Subject	No way in hell that was crank walk >>>
Posted by	AshsZ (FabZEM All) on May 24, 2003 at 11:06 PM
	This message has been viewed 116 times.
In Reply To	Crank walk. Probly a bad thrust bearing. (n/m) posted by Good2Zya on May 24, 2003 at 12:03 AM
Message	If it were, it would have destroyed the rod bearings first as the crank moves forward and backward, it tries to 'bend' the rod along the axis perpendicular to the length of the crank. This will make the rods bearings 'bind' on the crank pin and it wont last long at all. It looks more to me like oil starvation than anything else, but why it wouldn't have killed the rod bearings too is beyond me. One thing that may be responsible for this is whether the crank had ever been machined before. It could have been ground/polished in the wrong direction to crank rotation and this will eat bearings alive. Also, if it was not accurately ground, those main journals aren't to the centerline of the crank and as the crank turns, it 'wobbles' at the journal. This explanation makes a lot more sense than anything else to me with all things considered. [ ashleypowers.com ] [ agpowers@bellsouth.net ] [ Zemulator Information Sheet ] Enthusiasts soon understand each other. --W. Irving. Are you an enthusiast?
Follow Ups	HKS GT 2835 Dyno Results!! - B-Ster 21:15:53 05/23/03 fully tuned that should be rediculous - Chris(NJ) 21:22:44 05/23/03 Not Bad, Hate to hear it about the motor. - Chip(GinnMotorsports) 21:22:46 05/23/03 Most important question, did you have fun? ;-) - AshsZ (FabZEM All) 21:29:41 05/23/03 Expensive trip, but yeah, it was fun. (n/m) - B-Ster 21:33:30 05/23/03 I hear ya. We spent $1500 in one day of dyno time (13hours) - AshsZ (FabZEM All) 21:43:02 05/23/03 Who do you have scheduled in AZ? Or you just jive - MikeH(Twin GT35BB Incon Z) 21:52:36 05/23/03 You mean you didn't slip the "Good Ole Boys" a - MikeH(Twin GT35BB Incon Z) 21:54:44 05/23/03 I thought you were my friend. - AshsZ (FabZEM All) 22:30:24 05/23/03 What your theory on my bearing situation with - MikeH(Twin GT35BB Incon Z) 22:33:54 05/23/03 Main bearings were worked? That's a new one for me, - AshsZ (FabZEM All) 22:48:01 05/23/03 Yea, take a look at my mains. The rod bearings were flawless - MikeH(Twin GT35BB Incon Z) 22:55:09 05/23/03 Crank walk. Probly a bad thrust bearing. (n/m) - Good2Zya 00:03:24 05/24/03 I thought the VG30 engine was not prone to crank walk (n/m) - MikeH(Twin GT35BB Incon Z) 00:16:17 05/24/03 If the thrust bearing was bad it will walk to Dallas (n/m) - Good2Zya 00:25:55 05/24/03 Check you email (n/m) - Good2Zya 00:48:38 05/24/03 No way in hell that was crank walk >>> - AshsZ (FabZEM All) 23:06:13 05/24/03 You know I'm just joshing with you :) (n/m) - MikeH(Twin GT35BB Incon Z) 22:37:19 05/23/03 I would certainly book some time with you if you came to - B-Ster 22:04:01 05/23/03 I'm kicking the idea around. There's enough people who - AshsZ (FabZEM All) 22:21:40 05/23/03 i bet you have a lot of fun trashing Z after Z (n/m) - Halo Z 09:06:06 05/24/03 Don't be an idiot. - B-Ster 10:45:20 05/24/03 Well put !!! (n/m) - VECTOR 21:37:51 05/24/03 Congrats. Oh shit the dreaded rod knock I wonder - MikeH(Twin GT35BB Incon Z) 21:30:36 05/23/03 shooting for 800? - genic 21:31:27 05/23/03 What is your question? (n/m) - B-Ster 21:34:41 05/23/03 well, you wont be running around @ 800 all the time right? (n/m) - genic 21:40:58 05/23/03 You sound concerned, plan on racing him? (n/m) - MikeH(Twin GT35BB Incon Z) 21:55:19 05/23/03 No doubt. Anything over 600 rwhp is a traction issue.