09-18-2018, 05:25 PM | #67 |
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Clearly you're not familiar with the Yankee creed:
1. Use it up, wear it out, make it do, or do without. 2. If it ain't broken don't fix it. At any rate NKG says 80k to 100k miles with a stock engine, so 60k miles is very conservative. I'd also change the coils at the same time, which makes the cost considerably higher. Last edited by Billfitz; 09-18-2018 at 05:31 PM.. |
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09-18-2018, 06:32 PM | #68 | |
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Hmm, if they can last 100k miles per NKG, I will not bother to change mine(@52k) for another 5+ years then! https://www.ngk.com/product.aspx?zpid=41489 BTW, have your lifetime coolant be changed yet? |
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09-18-2018, 06:46 PM | #69 | |
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09-18-2018, 10:03 PM | #71 | |
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No one seems to agree on any of this maintenance melarchy |
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09-19-2018, 07:11 AM | #72 |
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Everyone agrees that if something's worn to the point that it's not working as it should that it should be replaced. The problem lies in knowing. Look at the pictures of the plugs a page back. The old plugs are obviously not worn, and don't need replacing. But how do you know that without pulling them, which runs the risk of damaging them? That's why I go by the manufacturer recommendation, either BMW or the manufacturer of the part, like NKG.
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09-19-2018, 11:04 AM | #73 |
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Just an FYI, if you have an ENET cable you can use ISTA (free software, look on these forums) to check your "rough running cylinder value"
[IMG]http://*************/wp-content/uploads/2016/08/rough1.png[/IMG] I forget what values are OK and what are out of spec indicating it might be time to change your plugs but ISTA explains all that. After installing new plugs in my car, there was a dramatic change in the numbers. I'll try to dig up the comparison photo. Taken from my sparkplug DIY here.
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09-19-2018, 11:08 AM | #74 | |
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09-19-2018, 11:14 AM | #75 | |
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Who can be trusted, 60k or 100k? This is similar to the debate of 60k versus 100k ZF 8AT fluid change, 50k versus 100k lifetime coolant change, etc, etc. |
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09-19-2018, 11:19 AM | #76 |
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No sound change in reference to the spark plug change.
I did this before I had MHD but others have shown a significant improvement in timing corrections with new plugs. And here is some more about the rough running values (was buried in another blog post) [IMG]http://*************/wp-content/uploads/2018/09/plugchangeexceprt.png[/IMG]
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09-19-2018, 11:46 AM | #78 | |
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MHD just released an updated set of maps so I'll be logging anyways, might be a good time to compare new vs old (current) plugs, for science of course.
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09-26-2018, 11:12 AM | #80 |
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09-26-2018, 11:34 AM | #81 | |
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If you read through this thread a number of people had the same issue and had to get creative with extensions and swivels to reach it. duct tape kept the spark plug socket from disconnecting from my ratchet |
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03-21-2019, 07:49 PM | #82 | |
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Looks like I'll be doing this work myself |
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03-27-2019, 12:05 PM | #83 |
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damn..... I just did my plugs last night, super easy except for the last one, huge pita but overall not that difficult, for a savings of 400$ its more than worth it DIY.
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03-27-2019, 12:12 PM | #84 | |
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As noted earlier, a good way to keep the socket from letting loose from the extension is to wrap the two together with duct tape. |
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03-27-2019, 12:17 PM | #85 | |
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Just replaced the serpentine belt as well which was another super easy DIY. Big week! I better get 200k out of this thing! |
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03-27-2019, 12:23 PM | #86 | |
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03-27-2019, 12:28 PM | #87 |
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03-28-2019, 01:50 AM | #88 |
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