S.A.S.C.
General Topics => General Discussion => Topic started by: MurrayPeterson on September 04, 2015, 09:00:21 PM
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Got the car back today -- new clutch and flywheel installed. Old clutch was down to the rivets and the flywheel was cracked. The good news is that the clutch works wonderfully. The bad news is that the car still shudders uncontrollably under acceleration :(
My guess (and hope) is the inner CV joints on the rear axles (known problem with AP1s). One can do a short term hack by swapping the CV joint shells to present a new load surface to the bearings, but the proper fix is to replace both rear axle assemblies (individual parts not available).
So, lots more money and lots more delay. It's not looking good for any more racing this year :(
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But it wasn't shaking just before the clutch went right? I'm thinking there might be something loose in the drivetrain from doing the clutch ... Might be worth checking all the bolts etc. of the drivetrain ... transmission mounts, etc. etc.
R
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No, it was shaking before the clutch got changed. I hoped that it was the clutch, but that didn't fix the problem.
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Avoid one of my favourite mistakes. If you are thinking of changing cars don't throw too much money at fixing this one (I did this with the RX8 a number of times and could have saved a ton of money if I didn't)
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You and Jo are more than welcome to codrive the Fiesta if you want Murray. I just threw on a brand new set of tires.
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Avoid one of my favourite mistakes. If you are thinking of changing cars don't throw too much money at fixing this one (I did this with the RX8 a number of times and could have saved a ton of money if I didn't)
I hear ya, but I can't sell the car until it is in running condition. The clutch was well and truly shot, and this vibration would turn off any potential buyer. It doesn't even feel safe to drive at the moment.
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You and Jo are more than welcome to codrive the Fiesta if you want Murray. I just threw on a brand new set of tires.
Thanks! We may take you up on that -- we'll see if I can get this issue sorted out.
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Those half-shafts are cheap in the 'States ... Autozone used to sell them for less than $100 a pop ... get some when in Lincoln!!!! :)
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Two new half shafts, and the vibration is gone. Sadly, not enough time off from work and racing to source cheap ones :( It's been an expensive month.
Anyway, looks like we can make it to next weekend's event in Red Deer. Perhaps it will make me feel better after the Lincoln debacle.
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Anyway, looks like we can make it to next weekend's event in Red Deer. Perhaps it will make me feel better after the Lincoln debacle.
Next weekend (19th and 20th) is Fort Macleod, the 26th and 27th are in Red Deer (don't want you heading the wrong way)
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Thanks for the reminder. We still haven't decided if we are going to Helena to the Coneheads or to Fort Macleod.
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Turns out that going to Fort Macleod was a *great* decision. Fourth run and one of the new half-axles snapped off at launch -- but our AMA gold card took us home for free. Taxi ride home from the shop was the biggest expense.
Lesson learned -- OEM "equivalent" is no such thing :(
FML...
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Today was full of challenges :-\
I didn't even see you guys.
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I didn't even see you guys.
That's because we got a ride home in the tow truck yesterday :(
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I didn't even see you guys.
That's because we got a ride home in the tow truck yesterday :(
OH! You broke on practice day. Today was rough. Wind was blowing cones and timing trigger around. Timing trigger got crunched early in second group runs...
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GrantC in Edmonton discovered the same thing with NAPA axles. He had it snap on a launch, but it took out the ABS ring with it.
http://www.westernsubaruclub.com/smf/index.php?topic=17093.msg536141#msg536141
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Got the original OEM half-axles put back on the car, and got a refund for the shitty ones.
I did the "CV joint swap" (http://www.s2ki.com/s2000/topic/241367-axle-bucket-inner-cv-joint-swap-diy-with-pics/) to the original half-axles, and the car no longer vibrates at any speed. Guess I should have done that first...
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Awesome... so does that mean we are going to see you at Red Deer this weekend?
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We will be there.
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So all that exhaust rattling on the weekend wasn't the exhaust -- I have a blown motor mount :(
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Duct tape and zip ties.
You were driving the wheels off the s2k on Sunday - it was great to watch.
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You were driving the wheels off the s2k on Sunday - it was great to watch.
Not driving hard enough -- I just couldn't catch Tom in his STI. I could try to blame it on being a power course, but it really wasn't all that bad for the S2000 either.
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Blame the motor mount. Too much torque flex meant you couldn't put it all down to the ground ;)
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Blame the motor mount. Too much torque flex meant you couldn't put it all down to the ground ;)
Torque? What is this thing called torque? :P
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You don't need torque if your car is light ;D
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Blame the motor mount. Too much torque flex meant you couldn't put it all down to the ground ;)
It sure explains the wheel hop on launch -- very disturbing.
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I've got a similar but quieter noise ... maybe have to check my motor mounts too! Which side blew up?
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Right hand side. It was collapsed entirely, while the left still had a visible gap at the top of the rubber.
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Thanks - will check mine soon ...
R
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Both of mine were shot. Cam replaced them today, and what a difference! I think I have had a broken mount for a long time. Car no longer shudders when starting or stopping the engine, and vtec has got a real kick compared to what I was used to.
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Interesting! I know I replaced half shafts some time ago but the vibration did not go away .... I bet I have the same problem! :)
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Tose aftermarket half shafts I used still had some vibration under acceleration. When I went back to OEM, the vibration disappeared.
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I get some vibration in the 30-70km/h range under light acceleration too, thought it was a wheel but its something else as well.
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That is almost certainly the inner CV joint bearing surface getting rough. Here is a cheap fix: http://www.s2ki.com/s2000/topic/241367-axle-bucket-inner-cv-joint-swap-diy-with-pics/
I have a socket for the read axle nut if you want to borrow it.
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That is almost certainly the inner CV joint bearing surface getting rough. Here is a cheap fix: http://www.s2ki.com/s2000/topic/241367-axle-bucket-inner-cv-joint-swap-diy-with-pics/
I have a socket for the read axle nut if you want to borrow it.
Thanks, I will probably tackle it over winter while we tear the car down and refresh a lot of things.