 Rod knock or Cracked flywheel? |
 Jul 26, 2015 - 9:31 PM
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Enthusiast Joined Jul 5, '14 From Kansas Currently Offline Reputation: 1 (100%)  |
So today is a sad day and I'm trying to figure out whether the knocking I'm hearing is rod knock or a cracked flywheel. Anyone experienced either? For the past few months, even after swapping in new mounts, I've had trouble from time to time getting out of 1st gear without the entire car shaking. Knocking first started today at just around 2k rpms and was very subtle. The next time I started it is when it became more apparent and was loud throughout the entire rev range. Also noticed while driving it home revs would drop about twice as fast and had lost at least 25% of power. If anyone can throw in their 2 cents it would be greatly appreciated
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Jul 26, 2015 - 11:14 PM
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 Enthusiast  Joined Feb 23, '12 From Warrior, AL Currently Offline Reputation: 0 (0%) |
Does letting the clutch in and out make any difference? It seems lately a lot of members have had their 5S bottom end give out, so it could be that the engine is giving up the ghost. Either way I'd stop driving it if possible until you get it fixed. You should drop the oil pan and look for chunks of metal.
-------------------- 2001 Miata LS 5-speed
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Jul 26, 2015 - 11:37 PM
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Enthusiast Joined Jul 5, '14 From Kansas Currently Offline Reputation: 1 (100%) |
QUOTE (Box @ Jul 26, 2015 - 11:14 PM)  Does letting the clutch in and out make any difference? It seems lately a lot of members have had their 5S bottom end give out, so it could be that the engine is giving up the ghost. Either way I'd stop driving it if possible until you get it fixed. You should drop the oil pan and look for chunks of metal. No difference at all, whether I'm in neutral or accelerating. But from what I know about rod knock is that it should always be a constant knocking noise no matter what rpm, this seems more sporadic, like it may stop for a split second, be quieter, be louder, etc. Sucks to hear other people are bitin the dust too 
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Posts in this topic
Mattattack Rod knock or Cracked flywheel? Jul 26, 2015 - 9:31 PM
Box Rod knock can be at certain rpms, at first. Then ... Jul 26, 2015 - 11:43 PM texasnick First step, bottom end or top end? As Box mention... Jul 28, 2015 - 10:15 AM Box A really long flat blade screwdriver or the like w... Jul 28, 2015 - 11:55 AM Mattattack Thanks guys, couldn't ask for better responses... Jul 28, 2015 - 4:49 PM Box Well, weigh out the costs of doing a rebuild or sw... Jul 28, 2015 - 5:16 PM
PegGTS Yup I was in your same boat a few months ago. I po... Jul 28, 2015 - 7:56 PM |
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