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I see. Too bad they didn't stick a little plug in starter on there, like snow blowers have.

I have a maybe 15 year old craftsman yard vacuum. Long story short, its plastic timing gear melted, so I had to pop the engine off and replace it with a new one, that was metal. When I opened the motor, I was expecting a melted camshaft. But the camshaft looked perfect and the gear that spins it...

So I took apart the mechanism where the starter pawls retract. There was one weird piece of plastic in there that I thought might be causing sounds, so I tossed it and reassembled. Started it up, still rattley noise. While it was running, I very slightly pulled the starter rope until the pawls...

Yeah there is a misfire but thats not what we're trying to fix here right now. Towards the middle of the video, when i've taken teh cover off and i put it back on, the sound gets very loud. It is definitely coming form the cover but I can't see anywhere it would be coming from, nothing looks...

Ok so last night i went to 'prove' the sound wasn't coming from the plastic cover and it turns out, its coming from the plastic cover! HAHA. Thats good because now I don't have to remove and open the crankcase. But its bad because I still can't figure out where the sound is coming from. The...

This is a machine I've had lots of previous posts about and done lots of repairs to. It has a very subtle misfire that I just can't fix. Possibly low compression from slightly scraped up cylinder wall? Either way, its plenty good enough. I mowed my large yard with it today and it works fine...

UPDATE: I contacted another random company online asking if they had a picture of the part they were selling with the number 590534. After going back and forth a bit and hearing my problem, he was able to contact briggs directly and get an answer. They messed up, all these seals are going out...

Yes I tried to see if it will fit. Its a totally different part in a totally different shape so theres no way to even try to install it. Its like trying to install a square peg in a round hole.

Those numbers were so finely engraved that they were completely invisible to my naked eye, but alas:

That was me! With the paint! But those were numbers engraved in the metal cover of a yard vac motor. The numbers for this motor are printed on a label and are perfectly legible. Also if you search for the part number, you will fine SOME sites that have the correct valve listed! But even those...

The 3rd and 4th pictures in your set of pictures are not the same seal. The 3rd one is what people keep sending me and the 4th one is actually what came out of my motor.

How can I do this? I can't find any way to contact them, they only deflect to 3rd party "authorized" resellers.

The saga continues. I bought one from Amazon that had a B&S logo without an actual photo of the seal, because I'm out of options here. I hoped I'd get lucky and it would be the right seal, but it was the wrong one.

Ok the most recent place that sold me the wrong seal just got back to me saying that the seal they sent is the "new design" for the same part. But I tried to install it and of course, its impossible. Theres nothing for it to install into because its a completely different part thats a completely...

Seems like B&S got the two numbers mixed up.

Well I'd prefer new but that doesn't seem to be an option until B&S figures out their wrong part number problem SOOO yeah if you have one in good shape I might be interested.

no it does not fit

I removed the valve seal on this mower I was trying to fix and tore it in the process. No problem, replacement seals are cheap. I looked up the numbers online and according to every source I can find, I need part number 590534. But I've ordered that part from two different places now, and both...

You know what would SIGNIFICANTLY help prevent this? If stores actually posted pictures of the parts, instead of using a generic B&S logo as the image for this thing. MOST websites including ebay selling these seals use the logo instead of a real photo. No wonder there is confusion.

My yard was a real mess when I bought my house, 11 years later, it is looking good. Now it looked good the last few years, so it didn't take me a full 11 years to turn it around. ALSO we've had a very rainy spring so far, which is why it looks exceptionally good at this very moment. Still...

The more people I contact, the more contradicting info I find. I emailed B&S through their parts website and I got a reply that said 'uh oh i think our stock is wrong, we'll get back to you' . It is very annoying.

So when I search for the valve seal part number (590534), I'm finding both seals types, the one that fits my machine, and the one that doesnt. Do they have two different parts with the same part number? How do you differentiate? Example: 590534 But then: 590534

The model number is in the previous reply. And 590534 is the part number i ordered that seems to be wrong. Where would one find the date code?

Ok I looked up my motor number again (09P7020144F1) and looked up the valve seal part number (590534) and what I see on jackssmallengines looks like the original, not the one I bought. But I didn't buy from jacks, I bought on ebay. But the part is supposed to be an OEM part and it came sealed...

Ok I got the valves out, i was stock on removing the caps but they came right off, then the sliding clips came right off, and now I'm all good. Well, except for this . . . The old valve seal vs the new one, they sure do look different. Whats up with that? I ordered via part number so it should...

I already did this once last year but I guess I forgot because I can't figure it out. Normally you just push and slide but that doesn't seem to be working here. This is a 675 model off of a craftsman lawnmower. Theres the retaining clip that holes the spring on, then theres the little cap that...

