No prop on gearbox

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SthrnStyle3
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No prop on gearbox

Postby SthrnStyle3 » Thu Aug 20, 2015 1:33 pm

I'm just wanting to check with yall before I potentially make a mistake or not. My motor has been rebuilt and hasn't even been started yet. So I need to start it up to follow break-in procedure but I need to know if it's ok to run a motor and gearbox with out the prop on the gearbox..?
12' aluminum hull, 350 sbc w/ flattop Pistons and camel hump heads, side by side seating w/ double in front, 2:1 gearbox and a 78" whirlwind whispertip 2.0

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scottyroll
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Re: No prop on gearbox

Postby scottyroll » Thu Aug 20, 2015 2:36 pm

Prop isn't necessary but def gearbox IMO

I used a shop fan next to the radiator for my flat tappet break in.

I've also heard of using a water hose to spray the radiator down as well.

Make sure and prime the oil pump, use zinc, and put oil in the filter 8)
Last edited by scottyroll on Thu Aug 20, 2015 5:29 pm, edited 2 times in total.
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SthrnStyle3
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Joined: Mon Apr 06, 2009 6:41 pm
Location: Sanford, FL

Re: No prop on gearbox

Postby SthrnStyle3 » Thu Aug 20, 2015 6:07 pm

Thanks for the advise guys. I forgot about no airflow over the radiator... I have a prop but the cage isn't done yet and I'm not sure if I want to run the prop without a cage. Lol
12' aluminum hull, 350 sbc w/ flattop Pistons and camel hump heads, side by side seating w/ double in front, 2:1 gearbox and a 78" whirlwind whispertip 2.0

rbjscott
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Re: No prop on gearbox

Postby rbjscott » Fri Aug 21, 2015 12:23 am

Running the gearbox with out a load is good for the box. burnishes the gears. Industrial folks pay the gear mfg. to run the gears in.
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John C
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Re: No prop on gearbox

Postby John C » Fri Aug 21, 2015 9:43 am

A constant spray of water on the radiator will keep it cool while running the motor. It actually works better than a fan and will keep it a little cooler.


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