What Engine is this? Formula 5.0 HP Overhead valve

N

Nash Benson

Member
#1
#1
Dear, Everyone

I am broke college kid trying to get a mud motor for a boat!
  • Would like to use a HS50 but it will end up being expensive but one day hopefully! (When that day comes I will message you! @sparkwizard)
  • Also this engine is $40

Does this engine ring a bell, for anyone, who makes it? Reliable? Cheap Chinese engine with no support?
  • looks kind of like Tecumseh but I don't know? (I did a little research and am pretty sure its Tecumseh.)
Does it have some after market support?

Are parts easy to find?

What engine it this.png
 
sparkwizard

sparkwizard

#4
#4
I believe that is a Tecumseh.
The reason there is still some support for the flathead Briggs 5 horse engine is because they were the legal class type engine for kart racing up into the late nineties and early twenties. The Briggs "Raptor" was the one to beat. It was a factory built racing engine and the aftermarket built tons of performance parts for them. You can still literally build a Raptor clone from new aftermarket parts available from several places online.
That support kind of died off for most other flathead engines after they were discontinued in the eighties. OHV engines replaced them because they claimed to make more power with less fuel and cleaner exhaust. Most of the OHV engines come from China. For a reliable mudmower, you would want a billet rod and flywheel because it needs to rev. Those parts are plentiful for the Chinese OHV engines. (See Predator 212)
If you want a flathead performance engine, I (and many others) suggest you look for a Briggs 5 horse, Model 13.
On a side note, chainsaw engines make awesome boat motors.
 
sparkwizard

sparkwizard

#6
#6
I'm almost positive you are correct, @massacre .
It might be a good engine to get you going for 40 bucks. I think you could run it stock for a while, but replacement parts might be hard to find.
 
N

Nash Benson

Member
#7
#7
sparkwizard said:
I believe that is a Tecumseh.
The reason there is still some support for the flathead Briggs 5 horse engine is because they were the legal class type engine for kart racing up into the late nineties and early twenties. The Briggs "Raptor" was the one to beat. It was a factory built racing engine and the aftermarket built tons of performance parts for them. You can still literally build a Raptor clone from new aftermarket parts available from several places online.
That support kind of died off for most other flathead engines after they were discontinued in the eighties. OHV engines replaced them because they claimed to make more power with less fuel and cleaner exhaust. Most of the OHV engines come from China. For a reliable mudmower, you would want a billet rod and flywheel because it needs to rev. Those parts are plentiful for the Chinese OHV engines. (See Predator 212)
If you want a flathead performance engine, I (and many others) suggest you look for a Briggs 5 horse, Model 13.
On a side note, chainsaw engines make awesome boat motors.
Click to expand...
Yeah fair point I am currently looking at a few engines and there's another predator I might buy instead.
 
Havasu Dave

Havasu Dave

Moderator
#8
#8
The engine in question is a Tecumseh, and there are after market parts for it that some of use in our Tec flathead engines, like rods, and cam grinds. I have had them, and found them troublesome to tune, but once running, they do make decent power. I'd take a hard pass, and I have spent money on one of those engines, only to give it away. Probably ended up in the trash, which is a good place for them. *With enough skill and patience, they CAN be good engines. But you will spend more doing that, than you will at HF for one of the Predators.

I would not use any Flathead for a mud motor. They do not produce the power for the weight that an OHV will.

There are quite a few threads here and around the web on using the Predator 212 as boat engines and mud motors. They are cheap, and the aftermarket parts availability is unparralled. These days, the kart racers are going after torque, not RPM, so a lot of those parts are perfect for the boat motor application.

My two cents worth.
 
N

Nash Benson

Member
#9
#9
Havasu Dave said:
The engine in question is a Tecumseh, and there are after market parts for it that some of use in our Tec flathead engines, like rods, and cam grinds. I have had them, and found them troublesome to tune, but once running, they do make decent power. I'd take a hard pass, and I have spent money on one of those engines, only to give it away. Probably ended up in the trash, which is a good place for them. *With enough skill and patience, they CAN be good engines. But you will spend more doing that, than you will at HF for one of the Predators.

I would not use any Flathead for a mud motor. They do not produce the power for the weight that an OHV will.

