HOW-TO - Small Engine Crankshaft Swap

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7 жыл бұрын

HOW-TO - Small Engine Crankshaft Swap
Ever wonder if you can swap engine crankshafts? Well the answer is yes!
Watch as I show you how this is easily done!
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Whether it be a handheld, two stroke, two cycle engine like a chainsaw, weed eater, weed wacker, string trimmer, grass trimmer, line trimmer, hedge trimmer, strimmer, brush cutter, leaf blower, or four stroke, four cycle units like a lawnmower, wood splitter, lawn tractor, snowblower, pressure washer, generator or a ride on mower that needs parts installed or replaced, I’m your go-to guy.
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Due to factors beyond the control of DONYBOY73 “The Small Engine Doctor”, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. DONYBOY73 “The Small Engine Doctor” assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. DONYBOY73 “The Small Engine Doctor” recommends safe practices when working with power tools, hand tools, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of DONYBOY73 “The Small Engine Doctor”, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not DONYBOY73 “The Small Engine Doctor".
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Пікірлер: 221

@davemarks7322 4 жыл бұрын

Well done and even though there is no crankshaft swap in my future, I watched the video anyway just because I like the way you do them.

@Pwl47 7 жыл бұрын

Using the air tool to loosen the flywheel was a valuable tip. I always learn something from these videos. Thanks for posting them.

@WillLinnebur 5 ай бұрын

The video makes it look so easy. And it was! I've grown to love small engines. Cheap education and entertainment.

@ThunderDivine 7 жыл бұрын

Air hammer tip is great, it has so many uses we tend to forget, great!

@cherylkygirl7181 3 жыл бұрын

EXCELLENT VIDEO. One of the best detailed videos I've seen for removal and replacement of crank shaft. Thanks. I think I can do it now!

@xecukc7010 2 жыл бұрын

This video, and another I found specific for a 196 CC Honda clone, really helped me swap out a 5/8" shaft to a 3/4" for the addition of a torque converter on my minibike. Thanks!

@lmalino695 7 жыл бұрын

Three excellent skills; mechanical excellence, video presentation excellence, and teaching excellence. Thanks.

@ZippoVarga 7 жыл бұрын

It won't be long and you'll be in the 100K club Donny! Congratulations on your channels success! Also, great video as always! Cheers!! Zip~

@donyboy73 7 жыл бұрын

thanks

@99carnot 7 жыл бұрын

Very helpful step-by-step instructions. Original engine with old style starter clutch and all metal parts was nice to see.

@seapilot4042 7 жыл бұрын

Keep in mind, I missed this during rebuild of a 1980 3.5hp Briggs vertical shaft, the crankcase gasket, there are two for this engine, this one needed the .015. I could barely pull the engine through, broke in all back down miked everything put it back together and still was so stiff, I did get it to start. but pulling it through was just too hard to do and I knew there was something else that needed my attention. The dealer had sold me a .005. I didn't give it a second thought, until I remembered reading about the two different thicknesses. What a difference a few thousands of an inch make. Great channel.

@GarwoodNick 7 жыл бұрын

Thank you for this great video. I especially appreciated the efficient presentation and concise editing. Well done!

@willatkinson953 5 жыл бұрын

Excellent video! Left absolutely no questions! Perfect and thank you.

@chamilaherath7875 5 жыл бұрын

Thanks you so much for putting these videos up. I successfully rebuild a honda gx 160 thanks to some of your vids. By the way I am from AUS.

@joekoke1 6 жыл бұрын

Don..you are awesome. You are a life saver. Thanks for your videos..

@arthurbania372 6 жыл бұрын

Very nice and helpful video. I had to replace my crankshaft in the same motor as that one, but crankshaft was slightly different. Thanks Dony:)

@bluehorseshoe7171 7 жыл бұрын

Well timed video. I'm just about to swap out crankshafts from two similar Briggs and Stratton Motors. Thank you sir.

@michelpaulcote353 7 жыл бұрын

Enjoyed this great video and, as always, learned some excellent tips.Thanks

@GrassDaddy 7 жыл бұрын

I love the videos very cool learning how these work!

