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> Rod Knock? HELP!
ranta18
post Aug 24 2004, 10:15 PM
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So here's the deal. I had Garner bring his block to Kalina to get bored and honed for the 20 over pistons. While he had it there I had them measure up the crank, rods, and main bore to check to see if it was all in spec. One of the rod journals on the crank was low so they said they would turn them all down and he would run 10 over bearings. I said cool and he got the set of 10 over bearings. Assembly time comes and I put the rod bearings in. I torque the rods down to only 10 ft-lbs and the crank won't turn. I loosen them all up and it spins like a dream. Come to find out I can only torque one of them down without it locking up. It happens that one was the one that was out of spec. So... I figure they just turned down the one instead of all 4. Garners goes and buys 3 sets of STD bearings and we put them in and torque everything to 38 ft-lbs. Crank spins awesome. After he had to get the valves fixed in the head (bought a crap head off in internet) we got it started. MAD ROD KNOCK! Drop the oil pan and the rods have play in them. I can move them with my had from front to back and make them make noise, hence the rod knock. I'm not talking sideways along the axis of the crank. Perpendicular to the crank. I take the rod caps off and the bearings are toast. We go get new bearings and some plastigauge. When I do that the plastigauge reads about .003" (it goes from .001" to .0015" to .002" and then .003", so its not too accurate). The factory clearance is .0008' to .002" WTF is going on? When Kalina measured the crank and rods they said they were all in spec except for that one journal. There shouldn't be any rod knock or that much clearance if this was true. Do you think they might have turned down the other 3 just a little and not the full amount to go 10 over? There is NO way for 10 over bearings to fit. There is only .003" clearance now with STD bearings and the 10 bearings would add .005". Some how there is a .0015" gap on each side. He got the bearings from AutoZone, but they are Clevite 77 which I thought was an ok brand. Anyone got any bright ideas? Me and him are SICK of this dam car....LOL!


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Posts in this topic
- ranta18   Rod Knock? HELP!   Aug 24 2004, 10:15 PM
- - awd4kicks   Oh I know that feeling... and it sucks pooper...   Aug 24 2004, 10:24 PM
- - ranta18   Yeah, I think pulling the crank is the next thing....   Aug 24 2004, 10:30 PM
- - KOU In3   I keep reading this thread in various forms every ...   Aug 25 2004, 06:40 AM
- - ranta18   Thats what I was hoping, but he said they were lik...   Aug 25 2004, 06:53 AM
- - awd4kicks   I've got a whole set of stock mitsu bearings.   Aug 25 2004, 08:33 AM
- - ncgalant   I've read this happening every time a mitsu cr...   Aug 25 2004, 09:29 AM
- - lawngsx   I don't understand why it would make any diffe...   Aug 25 2004, 09:41 AM
- - ncgalant   The way I always heard it was that the top .001 of...   Aug 25 2004, 09:59 AM
- - wortdog   Just a thought, but you might have warped the rods...   Aug 25 2004, 10:04 AM
- - natedogg   I see a couple of possiblities for the rod knock. ...   Aug 25 2004, 10:08 AM
- - ranta18   awd4kicks - How can Garner get ahold of you to get...   Aug 25 2004, 10:14 AM
- - wortdog   QUOTE (ncgalant @ Aug 25 2004, 03:59 PM)The w...   Aug 25 2004, 10:19 AM
- - wortdog   The more I think about it, you probably did warp t...   Aug 25 2004, 10:24 AM
- - ranta18   Wartdog, if that was the case, the bearings would ...   Aug 25 2004, 11:01 AM
- - wortdog   Yeah, nothing beats a good set of micrometers for ...   Aug 25 2004, 11:10 AM
- - eclipgst   Yeh i have come to believe that this car never wan...   Aug 25 2004, 01:30 PM
- - ranta18   Well I talked to Kalina and he had no answers. He...   Aug 25 2004, 04:11 PM
- - wortdog   Yeah, that's probably right. They are little ...   Aug 25 2004, 06:32 PM


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