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The Terminator
Terminator Talk
04 Cobra idler bearings still good @ 90k ?
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<blockquote data-quote="highcompression" data-source="post: 13141528" data-attributes="member: 110182"><p>I just replaced ALL my idler bearings (inner and outer billet flows) with some Nachi 6203 NSE. Think it takes 9 total bearings to do all. I have had had good luck with the Nachi. Matter of fact, that's what came in my Thump tensioner. It's a good bearing, high temp grease, riveted steel cage, good breathing design on the seals. Minimal grease loss (some is normal on "run in"). I have rebuilt some centrifugal's and been building manual transmissions for years and learned more about bearings then I'll ever need to know. Some of the NSK, SKF, etc have a phelonic cage, smaller (more) balls, inferior grease, and seals that aren't up to the task. Basically the cage, seal type and grease will determine the longevity per application. The Nachi I for mentioned is about identical in every way to the bearings that ford used (cage, grease, seals). I've dissected about every brand, type, and age/use of bearing (a lot of 6203's for that matter, common bearing). I just use a 40 ton hydraulic press that I use for everything, just take time, use press approiately and make sure you're pressing "square". The old heat and cold trick works well too, I do that with some transmission parts ... would likely require some light persuation though, I prefer a press whenever possible.</p><p></p><p>Just my .02 ......</p></blockquote><p></p>
[QUOTE="highcompression, post: 13141528, member: 110182"] I just replaced ALL my idler bearings (inner and outer billet flows) with some Nachi 6203 NSE. Think it takes 9 total bearings to do all. I have had had good luck with the Nachi. Matter of fact, that's what came in my Thump tensioner. It's a good bearing, high temp grease, riveted steel cage, good breathing design on the seals. Minimal grease loss (some is normal on "run in"). I have rebuilt some centrifugal's and been building manual transmissions for years and learned more about bearings then I'll ever need to know. Some of the NSK, SKF, etc have a phelonic cage, smaller (more) balls, inferior grease, and seals that aren't up to the task. Basically the cage, seal type and grease will determine the longevity per application. The Nachi I for mentioned is about identical in every way to the bearings that ford used (cage, grease, seals). I've dissected about every brand, type, and age/use of bearing (a lot of 6203's for that matter, common bearing). I just use a 40 ton hydraulic press that I use for everything, just take time, use press approiately and make sure you're pressing "square". The old heat and cold trick works well too, I do that with some transmission parts ... would likely require some light persuation though, I prefer a press whenever possible. Just my .02 ...... [/QUOTE]
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04 Cobra idler bearings still good @ 90k ?
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