upjeeper
New Member
I posted recently about the issues I’m having with my 2001 Cobra with 112k on it (3rd throwout bearing seems to have failed, - this one lasted 350 miles...). The short story is I bought the car knowing it needed a throw out bearing. I took it into a local dealership / performance shop who did a throw out bearing, I had them do a clutch while they had it apart. I specifically asked for an OEM t/o bearing because I had read about other people having issues.
2,500 miles later the replaced bearing started to fail, so the same dealership replaced it under warranty.
Evidently no one at the shop was aware of the Performance line t/o bearing (M-7548-A), they only put the base line (F7ZZ-7548-AA) bearing in.
350 miles later I have a high pitched tinny / chirping / cricket like noise that’s RPM related. I took it into their shop, they finally had to have a “performance shop tech” look at it. The service manager called me yesterday and said the performance tech personally owned at least one 2001 Cobra he used to race and went through multiple transmissions and t/o bearings.
The story I was told is bearings are mass produced and the noise is because the bearing doesn’t sit flat in the housing. Nothing is wrong, it’s always going to be this way. He told me if I were to take the bearing and lay it on a surface place it would wobble.
I’ve worked in medical device manufacturing quality for 15+ years, plus being somewhat a gear head and this sounds like BS to me. This is also the same shop who said the 2nd time they did the bearing work, they couldn’t get the exhaust out because a bolt was rusted in place, so they had to drill it out. If this were the case, why wasn’t this a problem the first time they did the work? My point is, I have reason to not trust what they’re telling me.
I’m $600 into the work at this shop and it should be done correctly, but I’m about to the point where I consider it a sunk cost and will take it to another performance shop I do trust.
Has anyone heard this about bearings not laying flat and therefore causing a high-pitched cricket like noise?
Any other input?
2,500 miles later the replaced bearing started to fail, so the same dealership replaced it under warranty.
Evidently no one at the shop was aware of the Performance line t/o bearing (M-7548-A), they only put the base line (F7ZZ-7548-AA) bearing in.
350 miles later I have a high pitched tinny / chirping / cricket like noise that’s RPM related. I took it into their shop, they finally had to have a “performance shop tech” look at it. The service manager called me yesterday and said the performance tech personally owned at least one 2001 Cobra he used to race and went through multiple transmissions and t/o bearings.
The story I was told is bearings are mass produced and the noise is because the bearing doesn’t sit flat in the housing. Nothing is wrong, it’s always going to be this way. He told me if I were to take the bearing and lay it on a surface place it would wobble.
I’ve worked in medical device manufacturing quality for 15+ years, plus being somewhat a gear head and this sounds like BS to me. This is also the same shop who said the 2nd time they did the bearing work, they couldn’t get the exhaust out because a bolt was rusted in place, so they had to drill it out. If this were the case, why wasn’t this a problem the first time they did the work? My point is, I have reason to not trust what they’re telling me.
I’m $600 into the work at this shop and it should be done correctly, but I’m about to the point where I consider it a sunk cost and will take it to another performance shop I do trust.
Has anyone heard this about bearings not laying flat and therefore causing a high-pitched cricket like noise?
Any other input?