Pump alignment

[MB465]

I recently bought a sn hull that has the dowel pins removed from hull to align the pump and has a protec trim/nozzle on it. The bolt mounts for the nozzle are a good half inch off of the hull when the front bolts are tight. Is there a better way how to align the pump then just micing it around the hole in the bulk head? And with the nozzle being this far off the hull is it even worth keeping and making adapter plates. I borrowed a cold fusion alignment tool but it looks like the mid shaft bolt pattern is different on a post sn hull.


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[Vortex]

Some mag pumps also don't have the alignment pins. The way I do it, hull has to be upside down, handle pole removed, on 2 sawhorses. bolt the pump and nozzle together and remove midshaft. You will need a set of stainless pump shims for the pro tec trim nozzle. First you set vertical alignment of driveshaft with shims under nozzle bolts, it may take several shims (you mentioned half inch gap). Then set horizontal alignment. Expect to crawl under the hull a bunch of times during this process. May not be the best way as you are still kind of eyeballing it but it worked for me when I installed a 144 Maxx mag w/pro tec trim. Its a "get it the best you can" scenario with these mag pumps it won't be perfect

 

[Vortex]

Coincidentally I just did a prop change and snapped this shot of the pump alignment.
Bad photo but you can see the black space around the splines is fairly even. This is the alignment I'm working with, it still needs probably one more 1/64" shim on each nozzle bolt to be perfect, I am not even sure if you can get stainless shims that small that are of the right size for this. I had no issues running it this way last year. Pump and mid bearings were both new at that time and they still seemed good as new (not a ton of hours on them to be honest)

 

[MB465]

Coincidentally I just did a prop change and snapped this shot of the pump alignment.
Bad photo but you can see the black space around the splines is fairly even. This is the alignment I'm working with, it still needs probably one more 1/64" shim on each nozzle bolt to be perfect, I am not even sure if you can get stainless shims that small that are of the right size for this. I had no issues running it this way last year. Pump and mid bearings were both new at that time and they still seemed good as new (not a ton of hours on them to be honest)

worked out pretty good doing it, I guess only time will tell if I have the eye of a pigs ass. mine looked fairly similar to that when all was said and done though. Added two 150 thousandths shims before I even got to start on the alignment due to that reduction nozzle.