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You have my permission to be of that opinion. :)

They are different or the manufacturers would not recommend one over the other.

Simple, it's what all the mower engine manufacturers recommend. It's not an obsession, it's just what is recommended.

I am not an oil expert and claim no degrees in chemistry or engineering so that is my disclaimer. But when it comes to oil, I have used only Castrol in all my cars and changed at 3K even though the manufacturer said every 5K. I used Castrol in one of my Siennas that I took to 348K and was...

Thanks to everyone. I found Pennzoil 30W on e-bay for a reasonable price and ordered three quarts. As for Briggs branded, Kawasaki, etc., I don't have confidence in those. Oil is just a sideline for them, AND they sell it in smaller packages at higher prices.

I'm looking for Castrol 30W oil and cannot find it anywhere, on-line or locally. I've checked AutoZone, Advance, O'Reilly, Walmart, Lowe's and Home Depot. So I decided to try for other brands, brands I recognize, not this cheap unknown stuff. The only straight 30W I can find is Super Tech but...

Agreed.

I haven't been a mower mechanic since about 1982 and I have no knowledge of your specific machine but when I see a mower lose power in the way you describe, the first two things I check are valve adjustment and ignition timing. In the case if ignition timing, what I mean is to check for a...

Briggs Mfg. No: 09P602-0076-F1 (parts manual attached) There are two flywheels listed in the parts manual, a two-piece and a one-piece, Mine is Briggs part number 590544, the one-piece (example picture attached). The flywheel key is sheared and offset by probably fifteen degrees or more (see...

Agreed about the lawyer but at the time I had a son who owned an HVAC company and he could have replaced the whole unit with new for $1570 and having homeowner's insurance with $1000 deductible, I decided to not risk an increase in my homeowner's insurance premium. They ALWAYS increase the rate...

Thanks for the reply. Relay? I word-searched both the operator manual and engine parts manual and that word is not in it. In the process of diagnosing all the safety switches last week when solving a deck/blade safety switch problem, I determined all safety switches function correctly. I...

Husqvarna RZ3016 (zero turn) When this mower was about two months old (in about 2016), I had a harrowing experience, ran off an eighteen-inch retaining wall. My butt slid off the seat down onto the foot pad area and the mower didn't even slow down, ran into and destroyed $6000+ worth of AC...

Husqvarna RZ3016 zero-turn mower I'm posting this for the purpose of helping someone else who might have a similar problem. I had an intermittent no-crank-no-click problem that eventually became full time. I suspected a safety switch so I ordered one of every kind of switch and began testing...

Coming back to let everyone know how this problem came out. First off, I originally had the wrong parts manual for my mower. My mower's number was 966612301 04. I had the parts manual for 966612301 (sans 04). After getting the correct parts manual, the parts manual for the 04 iteration, I...

I just now read this "Pennying Out" article at MSN.com. If an item has been on sale in Home Depot long enough, its price becomes just one penny.

About twenty years ago, I was reworking the head on my car's engine and decided to clean the engine entirely. I went to a locally-owned parts store and could not find any of the products I was used to using. I asked the clerk and he highly recommended something called Super Tuff (sold under...

Just for fun, I just now ran the math on the two-cent blade. Turns out I got a 99.93% discount.

Thanks.

This EZT belt that came today was advertised as "Genuine Husqvarna Belt 539120806 30 Zezt" but doesn't look like my spare never-used OEM deck belt (585054001) that I bought two years ago. The deck belt looks sorta' like ladies' stocking material was melded into its surface, giving it sort of a...

The bushings used to be in the Briggs parts catalog but I can't find even a hint of them now. I'll check around tomorrow but if the bushings can't be found there is no need for the tool.

Yes, when I had my shop, I used it several times. Since posting here, I've looked at the cost of reamers and it seems they float around $70 and up so I'll look into getting a new sump. It's quite an old push-type string trimmer on two wheels so a sump probably isn't available.

I made a mistake once.

Thanks for that info.

I have a Briggs engine that the bottom shaft bushing is worn out. I know there is no bushing there but that's the best I know how to describe it. 40 years ago when I had my little mower shop, I had a reamer that I used to ream out that hole and then drive in a brass bushing and seal and put it...

