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 [Finalist] [24] RROD’s Sears Custom 6

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MightyRaze
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[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Empty
PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeSeptember 22nd 2024, 12:15 pm

Sears did great down at coalmont today
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_2823

Behind me in this spot I accidentally showed up some jeeps that were recording a youtube vid and blasted through all the rocks they were fighting with lol!
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_2825

Most of what you can see from this view is part of the offroad park. Place is huge!
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_2824

One small problem i guess, after being slammed on its side several times (the tractor is hard to roll backwards, it goes backwards and then falls to the left), it seems i busted the roll pin that stops the front wheel from sliding in on the spindle. Can’t really complain if that’s the only problem from hard riding for 6 hours straight!
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_2821

More evidence of abuse lol. The steering wheel is a bit bent up too.
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_2822

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[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Empty
PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeSeptember 24th 2024, 1:48 am

Welded the washers on the spindles. Moved them in a bit actually, since i took the bearings out of Mutt’s old front hubs and put them in these wheels, and the flanges on those bearings are a bit thicker than the old bushings. So now the front wheels are nice and tight on the spindles.
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_2910
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PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeSeptember 24th 2024, 11:44 am

Ok reupload this one actually has audio lol!
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PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeSeptember 25th 2024, 11:13 pm

Dropped the trans to put the new 5.5” pulley on (4.5 previously). Went to a 1/2x80 belt. Moved upper belt guard with the slots in it, and did the same in the bottom after i pulled it out and put slots in it.
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_2912

You can see here that reverse is between 2-3 and 1st is far removed from the rest of the gear ratios. A 2300 is better described as a 3 speed with creeper than a true 4 speed.
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_2911

Anyway, the gears feel much more appropriate now. Reverse is now useable, 2nd is a nice trail cruising gear, 3rd is a nice takeoff gear and 4th is great on the roads. 1st gear is still just crazy slow lol. Top speed is now 21.7, down from the previous 24.2.
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_2913

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[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Empty
PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeSeptember 26th 2024, 12:47 pm

I'm curious of your pulley size research.  I run a 7 engine 5 trans on the 2300 on dirty rat.  I forget it's top speed, but sometimes I want more. I run into belt slip if I go smaller on the trans when wet, and going larger on the engine messes up the clutch.  I need to rework that one day if I do want to go faster.  Works well now, so I leave well enough alone.


[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Sig115PROJECTS:
     Marshal ........................93 Craftsman GT6000      
     Red Bandit ...................72 Wheel Horse Raider 12
     Dirty Rat........................77 Sears Suburban
     Bowser...........................01 Murray Widebody LT
     The Green Machine ....1990 Craftsman II GT18     
Other projects
Have a question? Ask me! Type in "@MightyRaze" in your post!
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Sig214[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Sig314
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[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Empty
PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeSeptember 26th 2024, 1:04 pm

Top speed with 6.5 to 4.5 was 24.2mph @6200rpm on 24” tires. Down to 21.7 now. I think i was expecting about a 18% decrease in speed, this wasn’t quite that. More like an 11% decrease. This is probably due to the fact that I’m calculating by pulley ODs and not the actual “Pitch diameter” that drives the belt.

Nice thing about pulley swaps, once you have a top speed with one ratio you can calculate the % difference between the old and new ratio and then multiply your known top speed by that % to get a new theoretical top speed. Since this pulley is a deep groove it didn’t actually go that much different on diameter than the old one so i didnt see the difference that i calculated by the OD.
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[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Empty
PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeSeptember 26th 2024, 1:11 pm

I did find my top speed was 18 @ about 4800 I think. The old oppy with stock carb and valve springs starts falling on it's face at that point.


[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Sig115PROJECTS:
     Marshal ........................93 Craftsman GT6000      
     Red Bandit ...................72 Wheel Horse Raider 12
     Dirty Rat........................77 Sears Suburban
     Bowser...........................01 Murray Widebody LT
     The Green Machine ....1990 Craftsman II GT18     
Other projects
Have a question? Ask me! Type in "@MightyRaze" in your post!
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Sig214[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Sig314
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[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Empty
PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeSeptember 26th 2024, 2:10 pm

I’m surprised your top speed is that low. I suppose the math does work out at that RPM.

