Tricks To Cleaning Dirt Bike Engine Cases

★Pryme www.prymemx.com
★CR250 Parts List www.prymemx.com/pages/cr250parts
★Tools I Used on CR250 www.prymemx.com/pages/tools
★Supplies Used In Video
Cleaning Wheels www.prymemx.com/collections/c...
Propane Torch amzn.to/2HoA6Ve
Impact Screwdriver cjn.mx/impactscrewdriver
Blind Bearing Puller cjn.mx/bearingpuller
Dewalt Impact Driver: amzn.to/2wDxAEz
Dremel Tool amzn.to/2Gpp0uG
Dremel Wire Attachments amzn.to/2HqkBw3
Scotch Brite Attachments amzn.to/2GEkcVt
Buffing Motor cjn.mx/baldor
Sanding Handle amzn.to/2pAAIMv
320 Grit Sandpaper amzn.to/2HUZaQB
Rubber Gloves www.prymemx.com/products/rubb...
We're nearing the start of the CR250 engine build so I thought I'd share some tricks to cleaning dirt bike engine cases!
-Cameron
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[@CameronNiemela]

Bout time to put this engine together?

[@XxMrBishopxX]

Can't wait!

[@regardtdressel5958]

Cameron Niemela you are awesome

[@Aut251]

Cameron Niemela The 250 will be better then it left the factory.

[@josephwilliams2650]

Dont forget to replace your clutch actuator arm bearings in the left side crankcase. I dont think the wrench rabbit kit includes them. At least they didnt when i bought mine for my 98 250. Cant wait to see the build complete.

[@stevenwilliams5282]

Yeah it’s time to get my head re built on my 02 crf 450.

[@pauloconnor7951]

Cameron is probably the tidiest , cleanest , most professional mechanic I know of. We could all learn from Cameron and raise our standards !.

[@coloradodirtbike5930]

simply amazing. takes a lot of patience and dedication for making those parts that clean

[@SmittyGuitar]

Nice job cam, love the patience and detail. I love doing all this myself and your vids help me skip the trial and error drama. I'll be picking some stuff up at your store.

[@soderholm3805]

cameron never stop doing what you are doing, youre a huge inspiration to me and your vids are both entertaining and extremely teaching. wish i had such a good garage as you.

[@mamatarathod2504]

soderholm hi

[@phillthomas3359]

Great to see the cr250 build back on track...keep up the good work fella

[@justinyates3095]

The dirt bike chrisfix!

[@Florisyzf250]

Oke when i saw this reaction i knew it was the best vid😂

[@CrazyFastFlying]

Exactly!

[@CBCycles]

This is such a great video, so helpful in so many ways, thank you Cameron! Safety tip - those cases have razor sharp edges. I clipped an artery on my finger once while cleaning one, and now use mechanics gloves whenever working around them, especially with a high speed machine.

[@BP_306_]

Started to really get into building bikes for the last year or 2 you’ve basically been my guide though it all lol great videos man 🤟🏻

[@marcmcvay4573]

I ordered my first polishing wheel and let me say this is the BEST thing I have ever used to polish my aluminum parts . It takes years of tarnish and corrosion off in seconds leaving a like new luster . I also purchased the buffing wheel for a drill to reach hard parts and it works fantastic ! I highly recommend the products and very quick order processing I received on my purchase .

[@CameronNiemela]

Thanks Marc! Happy to hear they're working well for you. Happy polishing!

[@stephenmcwilliams6196]

cant wait to see this finished!

[@dylangale5577]

Mate I love your content it’s always exciting to watch someone who’s patient with there work im keen to see this cr250 being put back together

[@officialGFguitars]

Dude... U really had the patience to polish all that... Oh my god! I thought u were simply Going to clean and sandblast. Amazing

[@fallbangskid5037]

It's nice when a job is completed to perfection!

