18. W

    exhaust manifold swap

    As some of you might have read in my other posts, I just ordered a pre-1985 350 long block to replace my 283 in my boat. the 283 was a 1965-67 model with the OLD log style manifolds that just ran straight back then down into the middle unit (no riser)... I am looking to go to a thru-hull...
  19. W

    converting to thru-hull exhaust, pointers??

    I am in the process of dropping a new rebuilt 350 in my boat (replacing an old 283).. The boat has the old stringer outdrive... I would like to convert to a thru hull exhaust.. Can i just simply reroute the 2 hoses coming from the exhaust manifold elbows to go out the back of the hull and not...
  20. W

    283 to 350 engine swap, questions

    Hi all! I have a 1989 rinker bow rider that the previous owner took out the original motor and outdrive and installed a 1965-1967 283 (casting # 3862194). He also installed an old stringer outdrive. I was hoping to be able to just simply swap out the 283 for a pre-1985 350 rebuilt on eBay...
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