This one definitely doesn’t breathe enough to make power over 5k, 6200 is just me holding it flat out on the road just to see what i can get lol. The low to mid range on this engine is definitely a perfect match for this tractor. Powerful yet very controllable. I don’t have a chance to use the top end much, most of my technical riding is slipping the clutch at mid throttle to keep smooth power delivery to the tires, instead of chugging at idle. The times i get into the higher rpms, it is mostly to use the momentum of the engine spinning down from high rpm to give a jolt of power when i let off the clutch- not being in the throttle until i need extra power makes things more predictable when lifting the front end. If that makes sense. It’s easier to demonstrate than explain.

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[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Empty
PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeSeptember 28th 2024, 12:28 am

I'm really contemplating giving those same tires a go on the front of The Green Machine when I complete my minor refresh.  I think they will work well.  The wide tires I have now seem to be a bit of a drag when it comes to soft ground or mud.


[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Sig115PROJECTS:
     Marshal ........................93 Craftsman GT6000      
     Red Bandit ...................72 Wheel Horse Raider 12
     Dirty Rat........................77 Sears Suburban
     Bowser...........................01 Murray Widebody LT
     The Green Machine ....1990 Craftsman II GT18     
Other projects
Have a question? Ask me! Type in "@MightyRaze" in your post!
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Sig214[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Sig314
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[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Empty
PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeSeptember 28th 2024, 5:13 am

They’re a nice option for a taller pizza cutter than the stock 4.80s. They did just ok before i cut them, now they’re pretty great. Fit my narrow rims good too. For the price and actual intended application i cant complain.

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[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Empty
PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeSeptember 28th 2024, 2:04 pm

RichieRichOverdrive wrote:
They’re a nice option for a taller pizza cutter than the stock 4.80s. They did just ok before i cut them, now they’re pretty great. Fit my narrow rims good too. For the price and actual intended application i cant complain.


Only thing holding me back is, I think the width would look funny on the tractor.


[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Sig115PROJECTS:
     Marshal ........................93 Craftsman GT6000      
     Red Bandit ...................72 Wheel Horse Raider 12
     Dirty Rat........................77 Sears Suburban
     Bowser...........................01 Murray Widebody LT
     The Green Machine ....1990 Craftsman II GT18     
Other projects
Have a question? Ask me! Type in "@MightyRaze" in your post!
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Sig214[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Sig314
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[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Empty
PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeSeptember 29th 2024, 9:00 pm

MightyRaze wrote:
RichieRichOverdrive wrote:
They’re a nice option for a taller pizza cutter than the stock 4.80s. They did just ok before i cut them, now they’re pretty great. Fit my narrow rims good too. For the price and actual intended application i cant complain.


Only thing holding me back is, I think the width would look funny on the tractor.

I’ll get a width measurement on these for you sometime soon.

Sears did great this weekend riding with @CraftsmanQuad19 at my place


[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_3015

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PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeOctober 1st 2024, 1:21 am

The width on the 5.70-8s is right about 5-1/4” and height is just shy of 17.5”, though that depends on air pressure.

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PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeOctober 10th 2024, 2:11 am

Wired in a tether kill as to be compliant with TTC rules. Used original keyswitch hole.
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_3229

Scabbed the bigger carb off my GX390. It’s a direct swap to the 301 and is quite a bit bigger.
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_3230

Bought this honda “stay choke control” off the jungle site. Allows you to add a remote choke cable like your typical briggs would have.
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_3227

This is the plastic spacer between the head and carb. While port matching it between the head and carb (it was way off even with the small carb) i got into a little vent galley it had in the face, so i just decided to face the whole thing off snd get rid of it. It has the same galley in the face of the carb anyway. This also saved some stack height with the addition of the choke control so the air box doesn’t get into the grille.
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_3231

Choke control in place. Cable attaches to left side there. You do have to trim the air box out for the cable to pass through.
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_3228

Added some self tappers on the edge of the seat because the edge keeps coming off and letting the vinyl get loose.
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_3226


The engine is happier on the top end with this carb but not happy on the low end. I was expecting a little bit of that, but not this much. I will have to play with the jetting this weekend and see if i can get any more out of it. Can especially tell the AFR is different by the lack of snap crackle pop on decel lol!
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[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Empty
PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeOctober 12th 2024, 4:48 am

So here’s a handful of 3/4” EMT all notched and beveled in odd ways…
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_3314

What the heck??
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_3313

Tree kickers!
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_3311

The conduit is pretty light stuff but there’s lots of triangulation there, be interesting to see how these hold up. These will bolt on, just havent added the hardware to do that yet.
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_3312

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[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Empty
PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeOctober 13th 2024, 12:50 am

Finished up the tree kickers. Seem to work pretty good
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_3319

Bent this piece up
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_3317

Front axle brace i guess. The idea is to have the middle section in tension so the ends of the axle cant push back.
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_3316

Braced the spindle arms.
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_3315

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[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Empty
PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeOctober 13th 2024, 9:41 pm

I like your axle mod. I was always afraid of them being weak.


