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  1. kdiddle

    VIDEO Help: Post Texas Freeze Leak

    @lakelbjhorn - i hate to see what you're in the middle of, but unfortunately it seems you're going to have a lot of company in that department as folks start digging their boats out of storage for the summer (so if you are going to repair, you should probably try to get your hands on a long...
  2. kdiddle

    1964 Speeditwin 28hp / WOT RPM - Prop sizing

    Thanks for your input/advice @F_R . That's the same conclusion I've come to, that there isn't much to be gained by changing my prop. I def have no intent on winning any races in this shoebox of a boat (I rarely even fish where I know there will be much boat traffic at all)...I just wanted to...
  3. kdiddle

    1964 Speeditwin 28hp / WOT RPM - Prop sizing

    @racerone since you said earlier it should be running 30mph with an 11in pitch...I'm guessing since I'm running 12in pitch and its only turning 4200 rpm (supposedly) and 22mph (via GPS), then can I assume that the boat is just too heavily loaded for the prop I have (with no real alternatives to...
  4. kdiddle

    1964 Speeditwin 28hp / WOT RPM - Prop sizing

    @F_R and @racerone - thanks for the reality check. I was apparently looking at the wrong category from when I purchased the replacement prop...this entire thread has been misdirected - I pulled the existing prop off and looked at the part # stamped on it and it turns out its a 10 1/2 x 12 (not...
  5. kdiddle

    1964 Speeditwin 28hp / WOT RPM - Prop sizing

    Racerone - not sure that I have a choice...every site I look at for pin drive props of this size only come in 9" diameter size...
  6. kdiddle

    1964 Speeditwin 28hp / WOT RPM - Prop sizing

    Yeah it looks like a Michigan Match 9x10 from Tacoma is in my near future. I wanna err on the side of slower rather than faster on the pitch, as its already goes plenty fast enough. Moreso just concerned about over-revving my new engine... Thanks for all the input everyone! This site is simply...
  7. kdiddle

    1964 Speeditwin 28hp / WOT RPM - Prop sizing

    So I might need to go post this in the prop forum, but I looked at iboats.com and they don't carry any pin drive props that would fit my engine. Looking at Tacoma props, the closest they have is a 9 x 11. Since that would be a smaller diameter prop, does that affect performance compared to the...
  8. kdiddle

    1964 Speeditwin 28hp / WOT RPM - Prop sizing

    That link didn't work - let me try again:
  9. kdiddle

    1964 Speeditwin 28hp / WOT RPM - Prop sizing

    Haha @racerone! I def think it's turning less than that...but get this... I recall my parents telling me my grandparents used to go fishing in that boat WITH another couple (apparently people were smaller in the 70s)and they also said they saw him pull a skier on more than one occasion when they...
  10. kdiddle

    1964 Speeditwin 28hp / WOT RPM - Prop sizing

    Well there you go, guess I need to throw my tach in the trash (its literally crap from you know where overseas) and maybe grab a spare 10" prop (not that I want/need to go faster than it does already). Thankfully I haven't been running it full throttle at cruise since it seems to make a lot...
  11. kdiddle

    1964 Speeditwin 28hp / WOT RPM - Prop sizing

    Wait, wait, wait....before I go blowing up my sweet running motor...I'm beginning to doubt my little wrap on tachometer...How are you guys measuring rpm on these old motors??? When WOT it sounds like its absolutely screaming....so now I'm thinking my tach is lying and the only reason its only...
  12. kdiddle

    1964 Speeditwin 28hp / WOT RPM - Prop sizing

    Hey F_R, its actually just a small fiberglass jon boat. I linked my post above that has multiple pictures of it
  13. kdiddle

    1964 Speeditwin 28hp / WOT RPM - Prop sizing

    Annnnnd now I'm questioning everything, since it seems 7" pitch should be way too low for a boat this small...I suppose I could post a video of it running and planing out to see if it sounds/looks normal to you guys...
  14. kdiddle

    1964 Speeditwin 28hp / WOT RPM - Prop sizing

    Sorry don't have a pic handy except on a previous post of mine (Post #3) - https://forums.iboats.com/threads/1964-crosby-28hp-speeditwin-rescue.705093/ Is it possible the boat is just heavy? It is fiberglass, but i did singlehandedly walk it backwards up an uphill driveway all by myself, so i...
  15. kdiddle

    1964 Speeditwin 28hp / WOT RPM - Prop sizing

    Thanks Kbait. I have played with the tilt pin both up and down and ended up moving my trolling motor to the bow (along with the super heavy deep cycle battery) up front put more weight on the front. It does tend to ride pretty tail heavy with just my 200lb self in the back. With its current set...
  16. kdiddle

    1964 Speeditwin 28hp / WOT RPM - Prop sizing

    Well, crap...I suppose this means you can disregard my question above. I just spent some time trying to find a prop with a flatter pitch than 7 and I'm coming up blank. So it seems it doesn't matter that I can't reach top RPM, it appears I can't buy a prop any lower geared than the one I...
  17. kdiddle

    1964 Speeditwin 28hp / WOT RPM - Prop sizing

    Good morning all. I have a quick question that I'm hoping the Evinrude gearheads in this group might be able to help me with. I have a small 14ft Crosby Sled running a 1964 Evinrude Speeditwin that I've go through (bored .040 over, new internals/carb/etc). It runs like an absolute dream both at...
  18. kdiddle

    No water discharge from port 1967 33hp evinrude

    I'm not sure what correlation the exhaust/powerhead has with the steering bracket. But in my experience, you can't get the exhaust cover off without removing the powerhead entirely. As I recall, there is a single bolt that you can't get to due to the lower cowl being in the way (but someone feel...
  19. kdiddle

    No water discharge from port 1967 33hp evinrude

    @Old man Boat - have the 1964 version of that engine. As was already mentioned there is def no thermostat and I'm not aware of a plug anywhere that can be checked. In my experience, my engine puts out a tremendous spray of water out that exhaust port above the water line, so I'd assume if you're...
  20. kdiddle

    gl5 oil all the same?

    Just to provide my (possibly useless) two cents...I also choked at the $30/qt for Volvo oil and ran a GL5 oil I found at my local parts store for a single season. Every time I would shift into gear when warm, it would hesitate before finally grabbing, which was explained to me was my clutch...
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