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Hoe-Trac,plow-Trac,culti-mower,37-47


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#16 jimmy G ONLINE  

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Posted May 09, 2017 - 01:51 AM

Yep and yep,I apologize ALc and thank you doug,the La-La swamp is driving me crazy and I have become careless(that's my story and I'm sticking to it and that's a good story I don't care who you are lol)

Edited by jimmy G, May 09, 2017 - 09:04 AM.


#17 jimmy G ONLINE  

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Posted May 09, 2017 - 02:43 AM

Time to say goodbye to the RLC,it No longer receives up grades,does not get the smooth flow head(it's killing me not to call it that)i can track it with the culti-mower(first pic,44-45 model shown)(hillbilly handyman) but it is now a after thought for Lauson,the problem child has arrived,the chart in pics 2,3 and 4 shows replacement blocks,they are for the most part all service cylinder no. 22655,the odd balls being the RS5001-75 just before the base no. and the RS5001-88 just after,this is the split between the early and late flange,and explains why a base no. is in the middle of a 3 page chart,in the bottom of the 3rd chart we see that these are uni-blocks so all dimensions will be the same,true but misleading,this is only halve the story,and the story can't be properly understood until the book is finished,the 23588 no. later in the chart I'm guessing is related to the RS5001-88 and is obviously a special application,the Goodall no. is great and should put the flange change at 48(possibly late 47)

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Edited by jimmy G, May 09, 2017 - 01:33 PM.

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#18 jimmy G ONLINE  

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Posted May 10, 2017 - 03:43 AM

It's time to ask my unwilling dance partner to give me the answers i can't find,I have the very bottom(RLA) and the very top(RSH) of these engine's,and the right engine(RLC) in between,in the 1st pic is the RLA head,the second pic a RLC on the left and RSH on the right,these head's show the evolution of train of thought for the day,the RLA and RLC are high compression head's,every possible place is filled,a head bolt fills between the valves on the RLA and this area is just filled on the RLC,this is hp. by brut force,but it is inefficient,the sharp edges in the combustion chamber will create vortices on the intake stroke that will translate into an uneven fuel mixture and the expansion rate will suffer,this also creates drag requiring more power to complete the stroke,this same drag is repeated on the exhaust stroke but now their is trapped exhaust over the intake valve created by the filling In between the valves,this trapped exhaust can not get to the exhaust valve without fighting the flow and will create unnecessary pressure in the way of turbulence requiring more power to complete the stroke,the benefits of higher compression have been minimalized through inefficiency,the smooth flow head on the right in the bottom pic is low compression but it has made hp. through better combustion expansion,reduced drag and a uniformed exhaust flow,it also benefits from having more surface area for cooling with the taller head fin's

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Edited by jimmy G, May 10, 2017 - 03:47 AM.

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#19 jimmy G ONLINE  

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Posted May 12, 2017 - 01:10 AM

In the frist 6 pics we see that all these blocks are the same height,this allows for commonality in parts and application,the 4 bolt block predates the 6 bolt block by at least 2 yr's,the early RSC'S in the replacement chart carry a lot of sub designations(dash single didgit) ,these are carry over special applications that have already been applied to the 4 bolt,i will pick this up later but this was my first measurement and why it appears here. (parts compatibility is the emphasis here).

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#20 jimmy G ONLINE  

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Posted May 13, 2017 - 12:41 AM

These are the stroke,bore,valve and intake port measurements(RLA port excluded)for the RLA,RLC,RSH. The RLA stroke is 1 15/16",The RLC is 2",The RSH is 1 15/16". The RLA bore is 1 3/4", the RLC is 2", The RSH is 2". The exhaust valve on the RLA is 3/4", the intake is 3/4", the RLC ex. is 7/8", the in. 15/16",the RSH ex. is 7/8",the in. is 7/8",a light briefly appears before being put out by a ton of bricks,I will leave LA LA with my head high,lots of talking to do now but not tonight,the last pic and the extra RLA information is incase any lauson collectors like the ones at SS find this,I believe my RLA is a lesser model as it is rated at 1/2hp at 2100 RPM'S,at 1750rpm's it would only be 3/8hp

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Edited by jimmy G, May 13, 2017 - 02:27 PM.


