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 Dynamark offroad mower

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trentonkamel
MightyRaze
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Joe_the_mower_man_1320
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PostSubject: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeFebruary 7th 2022, 4:58 pm

This is my dynamark that I pulled from a shed after 20 years. I built it with 27 inch rear tires. This is the 1st tractor i ever built. Unfortunately the 930 transaxle broke yesterday so a build is to come in the spring Dynamark offroad mower 20210914
Dynamark offroad mower 20210913

I plan on replacing the 12hp Briggs with a 20hp opposed twin and adding different wheels and tires and possibly an 820.


Last edited by Joe_the_mower_man_1320 on February 7th 2022, 4:59 pm; edited 1 time in total

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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeFebruary 7th 2022, 4:59 pm

Dynamark offroad mower 20200610
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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeFebruary 7th 2022, 5:05 pm

Dynamark offroad mower 20220210
Dynamark offroad mower 20220211
Dynamark offroad mower 20220212

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Brianator
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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeFebruary 7th 2022, 5:33 pm

Cool mower dude I like the low and wide stance! Ouch... that hurts, get er fixed so we can see more! Lol


My All Terrain Tractors:
- "The WarHorse" ~ 1984 Sears Craftsman LT(V)11 (MTD Built) (Romping in Progress!)
- Roper "Trailblazer" ~ 1986 Roper LT110CR (Trailblazing in Progress!)
- The "Mud Duck" ~ 1969 Bolens 1225 Hydro (2022 Build Off 2nd place!)
- The "Silver Bullet" ~ 1984 Sears Craftsman LT(V)11 (MTD Built) (Part 1)
- The "Silver Bullet" (Take 2) ~ 2024 Build Off entry (Work in progress)
- Roper "Offroadster" ~ 1979 Roper T4328 (Romping in Progress!)
- 1973 Massey Ferguson MF12 ~ (Sold to a good home)



                             Click Here To See The DIY and Build Threads I've Created!

                                            ~My Real Hobby Is Collecting Projects!~
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TechnoChicken
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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeFebruary 7th 2022, 6:43 pm

The wide stance mowers seem to always snap the axles, too much stress I guess
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Joe_the_mower_man_1320
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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeFebruary 7th 2022, 8:28 pm

The Wheels may come back on a future project but I am unsure at this point
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mr.modified
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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeFebruary 7th 2022, 9:28 pm

You could probably make a brace to hold the bottom bolts of the transmission. That way even with the wider tires it wouldn't spread out like that and crack the case.

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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeFebruary 8th 2022, 7:19 am

i gotta get me a dynamark someday
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Nevadablue
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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeFebruary 8th 2022, 11:12 am

The makers don’t plan for our rough treatment, but WE can plan for it.

A gusset and plate outside the frame could pick up all 4 bolts out there and probably prevent such mayhem. A lower cross brace could be added too.

Dynamark offroad mower 690dcb10

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Rustbucket Garage
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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeFebruary 8th 2022, 1:35 pm

I’ve always been of the mindset that the best way to do a setup like this is a doc locker/live axle and to put some bearings and build an axle housing out of steel tube. I don’t know if I explained that good but I hope it helps. Might be Monopoly money but it’s my 2c

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Joe_the_mower_man_1320
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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeFebruary 8th 2022, 6:12 pm

Thanks guys for all the feedback!!! Does anybody know if an 820 will fit in a dynamark 12/39
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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeFebruary 8th 2022, 6:24 pm

Yeah, @redzz02 has one in his I believe.  The mud dynamark build somewhere.


Dynamark offroad mower Sig115PROJECTS:
     Marshal ........93 Craftsman GT6000      
     Red Bandit ...72 Wheel Horse Raider 12
     Dirty Rat........77 Sears Suburban
     Bowser..........01 Murray Widebody LT
     Other projects
Have a question? Ask me! Type in "@MightyRaze" in your post!
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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeApril 30th 2022, 5:52 am

A very nice model, I haven't seen such on sale for a long time. I like that you repair it yourself; rarely will anyone undertake the repair of such equipment. I usually don't mess with this and just pay specialists to fix this piece of equipment for me. I recently ordered equipment for the farm, and I hope that I will not encounter any breakage soon since I paid enough money to not know the problems. I would also like to know who of you also ordered something there and whether everything is fine with your equipment after some time
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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeMay 4th 2022, 10:00 am

An Update of sorts, I Guess, So the dynamark has not been worked on and will be getting some upgrades soon. All I have done is move it to the barn so its not taking up any valuable room for my truck project. So Upgrades SOON!