I understand that feeling. I found such a deal on dog food once that I bought 20 bags. And bought a dog on the way home.

Yes, somewhere along the line the educational system dropped analysis, critical thinking AND common sense.

I'm going to try another location and see what happens. If positive, I'll try others.

I have a 21-inch Bolens push mower that has a ruined blade. Needing one right now, I went to Lowe's and found two identical blades but labeled Troy-Bilt and Craftsman. Thinking the different brands might be priced differently, I took them to the service desk for a price check, Troy-Bilt...

Thanks muchly.

I have a 21-inch Bolens walk-behind, push mower, model 11A-B0BL765. I need a blade but all I can find are mulching type, Bolens part numbers 942-0640, 942-0741A and 942-0741-X. All are mulching or Xtreme mulching. I want a blade that is designed with emphasis on really slinging out the...

Thankyou, thankyou, thankyou, thankyou, thankyou. I spent about twenty minutes looking for this 04 parts manual, looked at about 30 links and found nothing for the 04. I like to keep as complete a documentation as possible on everything I own and discovering here that I had the wrong parts...

Good to know, thanks.

It appears Husqvarna did a disservice to their customers when they released only one parts manual for all iterations of RZ3016 when some part specifications vary widely and simply connot be made to work from one iteration to another, leaving users in a state of confusion at best. I have looked...

Thanks much. I go for it now.

What does IPL stand for and how can I get a IPL specific to my mower. I keep meticulous records of everything I do to machinery. I recently sold an '03 Toyota Sienna that I got when it had only 8K miles. I passed a USB on to the new owner containing 607 files in 56 folders. I currently have...

Uh oh!. I found another OEM site listing the 575 852401 (maybe wrong belt) and ordered it last night. I guess I'm in for trouble. Thanks.

Hmmm . . . Thanks for the info.

Sorry for the inconvenience. Further diagnosis made the post irrelevant and I don't know how or if it can be deleted.

Thanks for all the suggestions. Gates is a brand that has had a strong reputation I remember since I was old enough to have an interest in cars so I guess that'll be it.

ILENGINE, The part number you list, 539 120806, doesn't appear anywhere in the manual. The Parts Manual I have is for RZ3016 966612301, my complete number. https://www.manualslib.com/manual/564665/Husqvarna-Rz3016.html The 3016 designates 30-inch cut and 16 horse power. The EZT Belt is...

Bought this mower 2016 and am looking for OEM belt 575 852401 that drives the wheels. Unfortunately, Husqvarna has discontinued this part. After ordering an OEM from four companies' web sites, I received a "discontinued" e-mail on all. I've had aggravating luck with non-OEM belts advertised...

Yes, I've ordered one of those for diagnostic. There are (according to the parts manual) four of that switch on the mower; however, the way the schematic is drawn, it looks like there are five but one of them must be a different part number. Anyway, I'll check the ignition switch tomorrow and...

That's how I looked up the manual I have been using, by actual model number. It has a schematic I can read on page 46 of 56.

I want to thank everyone here for their help as it has validated my belief that this intermittent problem is related to the safety switches. I think maybe I'll order safety switches one at a time and replace them one at a time until I hit on the one that fixes the problem. Diagnosing them by...

Sorry, I made a mistake on the model number. It is RZ3016. I've looked and looked for a service manual for it but have been unsuccessful. If you know where I can get one in PDF, please let me know.

Pardon my ignorance please but exactly what are the B & S terminals? I assume the S is for starter but what does the B stand for?

Husqvarna ZT3016. This is an intermittent problem, sometimes starts by turning the key, sometimes behaves as though there were no battery in it at all. The facts: The battery is good and has a full charge. Shunting the under-seat safety switch produced no effect. I checked checked the switch...

Thanks for the correction (HDPE). I've known about polyethylene since childhood but never knew about High Density PE. Knowledge is power.

Turned out it was a Ruixing carburetor as the name is in relief in the casting on the side of the carburetor body. I ordered a Genuine Briggs "carburetor rebuild kit" from from an on-line dealer. It contained the "needle" I needed plus a whole lot of parts I didn't. The whole kit could have...