[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Sig115PROJECTS:
     Marshal ........................93 Craftsman GT6000      
     Red Bandit ...................72 Wheel Horse Raider 12
     Dirty Rat........................77 Sears Suburban
     Bowser...........................01 Murray Widebody LT
     The Green Machine ....1990 Craftsman II GT18     
Other projects
Have a question? Ask me! Type in "@MightyRaze" in your post!
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Sig214[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Sig314
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PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeOctober 14th 2024, 12:56 am

MightyRaze wrote:
I like your axle mod. I was always afraid of them being weak.

I’m sure time will tell if it helps any. Though i really am more worried about just breaking a spindle or ripping the end clean off the axle lol. It does seem to be welded well enough there at least.

Added a stiffer clutch spring. The old one was just barely enough to work when dry. You could feather the clutch with like one toe lol. Now it’s pretty firm.
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PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeOctober 21st 2024, 10:37 am

Didnt get any pictures, but the sears did a little running around on trails at GER and was performing great until i broke the end of the steering shaft off. The fan gear is pressed onto a hex that is cut onto the end of the shaft, and it broke the shaft where it was turned down for the hex. Gonna have to see if i can press the old shaft out of the gear and cut a new shaft out of pre heat treated 4140, same stuff i made mutt’s straight axle out of. I like the sears steering so i’d like to keep it like it is.

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PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeOctober 22nd 2024, 10:20 am

Here you can see a distinct lack of steering gear. I’m thinking i might have to pull the engine to get this fixed.
[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Img_3510
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PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeOctober 24th 2024, 12:35 pm

Sorry to hear about your steering problems, but thx for the tip on the choke remote control.  Just what I need for my GX270 build. [Finalist] [24] RROD’s Sears Custom 6  - Page 3 1f601
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ranch king pro 08
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[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Empty
PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeOctober 24th 2024, 1:19 pm

@RichieRichOverdrive it took a minute for the picture to load I was thinking that the teeth were just stripped out but there is literally no gear there lol!
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[Finalist] [24] RROD’s Sears Custom 6  - Page 3 Empty
PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeOctober 24th 2024, 2:16 pm

torgo wrote:
Sorry to hear about your steering problems, but thx for the tip on the choke remote control.  Just what I need for my GX270 build. [Finalist] [24] RROD’s Sears Custom 6  - Page 3 1f601

Definitely an awesome addition. Beats reaching up from the seat.
Honda 16590-ZE2-812 Stay Choke... https://www.amazon.com/dp/B00AJTIZ4A?ref=ppx_pop_mob_ap_share

ranch king pro 08 wrote:
@RichieRichOverdrive it took a minute for the picture to load I was thinking that the teeth were just stripped out but there is literally no gear there lol!

It was an instant no warning pop lol, i bet that shaft has been pretty stressed for a while and just finally let go. Sears seems to have problems with making parts too hard so they crack and fail instead of flexing, having some forgiveness before they break. I’m reverse engineering a 4 pinion 633a differential and every part of it is way too hard. No wonder I’ve seen those axles and side plates shatter.
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PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeOctober 24th 2024, 2:50 pm

@RichieRichOverdrive the 633a you're working on is it one of the Roper/ayp's or is it a newer one
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PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeOctober 24th 2024, 3:48 pm

Older one. I’m designing plate lockers for both 4 and 6 pinions as well, and a locker to use splined 6 pinion GT axles in the older 4 pinion.

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PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitimeOctober 24th 2024, 4:28 pm

@RichieRichOverdrive I'm interested LOL keep us updated. I wonder if the newer 633a would be as brittle scratch
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PostSubject: Re: [Finalist] [24] RROD’s Sears Custom 6    [Finalist] [24] RROD’s Sears Custom 6  - Page 3 Icon_minitime

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