Replacement Coils?
#1
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I know with certain vehicles that some are sensitive to using only factory parts,while some operate just fine with aftermarket parts. So the question is,what brand(s) of coils seem to work the best for the X300? If possible please list price and purchase location. Thanks All.
#2
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#3
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More info here.....if you have time to read it all
https://www.jaguarforums.com/forum/x...0-coils-93966/
Cheers
DD
https://www.jaguarforums.com/forum/x...0-coils-93966/
Cheers
DD
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#6
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The "coils" thread above sums up in 229 posts: that the ONLY coils that work best for the X300 are the original Lucas (Diamonds). You would do better to replace bad coils with original used coils, than to purchase ANY new aftermarket coils. Most all of them are junk and will fail within a year.
#7
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Well,the idea of replacing coils with used original Lucas coils has crossed my mind too. I guess you can test them with an Ohm meter to see if they read OK but part of the failure of a coil is when they start arcing and there's no way to tell without actually mounting the coil in place and running them. It would be nice if you'd be able to try a used coil before purchase but your still taking a 50/50 chance that the used coil may be good. A meter can't test for arcing.
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#9
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Like you said,substitution is the only method,but there's no real way to tell if you've got a good coil until it's been installed and running. Those Ebay coils you listed cost approx $100 each. Now I know buying parts for longevity and reliability would be great (assuming you can get them),but what about some of the other coils selling on Ebay. I've seen some selling for $50 (6pk). I'm sure they're not as reliable and may not last as long but you'd also have 12 compared to the one. And changing a coil takes just a few minutes and just requires a small ratchet,torx bit and 8mm socket,easily stored as a tool kit with plenty of spare coils if they'd need replacing.Is there that much of a failure rate for cheaper coils? And approximately what kind of time periods are we talking about?
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#12
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I've been reading up about this subject and wondered if the fault isn't in the coil itself but possibly that some of the aftermarket coils have cheaper insulation making them prone to failure from too much heat. I may try a cheap set and try wrapping them with some duct tape or other form of insulating material and see what their life expectancy is. It may take awhile to get some results but if one fails within a year then we'll know a little more whether it works or not.
#13
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Here's a link to our special Ebay offer for the above mentioned coils.
Jaguar XJ6 XJR XJS Ignition Coil LHE1510AB Made In Japan!! True OEM
Jaguar XJ6 XJR XJS Ignition Coil LHE1510AB Made In Japan!! True OEM
#14
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SNG Barratt USA (10-05-2016)
#15
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We recently replaced 3 coils on our 97 XJR. Viewed a you tube video on testing 2 wire coil-on-plug, and used an inexpensive Spark gap tester Purchased from Auto zone for less than $15. It has an adjustable gap by threading in and out; video suggested purchasing one with a "30" setting. The one we bought has a setting from 10-30 ( I assume it must mean 30,000 volts, since the gap over 1/2 inch). Easy to test with the car running, just remove only one coil at a time, connect bottom to earth with a jumper cable and leave the top of coil connected to wiring. If it jumps the gap consistently, it is working. If intermittent, or no spark, it is weak or dead. We found one not firing, one intermittent, and two that would work consistently at the 20-25 setting (weak). The advantage to this method is actual real time visual testing, that can be done quickly, and can identify ones that may be working now but are weaker (and probably on their way out). We went to a local salvage yard and bought 6 from a donor car for about $14 each, and tested them on our car one at a time right in the parking lot. Had any not been good, we could have returned immediately for credit. nice to know we have some inexpensive spares that can be replaced quickly and tested easily without spending hundreds in replacement bingo. Will try and post pics later.
The following 6 users liked this post by Shelby676:
95Leaper (10-18-2016),
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littlelic69 (10-18-2016),
overtheatlantic (10-15-2016),
smartobject (10-14-2016),
and 1 others liked this post.
#16
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We recently replaced 3 coils on our 97 XJR. Viewed a you tube video on testing 2 wire coil-on-plug, and used an inexpensive Spark gap tester Purchased from Auto zone for less than $15. It has an adjustable gap by threading in and out; video suggested purchasing one with a "30" setting. The one we bought has a setting from 10-30 ( I assume it must mean 30,000 volts, since the gap over 1/2 inch). Easy to test with the car running, just remove only one coil at a time, connect bottom to earth with a jumper cable and leave the top of coil connected to wiring. If it jumps the gap consistently, it is working. If intermittent, or no spark, it is weak or dead. We found one not firing, one intermittent, and two that would work consistently at the 20-25 setting (weak). The advantage to this method is actual real time visual testing, that can be done quickly, and can identify ones that may be working now but are weaker (and probably on their way out). We went to a local salvage yard and bought 6 from a donor car for about $14 each, and tested them on our car one at a time right in the parking lot. Had any not been good, we could have returned immediately for credit. nice to know we have some inexpensive spares that can be replaced quickly and tested easily without spending hundreds in replacement bingo. Will try and post pics later.
#17
#18
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Adjustable ignition coil tester on Ebay
Adjustable Ignition Coil Tester Spark Circuit Tester Securely Avoid Fire Tool US | eBay
Adjustable Ignition Coil Tester Spark Circuit Tester Securely Avoid Fire Tool US | eBay
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littlelic69 (10-19-2016)
#19