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01-19-2017, 09:57 AM | #67 | |
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This is really only practical if you intend to R&R these bolts several times. |
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01-19-2017, 09:59 AM | #68 | |
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01-19-2017, 10:08 AM | #69 | |
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"[7] A log should be kept on the original non-torqued length of each bolt. Bolts that have any permanent deformation or have increased in non-torqued length by more than .001 in. should be replaced." This is typical for all of their rod bolts across every make and model, though their dimension specification may be different depending on application or material. Any bolt regardless of type, material, or application has the potential to stretch and be rendered ineffective. Their process identifies any stretch to monitor the hardware's effectiveness. |
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01-19-2017, 10:47 AM | #70 | |
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What they are saying is that if any plastic deformation happens, throw the bolt away. So, the bolts are designed to function exclusively in the elastic zone. I would like their thoughts on whether they will ever deform plastically using 50ftlb for tightening torque |
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01-19-2017, 10:59 AM | #71 |
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More great info, thanks guys.
So judging by that spec from arp (assuming it is correct for s65 rb bolts). Then that means it is still useful to have that tool to measure arp bolts that are being reused to make sure they haven't deformed. I was thinking about it the wrong way and that he wanted to measure the bolts to ensure they stretched the correct amount. Likely I doubt many would buy a $200 tool if DIY'ing the bearings for the first time, just to measure the before, but it's still good to know.
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01-19-2017, 11:25 AM | #72 | |
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IMO, *flame suit on*, the whole topic of over-stretching ARP bolts for this DIY application is academic. I don't see evidence of anyone ever cycling a single set of ARP bolts enough to warrant monitoring stretch, much less replacement. For all intents and purposes, I file their recommendation to monitor stretch under their CYA department. |
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01-19-2017, 11:26 AM | #73 | |
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01-19-2017, 11:30 AM | #74 | |
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01-28-2017, 06:58 PM | #75 |
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Is it necessary to buy new bolts for the oil pan or can you reuse the old bolts?
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01-29-2017, 09:45 AM | #77 |
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I reused also and have a set of new if anyone wants to buy them as backups.
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01-29-2017, 08:17 PM | #78 |
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both cars I've done so far had oil pan bolts that looked brand spanking new. I also have a set of new ones but I did not use them
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01-29-2017, 08:27 PM | #79 |
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PM price please. I'm on the edge about buying or reusing. I'm a bit OCD.
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01-29-2017, 08:32 PM | #80 |
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I reused on the three I did. However, I had a couple spares of each in case I buggered the torx heads up while taking them out with my electric ratchet wrenches. No issues.
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01-29-2017, 09:05 PM | #81 |
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I'll look up what I paid and PM you in the morning. A bit OCD here also and I still didn't reuse them but always good to have backups on hand. I have the oil pickup gaskets also, reused them as well. Happy to give a fair price and then you can re-sell if you don't use them.
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01-29-2017, 09:12 PM | #82 | |
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02-15-2017, 09:23 AM | #83 |
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I will probbably do this job on my E92 this weekend, I've done it on an E39 before however I removed the entire from subframe.
How is access with the Subframe hanging? I am going to use new OEM bolts which require tightening using an angle gauge. Is it possible to use that? |
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02-15-2017, 09:29 AM | #84 | |
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With the subframe hanging you have pretty good access. It wasn't a deal breaker, especially with the BE bolts. Once the oil pan is out of the way you have almost perfect access. I wouldn't use OEM bolts because of the tightening procedure, however, I used OEM bolts on my E46M with the hanging subframe method and it was a PITA. Just remember to rehearse the movement you are trying to accomplish before actually tightening. The reason I went with OEM bolts for my E46M is that there were rumors it bent the cap out of round. Those were finally confirmed with both the E46 and E9X, so I went with BE-ARP the second time around because the OEM bolts are a PITA to tighten |
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02-15-2017, 09:38 AM | #85 |
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I learned the hard way. Just drop the subframe if you're using OE bolts.
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02-15-2017, 09:38 AM | #86 | |
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02-15-2017, 06:54 PM | #88 |
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Both regular arp and the be'arp bolts are straight torqued to a value. This is a huge improvement and reduced not only time but chance for error
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