@jorgeposadas1192 2 жыл бұрын

I haven't seen you in awhile, nice to see your videos are still up, nice job.

@michaeljdestefano1208 7 жыл бұрын

Wow, excellent job my friend!! One of the most informative, concise videos I have ever seen. I wish you could help me with 1 year old Briggs and Stratton with a bent (I think) Crankshaft. I found out you can not cut a 3/4" reinforcing rod with a Lawnmower. LOL!! It was hidden below some weeds I was trimming. Should have used the weed wacker, now I know that. I did replace the Flywheel keyway and the Blade, now it starts. It runs fairly well at full speed but at idle it vibrates like crazy. Oh well, you live and learn.

@donyboy73 7 жыл бұрын

I usually do not end up repairing bent cranks

@semco72057 7 жыл бұрын

I enjoyed watching you change out the crankshafts on the two engines and believe that I could do that. I need to figure out how to get my power generator going which have not been started in many years. It never was used since I had problems with it since buying it, and installing the oil in it. The newest one worked fine, but I never used it since our power never stayed off long, when we lost electricity.

@queenstownkid 7 жыл бұрын

Excellent video as always dony

@zyplex1 7 жыл бұрын

Excellent video as always, 👍

@philbrown2270 Жыл бұрын

Hi, thank you for a very informative video and very helpful for me as a layperson.

@rats-the-tech1688 7 жыл бұрын

Well done Don. The video was very well made.

@lukemartin7029 7 жыл бұрын

great video Donny. thanks for posting!

@clauslundberg9224 7 жыл бұрын

Nice walk-through Don - video is HQ in content. Great weekend to all.

@MrGoosePit 7 жыл бұрын

Nice job Don. Enjoyed the video. Thanks!

@gregjr1657 5 жыл бұрын

Another great video....As always, well done, Thank you

@jcs6347 7 жыл бұрын

Very informative and well done, thanks!

@angelorg77 7 жыл бұрын

thanks! donyboy, !! from now on, I will only use higher octane on my lawnmower :-) you're boss man !! :-)

@jamesmullins3219 7 жыл бұрын

excellent video, great photography & edits. Sometimes it may be better to search for a used engine with the right crankshaft. Thanks

@360Prairie 7 жыл бұрын

Another great video. Holey moley, nearly 100,000 subs!!!

@mrjenybean Жыл бұрын

This taught me so much thank you!

@SteveRobReviews 7 жыл бұрын

Nice one Dony. 👍👍

@benkiist8218 4 жыл бұрын

Great video! Love the way you walk through everything. What is your parts washer, and what do you reccomend for someone who would be looking?

@nicolauscory2065 6 жыл бұрын

Awesome vid. Very helpful.

@joev3315 7 жыл бұрын

great video , like to see more of these repairs.

@oliveoilsjim 4 жыл бұрын

Was in a hurry one day putting new rings in a Briggs and didn't emery the crankshaft before reinstalling the sump! I thought how bad can it leak? It didn't leak much, just enough to run down on the drive plate on a Snapper rider! Had to stop cutting and clean the plate every 20 min from then on! Live and learn!!

@treebutcher2000 7 жыл бұрын

Very helpful video thanks.

@alejandromejia4996 5 ай бұрын

Awesome video i had a 1965 briggs with a plane crank shaft the was damaged like someone tryed to grind it an make it a 5/8ths shaft an hammered on a 5/8ths shaft an bent the crank i had already threw the block in the recycle bin when i found this video the cylinder walls looked new an the valves looked like they had never been ran more then a hour so i got some other engine with the intake ceased an took out a double sided bearing pto side crank that was on a newer engine style an put it on the old 1965 block i used the newer style head an all the hardwear because the old bolts where flatheads bolts an they never tighten good the rip cord side was a short shaft so i used a new cup an new started the engine loooks cool an i saved the original engine to my classic minibike👍 🎉

@eduardomoro6116 3 жыл бұрын

Excelent video very useful

@TOWNCARBUBBA87 Жыл бұрын

Good job brother 👍

@fleetwin1 7 жыл бұрын

Good ol Briggs, so simple and reliiable

@BrucesShop 7 жыл бұрын

Well done.

