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Old 09-30-2019, 06:45 PM
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Default 5 HP Flathead Followed Me Home!

"But mom I really don't know where it came from!"

So the story all happened today. I was out walking my dogs this morning, and I passed a neighbor's house, seeing this old thing in their driveway(turns out he's a scrapper).
So I made a mental note and rode the Hothead over there later. I rang the doorbell and I basically asked if it was for sale, he said yes and asked how much I would offer. I happened to have some money burnin' a hole in my wallet, so I ended up giving him $20 for this thing.
It turns over, but feels like it doesn't have much compression and probably has other problems.
So, in one day, I got a 130202 5 HP Briggs flathead, built in 1977, for $20.

I'm undecided what I'm going to do with this thing, I may flip it and sell it as a refurbished tiller, I may start a tilling business, I may put it on a kart or the Radio Rod, or I may keep it as a backup/parts engine.
What do y'all think I should do with this thing?

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Old 09-30-2019, 07:11 PM
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Well, make it run first... then figure out what you want to do...
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Old 09-30-2019, 08:49 PM
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Radio Rod put the 3hp on it
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Old 09-30-2019, 10:38 PM
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If it's mechanically sound, clean it up, get it running, and sell it. It's worth far more as a tiller than as a go kart engine. Then use that money to fund other parts.

Engines are cheap and plentiful if you know where to look. Wheels, tires, sprockets, etc. are not. Even buying parts karts is a crap shoot, as people usually want way more than they're worth, things are cobbled together and rusty, and so on.

I have a whole slew of perfectly good, running engines I got for free. I've never stumbled across a free rolling chassis in decent condition.
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Old 10-01-2019, 12:47 AM
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or, make it run, put it to work, grow a garden, feed yourself and the family and sell produce and work your way up, make your money back! You already mow lawns.
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Old 10-01-2019, 01:52 AM
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Nice!

Why was the guy selling it?
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Old 10-01-2019, 01:54 AM
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Yes, easily worth $100-$200 as a garden tiller. Basically worthless as a bare engine. Check the PTO shaft length--often times those had a shaft just long enough to support a pulley [and not a clutch].

I'd definitely tidy it up with new paint. Gloss white Rust-oleum and that Caterpillar-style yellow... I bet they make rattle cans for that.

I think my dad had one just like it. Same color and everything.
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Old 10-01-2019, 06:55 AM
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Quote:
Originally Posted by landuse View Post
Nice!

Why was the guy selling it?
He was a scrapper guy. I had seen him and his wife walking their dog around the neighborhood, and he basically said he was inclined to sell it to me because I was always polite, saying hi when we encountered each other, so yeah, a little manners go a long way!

---------- Post added at 06:55 AM ---------- Previous post was at 06:39 AM ----------

Ok at this point I'll probably flip it once I fix it up. Need to get the rust off the blades, put a drive chain on it, go over the pulley system and all the bearings, replace the current wheels, and of course fix up the engine.
I should be able to diagnose this engine very quickly, because I can swap spark plugs and carburetors to find the problem, and I still have Pulsa-Jet parts in my parts stash. From the way it pulls over, it probably needs a new head gasket or some kind of compression repair.
If it turns out the cylinder wall is damaged or the block is damaged somehow, I may even try to throw the 3 HP on there and sell that and keep the 5 HP for parts.
Ironically, the 3 HP was on a tiller originally anyway!
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Old 10-01-2019, 08:51 AM
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Yes I was thinking throw the 3hp on and keep the 5hp
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Old 10-01-2019, 11:36 AM
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Dirty carbon infested valves and valve seats can cause compression issues also. Might check that out. That 77 has a pull/slide choke on it. Those carbs are notorious for sucking air from all the openings on the carb causing a rough and irradic idle. That can be fixed by making and putting seals around the choke and throttle rod.
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Old 10-01-2019, 02:24 PM
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Yeah I figured the compression issue might be valvetrain related, but I'll find out once I tear into it.
First thing to check is spark, though.
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Old 10-02-2019, 07:10 AM
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Default First Update!

