surge alamo

[KReinisch]

Good morning...

I have finally made my decision and I went with an old surge alamo pump for my remote woods. Im not sure about the model. I think its a 40+ maybe even bigger. It had a 4.5 hp motor on it which I am swapping out for a 6.5 hp gas engine. It has a reclaimer with a double oilier going to each side of pump. It also has another tank on the side that I presume is the muffler. This is my first go around so Im not exactly sure what I am looking at. I have tried researching past post and looking up info but some of its hard to follow.

I just have a few questions.. What size pulley should I go with on the gas engine? The vacuum hooks to the top of the reclaimer, Correct? There is 3 ports and what looks like a bottom drain on the other tank (muffler) What do I do with those?

any inf would be greatly appreciated..

[n8hutch]

That Gasoline engine may be undersized if the 4.5hp electric motor was sized correctly. I think you would want to be closer to 9hp at a minimum. But you might be ok with oversized pulleys. Are you going to run a 2 belt setup?

[KReinisch]

I was thinking that a two belt system would be best.

[maple flats]

As said, if the 4.5 electric was right you need at least a 9 HP to run it. I ran a bigger Alamo on a 6.5 Honda but could only get 17" vacuum because even with the weight of the engine on it the 2 belts slipped and then burned the belts anytime it started to climb over 17". That had a 2.75" double pulley on the engine. When I had a 3" drive pulley it lugged the engine down. I suggest 9 HP or more and at least a 3.5" drive double pulley or regulate it down to 17" max with a 2.75".

[PARKER MAPLE]

I think it also depends on if it has the stock pulley on the pump still. Correct me if I'm wrong but it should have a 9"?? Or was it 8" I can't remember

[maple flats]

Mine is 10" on the pump on both my Alamo 30 and on my Alamo 75-100. Some members on here can tell you how many CFM you will get at specific RPM's. My engines do not run wide open but at about 3/4 throttle. Then I remove the stock gas tank and make a stand beside the pump where I mount a 4.5 gal tank for the 30 and 2 tank that size tied together for the 75-100.

[KReinisch]

IMG_6037.jpgIMG_6037.jpgIMG_6038.jpgIMG_6039.jpgIMG_6040.jpgIMG_6041.jpg

This is the pump. Just looking for more info on it. Just trying to figure out where everything goes.

[OGDENS SUGAR BUSH]

top part of your tank is oil reclaimer. bottom part is resivore with sight glass and temp gauge. pic 3 white pvc fitting the is cut off is vacuum to your woods or releaser. the tank in pic3 sometimes has a rubber ball in it that works as a moisture trap. I have a alamo 30/40 and yours looks twice as big as mine. (edit) I dont think a 6hp gas engine is big enough either

[maple flats]

That looks the same size as my larger one, to get more than 17" you need a bigger engine and at least a 3" or 3.5" engine double pulley. Then put on a remote gas tank. I will be using 2@4.5 gal each. When I had a Alamo 30 on that woods I got 19". regulated because I was on a vacuum tank.
The pump you show is called a 50-75-100, it all depends on the RPM, same pump.

[KReinisch]

Would an 8hp work?