@jonmyers8046 7 жыл бұрын

Hi Bruce! :) lol!

@JoshKilen 7 жыл бұрын

nice job, thanks for sharing

@Thebrickrobloxcat 7 жыл бұрын

hi donyboy, i have a question for you about a small engine briggs and stratton sn 128m02/0134f1 the engine was blown, prob was the connecting rod. i did replaced it with the right match, however when i tighten the bolt ,100inch lbs and tried to spin the crank shaft it won't turn at all.

@benjaminrich9396 7 жыл бұрын

Nicely done

@kaiok1777 7 жыл бұрын

Great video!

@CarlJohnson-ry3gc 4 жыл бұрын

Ok!!! Now that was amazing.

@farmuntilthemoneyrun 4 жыл бұрын

Hi Don, thanks for making this video! You are a great teacher. I have a question: what were the torque specs for the bolt on the flywheel? Thank you!!

@rusty.spires7931 7 жыл бұрын

YeSir.u.The.Man... big thumbs up...

@frankg3278 3 жыл бұрын

I have the same situation with a Honda Gx390. It has a long taper and I want to replace it with a keyway shaft. Do you think it will fit ?

@acollins9277 3 жыл бұрын

Nice job.

@Jflowboston1 7 жыл бұрын

you did a good job,

@mordechailevinson8646 Жыл бұрын

Thank you....Well Done Video....

@JosephStalin1941 Жыл бұрын

Excellent video! I am working on a motor with bearings on the crankshaft and I was wondering how to match up the timing marks

@carlschroeder6811 3 жыл бұрын

@donyboy73 , Is swapping a sump cover from another engine ever a problem due to the block being line bored for the crankshaft during manufacturing, thus pairing the engine block with it's own specific sump cover? Also, any need to check crank endplay after that swap?

@kieronr1 6 жыл бұрын

excellent video.

@SedatedByLife Жыл бұрын

Welp. Now I know how to do my vertical shaft 8hp B&S. Thank God it's easier than I thought. The things I do to restore an old mower keeping as much original as possible...

@vernonball4581 6 жыл бұрын

I need to do this to my pressure washer, will it be about the same way as you did here?

@duchy1957 6 жыл бұрын

Thank you nice job,

@rameshnatu7731 7 жыл бұрын

nice explained sir.

@demetriussantosky4838 7 жыл бұрын

Can these bolts on the sump cover be different on a different motor because mine are 7/16

@aimanramli7570 2 жыл бұрын

Hii, can i know whether i can attach heavier flywheel weight more than the small engine into the output shaft of that small engine?

@villadavinapanamajack3916 4 жыл бұрын

Well done son..your a great mechanic and your videos are succinct and easy to follow. Have a question..Honda GVC 160 sheared the key drive sprocket for the timing belt. Have you ever seen that before? Again...great videos..keep up the good work. Jack in the Republic of Panama

@swiftclaw9402 7 жыл бұрын

On the engine you were running at the end (the five hp b and s) I am currently working on one and wondering if you could make a video on how the governor linkages are set up on this particular engine because I have done research and cannot find a diagram for the engine

@grantwilliams5052 7 жыл бұрын

GREAT CLIP

@buddylittle7759 7 жыл бұрын

very nice job.

@flunkywill2000 7 жыл бұрын

do you think you should torque twice? in my experience the bolt always moves a little tighter the second time.

@Carlostype 7 жыл бұрын

great stuff!

@dubber2001 5 жыл бұрын

Hey man, I need a crank for a 7hp Briggs. I can't seem to find much on 7hp. 6hp and 8hp. But not much about the 7hp. Can I use a crank from anything else? Thanks

@paulmeynell8866 4 жыл бұрын

Brilliant thank you

@declyn8 7 жыл бұрын

THANK YOU!!!

@hp11208 6 жыл бұрын

Good video

@whitesheatingairappliancer7101 7 жыл бұрын

nice video thank you.