Well, by "these" I mean "this", just one cylinder. How does this look? Good? Bad? Soso?

On my mom's lawnmower, the end of the drive cable snapped. Its an older machine so if one snapped, the other is probably close. So I was going to replace both. But I was looking at this today. So the cable that snapped is the one with the spiral housing around it. if you unbolt this clamp...

Update: I fired the machine up today and it started pretty easily and seemed to run well. I let it run for about 15 minutes. It was very cold out today, about 32°. I had sprayed fogging oil in the cylinder so there was a normal big cloud of smoke at first, but that went away after a couple of...

Well then fingers crossed I really don't need a new engine! I suppose the best option if I did would be to buy the harbor freight engine and bring it to a machine shop and see if they could mill the shaft somehow to make it fit

That would be perfect for what I'm looking for. Because not only do I want a high and low forward, and a reverse, but I also want to put an open differential on this machine so I can actually take corners without the worlds worse understeer. AND I want to hook it up to my factory CVT. It would...

"Now some do have a multi speed differentials as you choose low, high, and reverse ranges." tell me more about THAT. The MOST ideal solution for me would be some type of gearbox that has a normal forward, a low range forward, and a reverse, all hooked up to a regular old automatic CVT belt drive!

So what do you do? Is there really no way to replace the motor if it was dead? Or would I have to try to transplant this one's crankshaft into a different motor?

I'm sure there are more than one answer. I know for a fact that some have gearboxes with multiple speeds and reverse. And zero-turns are probably using either hydrostatic or a gas-electric direct drive type system. But is there another option? I made a post in a go kart forum about how it would...

So I've replaced the timing gear and a few other things. But I haven't tested the motor yet, the machine is still all apart, its going to take me a few more hours to get it all reassembled and ready for a test. I'm hoping everything goes great, and I get a bunch of years out of this machines...

I like the permanent-ness of paint though. And honestly i'm very tempted to do this to every tool I own that has sizing imprinted on it. BUT do I really want to spend all that time doing it? Mehhhhh. If I ever have a slow week, maybe ill do it.

For those impressed with the "paint" technique, i got the idea from Adam Savage, the mythbuster. He used this technique to make new metal things look old and used - when making movie props in his previous life. And then more recently I've seen people use the same technique to highlight the sizes...

Lol, well in my defense, my model number was literally invisible before i sanded it and painted it :P

If this were a lawnmower or a snowblower I probably would. But it's a yard vacuum that probably runs for all of 3 hours per year. So I'm just going to cross my fingers and keep the old cam.

Yup thats the same number i came up with on the B&S site. That makes me wonder if mine failed due to overheating, or maybe it just failed, all on its own. Plastic can be brittle, but then again if its always soaked in oil and never sees ANY UV light at all, it probably won't get brittle too...

Finally! I have the number! To my plain eyes, there were no numbers imprinted on that sheet metal flywheel cover. But people insisted it was there. So I put a round wire brush on my drill and scoured it down to bare metal and wouldn't you know it, some barely visible numbers started to reveal...

Now I'm going to have to go look at it again. In the photo, now I am starting to feel like I see something super subtle. But in person, with my own eyes, it looked blank. And I spent a long time looking over that shield again and again, looking at every speck of it. One more close look I guess...

The cam looks fine, but the timing gear had some damage. There was some debris around the air flow areas. Not enough that I would think it would cause it to overheat, but maybe it doesn't take as much as I thought. It's certainly worth replacing that timing gear and seeing though. ... IF i am...

I have machines from the mid 90s that still have their printed labels on there. This is the first machine I've ever come across that had no marking anywhere at all.

Its not there. That whole metal cover that goes over the flywheel has zero characters imprinted anywhere.Then inside doesn't have any surface rust, and it makes it much more clear that theres nothing imprinted anywhere. This is truly a ghost motor.

Ok I pulled the plastic cover off, the metal cover and this is the ONLY numbers I could find. They don't appear to be the right format though. I scoured the rest of the motor and couldn't find any other numbers anywhere.

Here are two exterior photos of the motor if that helps. No model labels to be found :/

I'm back over there now, so I can look for a model number on the engine. However I've looked everywhere and can't find anything except some stickers on the fuel tank that don't appear to be model numbers. Any ideas where I can find a model number for the engine so i can order up somer parts...

Where are you seeing four different gears, I'm only seeing one? HOWEVER the one timing gear I'm seeing does not look like my timing gear. So I'm thinking thats not the exact correct engine.

I want to keep this brief but I also want to give you the full backstory. I need help assessing what happened to this machine, and what it's current condition is. This is a Craftsman Yardvac with a B&S 675 engine. It was in my neighbors yard never being used for 15 years or so, and one day he...