How to Remove Main Bearings Without Removing the Crankshaft - Cool Trick Using a Cotter Pin!
Vložit
- čas přidán 7. 09. 2024
- This is a trick many experienced mechanics already know. Expertly executed by my friend, a master technician. Thank you Steve for this great tutorial to share out.
(Installation is the reverse of removal)
I have used this method many times and I am glad someone has shown others this technique.
How do you install them
@@nhoegil7070 you can often push them most of the way back around, but you use the pin to push it if it won't slip all the way in by hand
Very cool!
I watched three videos showing this method, but couldn't figure out the trick. Had to see the other side of the rod for it to make sense. Thank you, sir.
Glad it helped!
I've done this at the track more than once. Great trick to have up your sleeve
It sure is!
Thanks for sharing this technique.
I was able to roll out successful my main bearing shells in my Elantra and replace full set shell and crankshaft Thrust washers.
No driving the car again.👍💯
That is pretty slick. I used to use a thick feeler gauge to push them out.
Thank you sir ! This is some wizardry for sure !
NOICE. Nothin like some old school work.
Saved me time and money ,thanks .
I at first thought that it is the other side of the pin that rotates the bearing out, but it is really the head of the pin/screw etc that pushes the bearing out.ANOTHER THING IS.... SHOULDNT ALL THE MAIN CAPS BE LOOSENED TO MAKE IT EASIER FOR THE BEARINGS TO BE PUSHED OUT?
now if we could see someone seating the new half as well we´ll really be amazed!
It is usually easier to get the new bearing in, you can tap it with a plastic drift.
I assume you could use the same trick in reverse to install.
I am surprised no one has invented a tool to be able to do this.
If I am changing the main bearings its after the block is serviced at the machine shop.
I been wanting to do mine on my 93 S10. Note I have hade my lower engines before
May not work on located thrust bearings or integrated thrust/main bearings
You did it with the engine out easy
Having the engine out was the perfect opportunity to make a video of the process. I hope it helped. Yeah it would be uncomfortable doing it under a car on jack stands.
@@havenocatthanks for the video. What about the thrust bearings?
I understand how you change the bearings in the middle, but how do you change the front and back bearings?
Same process.
OK Now you took it out is there a video of you putting out the new one back in?
Good point!
The master wanted you to stay hung up in the air😅
Same process, but spin in reverse
I Think this method will work on my jeep to
I hope😵💫
So if my crankshaft bearings are bad, and I have this done will that fix the problem instead of replacing the engine?
Depends. You need to use a micrometer and measure the crank to see if it is worn and needs to be reground or if it is oblong and needs to be ground. If not, you could but the same size new bearings in and hope for the best. But you've made it far enough you might as well mic the crank
Thank you so much
This works great, the mains came out and new ones back in easy. With the exception of the main thrust bearing (center most). I cannot get the upper half of main thrust bearing to go back in. I've checked clearances on the sides and they are ok. (looking for any points that might be causing an interference fit). I went so far as to cut a short piece out of the old main to insure alignment (I tapped this in with a brass punch), then placed the upper thrust bearing on the crank as described in the video. When I rotate the crank, the cotter pin tries to ride underneath the main thrust bearing upper half. Frustrating...
Continuing to try this over and over is the defn of insanity. Has any one done this successfully? I realize this is a very tight fit. I tried loosening the other main caps to see if I could get more clearance.
why dont you just remove the crankshaft? is the engine in the bay while you are trying this approach?
@@fireyourrocketts yes the engine is in the vehicle. Job is complete and runs great.
Love it!
How do u get the new ones back in tho?
Put them on top rotate them around until there flush. You have the benefit of clear access when your putting them back in which you don't when removing them.
Does this process also work for the bearings on the very end
Yes
What's the point of removing the main bearing without removing the crankshaft if you can't measure the main bearing journal?
I feel that. I'm rebuilding my tractor engine and the more I mic things the more crap I'm replacing. Might be in tolerance, but barely. It's getting replaced. If you are doing all the hardwork you might as well do the easy work while you are there.
Slick!
Kenapa tidak mahu melepas chranksharf?
👍👍
And to install them?
Reverse of removal. You can put it in by hand most of the way or sometimes all the way. Use the pin to rotate it into place if needed
Thanks Nate
Nice … what a time saver this is
There's next to nothing a cotter pin can't do. From personal hygiene to bookmark, the most useful scrap of nothing ever to have been invented.
Nothing special pretty standard stuff.