Retro Hit and Miss Engine HM-01 7cc 4-Stroke Horizontal Internal Combustion Engine Model

SKU ENGINE-xB4ZfQ

(17 customer reviews)

$389.99 $399.99Price range: $389.99 through $399.99

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2018121401450592

RETROL ENGINE HM-01 7cc Engine

Introduction:

The RETROL team has spent 4 months designing and developing this new Hit & Miss engine model, designated as “HM-01”. This hit and miss engine adopts carefully selected high-quality materials and exquisite craftsmanship to assure the engine’s reliability and durability. The design features a transparent, adjustable flow main oil cup, a new carburettor and a reverberating exhaust pipe. The two large flywheels are well weighted, with a spring loaded ball and split wide face pulley, making the engine very practical for power output. A special design with a rarely seen “fast and slow gear change” allows the engine to be switched between super slow speed and high speed for power output. This makes the engine more playable and the player more operational. Product technology: the whole machine Ferrari red paint using electrophoresis surface treatment process, the main components (body main body, flywheel, connecting rod, etc.) are made of stainless steel 304 casting, all assembly surface using CNC finishing, high carbon steel hardened one-piece crankshaft. This makes it not only a playable engine model, but also a highly collectible mechanical artwork.

Features:

Exquisite Manufacturing Process:

This Hit-and-Miss engine model is made of high quality metal materials and manufacturing process to ensure its quality and accuracy. Each component is precision machined and assembled, giving the whole model a very realistic look that will catch the eye.

Beautifully Detailed Features:

The model engine is beautifully designed and every detail has been carefully considered and manufactured. The engine surface is painted red to maintain the original look of the old agricultural machine, with realistic sound and movement, adding to the impressive vintage classic flavour.

Easy to Display and Operate:

the model engine is all set and ready to run, with an easy to understand operation and display. It can easily be displayed anywhere, for example on a desk or in a collection cabinet. You can easily control the operation of the engine by starting and stopping it manually.

Real Principles:

This model engine is also a great tool for education and learning. You can learn how the Hit-and-Miss engine works and its mechanics by watching it in action, igniting the fuel and producing unique sounds and movements when you start the engine.

A Beautiful Gift:

This model engine is perfect for mechanics enthusiasts, collectors and anyone interested in mechanical principles. It is not only a decorative piece but also a very valuable collector’s item. It can also be an unforgettable gift for collectors of stationary model engines.

Warm Reminder:

The engine does not include accessories such as spark plugs, CDI ignition, fuel tank, fuel line, base and wooden box for the equipment, please purchase extra according to your needs.

Specifications:

  • Material: Metal
  • Colour: As Shown;
  • Brand: RETROL ENGINET
  • Type: HM-01
  • Shape: KIT or Pre-assembled Version
  • Dimensions: approx. 171313 cm
  • Weight: approx. 1.8 KG
  • Displacement: 7cc
  • Cylinder: horizontal single cylinder
  • Stroke: four-stroke
  • Bore: 20mm
  • Stroke: 22mm
  • Cooling Method: Evaporative water-cooled
  • Lubrication Method: mixed oil + oil cup lubrication
  • Starting Method: manual starting
  • Ignition Method: CDI igniter
  • Spark plug type: imperial thread 1/4-32 ME-8 spark plug
  • Type of fuel: petrol 92 and above
  • Type of lubricant: four-stroke engine oil (oil to petrol at a 1:25 mix ratio)

Packing List:

  • 1 Engine
  • 1 Instructions

Customer Reviews (4.82)

(17 customer reviews)

17 reviews for Retro Hit and Miss Engine HM-01 7cc 4-Stroke Horizontal Internal Combustion Engine Model