There are quite a few threads here and around the web on using the Predator 212 as boat engines and mud motors. They are cheap, and the aftermarket parts availability is unparralled. These days, the kart racers are going after torque, not RPM, so a lot of those parts are perfect for the boat motor application.

My two cents worth.
Click to expand...
Yeah that sounds good, looks like the facebook market post got removed so, I plan on buying a 100$ predator there, but we will see what happens.
 
Havasu Dave

Havasu Dave

Moderator
#10
#10
Nash Benson said:
Yeah that sounds good, looks like the facebook market post got removed so, I plan on buying a 100$ predator there, but we will see what happens.
Click to expand...
A lot of the Predators for sale have been wrenched on by kids who learned about hand tools on their minibike project. It is so nice, so right, to buy a brand new one that no one has stripped threads on, or hot rodded, or beat to heck. I would not take a used engine for free. It's just not worth the aggrevation. You don't have to be baller to swing a $175 engine.
 
DaddyJohn

DaddyJohn

Well-Known Member
#11
#11
I also avoid those OHH50 Tecumseh engines.

Look on Marketplace for pressure washers with horizontal shaft Honda GX clone (or even genuine GX) engines. You can commonly find them at the $50 or less price level when the pump stops working. They commonly see light usage prior to this type of failure.
 
N

Nash Benson

Member
#13
#13
DaddyJohn said:
I also avoid those OHH50 Tecumseh engines.

Look on Marketplace for pressure washers with horizontal shaft Honda GX clone (or even genuine GX) engines. You can commonly find them at the $50 or less price level when the pump stops working. They commonly see light usage prior to this type of failure.
Click to expand...
Great Idea, thanks.
 
N

Nash Benson

Member
#14
#14
Havasu Dave said:
A lot of the Predators for sale have been wrenched on by kids who learned about hand tools on their minibike project. It is so nice, so right, to buy a brand new one that no one has stripped threads on, or hot rodded, or beat to heck. I would not take a used engine for free. It's just not worth the aggrevation. You don't have to be baller to swing a $175 engine.
Click to expand...
Yeah that's true however it looks like, there is a 75$ water pump looks like engine hasn't been removed, looks good will have to check it out.
 
creia

creia

#15
#15
Nash Benson said:
Yeah that's true however it looks like, there is a 75$ water pump looks like engine hasn't been removed, looks good will have to check it out.
Click to expand...
As a GENERAL rule engines off of water pumps are no good because they have threaded shaft ends. You want one that has a crank end with a slotted keyway.
Michael
 
N

Nash Benson

Member
#16
#16
creia said:
As a GENERAL rule engines off of water pumps are no good because they have threaded shaft ends. You want one that has a crank end with a slotted keyway.
Michael
Click to expand...
Ok, thank you, I didn't think of that however, if this is the case I will just buy another stock crankshaft and swapped it in there, as I would assume they're have the same specifications.

As that would still be cheaper than a new engine.
 
P

panchothedog

Well-Known Member
#17
#17
Nash Benson said:
Ok, thank you, I didn't think of that however, if this is the case I will just buy another stock crankshaft and swapped it in there, as I would assume they're have the same specifications.

As that would still be cheaper than a new engine.
Click to expand...
Not by very much. Go back and read post # 8 and 10 a second time. For $149
Not even on sale ( and they go on sale several times a year ) you get a brand new one instead of monkeying around with some who knows what. And then, buying and replacing the crank. I mean if you're that broke, get a part time job for 1 week, and earn enough to buy the new predator.
 
N

Nash Benson

Member
#19
#19
panchothedog said:
Not by very much. Go back and read post # 8 and 10 a second time. For $149
Not even on sale ( and they go on sale several times a year ) you get a brand new one instead of monkeying around with some who knows what. And then, buying and replacing the crank. I mean if you're that broke, get a part time job for 1 week, and earn enough to buy the new predator.
Click to expand...
LoL, I am you're right I am going to go that route, I plan on getting a job back at AutoZone at a new location, my old store manager is going to hook me up with better pay at a different location closer to school. Also I am try to get the boat ready and fully operational before spring break (Mar 8), what I need to focus on is getting the mud motor attachment.
 
You must log in or register to reply here.
Top