[@Daniello84]

Yo Cameron, I love your videos. Watched a bunch of them, all are nicely put together and informative. Right now I'm fully rebuilding a CR250 '00 engine, which I also going to be using your tips to get the crankcase halves looking this good. Thnx for sharing.

[@krispewkrem3]

Such high quality and educational stuff here! I figured I needed special tools that were unobtainable. But I have most of these tools and am confident I could rebuild my 2 stroke if I needed to.

[@ftball90]

Of course another great video! Impact screwdriver is worth its weight in gold! I use mine ALL the time!

[@NZMantaGSi]

Those impact driver screwdrivers are absolutely invaluable!

[@Aarongoscinski]

For real, best money I’ve ever spent

[@dinozografakis]

Facts i can't belive i didn't know these existed before

[@anthonyk9534]

Love Your Videos Cameron! Your Living The Life!

[@diegoadg7443]

hey cameron gracias por ser un maestro de la mecanica y dejarnos ese legado un saludo desde colombia

[@QCDARKTEAM]

Very good video man helps me a lot on my bike builds!

[@Justin-mo6uv]

Nice video...now that looks better than new..

[@spraylondon]

Thanks for this, really helped!

[@mxrevival]

Another solid vid from The Man.

[@74willy81]

Great video, Thanks! Not sure if this has been mentioned already but when you run into what appears to be Phillips screws on a Japanese product don't use a Phillips screwdriver because they are not Phillips. They are in fact JIS screws (Japanese Industrial Standard) They have a different form to them than Phillips. While Phillips are designed to cam out JIS is not, but use a Phillips driver on a JIS screw and they they will bugger up the screw. Best way to ID a JIS screw is to look for a dot on the screw head. Although JIS screwdrivers are hard to find the impact drivers usually save the day. Hope this helps those who wonder why Japanese screws always get trashed when removing them with a known good Phillips driver.

[@governator45]

A cheapo trick to get by is to buy a harbor freight #2 phillips and grind the tip back a bit. It allows for more contact on the screw. Then buy some JIS drivers.

[@cancele1]

shut up stupid.

[@volvogt21]

Thanks for sharing. I did not know this

[@dwightschrute3862]

freddie cancel dude, chill out

[@dwightschrute3862]

Aren’t JIS more square instead of a diamond in the middle of a plus? That is the best way I could think to describe it without a picture

[@landlockedviking]

Awesome work! Great vid

[@diego.brandariz]

Insane finish!

[@ztaar6375]

Insane looking Cameron, great job.

[@justindemelo351]

This soothes my soul...

[@matthias587]

this is high quality content

[@tu-mother]

The method i usually use to get a “perfectly” flat surface on gasket surfaces is to buy a sheet of fine grit usually 400-600. Wet it with wd-40 as opposed to soapy water and secure the sandpaper to the flattest surface you can find(the real reason i bought the wife a granite countertop)

[@reedmccleve21]

Awesome job! They look great!

[@cuerammer]

I'm completely restoring my '03 KTM450EXC soon, and will be using your engine cleaning techniques, but I'll be going one step further. So that I don't have to do all that polishing a 2nd, or even 3rd time, I'll be cleaning all my polished areas with acetone, then coating it all with a High Temp "Clear" ceramic coat, baked twice to cure, so my bike comes back to looking brand new after every wash!

[@NebukedNezzer]

when I bought my honda cb450 in 1966 one of the things I also bought was a impact screw remover. Well worth having.

[@thomasmcbain8065]

This bike is going to look amazing

[@RussTnut]

Great attention to detail Cameron, I have seen similar results just with vapour blasting with wet soda in a cleaning cabinet like you already have. Maybe worth investing in this kit???? A bearing press is useful too. 👍🏻

[@crf250r985]

AMAZING video very helpful, thank you!

[@David-rv9kj]

Quality content.

[@aaronbrunelle6604]

Thank you for the video, crank case looks good!

