Orig. Posting Date | User Name | Edit Date |
Mar 2, 2023 09:24AM | 6464s | |
Mar 2, 2023 07:53AM | sgallegly1 | |
Mar 2, 2023 06:26AM | 6464s | |
Mar 1, 2023 09:37AM | sgallegly1 | |
Feb 27, 2023 11:12AM | 6464s | |
Feb 27, 2023 10:10AM | sgallegly1 | |
Feb 27, 2023 09:40AM | 6464s | |
Feb 25, 2023 02:36PM | sgallegly1 |
Total posts: 363
Last post: Mar 26, 2023 Member since:Jan 25, 2017
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I'm sure a competent machine shop can fix that.
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Last post: Mar 2, 2023 Member since:Oct 26, 2003
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Well sadly, I don't know how long the fresh pulley was loose. I only noticed that the pulley was wobbly a year after the rebuild. When I put a new pulley on, it wobbled as well. I ran the DTI on the crank and it was out by 0.001. I have been advised that the crank should be out of true no more than 0.0005. Likely time for a new crank... ugh.
Total posts: 363
Last post: Mar 26, 2023 Member since:Jan 25, 2017
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I have to say this sounds odd.
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Last post: Mar 2, 2023 Member since:Oct 26, 2003
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Thanks. I appreciate your suggestions. I ran a DTI on the end of the crank and likely the crank is the issue. The old pulley likely screwed up my crank, so looks like I'll be doing a teardown... ugh!
Total posts: 363
Last post: Mar 26, 2023 Member since:Jan 25, 2017
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Thanks for the info. Take the pulley off and spin . Try to put something there like a dial indicator to see if your crank is wobbling. If that is true , look at the pulley.
Total posts: 11
Last post: Mar 2, 2023 Member since:Oct 26, 2003
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Thanks for your note. It was a complete rebuild. Balanced crank, new bearings, etc. I hardly have over 400 miles on it, so there's not been any real wear.
Yesterday I disassembled it all, and then check the measure on the crank and there was no wear. I put on the pulley, and tapped it gently on before putting the crank bolt on, and spun the motor over a couple times and it was all looking perfectly true. Then I torqued down the pulley and it went a bit wobbly. Could it be the crank pulley bolt is slightly too long? It's all quite strange.
Best,
Shawn
Yesterday I disassembled it all, and then check the measure on the crank and there was no wear. I put on the pulley, and tapped it gently on before putting the crank bolt on, and spun the motor over a couple times and it was all looking perfectly true. Then I torqued down the pulley and it went a bit wobbly. Could it be the crank pulley bolt is slightly too long? It's all quite strange.
Best,
Shawn
Total posts: 363
Last post: Mar 26, 2023 Member since:Jan 25, 2017
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You say that you have a 66 Cooper S.. Cooper S crankshafts are kinda rare, were new bearings installed when you replaced the crankshaft? Balanced everything?
Total posts: 11
Last post: Mar 2, 2023 Member since:Oct 26, 2003
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Hi everybody,
I’ve got a 66 Cooper S. Rebuilt the engine about 12 years ago. Everything‘s been going great with the car until about a couple years ago. I noticed the crank pulley was starting to wobble. I checked the torque settings, and everything was fine, I bought a new crank, pulley and dampener. I just finished attaching it to the car today. I ran the starter around and still have considerable wobble. I know the crank dampener and pulley that I just attached are great quality as I got them from MED. The crank bolt is to 70 pounds as per spec.
any ideas are welcome.
any ideas are welcome.
Thanks very much.
shawn
shawn