#21 jimmy G ONLINE  

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Posted May 14, 2017 - 01:43 AM

The RLC with 2" bore x 2" stroke has a bigger displacement than the RSH with 2" bore x 1 15/16" stroke,the RLC also has a bigger intake valve than the RSH at 15/16" to 7/8",the RLC is a under achiever,it needs the bigger valve and an additional 100RPM's(2400rpms) to make the 1hp threshold when the standard high and low hp ratings are set at 2300RPM'S and 1750RPM'S(as seen in the 38 engine chart and 90 percent of the tags),in the 3rd pic from the bottom on the previous post the problem is clear,the block intake port is small(1/2") and this will tax the power of the intake stroke but worse yet it is not centered and this misalignment to the manifold will not only be restrictive but create turbulence further taxing the stroke,the block is flawed and lauson will at this point change trajectory on approach to hp requirement's,the RSC will now assume the role of the RLC and it's hp rateing's are now 3/4 to 1 1/2hp,because lauson wants to increase its hp line not just move it up this new train of thought will be passed to the RSH and Even though it is the 2 to 2 1/2hp engine in reality it is the 3/4 to 2 1/2hp engine,because of larger porting and the smooth flow head the 2" RLC piston is now a overachiever and has to be destroked,because of commonality in the blocks many parts are interchangeable and my RSH is basically a RLC piston with the RLA connecting rod and throw to create a 3/4 to 1hp engine at 2300RPM's,I have my hp answer and now only wast deep in the swamp of la la,still have to give my twist on the numbers
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#22 jimmy G ONLINE  

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Posted May 17, 2017 - 01:57 AM

In the 3 page RSC chart previously posted we see 3 digits following the engine designation,the gaps between these numbers are engine's that don't apply to the replacement chart(RLA,RLC ect.),this type of tracking is known as numerological order,with known applications we can attach dates to these production no.'s,through proximity we can roughly date the numbers around a known number,my RLA (1st pic)has a 209 production no. Doug's RSC(2nd pic)has a production no. of 210,this means the next production order after my RLA was Doug's RSC,because Doug's tractor is very very early 38(about 9 tractors from being a 37)I can assume like today that the engine was probably built in late 37,by proximity I can now date my RLA,the M/W numbers are in flux in the 3rd pic of my 39 RLC,the numbers it shares with the 38 RSC are repeated twice,M/W's will have their own no.'s and sub set's as seen in pics 4 and 5 ,the tag in the 4th pic go's to a 42 culti mower and for some reason the 4 bolt gets to keep the 3 digit production no.'s,my guess is that the engine is dated and will be discontinued soon,in pics 4 and 5 we also see both these tags have the same production no.'s,are both M/W tags and nothing else in common as far as ser.no.'s,in the 5th pic the corrected 6 is what tells me it came first not the no.'s,chasing numbers like this would be a hard row to hoe

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Edited by jimmy G, May 17, 2017 - 06:00 PM.


#23 jimmy G ONLINE  

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Posted May 18, 2017 - 11:58 PM

The 1939 tractors,all tractors are styled,are named and receive platform letter designation's,there is much to talk about in these tractors so I will be doing them 1 or 2 at a time,top to bottom,Hoe-Trac,Hoe-Mate,2hp Plow Trac,2hp Plow-Trac,Culti-Mate,3hp Plow-Trac(picture the 2hp Plow-Trac between the Hoe-Trac and 3hp Plow-Trac),5hp Plow-Trac,Plow-Mate,8hp Plow-Trac,8hp Rider. search "British motor Boat tractors" if you're interested in this outher side of Simplicity. Ummm I see it's top to bottom on mobile but left to right on full site

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Edited by jimmy G, May 19, 2017 - 12:07 AM.

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#24 jimmy G ONLINE  

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Posted May 21, 2017 - 12:47 AM

With LA LA in my mirrors I'm thinking I should come clean and offer a possible explanation(excuse)for the tangent,back in the 60's I was often sentenced to granddads farm because of dad's deployments to war zones(S.A.C.),at 10yr's old I was showed how to run everything on the farm with a engine,Lombard saws,Briggs B on the splitter,pair of REO reels,a fleet of tillers with everything from a N to a 8 for engine's,feeding cow's at 5am on a 8n(how I learned to drive,couldn't reach the seat but i could the pedals,just gotta be able to see over the hood right)I loved it,have ever since,granddad had a shed for spair small engine's that served me well as a toy box,my oldest stationary is a 1916 1 1/2hp economy and i wouldn't trade 10 more just like it for the RSH pictured in the teardown above,that was my engine when I was 10,it'd start with half a wrap and not miss a beat,a quick twitch on the throttle would hit 4 grand so quick Don garlets would smile,with the lauson putting at idle I'd grab the W M suction feed and kick it till it hit,then decide what else needed to be started,the Symphony of engine's and aroma of exhaust was intoxicating(and could explain some things)and the lauson was always the first and last running,I think of the times and granddad just looking at it,ok enough about me and back to the tractors, the power cultivator is gone sorta,it has been cranked up from 1750rpm's to 2400rpms,gets a hood and grill and is now the hoe-Trac,the platform gets a B designation,in the pic below you see the bottom of the B frame,it is cast iron and cast for multiple applications,this is test bed 101 and all the holes had bolts in them in 38 but only the small pattern is used in 39,this will change again in 40