> - B-Ster 22:05:08 05/23/03 One more item of interest! - B-Ster 21:32:55 05/23/03 How do you have your wastegates vacuum lines installed? - MikeH(Twin GT35BB Incon Z) 21:36:56 05/23/03 hhhmmmm..... - B-Ster 22:08:53 05/23/03 It's going to be a beast. But sorry to hear about the bad. (n/m) - John@Z1 21:37:17 05/23/03 If your number 6 rod bearing is the culprit then - MikeH(Twin GT35BB Incon Z) 21:40:58 05/23/03 Get rid of the oil squirters will increase oil pressure - Chip(GinnMotorsports) 21:44:24 05/23/03 What does forged pistons have to do with oil - MikeH(Twin GT35BB Incon Z) 21:48:11 05/23/03 Forged pistons can handle the heat without squirters - Chip(GinnMotorsports) 22:20:33 05/23/03 While this is true, they also expand much more as they - AshsZ (FabZEM All) 22:27:31 05/23/03 Oil pressure isn't what makes bearings last though Chip>> - AshsZ (FabZEM All) 22:13:19 05/23/03 More oil pressure helps. I have consulted with a few race - Chip(GinnMotorsports) 22:18:44 05/23/03 I agree with that too. Comparing the benefit of the few - AshsZ (FabZEM All) 22:25:07 05/23/03 That brings up a new topic>> - Chip(GinnMotorsports) 22:31:46 05/23/03 I would agree with that too. As loads increase the parts - AshsZ (FabZEM All) 22:44:12 05/23/03 That works for fine normal hp but under load of - MikeH(Twin GT35BB Incon Z) 22:23:25 05/23/03 Definately. More oil = good! The thing that interests - AshsZ (FabZEM All) 22:40:28 05/23/03 Pressure and flow are inversely related. You might be - MikeH(Twin GT35BB Incon Z) 22:36:11 05/23/03 We need an oil pump dyno. :) (n/m) - AshsZ (FabZEM All) 22:45:19 05/23/03 What type of oil pressure an pump do the Nascar guys - MikeH(Twin GT35BB Incon Z) 22:59:58 05/23/03 They use a dry sump system which allows them to run high - MugenRacer 00:32:41 05/24/03 Hmm. Interesting topic.. >>> - AshsZ (FabZEM All) 22:07:53 05/23/03 10W/30 oil. Still fossil based. I will be curious as to - B-Ster 22:10:13 05/23/03 Re: HKS GT 2835 Dyno Results!! - ZHOUND 22:29:15 05/23/03 Bryan if I may suggest - Good2Zya 22:42:20 05/23/03 Excellent suggestion Fred; I thank you for it!! (n/m) - B-Ster 22:53:04 05/23/03 Do you hear it at idle or all rpms? I only heard - MikeH(Twin GT35BB Incon Z) 22:57:26 05/23/03 A bad rod bearing, one that is just starting to go out, - Good2Zya 23:07:33 05/23/03 Yep, you hear it rattle just as the bump the car above idle. (n/m) - B-Ster 08:51:07 05/24/03 One more thing - Good2Zya 22:57:20 05/23/03 Damn!!! - TwinTurboPete 23:29:41 05/23/03 Congrats! Good luck with everything. - Spee 23:57:48 05/23/03 I'll like to see the conzult logs....curious on MAF - Christopher 02:17:54 05/24/03 Injector duty cycle on the last run was 59%. MAF hit >> - B-Ster 08:55:36 05/24/03 Are you sure about MAF, i thought it was 5v max - Christopher 14:18:13 05/24/03 Kuah was who gave me the MAF voltage maximum; I have - Bryan (AKA B-Ster) 21:46:25 05/24/03 The fuel temp would be in the ConZult logs - Christopher 00:16:58 05/25/03 Re: The fuel temp would be in the ConZult logs - Christopher 00:55:01 05/25/03 We actually peaked at 3.9 volts, not 4.9 volts. My memory - Bryan (AKA B-Ster) 12:17:52 05/25/03 Sweet...pulling lots of air.... (n/m) - Christopher 13:53:09 05/25/03 Bryan does not have a fuel temp sensor. - Chip(GinnMotorsports) 17:29:52 05/25/03 That is the dyno of this year and last year I was looking >> - George(boost-solutions.com) 08:52:28 05/24/03 Pentroof ran 21 degrees of timing on there TD 06 car >> - B-Ster 08:59:09 05/24/03 Give me a call later today, like 2 pm. (n/m) - George(boost-solutions.com) 09:29:21 05/24/03 I hope that it is only a lifter like Fred said. - ZRO 21:28:05 05/24/03 Thanks Rohan. We will check on the lifter issue, but - Bryan (AKA B-Ster) 21:47:49 05/24/03 I forgot to mention EGT guage readings!!>> - B-Ster 09:54:22 05/24/03
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