Sneak preview: 70s Toro 524 gets a Hemi - Snowblower Forum : Snow Blower Forums
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post #1 of 12 Old 12-17-2019, 05:50 PM Thread Starter
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Sneak preview: 70s Toro 524 gets a Hemi

I picked up this Toro 524 back in April and hadn't touched it all this time until very recently. This is a clean survivor with hardly any rust. The previous owner told me that it'd run if I put gas in it, but that it wouldn't really throw the heavy wet snow.

These are from the original ad that I saved:






I think this is an older one, like from the mid 70s. It has rubber isolators under the engine mount plate, even. VERY beefy construction. Skid plates, scraper bar, and friction disk are all in good shape.

Over the last couple of weekends, I've removed the old engine and have installed a Hemi 212cc that I bought back several years ago. No need for the chute crank relocation on this one. The only issue I had was that the setscrew heads for the old pulley rounded off, so I'm using a spare Ariens 924 series stock pulley.



It runs and drives, I just need to make a small adjustment to the auger pulley tensioner so that the auger doesn't turn with the lever in the OFF position.

I may also hook up the factory throttle cable to the Predator engine, but the positions indicated on the control panel would be the opposite (Fast is idle, and idle is fast).


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Last edited by db130; 12-17-2019 at 06:16 PM.
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post #2 of 12 Old 12-17-2019, 07:28 PM
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db130,

Nice machine, one of my favorites, a model 38040. If I remember correctly, 1979 was the first year it was produced. I have a 1986 version with a Predator 212. With an impeller mod it throws snow 40 feet, and handles heavy wet snow very well. I haven't connected the remote throttle control, never felt it was needed. I too had to fight with the engine pulley set screws, soaked in penetrating oil (several kinds) for days but they finally came out. I'm sure you will enjoy using yours. Here's a picture of mine.
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1986 Toro 524 (Predator 212 Hemi, Impeller Mod.)
1997 Toro 724
1997 Toro 824XL Power Throw
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post #3 of 12 Old 12-17-2019, 08:37 PM
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Double ditto on the 38040. A very solid machine. It comes alive with an impeller kit. Y'all have seen enough pics of mine!

1989 John Deere 1032
1979 Toro 5/24 38040 (now a 6.5)
1978 Ariens S16H Tractor & Plow
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post #4 of 12 Old 12-17-2019, 09:45 PM
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I had one for many years. Mine had been repowered with an 8hp Briggs (flathead). That machine would throw snow like nobodyís business. No impeller mods either. Sold it when I bought the Power Max 826 HD so my wife would have electric start when I was on 24 hr shifts.

2015 Toro Power Max HD 826 OXE
1980 Toro 8-24 (5-24 re-powered with 8hp Briggs) - SOLD
1971 Toro 8-26
1963 Panzer T-70B with snow plow
2015 Chevy 2500 with 8' Fisher X-Blade
I hate shovels.
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post #5 of 12 Old 12-17-2019, 10:17 PM Thread Starter
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I checked the model number plate and it is a 31624 from 1974. It's about to turn 45 years old. Wow, just wow....


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post #6 of 12 Old 12-18-2019, 02:18 AM
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Quote:
Originally Posted by db130 View Post
I checked the model number plate and it is a 31624 from 1974. It's about to turn 45 years old. Wow, just wow....
That is a 1984 model. there never was a 5-24 made in the 70's.

Long LIVE THE POWERSHIFT!! MAY IT NEVER RUST IN PEACE!!
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post #7 of 12 Old 12-18-2019, 02:51 AM Thread Starter
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Originally Posted by POWERSHIFT93 View Post
That is a 1984 model. there never was a 5-24 made in the 70's.
Go google "toro 31624" and you get quite a few hits saying that it's from 1974:

https://www.partstree.com/models/316...04999999-1974/
https://www.ereplacementparts.com/to...77_123729.html
https://www.snowblowerforum.com/foru...r-powered.html

And Here's the owner's manual from Toro:

https://www.toro.com/getpub/8274

The bottom of page 2 says, "copyright 1973"

But hey, what do I know? I'm just the Ariens guy <shrug>.


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Last edited by db130; 12-18-2019 at 03:10 AM.
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post #8 of 12 Old 12-18-2019, 04:33 AM
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Quote:
Originally Posted by db130 View Post
Go google "toro 31624" and you get quite a few hits saying that it's from 1974:

https://www.partstree.com/models/316...04999999-1974/
https://www.ereplacementparts.com/to...77_123729.html
https://www.snowblowerforum.com/foru...r-powered.html

And Here's the owner's manual from Toro:

https://www.toro.com/getpub/8274

The bottom of page 2 says, "copyright 1973"

But hey, what do I know? I'm just the Ariens guy <shrug>.
I Don't have to google it. because I was Living and Breathing them in those years.

Long LIVE THE POWERSHIFT!! MAY IT NEVER RUST IN PEACE!!
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post #9 of 12 Old 12-18-2019, 10:23 AM
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Quote:
Originally Posted by db130 View Post
I checked the model number plate and it is a 31624 from 1974. It's about to turn 45 years old. Wow, just wow....
db130, you sent me right down a deep rabbit hole last night, for hours (this morning too). I never realized that there was a 31624 (524) model that was almost identical to the 38040. I now realize that I have seen the 31624 before but I always thought it was just an early 38040. There are a few external differences, and there are some internal differences (support brackets, etc.) but those differences are minor.

I also found that there is a 31677 (724) variant which appears to be the the same as the 31624 but with a 7hp engine. The only serial number that the Toro website shows for the 31624 is 4xxxxxxx. For the 31677, serial numbers are shown as 4xxxxxx, 5xxxxxx, 6xxxxxx and 7xxxxxx. So, it appears that the 31624 was made for only one year, and the 31677 was made for four years. The 38040 has 10 serial number sequences 0xxxxxx - 9xxxxxx, which I believe corresponds to 1979 to 1988. I don't believe that Toro would have been making the 31624 and the 38040 at the same time in 1984 so the 31624 appears to have been made for only one year in 1974, and the 31677 was 1974 - 1977. When I searched for images, the 38040 models seem to outnumber the 31624 models by at least 10 to 1.

Here is a forum post that also substantiates 1974 for the 31624, the picture shows a machine identical to db130's machine.
https://www.snowblowerforum.com/foru...r-powered.html

1986 Toro 524 (Predator 212 Hemi, Impeller Mod.)
1997 Toro 724
1997 Toro 824XL Power Throw
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post #10 of 12 Old 12-18-2019, 11:23 AM Thread Starter
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Quote:
Originally Posted by toromike View Post
Here is a forum post that also substantiates 1974 for the 31624, the picture shows a machine identical to db130's machine.
https://www.snowblowerforum.com/foru...r-powered.html
https://www.snowblowerforum.com/forum/885657-post1.html

"This is my old trusty 524 that my Father bought new in 1974. I've had it since about 1995. I've nursed the old H50 Tecumseh along each year, even bringing it back from the dead once when the connecting rod journal seized up on the crank journal.
I've entertained the idea of buying a new machine the past couple of years, but quite frankly, I'm not impressed with the materials used these days. Sheetmetal seems a thinner gauge, and lots of plastics are used.
So why should I spend close to $1,000 on a new machine when really all this one needs is a new engine? So after researching them, bought the Harbor Frieght Predator 212."


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