Retrol HM-01 Hit & Miss engine. In 2023 I pre-ordered a Retrol HM-01 hit and miss engine from Enginediy which I knew would take a couple of months for delivery because it was still in pre production. I was happy to wait and I was kept informed of progress and expected delivery. It duly arrived very well packed and beautifully made. This was my first attempt at building an engine but it went together perfectly. The instructions were mainly pictorial and a little more written description would have helped but all my questions were promptly answered by their excellent service department. I have been running this engine for four months now and I’m delighted with the design and quality. I would certainly recommend Enginediy and will be using them again.

No customer service & they delete negative reviews I've made several orders from them and always got what I ordered. One expensive item (<$1K) arrived with some inexpensive parts missing. I provided them with the prod #, missing parts#, part description, & photos from their assembly manual. Many emails were exchanged. Still, the service tech was unable to correctly identify the part. He guessed at it and twice sent me the wrong parts and then gave up. When I wrote a negative review, they pulled it off their site.

Just go ahead and pull the trigger! The ordering process was easy, tracking info was timely, and engine was packed carefully. I incorrectly thought a component was missing and contacted customer service. They quickly responded with directions to find the part in my kit. i am so happy with Engine DIY tgat I bought ANOTHER product from them!

Great product-excellent fit and finish - superb service I was pleasantly surprised by the excellent fit and finish on this mini drill press. Very well made product. Was looking for a small tool to do some very tiny work on the deck of the boats I make and yet take up little space on the workbench. And this does it well. Well worth the price and love EngineDIY free shipping and fairly fast delivery to Canada - hassle free for sure. Had an issue with the power supply not included but the Customer Service came through and solved my problems immediately - Good Job!

They don’t respond to emails regarding… They don’t respond to emails regarding their product once they have your money. I purchased 2 engines from them and they both don’t work. Don’t waste your money here