@gtw9998 3 жыл бұрын

And keep up with the good videos very good and helpful

@donyboy73 3 жыл бұрын

Glad you like them!

@Rafcat555 2 жыл бұрын

Hello. Craftsman engine model 20M314 what torque on the crankshaft cover swamps?

@24681359David 4 жыл бұрын

An engine I'm tinkering with now has the ball bearing arrangement on it. I notice a tiny bit of play in the ball bearing so ideally I would like to replace it. Though I have no clue how to get it off. Any advice??

@danbeckley3140 9 ай бұрын

I have a question about a Kohler engine would it hurt the crankshaft if you cut the pulley side off

@arciefan 7 жыл бұрын

Hey Don, Great video. Exceptional step by step instruction and great camera work. Just wondering why since I don't see a single video on YT on reworking a head on a riding mower with briggs engine. I see them on the small engines where the valves are lapped but nothing on the riding mowers with the overhead valves. Just wondering if new springs, guides and valves and guides can be put in or would it require machinist work and make it more cost effective to order a new head. I'm sure that would be a huge cost though. Anyways would appreciate if you would comment or make a video on that. Thanks for your great channel !

@nsopceo 3 жыл бұрын

Do you remeber what the torque setting is for the flywheel nut? Thanks! Great video, very helpful!

@jefftorres1569 7 жыл бұрын

Ok. I have a Honda GX270 9hp small engine that has a short crankshaft. What can I do to extend the shaft please?

@matthewkral6151 6 жыл бұрын

HEY Donny I have a 11hp Tecumseh engine with a tapered crankshaft that I want to change to straight. Are there any engine that have a straight crank will fit? I have been looking online but can't find any.

@ngl-kd7tn 7 жыл бұрын

Cracking video.

@Oldcoinsandstuff1 4 жыл бұрын

How universal are engine parts from year to year? Where do you get your parts for older / newer engines?

@AlekseyCamodelkin 6 жыл бұрын

Some things I liked.

@grantw.whitwam9948 7 жыл бұрын

Great to know.

@jesuspatino4231 7 жыл бұрын

hi dony boy I have a problem with a sthil back pack when I try to starter the cord pull back very hard with a little explosion what I can do ?

@tonym6920 7 жыл бұрын

What size impact driver do you recommend for small engine work. There are so many of them out there it's really confusing. I know you require special sockets with an impact wrench. I would prefer something battery driven or electric rather than an air tool. My use is for my own equipment, no commercial work. So basically it would be used on lawnmowers, my riding mower and generator. Thanks Dony, appreciate your help!

@donyboy73 7 жыл бұрын

watch this video kzfaq.info/get/bejne/r9ZjhLibkrqrYHU.html

@carlosmeza570 7 жыл бұрын

Is there an adaptation to convert straight to taper shaft?

@gtw9998 3 жыл бұрын

What was the trok setting for the pull start side crank nut thanks

@kirbonite 5 жыл бұрын

I have a briggs push mower that sits way too high in the deck.. is there any way to lengthen the crankshaft ?

@georgeconcha1260 5 жыл бұрын

Hi donyboy do you know what the part number of the key on the crankshaft for the timing gear is its seem that no one knows

@zr24X4ROCKS 6 жыл бұрын

thank you.

@cosmintudor503 6 жыл бұрын

I have a 7hp horizontal taper shaft Briggs & Stratton engine and I'll like to swap its crankshaft with one with a keyway. I looked for parts but they are very expensive so I decided to look for another engine and to take the crankshaft from. The problem is that I can only find vertical shaft engines. So my question is: will that crankshaft fit if they're both Briggs & Stratton engines 7hp ?

@gahlyogu4570 5 жыл бұрын

I know your application didn't need the bearing but if you did need it, how do you remove the crankshaft bearing ?

@paulcoutu1893 7 жыл бұрын

dony have 18hp briggs opposed twin mower can run it for any amount of time bu t as you shut it off you cannot start till next day looses spark when hot tried 3 coils 2 key and flywheels isolated kill wire with no luck please any ideas its a single coil thanks