Re: Under Drive Pulleys..and the problems they cause.
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Re: Under Drive Pulleys..and the problems they cause.
I bought my 01 Cobra with BBK pulleys on it. The previous owner said he put them on a month before I got the car. 7 months later my oil pump came apart and destroyed my motor. 80k miles, only used mobil 1.
http://i178.photobucket.com/albums/w...ps34e31e6b.jpg |
Re: Under Drive Pulleys..and the problems they cause.
Brutal.
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Re: Under Drive Pulleys..and the problems they cause.
How much would it be to get the gears and have them installed by a shop?
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Re: Under Drive Pulleys..and the problems they cause.
Probably cost $200 - $300 in labor on the high side.
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Re: Under Drive Pulleys..and the problems they cause.
My replacement came with bbk UD pulleys. I took the crank off and replaced it with my old stock one because it looked very disturbing and just weird with the longer bolt. I left the water pump on. Is that going to effect anything?
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Re: Under Drive Pulleys..and the problems they cause.
Larger pulley's on the accessories works well but it's a good idea to get the correct length belt to keep the correct belt tension.
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Re: Under Drive Pulleys..and the problems they cause.
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Re: Under Drive Pulleys..and the problems they cause.
The best way is to install the stock pulley and run a seamstress tape around the entire route of the belt and take a measurement. Do the same with the larger pulley and note the difference then look for a belt that matches.
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Re: Under Drive Pulleys..and the problems they cause.
Is this the bbk style ud pulley that causes oil pump failure as well even if the engine is being shifted @ 6k?
http://i41.tinypic.com/2qtl5hc.jpg http://i40.tinypic.com/33k4uhu.jpg |
Re: Under Drive Pulleys..and the problems they cause.
I'm not a big fan of those because they often don't center accurately but I don't think any underdrive damper will destroy an engine kept at 6k or under. On a 4.6 the strong harmonics don't kick in until 6500 RPM.
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Re: Under Drive Pulleys..and the problems they cause.
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Re: Under Drive Pulleys..and the problems they cause.
Even the 99 cobra guys had problems with the bbk ud pulley . :/ hope your motor wasnt completely trashed mam. :(
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Re: Under Drive Pulleys..and the problems they cause.
With all 4 March pullies do you have to run a different belt?
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Re: Under Drive Pulleys..and the problems they cause.
Yes all 4 you need a 950k6 belt, if you do all three besides the alt its a 945k6, if you only do the march dampner its a923k6 FYI
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Re: Under Drive Pulleys..and the problems they cause.
What do you guys think of the summit racing ud pulley? http://www.summitracing.com/parts/su.../model/mustang
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Re: Under Drive Pulleys..and the problems they cause.
Honestly I'd run March fluidamper or ati only on these motors.
One thing I liked about the March is that it weighed more than the stock damper. |
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