your engine seems to be ok if it starts and revs up ........as the prop is a direct drive from your engine the only slippage could be your impellor ......back about 6 months ago there was alot of seeweed in the marina i drove out with no problom but when i revved it the engine would all the way on the tacko but no speed. so i put it back on the trailer found no probloms went back out and tryied it every thing was ok ...my theory was that i sucked in some seeweed and blocking the intake grate but once i switched the engine off it must off let go this making me find no probloms
first thing i would do is to is check impellor and prop for debri if no debri and take to a marina just for a quick test if its still slipping you know you have a problom ...could of just been some thing cought in the intake grate ....if its still sliiping put it on a trailer but still leave it in the water and start it up have a look inside the engine bay and check if you can see any thing abnormal from the engine and pump drive fittings ...
if your impellor is slipping remove the nozzle on the rear and may be the intake grate to check by hand .....it may not slip by hand probly slip when under a load
wear ring........
the wear ring is located beetween the impellor and pump shoe if this is worn this will also give you probloms.... you will need a set of feeler gauges and measure the gap between the impellor and ring i think the sevice limit is @ 0.6mm
me persannally if i did all this stated above and it still seems like its slipping i would remove the jet pump by removing the..... nozzle from the rear..... and pump shoe..... intake grate and remove the prop and inspect in more detail for damage
hopefully nothing is wrong and hopefull that the same thing happend to me with the seeweed and when you switched the engine off the weed has also let go due to the suction effect
dean
Last edited by topbloke; 02-04-2012 at 01:12 AM.
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