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The BMW Range
///M Cars
Pointers pls on a contemplated 2002 e46 m3 purchase
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<blockquote data-quote="ALBundy" data-source="post: 649007" data-attributes="member: 15"><p>1) Worn differential bushes DO NOT cause clunking, unless vibration is considered clunking to you. </p><p>When the differential cover bushes are shot, you will experienced vibration or a low hum grinding noise under acceleration. If you are cruising there is no vibration. This happened to mine, and after I replaced the bushes the vibration was gone. Again, first hand experience as a 3 1/2 year old owner. As I mentioned earlier, the only noise from the LSD is a grinding noise when it's cold. Most of the time, changing the LSD oil will eliminate that noise and BMW's LSD oil with friction modifier is a must. Again, clunking is due to the free play in the drive shaft head/joint as explained in the SIB due to load changes. Very simple, if one upshift and ease off the throttle, there won't be any clunking noise due to minimal load changes. You can try it if you have an E46M3.</p><p></p><p>Similarly for guibo and long shaft mounting. </p><p></p><p>I speak as a M3 owner and someone that has been modding BMWs for 13 years, from engine transplant to</p><p>Turbo charging a BMW. Google has make many googling experts but not many know what they are talking about. Talk to me if you own an e46 M3 and has driven the car daily (and on the track) for 3 1/2 years <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> Otherwise, with all due respect, you are just relying on the experience of others (rightly and wrongly)<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p><p></p><p>Cheers</p></blockquote><p></p>
[QUOTE="ALBundy, post: 649007, member: 15"] 1) Worn differential bushes DO NOT cause clunking, unless vibration is considered clunking to you. When the differential cover bushes are shot, you will experienced vibration or a low hum grinding noise under acceleration. If you are cruising there is no vibration. This happened to mine, and after I replaced the bushes the vibration was gone. Again, first hand experience as a 3 1/2 year old owner. As I mentioned earlier, the only noise from the LSD is a grinding noise when it's cold. Most of the time, changing the LSD oil will eliminate that noise and BMW's LSD oil with friction modifier is a must. Again, clunking is due to the free play in the drive shaft head/joint as explained in the SIB due to load changes. Very simple, if one upshift and ease off the throttle, there won't be any clunking noise due to minimal load changes. You can try it if you have an E46M3. Similarly for guibo and long shaft mounting. I speak as a M3 owner and someone that has been modding BMWs for 13 years, from engine transplant to Turbo charging a BMW. Google has make many googling experts but not many know what they are talking about. Talk to me if you own an e46 M3 and has driven the car daily (and on the track) for 3 1/2 years :) Otherwise, with all due respect, you are just relying on the experience of others (rightly and wrongly);) Cheers [/QUOTE]
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