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| Flywheel bolt replacement part | Rate Topic |
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| Posted: 08-29-2021 10:17 pm |
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1st Post |
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jomac Member
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Can anyone tell me the size of the flywheel attaching bolts, I am looking a replacement part number I can buy a auto supply store in usa, like ARP , mr gasket or spectre. I believe they are 7 /16-20 × .90, but not sure, I am having my clutch replaced a would like to supply them with the correct part. Thanks
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| Posted: 08-30-2021 03:18 pm |
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2nd Post |
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Esprit2 Member
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The correct bolts are not made to industry standards. Any standard bolt you buy, even if it's made by ARP, etc, will not be correct. Suck up and buy the correct bolts from a Jensen-Healey or Lotus parts specialist... even if you need to buy online. J-H = 93507 Lotus A907E6020ZK Regards, Tim Engel Last edited on 08-30-2021 03:26 pm by Esprit2 |
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| Posted: 08-30-2021 10:45 pm |
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3rd Post |
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redracer Member
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Have got plenty of good used ones if needed. bruce
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| Posted: 04-17-2024 04:42 pm |
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4th Post |
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JH12947 Member
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Looking for some clarification on this topic. I removed my flywheel and although the bolts are in good condition I generally like to use new bolts when reinstalling. I ordered the ARP bolts from Martin Robey that are listed for this application (same as BMC A-series as it turns out). Why would Martin Robey list and sell parts that are not correct? They don't even list an alternative under the JH part number.
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| Posted: 04-17-2024 04:49 pm |
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5th Post |
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redracer Member
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Maybe call ARP directly and ask them? Having done 100s of clutch and flywheel resurfacing(in order to change the rear main seal at the same time), I've always reused the flywheel bolts with absolutely no problems whatsoever. Just be sure to use sealer(I use Permatex #2) on all the 6 bolts as they are open to the return oil behind the seal. Also, pay VERY close attention to reinstalling the seal housing as the oil slinger can very easily get rotated and cause one of the "fingers" to get sandwiched between the housing and block face.
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| Posted: 04-17-2024 04:56 pm |
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6th Post |
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JH12947 Member
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Attaching a response from ARP found on a Lotus Forum in case anyone searches this topic again. Interesting what they say about the torque spec. Attachment: ARP Flywheel Instructions.jpg (Downloaded 18 times)
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| Posted: 04-17-2024 08:57 pm |
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7th Post |
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redracer Member
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Again, I'm not sure how just oil would stop the return oil behind the seal housing would not seep through the threads on the bolts?
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| Posted: 04-17-2024 09:26 pm |
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8th Post |
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JH12947 Member
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I took this to mean using regular oil as the head lubricant rather than the supplied ARP Ultra Torque. Not sure why anyone would do that since it comes with the bolts. In any case, I used thread sealant on the bolts.
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