Startup outside boat
 

Any ideas on how to get water pump on motor to turn when starting motor outside the boat? Have belt off of power steering so dont burn pump up and that connects to water pump. Surely its been done before but I cant seem to figure it out.

Just redid the heads and want to set timing and check things over before I install in boat.

use a garden hose to push water thru the engine its pretty easy to adapt a hose fitting

unless your power steering pump is empty, why would you take the belt off? if there's fluid in there it will run just fine with the belt on and boat out of water.
I'm sorry if i haven't noticed what boat/engine/drive combo you have in other postings but you don't mention what you have here. If its a bravo drive then either put muffs on the drive and feed it with a garden hose or disconnect the hose from the transom connection and stuff the garden hose down the hose and run it. The seawater pump will force water into and through the block without the main engine circ pump running.
If you have an Alpha drive then you will absolutely need the muffs on the drive as the water pump is inside the drive that feeds the engine. And you will probably need the engine water pump belt on there as well cause im not sure if theres enough "umph" from the drive pump to feed it through the engine properly.

496BB,

I made a fitting to connect the outgoing and incoming hoses in the PS circuit. Then I just filled the reservoir and let it circulate the fluid. Worked great. I'm betting you could assemble a couple OTC fittings that would accomplish the same end goal.

Thanks. Brad.

I did the same million yrs ago on dyno. Found an over the counter couplers/fittings that put the two lines together. Off top of my head Forget what sizes…

Got any pics of this setup?

And its a HP500 Carb engine outside the boat. So someone is saying I dont need the actual motor water circation pump working while running? I mean I did already do this but only for a minute or two before I realized the ps belt also is the wp belt.

496BB,

I do not. But it's not complicated. Take your high pressure PS hose to a hydraulic shop and they will know what fitting you have. They should be able to match you up with a mating fitting. From there, you just have to Frankenstein some fittings to get back to your low pressure return line.

I had my engine completely assembled, with all systems functioning. I made up a manifold to accept two garden hoses, with a 1-1/4" barb fitting, and connected it to the hose that goes to the input side of my seawater pump, then connected hoses from two separate sources to it.


Thanks. Brad.

Oh! outside the boat ...as in on an engine stand! stupid me i was reading this as just not in the lake....ie...on a trailer :D
Yes if you have a sea water pump that's belt driven off the motor, it will force feed the motor with water.

Return is just a 3/8 rubber oil hose.
psi linewill haveeither flare fitting or saginaw fitting at it’s end. Take a pic and show us, if you don’t know what either look like.

https://cimg6.ibsrv.net/gimg/www.off...62ba33bf13.jpg
U need back pressure on the line though right? As in just cant feed high psi line into the return?

I must have slept through this class...because I am totally confused. What does the power steering have to do with anything? The way the post is worded, it comes across as needing to find a way to run the WATER pump to, you know, cool the engine.
What am I missing???

https://cimg5.ibsrv.net/gimg/www.off...2f4e132c6e.jpg
I want to run the engine on this stand before I install in the boat to make sure all is good.

I have sea pump belt off in pic but is back on now.

I dont want to run power steering pump because its not hooked to anything on high psi side and will leak everywhere.

I need the motor's water pump (on the block in front of timing chain) to run to circulate the water thru the block but cant do that because its on the same pulley as the power steering.

So Im trying to figure out how to do so or if Im missing something really obvious.

Hopefully this helps and sorry for any confusion. Been a long busy weekend.

You`re not the only one, I have no idea what he`s asking

Edit: now I get it.
as mentioned connect return to supply and make a loop.

496BB,

Nope. No back pressure needed. Just let the pump do its thing and let the fluid circulate.

If it were as easy as dropping a belt, that would be the obvious choice. But you can't, so the next best option is to just connect the two hoses.

Thanks. Brad.

This pic your high psi line ? If so, then it’s a flare fitting you can just slide back the nut and probably just slide over your return rubber hose and clamp. If not same size you have options to make things fit/connect.
And no, no back psi needed. Connect high to return.

Easy enuff. Thx!

Just buy a universal belt repair kit and make a temporary belt

https://cimg7.ibsrv.net/gimg/www.off...56a0900179.png