Eska-3h.p. Mud Motor

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Hoboman

Recruit
Joined
Oct 30, 2011
Messages
2
Hi all: just new to the forums here & would like to post a question re an Eska 3h.p. I have just repaired this engine-(it required a new thread insert for the spark plug). I had a quick look around about the Eska motors & saw somewhere that it is an air cooled engine with a water cooled shaft ect. So does it have a water pump somewhere?? And my plan was to use it as a shallow water duck hunting engine. I would mount it high on the transom with just the lower unit in the water to get into shallow areas. Does anyone see any problems doing this??
 
M

MahtyMaht

Chief Petty Officer
Joined
Apr 7, 2010
Messages
605
Re: Eska-3h.p. Mud Motor

It does have a water pump impeller. If you drop the lower unit, the first thing the long vertical drive shaft goes into is the water pump impeller housing. It'll probably be retained by 2 bolts. When you take it off, and remove the impeller, you'll see a drive shaft seal below it. You ought to replace that seal, too. Also, there will be a round key that locks the impeller to the drive shaft - get a new one of those, too. That motor should be fine scooting you around in the shallows.
 
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mrcrabs

Guest
Re: Eska-3h.p. Mud Motor

it will make lots of noise and some real loss on pushing power the closer the prop is to the surface, other than that I would like to mount a AV817 to a long shaft mud motor frame and shaft and winder up and see what 7.5 wild 2 cycle tecumseh hp @ 5650 rpm will do
 
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mrcrabs

Guest
Re: Eska-3h.p. Mud Motor

Oh, I'm sorry the AV817 was the last production run for the Tecumseh built Eska 7.5hp, 8.17 cu. inches of screaming 2 cycle hell...you will see them listed in the 640-xx engine codes, I really don't have much use for anthing less the a AV817....most bang for the buck and they used a almost full bottom side water jacket unlike the earlier AV750s and 600 and AV 520...don't get me wrong I'm not bashing the others I just like to twist all the power I can out of the little fellers, and theres not much to twist.

best regards,
MrCrabs
 
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