  1. Retro Hit and Miss Engine HM-01 7cc 4-Stroke Horizontal Internal Combustion Engine Model photo review
    John Lee
    April 7, 2024
    This was the first model engine I have built and I’m delighted to say everything went together beautifully. The components are well made and apart fro...More
    This was the first model engine I have built and I’m delighted to say everything went together beautifully. The components are well made and apart from removing a few burrs here and there they all assembled just perfectly. I picked up a few tips from the experts on YouTube along the way and enjoyed the challenge of getting the ignition timing just right. I have found lighter fuel (Shellite in Australia) mixed 40:1 with 2 stroke oil much cleaner burning than petrol and oil mixed at 25:1 as recommended in the instructions. Easier to start as well. I would like to see a battery box supplied with the ignition set and details of the batteries required. Also as others have mentioned, a longer HT lead to the spark plug is needed. Altogether though a beautiful well made engine that I really enjoyed building. Any suggestions what to build next?
    Wade Riles
    March 21, 2024
    Still waiting to hear from service department engine is missing cylinder.
    Gary Harris
    March 12, 2024
    I am still waiting for the parts to finish the engine. I will give you a review when I get the engine completed.
    Gary
    Retro Hit and Miss Engine HM-01 7cc 4-Stroke Horizontal Internal Combustion Engine Model photo review
    Harold
    March 6, 2024
    As my son was 10 years old and really wanted to build a machine himself, having watched and participated with his father for a long time, I bought the...More
    As my son was 10 years old and really wanted to build a machine himself, having watched and participated with his father for a long time, I bought the HM 01 kit and let him build the machine according to his own ideas without any help.
    Here is the result.
    Retro Hit and Miss Engine HM-01 7cc 4-Stroke Horizontal Internal Combustion Engine Model photo review
    Trevor Bright
    February 21, 2024
    Great little engine. Two minor issues, the spark plug lead is too short for the sled. Yes, it did fit but stretched that made the install wrong and un...More
    Great little engine. Two minor issues, the spark plug lead is too short for the sled. Yes, it did fit but stretched that made the install wrong and unreliable. I inserted an extension of about 2 niches that fixed the problem. The second issue was the counter-weight flywheel auto centering shim. It did not grip the crank shaft. Again, I needed to add a filling shim to obtain correct grip on the shaft. This is my first model engine, it is great. Runs very nicely and has become a talking piece within the family. I would recommend this little engine, albeit with some minor issues.
    regards, Trevor Bright.
    Rob Botzenhart
    February 12, 2024
    awesome hit and miss engines model. Engine DYI is great. fast service, great communication. Can't wait to buy again. Engine is fun to put together and...More
    awesome hit and miss engines model. Engine DYI is great. fast service, great communication. Can't wait to buy again. Engine is fun to put together and runs great. Attention to detail was way better than expected. Very happy.
    Retro Hit and Miss Engine HM-01 7cc 4-Stroke Horizontal Internal Combustion Engine Model photo review
    Jonathan Widelo
    January 11, 2024
    I admit, I was a little skeptical at first ! I wondered if the Model I received would look like the one on The Website ! After talking to a few frien...More
    I admit, I was a little skeptical at first ! I wondered if the Model I received would look like the one on
    The Website ! After talking to a few friends I decided to order one!! I am 100 % glad I did!! These are very well made, highly detailed engines! They were packed very well, arrived safely !!
    Probably one of nicest small hit and miss models I have seen for sale online! Mine arrived safely, very well packed! I am looking forward to putting some gas in mine and running it soon! I have received great customer service from this company and would definitely purchase products from them again! I included a picture of mine on the skid before i fastened it or the fuel tank down!
    Mark Scaletti
    January 3, 2024
    Wonderful!!!! Truly well designed and built engine. Very happy customer here.
    Scott
    December 29, 2023
    I originally gave this engine 1 star because the connecting rod was binding to the crankshaft. After unsuccessfully polishing the connecting rod for a...More
    I originally gave this engine 1 star because the connecting rod was binding to the crankshaft. After unsuccessfully polishing the connecting rod for a while, I used my dial caliper to measure the crankshaft and assembled connecting rod with bearings installed. It turns out that assembling the connecting rod had distorted the bearings, and they were out of round. Luckily I had some reamers that I used to true up the bearings (most people would not). After that I was able to assemble the rest of the engine, at which point it had no spark. After more troubleshooting (with no help from the instructions), it appeared that the breaker points were not closing so I bent the ignition electrode trigger #1 and was able to get spark. I'm hoping this was the correct thing to do. They could definitely do a lot better with their instructions and machining tolerances.
    Jean Claude Lemieux
    December 14, 2023
    You make a product of excellent quality, the parts are carefully engineered, I did not have to make special lapping to ensure proper operation. I must...More
    You make a product of excellent quality, the parts are carefully engineered, I did not have to make special lapping to ensure proper operation.
    I must admit that I have a good experience in mechanical adjustment; it helps because a neophyte would certainly have some difficulties.
    Jean-Claude
    Lucerx4
    December 11, 2023
    It is a great engine.
    Starts easily, runs pleasantly well, whether it is continuous ignition or hit and miss.
    The engine also looks great.
    JOSEPH SCHMELZER
    December 4, 2023
    It was amazing. more perfect in every way then I expected. The machining was perfect. I am so impressed with it. Instructions need to be found online ...More
    It was amazing. more perfect in every way then I expected. The machining was perfect. I am so impressed with it. Instructions need to be found online but only needed for a couple adjustments. I very much recommend this produce.
    Retro Hit and Miss Engine HM-01 7cc 4-Stroke Horizontal Internal Combustion Engine Model photo review
    P.C.
    November 28, 2023
    This is a great piece, I have been extremely impressed with all the details. The gas body is super nice the connecting rod details and being cast blew...More
    This is a great piece, I have been extremely impressed with all the details. The gas body is super nice the connecting rod details and being cast blew my mind. I can wait yo get everything assembled and have it running. Absolutely no diappointment,
    James Carr
    November 21, 2023
    Beautiful workmanship I thought I was getting the parts in the advertised picture of the engine, but there was no instructions, glass oiler, or carbu...More
    Beautiful workmanship
    I thought I was getting the parts in the advertised picture of the engine, but there was no instructions, glass oiler, or carburetor.
    Do I have to buy them separately.?
    Henry E Bangsberg
    November 19, 2023
    I got my kit version and it looks great. I have assembled it and am very impressed by the quality and detail of the parts. I haven't run it yet, but i...More
    I got my kit version and it looks great. I have assembled it and am very impressed by the quality and detail of the parts. I haven't run it yet, but it has been so much fun to build that I am sure it will run very well without much effort.
    Retro Hit and Miss Engine HM-01 7cc 4-Stroke Horizontal Internal Combustion Engine Model photo review
    Thomas McGrath
    November 17, 2023
    MUSA can be proud of this very special model and an amazing price. JUST BUY IT Check out my full review video...chapters if you want to skip to the en...More
    MUSA can be proud of this very special model and an amazing price. JUST BUY IT
    Check out my full review video...chapters if you want to skip to the end:)
    AT005
    September 7, 2023
    Excellent , and good communication.
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