Thread: Rod Knock

Here's my story, sad but true.....

Anyway, I've been working on this damn car since day 1 and after limping home, I tear into the block and replace the rod bearings. Check out the #4 bearings.





The ones next to it are from #2 which was also knocking. They weren't so bad, but still, I'm amazed at what this engine chewed up on me. I reassemble, start it up, and hear this:



Oddly enough, it's #2 again. #4 is doing just fine. I figured if anything, the condition of the crank surface on #4 was the only bad one, 1-3 were fine. Guess my rod disagrees. The crank is, imho, officially toast.

So, for anyone out there who thinks you can push rod knock for a few hundred more miles or so, yeah maybe, but don't expect her to run right ever again.

Sorry to hear man, that car has been nothing but trouble

time for a motor swap

You didn't get the crank checked before re-assembly?

Wingman,

I've got a crank sitting on a shelf... 8CW out of a 1998 Lowport DE. Journals look minty fresh. LMK if you're interested. I can get the clearance #'s off the crank...

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my first signs of rod knock started and the motor had a hole through the front and the rear of the block after 20 miles.

Sorry to hear this man, that was an awful sound

@Tekkie, when are you coming to help me put my motor together?

Should be PCS'ing between the end of August and beginning of November, now. Once I have orders in hand, you guys will know. Need to buy a house first

when i had my GA16 my number 2 bearing when out. I bought some emery cloth stp oil a brand new bearing set .. i diped the clothes in the cloth and just lightly smothed down the crank a lil and put the new bearings in. worked for a year in a half till the engine started to eat oil after a 9 hour trip to GA and a ( hour trip right back the next day back home...

tried to do a fix again with just changing the bearing that was mest up and it lasted 2 minutes before it chewd it up.. hence how i got into the sr20 game lol

My question that I won't really know until I tear it apart is, what's hitting what? It almost sounds like it's hitting the head, which makes me concerned for the nice Eagle rods I put in there...

Either way, that crank is beyond toast. Might even go on the Wall of Shame when I get it out.