I think this thing was sitting outside for a while....
The spark plug was seized, but with PB Blaster and a cheater bar, it came off pretty easily. As expected, no spark. I tried the good plug from the HiPo, and still no spark. NO I didn't leave the kill mechanism in the off position!!!
So I've got an electrical gremlin somewhere. I think it's points system, since I spied a wire snaking behind the flywheel. So first order of business is to clean/adjust the points. Probably a new plug too. And maybe a new condenser. And maybe new points while I'm in there. And maybe a new coil while I'm at it......
And much to my dismay, there's liquid in the tank!!!
If it's gas, it's gotta be way old and probably made for a sludgy mess for me to clean up(doesn't smell too good either), and if it's water it's probably all rusty inside, but at least since it's holding liquid I know it doesn't leak.
And the throttle cable feels seized.

This thing is pretty rough, but I think workable. This project, like the Radio Rod, will come along slowly while I hurry up to finish the Hothead for the Build Off.
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Old 10-03-2019, 12:52 AM
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I wouldn't go and buy all these fancy parts. Just get it running with what you need, clean it up and have fun with it. No use spending money just for the sake of doing so.
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Old 10-03-2019, 06:42 AM
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Yup, I was just joking around. First thing to do is clean/adjust the points, then I can put in another plug to test the spark. Might need a new condenser, but we'll see.
And I've got Pulsa-Jet parts on hand already.
If it turns out it's just a bad head gasket causing the compression problem, I'll just put some high temp Permatex on there.
Just gotta try to get this thing running.
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Old 10-03-2019, 09:44 AM
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Quote:
Originally Posted by JTSpeedDemon View Post
bad head gasket causing the compression problem, I'll just put some high temp Permatex on there.
Just gotta try to get this thing running.
Come on JT, I keep a 272157s in my toolbox

Id go for the thick cardboard on the back of a spiral notebook before silicone

Anyways, Do I need to mail you a gasket?
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Old 10-03-2019, 10:05 AM
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That's Ok, my parents want to keep our address private. I'm just trying to get this thing running, and there's no knowing if it's the head gasket or valve/piston ring related.
I'm more worried about head bolts breaking TBH.
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Old 10-07-2019, 01:36 PM
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Ok just tore into it and found an old wasp nest, an little shed snake skin, what looked like a dead crusty frog skeleton, and a rusty flywheel(mostly surface rust).
Once I removed all the parts and the points cover, I was greeted by a NASTY corroded points system.
In my hopeful attitude I went ahead and cleaned and adjusted the points and started to put it all back together.
While putting on the starter clutch I accidentally broke off one of the ears.
I know you guys warned me against this method, but I don't want anyone picking on me because I made a mistake, everyone does. The main reason it broke off is because I was overtorqueing it anyway.
But anyway it sparks!! I am blown away that the spark plug is still ok. Next thing I am about to do is put the Vacu-Jet carb from the 3 horse and put it on there.
After feeling it turn over again, it has compression, it's just less than I'm used to on my HiPo.
So, here goes the carb swap...

Self-merged post:
YAHOO!! It runs!!!
After retrofitting the Vacu-Jet on there, twiddling with the tuning, and cranking it a lot, it finally runs!!!!
And the best part is that I filmed it, so y'all will see it!
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Old 10-07-2019, 03:16 PM
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Cool, I’m looking forward to seeing the video.
It’s pretty rewarding to bring one back from the dead.
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Old 10-07-2019, 03:51 PM
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Heck yeah it's rewarding!
I think it's having weak/intermittent spark, so I think a new condenser and points are in order.
And since I broke one of the starter clutch ears, I'm going to get a new clutch. The old flywheel screen bolt holes are stripped out anyway, and it really does not want to grab. I'll keep the old one for parts though.
The crustier they are, the more satisfying it is when I get them running!
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