Results of swap from a Hamilton 3.4 impeller to a Solas impeller in a Hamilton 212 jet pump. Plus more discussion of the Hamilton 212 pump, for jet boats.
I used to use a dow Corning d111 silicone grease and i tested it on the nozzle of an at 309 pump. It was put on the inside of the best nozzle i had and it would be there for over 3 weeks It was in direct flow from the jet. It may stay on there for a bit . Great video now if we get the one guy with a precision weld.to video himself punching his face you would have millions of viewers! Thanks for all you do for the jet boaters ! I always listen to nuclear engineers!
Not mentioned in the video. (1) cruise RPM is down maybe 200 RPM (better), but this is a sort of vague thing. (2) Overall the drive train is much smoother implying... a balance problem in the stock Hamilton impeller. Subsequent run in white water shows significant reduction in cavitation relative to the original 3.4/nozzle_insert setup. Some cavitation/slip remains in heavy froth, so there is still room for improvement. In my personal experience, a Berkeley pump with inducer actually slips less than the 212 (however the Berkeley thrust at low speed is significantly less). Often it is stated that the Berkeley is a useless POS in white water; this is incorrect.
Hello Viking! Nice videos!! I´m from CHILE and have a CWB... we just orderer the new solas Impeller so was great to see your video. With your original 3.4 Impeller did you have problems? If i go full throttle it splits and we reach up to 5.000 RPM. I hop we can sovle some of this with the new Impeller!
Original 3.4 impeller slipped. This was cured by reducing the nozzle diameter to 102 mm from 109 mm. With Solas the reduction is not needed, and it does not slip. Overall performance is better. Added: it does slip if the boat is heavily loaded, but it also recovers by itself without throttle reduction.
Viking , where do you buy your solas impellers at? I did a quick google search and only found a marine power 3.4t version. On solas web page I was unable to locate ham 212 for application. Thanks and keep up the vids
Buy from a Marine Power dealer. Note that there is only one Solas for the 212, and it is roughly a 3.4. Relative to a 4.0, it will add maybe 200 rpm, boost peak hp by rough 20, and actually will be less prone to cavitate.
I've been looking for the socket sizes needed to pull the impeller on my 212 and I cant find any info. What size socket do I need so that I know I have it or can get one before I pull my pump apart
@@idahoviking we talking like 2 inch is it a deep socket or shallow ? My boat is in storage still -25°c here lol just starting to think about replacing my impeller after ingesting large amounts of gravel