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#25 jimmy G ONLINE  

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Posted May 22, 2017 - 02:37 PM

The hoe-mate in the pic dose not seem to be received well, the JAP 4cycle powered po-go of 38 this tractor replaces and is based on would have been very efficient and easy to operate,but the obvious want to use a in-house 2cycle(just repeating what i read on the 2 stroke in this) engine and the addition of what appears to be bicycle handlebars seems to have sidelined this tractor early,two stroke engine's of this time period were very hard on gas,extremely loud,smoked like a train(the cool old ones)and vibrated like a blowout at 60mph,cycle handlebars are not designed for this angle,the grips will rotate in your hand and your wrist's will be at sharp angles,would have been better named as "choir to run mate" lol, this tractor dose reappear later with the needed upgrades,the hood's on the BMB 39 tractors are basically M/W and make a good identifier but they require much modification in the case of the hoe-mate and plow-Mate,BMB will address this when the company moves in 40 and production is resumed.

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Edited by jimmy G, May 22, 2017 - 03:47 PM.


#26 jimmy G ONLINE  

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Posted May 24, 2017 - 12:08 AM

2hp Plow-Trac(C platform),2 1/2hp(i believe)Cult- Mate,I can't explain one with out the outher,far as I know this is the rarest simplicity built tractor,with only 3 being made it about has to be a demonstrator for M/W of the export offering,the cult-mate on the other hand is a ringer and outher than minor upgrades go's unchanged through the time line(and some I'm thinking),in pics 1,2 and 5 we see the right side of Simplicity and M/W tractors with left side breather placement,I never knew what the left side looked like until I seen the Cult-Mate in the 4th pic.

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Edited by jimmy G, May 25, 2017 - 01:45 PM.

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#27 GWest OFFLINE  

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Posted May 24, 2017 - 04:06 AM

I'm thinking Farmerik has/had one of these. Recall him mentioning the flat drive belt.

 

Garry


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#28 jimmy G ONLINE  

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Posted May 24, 2017 - 08:09 PM

With a little luck Farmerik might find this and post some pics and no.'s,with a lot of luck his flat belt will be left side drive(5hp)and be able to prove or disprove something I'm going to post soon.

#29 jimmy G ONLINE  

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Posted May 25, 2017 - 11:57 PM

3 and 5hp plow-Trac's,plow-Mate,these tractors change little in there place in the time line,the 3hp is now the well known C platform but what about the 5hp? Since I'm allready kicking up dust and making a stink I've decided to add picking a fight to the list,I'm giving the 5hp the benefit of doubt and going to call it the D,all these tractors have letter designation's relative to size,3/4hp=A,1hp=B,3hp=C,5hp=?,it has to be,the surprize for me will be not seeing a D in the ser.no of a styled 5hp,I'll be looking for this tractor everywhere and sooner or later there will be a definitive answer,I'll address the letter designation's in the next post.

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#30 jimmy G ONLINE  

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Posted May 27, 2017 - 04:24 PM

The 8hp tractors,plow-Trac,Team-Trac. These tractors will cost M/W dearly,the 8hp plow-Trac is deamed unmanageable,with 3hp more than the 5hp it's implement's would have increased in size and weight,because the 5hp and 8hp (AF-AH)share the same block the weight of the engine's would be the same,my personal take on this is that the tractor would have gotten overly unbalanced,BMB version's of this tractor have longer handlebars for clearing the bigger implement's and probably for additional leverage,the video's of these bigger BMB tractors plowing are quite telling(3rd pic),not to hard to see the problem with the Team-Trac,the light frame would be a very weak link between a 8hp engine and a 12in. plow,none the less M/W gets credit for the first rider with this tractor,it's also possible M/W got Sulkys in 38 as they were included in the 38 blanket order to simplicity,my theory on the Team-Trac is that M/W got wind of the DB-RT and forced the production of the Team-Trac with no R&D,the culti-mower(model A)was conceived by Donald before the transfer of contract from Gilson-Bolens to Simplicity and should have came out in 39 but was sidelined for the development of the Team-Trac and why the A designation is missing from the time line in 39 and 40,these tractors would have hurt sale's across the board for M/W but the real loss for M/W comes from delaying the quick hitch on the culti-mower ,as a work for hire tractor the rights to it would have been M/W's,when the contract expires in 40 so does M/W's rights to the quick hitch.

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