Recent content by Andrew Leigh

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    Reversing Outboard output shaft rotation

    Just a left field question. I have a RIB with two 40hp 40XWL on, both rotating in the same direction. I was wanting to have them contra rotate. Was watching a video this a.m. on the two gears in the lower unit and thought, surely one simply has to change the front spur gear with the rear spur...
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    What does a Chartplotter do?

    Hi all, I have been looking at the Garmin GPS 276 type unit as an on and off water solution. To the best of my knowledge we do not have any of our internal waters charted and this is where I spend my time. Assuming there are no preloaded charts does the chartplotter have any usefulness? If so...
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    I'm BAAAAAACK ....... can finally see the site again

    Hi all, After about two years of being unable to access this site I am finally able to access again, albeit extremely slowly and with page timeouts. Nevermind that, at least I can see posts and post in return. Would appear as if Firefox has also helped tha matter. Well all I can say is that...
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    Cavitation

    Hi, My 130hp Yammie does 5600 rpm with a 19" prop so it appears to be correctly propped. When turning tight there is some cavitation. The cavitation plate, when the motor is trimmed, is level with the lowest point of the hull, which is a monohull. Any thoughts? Cheers Andrew
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    130hp Yammie Questions

    Hi, on the weekend I experienced a sudden loss of rev's, from about 5600 to 4800. I commented to my brother that it was almost as if I has lost a cylinder. When we got home a closer inspection revealed a small black box about 1.5 X . 1.0" that was connected to the plug and was earthed to the...
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    Don't you just hate inconsiderate people

    Hi, my rant The river I boat on has a tributary flowing into it. One can navigate this tributary for about 22km?s before it gets too narrow, it is great to idle along and to spot all the bird life. I have been up this river on numerous occasions. On the weekend I took my brother up as he too...
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    Countering prop torque

    Hi My question relates to the fin that is used to counteract the effect of prop torque on the steering. Is the fin able to make the steering nuetral or will one allways feel the effect of prop torque, albeit reduced, irrespective of how far the fin is set? Cheers Andrew
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    Axle suspension?

    Hi anyone use rubber suspension axles in favour of standard axles with leaf springs? The rubber suspension is in the cross member of the axle. Although they are more expensive than the standard axle I can get one from a friend who had one on his caravan. He bent the one swingarm and insurance...
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    Trailer Mod's

    Hi, On my trailer, the keel section at the bow (where the winch is) rests against a very shallow "V" roller. This to me provides little or no lateral support. Support asides the winch exerts no downwards force as it is also positioned too high so it's need repositioning. If I am to go cut and...
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    Wot

    Hi, if a manufacturer states that the rpm range is 5000 - 6000rpm what then is the WOT. Is it 6000rpm or should one be conservative and keep it down to say 5500rpm to save the motor? Why the range? Why not state a fixed rpm with a tolerance? Thanks Andrew
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    Who would like to help me promote me?

    Hi, 398 posts, 400 is the next milestone. Someone talk to me, my answer to your reply and I can promote myself. Cheers Andrew
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    Stainless prop's wrecking lower units

    Hi, Life is filled with so much misinformation and I don't believe the following one. If you use a stainless prop and you hit a submerged item you will wreck your lower unit. I always thought that there was a shear device in the hub of the prop? The theory being that the alloy prop will break...
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    Show us yer boat thread

    Hi I have searched but cannot locate this thread, anyone? Cheers Andrew
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    Yamaha 130hp V4

    Hi I am about to make an offer on a boat powered by the above motor. I am not familiar with the engine, any thoughts? Cheers Andrew
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    Boat speed

    Hi, I am planning on buying another boat. It is a foward console 17.5' deep V hull made by Wahoo. It has 2 x 40hp Mariners on the back. The owner claims a top speed with two adults on board as 48km's per hour or 30 mph. Sound kinda slow, or is that normal? Cheers Andrew
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