[@sorakojootti2725]

Dude, you are so inspiring to me. This is exactly the kind of stuff i also wanna do. Ps. I want your workshop xd

[@weekendwarriortv3950]

Great videos looks brand new

[@YzBlue777]

bro this is gold🤯

[@frankcaccamo3568]

Seriously inspired me to clean my engine.

[@ezziddeanjamal_7310]

You did a great work.

[@dannyaustin84]

Quality tools and method! I like it

[@JS-wo1ol]

That brass shine actually looked kinda dope imo!

[@nacman2010]

Nice!! Its my inspiration, in my restoryn xr400 2000

[@AcAce427]

Awesome vid! Thank You!

[@TravisMontesano]

Thank you for information. Rebuilding a grizzly 700 engine and it's filthy!

[@4nydrrsdanny846]

Awesome! 👌🏼

[@bryantatkeson6379]

Thanks so much this will really help me

[@edsaelcardenas2395]

You are a great guy Cameron I like how you Work I would like you to give me mechanical classes succes 👍👍

[@DethStrike121]

Love this content

[@daviddeleon5551]

The 250 is gonna look sick!

[@TheNoisePolluter]

Even though I work on smaller engines, such as Zenoah's I've got a spare toaster oven that I can heat aluminum parts up in evenly to about 130-150F and then just freeze the bearing and the leiden frost effect will let them drop right in and will burn off quickly.

[@Phobu]

Love your videos been following you for a long time, you should build yourself a vaporblaster, once you have one you can't live without it ! Saves so much time

[@michaelwooding5407]

For difficult to reach areas buy a length of bowden cable, cut into 3 inch pieces and tape together. 7 is a good number to retain flexibility while allowing pressure to be applied. I also always finish off with 400 grit wet and dry whenever using steel wire on ali otherwise the finish is just a series of scratches.

[@killingitoutdoorstv423]

Can you make a all in one video on how to rebuild a whole bike and tearing it down

[@Vini-rm2ss]

Salut Cameron ! Excellente vidéo ! Très bon job !!! Polie toute l admission, ce sera mieux ! Très bonne journée ! 👏👍👌😉😁💨💨💨💨😎

[@thegooseisonthelooseuk9633]

i really find your channel helpfull thanks

[@theundisputedirontykemison4089]

This one got you a new sub. Thank you!

[@harrybenx3554]

excellent job...well done!

[@benny8992]

Awesome video! Love to watch ur vids

[@pilotsalmanalkhaldi5649]

Very nice video thanks فيديو جميل جداً شكرا

[@jimrowe4177]

I really like the scotch brite wheel is awesome. Not overly aggressive. Wrap it up with some Aurosol on either regular bench buffer or dremel buffer pad and it will end up amazing.

[@MichaelJohnson-xu7oq]

Hey dude!!! I dont comment very often but I had to let you know how much i love your videos and your work!!! I really cant wait to see what your plans are for this bike! Those cases are getting me jealous 😂 I wish i could do what you do 😊 Youre my model when it comes time to work on my bike. Thanks alot for the vids you are my favourite youtuber hands down 😉 Wish i had the money to get some Pryme products and help you out with the build ! PS Love the more often vid release but dont forget to take your time 😊 Peace ! ✌

[@CameronNiemela]

Thanks man!

[@jothain]

Neat trick for those blind hole bearings. Put heavy grease inside them, stuff paper in axle hole and hammer that paper, remove it, put more grease and repeat . You will create quite surprising amount of hydraulic pressure and you can remove bearing without blind hole puller tool. I've used this multiple times and I know it sounds incredible to many, but this really works when done properly.

[@lesfox2010]

It was the way (don't know if they still do) mechanics used to remove pilot bearings from flywheels/cranks. Get a solid bar that fits snugly in the hole, fill the hole with grease and tap the shaft in. Bearing is forced out.

[@filthywetbeard5351]

I've seen people use bread to do the same haha

[@claudioarce3999]

Holaaaa! Excelente trabajo, me voy a tomar un tiempo para deja mi motor así. Saludos!

