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No water stream and prop is not moving

T

tanksmydog

New member
"I have a 1973 Merc 500 and re

"I have a 1973 Merc 500 and recently brought it out of storage, I fired it up and with the help of a little starting fluid it was running good. BUT when I tried to went to make sure the prop was moving good, it would not move. It is not seized up or at least I dont think it is cause I can move it with my hand easily. I shut it down to check out the cables and when I started it up there was no water stream, before it was a strong water stream, now nothing. Shutting it down quickly I could find nothing obstructing the outlet or the hose leading to it. Whats going on? I have spent a lot of money rebuilding this outboard so far but have done nothing to the lower unit...is it the impeller or the water pump? Is it an easy fix? Cheap? I am hoping to do this myself as I have the Seloc Manual and am pretty good with my hands."
 
"Starting fluid is really bad

"Starting fluid is really bad for a two stroke motor. The only way the motor gets oil is through the gas, and starting fluid doesn't contain any oil.

If this has been is storage you should have serviced the waterpump and changed the lower unit oil well before you tried to fire it up for the first time.

From what you describe you could be dealing with one problem or a couple of different problems.

Both the prop and the waterpump rely on the driveshaft to power them. That is the one common component which would result in neither of them working, but for that to be the cause it would have to either be separated from the crankshaft, or all the teeth would have to be stripped off (the latter would be really bad and expensive to repair, especially if the problem was on the crankshaft end of things).

So throw away your starting fluid, get ahold of a Selocs manual and pull the lower unit - then start investigating...."
 
If the crankshaft is chewed up

If the crankshaft is chewed up the repair cost would be significantly more than the motor is worth.

but first things first - get the lower unit off and investigate...
 
Is that the lower unit that ca

Is that the lower unit that came with the motor? A short shaft LU on a long shaft motor would explain all this.

The length of the driveshaft from the top of the water pump housing to the fat end of the shaft should be around 20 1/2 inches. If it's a few inches less than that....

Jeff
 
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