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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeSeptember 20th 2023, 11:23 am

Its has surely been a long while, Started work on the ol rig here recently. So i Decided in early august to gut one of my other tractors because she was totaled mechanically. The Old huskee ( Code name ladybug) was gutted for her wheels rear transaxle. The while it was out i had decided to pulley swap it. Using random crap lying around, i made it go about 26 mph
Dynamark offroad mower Screen12

(Featured in this photo are my 78 ford shortbed and the dynamark mower)

Anybody have an idea for breaks on this think? The tranaxle breaks do not work. Any ideas are welcome.

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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeSeptember 20th 2023, 7:30 pm

Old Ford’s a sweetheart!

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Joe_the_mower_man_1320
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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeSeptember 20th 2023, 9:37 pm

Shes a sassy old ferd for sure, very temper-mental

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Joe_the_mower_man_1320
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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeSeptember 22nd 2023, 12:21 pm

Ok, took the Dynamark out for a ride the other day and it definitely needs some brakes. Anybody have an idea for that?
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MightyRaze
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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeSeptember 22nd 2023, 12:29 pm

Brakes have always been my Achilles with the shift on the go transaxles. I think @RichieRichOverdrive has had some luck upgrading.


Dynamark offroad mower Sig115PROJECTS:
     Marshal ........93 Craftsman GT6000      
     Red Bandit ...72 Wheel Horse Raider 12
     Dirty Rat........77 Sears Suburban
     Bowser..........01 Murray Widebody LT
     Other projects
Have a question? Ask me! Type in "@MightyRaze" in your post!
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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeSeptember 22nd 2023, 6:31 pm

I've seen a few good methods done. The most effective one is attaching (to the stock disc) a band brake or hydraulic disc brake to the stock location. The gear reduction of the transaxle makes those work really well. The easier method is to attach a brake rotor to the axle and add hydraulic brakes there. I have an ex250 caliper and master cylinder on Mutt and it works just kind of ok. They at least don't wear anywhere near as fast as stock brakes, at least with OEM brake pads. The advantage to hydraulic brakes in the stock location is that you can use a smaller light duty setup like that from a pit bike or moped or what have you.
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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeSeptember 22nd 2023, 9:20 pm

Unless you've locked the rear axle brakes aren't super effective at any kind of speed or going downhill anyhow, one wheel will lock up and the other will roll and it can actually put you into a slide. I'd just try to get them working best I could, you can make new pads out of car/truck pads but be careful to not breathe in the dust created by modifying them to fit!

If you want GOOD brakes, you can install cheapo offshore atv front drums on the front wheels...I've done it but am not the first and let me tell you that they're awesome!


My All Terrain Tractors:
- "The WarHorse" ~ 1984 Sears Craftsman LT(V)11 (MTD Built) (Romping in Progress!)
- Roper "Trailblazer" ~ 1986 Roper LT110CR (Trailblazing in Progress!)
- The "Mud Duck" ~ 1969 Bolens 1225 Hydro (2022 Build Off 2nd place!)
- The "Silver Bullet" ~ 1984 Sears Craftsman LT(V)11 (MTD Built) (Part 1)
- The "Silver Bullet" (Take 2) ~ 2024 Build Off entry (Work in progress)
- Roper "Offroadster" ~ 1979 Roper T4328 (Romping in Progress!)
- 1973 Massey Ferguson MF12 ~ (Sold to a good home)



                             Click Here To See The DIY and Build Threads I've Created!

                                            ~My Real Hobby Is Collecting Projects!~
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Joe_the_mower_man_1320
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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeOctober 16th 2023, 11:42 am

Did more work on the old rig this weekend, Added an old school pan seat off of an old rugg mower, built a front push bar/pick up point. Also did some clearing of some branches and man does this thing pull.
Dynamark offroad mower Screen14
Dynamark offroad mower Screen13

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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeNovember 28th 2023, 12:29 pm

Dynamark offroad mower Screen15
A Little Bit of an Update for you all, It has snowed here in iowa and went to ride around on the old rig and started to here some engine noise(Bottom End). I think for now I'm going to run it till it blows, then swap in an opposed twin briggs. I also ordered some led pod lights so a new front bumper is in order.

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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeNovember 28th 2023, 8:52 pm

Joe_the_mower_man_1320 wrote:
Dynamark offroad mower Screen15
A Little Bit of an Update for you all, It has snowed here in iowa and went to ride around on the old rig and started to here some engine noise(Bottom End). I think for now I'm going to run it till it blows, then swap in an opposed twin briggs. I also ordered some led pod lights so a new front bumper is in order.
Yep, that's how we do it round here, we buy them cheap, run them into the ground and then sell them cheaper Smile

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PostSubject: Re: Dynamark offroad mower   Dynamark offroad mower Icon_minitimeDecember 4th 2023, 10:44 am

Started tearing into the old mower this weekend after she ate a belt. Got some new lights coming today and my stickers for @MightyRaze are supposed to be here today so probably a big update later this week.
Dynamark offroad mower Img_2013

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Dynamark offroad mower Img_2014

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