[@bushmonster9899]

tbh the brass color looked pretty dope

[@OriginalAuttin]

Can’t wait till he next engine build video comes out in building an engine right now based on them

[@billmcmahon3801]

Great video very helpful thanks bro

[@felixmx3534]

Its like an asmr Video for Maschine freaks 😂😂🤙hold on buddy 🤙

[@nathanielarnold3294]

I wish I had your job get work on dirt bikes and ride dirt bikes all day everyday

[@frankcaccamo3568]

Enjoyed this immensely. Very good explanation I learnt a hell of a lot. 🍺🍺🇦🇺🇦🇺

[@Beserker650]

Cameron, thank you for putting quality content together in a way that also motivates me to get off my arse and do it!!

[@jonathanalvarezbrana9939]

👏👏👏perfection bro

[@MrFathead]

I am about to split my engine this weekend. But I think I am going to paint the cases and polish only the side covers.

[@jacko420oioi]

Nice job keep up the good work

[@roberttownsend3821]

I hope to see you at Thunder Valley Saturday June 2nd great video

[@DannyZ011]

Popping the bearings out would've been easier with a hydraulic press but you gotta work with what you got... great vids I enjoy watching them... I learn a lot despite being a mechanic by trade

[@adstaydarksgtslaughter]

Good info...ty

[@stevenmays1419]

This guy would be a good guy to live beside of

[@muhammadhaiqal3187]

inspiration

[@enmerdeur]

Great video. A trick I have always used for blind bearings is put the entire case in the oven. Let it get nice and heated then take it out and slam it down on a piece of plywood. They will fall right out.

[@michaelpresey2273]

I kinda liked the brass look on the case

[@mattmcdonough707]

When I did the case on my YZ 250 I popped the cases in the oven at 200 for about 2 hours and everything fell right out . I did the same thing when I installed the new bearing , but I put all the bearings in the freezer the day before and they dropped right in with no issues

[@MIKE_YATES]

Good video

[@PhilippinesLife101]

Also for that extra nice finish use some metal polish and some cotton buffing pads on the outside of the case but tape off the inside you don't want that stuff on the inside. Can also clear it for longer lasting and protection and easier cleaning.

[@jasonyz2504]

Damn them look good.

[@markssmallengines3542]

Your work is awesome. This cr250 will shit all over hondas factory build haha I'm keen to see what you do with the topend, Oversizing? Porting? Port matching? Reed valves an cage? Carb? Endless possibilities mate keep it up love your vids, take care Mark.

[@TeaIP]

Goodjob👍

[@Wooley689]

Those cases came out great didn't they. The brass wire while softer to use on aluminum, it does however transfer in to the pours of the aluminum leaving a goldish color. The goldish color is fine if that is the look you're after. I had the same thing happen before. Next use some Blue magic to further polish and help seal the cases.

[@Thundercat68]

. I’ve used an impact screwdriver for years. Work great! Another awesome video

[@alexanderthegreat3674]

I need one of those

[@evangriffith8836]

For all those who don’t have a blind bearing puller, find a flat end punch close to the inner diameter of the bearing. Take single ply toilet paper and wet it keep packing and hammering in. Bearing pops right out

[@McChadsworth]

It might sound weird, but bread works for that, too.

[@thatdesertmoto4923]

Hahaha u should do my bike next, jk man but awesome vid as always!

[@jawaworld4329]

NICE VIDEO LIKE !!!!!

[@n00blike]

Great finish, how are you going to protect the polished look?

[@shokrefumi]

One thing you should mention is that the screws retaining the bearings are JIS head screws and are super easily rounded out if not using the appropriate bit. Otherwise, keep up the good work, like your videos!

[@carlredmond3642]

The JIS screw is signified by a single dot which can be seen in the video

[@benpatt432]

Ever thought about getting a vapour honer?