Casting Repairs

Kinja'd!!! "Jeremy Bloyd-Peshkin" (ulteriormotors)
09/16/2013 at 10:35 • Filed to: Pretengineering

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So the other day, my friend managed to rip apart the driveshaft in his Honda CR-V. The front universal joint was completely destroyed. We can replace the pivots and bearings just fine, but the yoke that mates to the transmission....

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Well, it was pretty destroyed. The bearing shells has slowly been working loose and eventually just ripped right out the side. Neither of us had any idea where to buy a spare, and it was late in the day on a Saturday anyway. So I went about repairing it.

Fortunately, it's a steel casting. That makes my life easy. I was able to weld over the entire thing until it was a big blob, and then machine it back down to the appropriate size and shape. Also fortunately for me, only one of the "ears" was totaled, so I was able to get dimension and alignment references from the other one.

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Should be all good to go now.


DISCUSSION (17)


Kinja'd!!! MonkeePuzzle > Jeremy Bloyd-Peshkin
09/16/2013 at 10:38

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woah, impressive. Cost of a new part would have been?

If you've seen my project, you'd know I'm not mocking, I'm all for rehabbing a broken part rather than buying. Just wondering what the effort vs cost of replacement is


Kinja'd!!! Jeremy Bloyd-Peshkin > MonkeePuzzle
09/16/2013 at 10:43

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The big problem wasn't so much cost (although we're broke), as that we didn't know where to get a replacement.

The effort wasn't all that much, as it was only a couple of hours (if that) of my time.


Kinja'd!!! Jeremy Bloyd-Peshkin > MonkeePuzzle
09/16/2013 at 10:45

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Thanks!

I have no idea what the cost of replacement is, as I'm not sure how to get one of these yokes short of buying a whole new driveshaft. And that is expensive.

It's not all that bad for me to do this. It's only a couple hours of my time, a fair amount of which was waiting for the metal to cool so it would stay annealed.


Kinja'd!!! MonkeePuzzle > Jeremy Bloyd-Peshkin
09/16/2013 at 10:58

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yeah, its probably not a part your local Pepboys has, or even likely the local Honda dealership, it'd for sure be a special order with days of waiting


Kinja'd!!! Jeremy Bloyd-Peshkin > MonkeePuzzle
09/16/2013 at 10:59

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Even beyond that, checking all the usual suspects online turned up nothing. It doesn't seem like anyone sells individual castings for driveshafts.


Kinja'd!!! wilsel > Jeremy Bloyd-Peshkin
09/16/2013 at 10:59

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Look you've mended it!


Kinja'd!!! Jeremy Bloyd-Peshkin > wilsel
09/16/2013 at 11:00

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I have mended something!!!!


Kinja'd!!! MonkeePuzzle > Jeremy Bloyd-Peshkin
09/16/2013 at 11:00

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probably would have had to be a junkyard part I suppose


Kinja'd!!! Jeremy Bloyd-Peshkin > MonkeePuzzle
09/16/2013 at 11:03

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Junkyard parts are the best parts!


Kinja'd!!! dinobot666 > Jeremy Bloyd-Peshkin
09/16/2013 at 11:09

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Honda doesn't sell components for the rear drive shaft of the CR-V, but they will sell you the entire assembly.

You may need to have the one you repaired balanced after you fix it. Good luck!


Kinja'd!!! Jeremy Bloyd-Peshkin > dinobot666
09/16/2013 at 11:14

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Statically, at least, it is balanced.


Kinja'd!!! MikeMeade > Jeremy Bloyd-Peshkin
09/16/2013 at 11:20

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I'm almost more impressed with how clean the fixed part is! That think looks like it has never been so shiny!


Kinja'd!!! Jeremy Bloyd-Peshkin > MikeMeade
09/16/2013 at 11:25

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Thanks! I gave it a quick sandblast before welding so that I wouldn't have any contamination or porosity. When it comes to drivetrain, I don't mess around.


Kinja'd!!! MikeMeade > Jeremy Bloyd-Peshkin
09/16/2013 at 11:26

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Yeah, the sandblast cabinet has been on my Christmas list for a couple of years. Seeing the night and day difference, I may just have to go out and get one.


Kinja'd!!! Jeremy Bloyd-Peshkin > MikeMeade
09/16/2013 at 11:32

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If you can afford a good one, go for it. Other than that, the harbor freight ones aren't that bad as long as you have a large air compressor. Actually, you'll need a large compressor regardless of what sandblaster you have.


Kinja'd!!! MikeMeade > Jeremy Bloyd-Peshkin
09/16/2013 at 11:45

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I've got a 5HP 30 gallon compressor just waiting on getting 220 power to the garage. Getting the sandblast cabinet might actually give me justification for having it!


Kinja'd!!! Jeremy Bloyd-Peshkin > MikeMeade
09/16/2013 at 11:46

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That'll do!