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Ford Truck Club Forum > FORD F-100 | F-150 SERIES > 1992-1996 Ford F150



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  #1  
Old November 30th, 2012, 04:49 PM
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Default Bad engine wobble

Today i started my 94 and notice the truck was shaking quite good. I popped the hood to have a look. The Harmonic balancer has a good wobble to it. Before i drop $60 on a new balancer is there anything else i should consider?



1994 F150 XLT ExCab SB 306, 4R70w, 8.8 3.55 open, MSD StreetFire coil, Taylor Siro Pro wires, MSD cap and rotor, 1.72 Roller Rockers, 2º cam advance w/ Cloyes Street True Roller timing set, Flat top Hyperutectic pistons, Flowtech Long Tube headers, Xpipe, High flow Magnaflow converters, Spintech XL Sportsman DIDO muffler.

  #2  
Old November 30th, 2012, 08:31 PM
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If you want...you can remove the balancer and belt. Start the truck for a minute or so to see if the wobble goes away. If its that, you will notice immediate results. If its not that, you may want to consider looking and possible engine mounts and last but not least.....Id think maybe broken crank but very doubtful. I have seen big rigs run flawless with a broken crank and Ive seen them run with what seemed to be a bad injector with a slight wobble/miss.

I see you have a 302, so 1st Id pull your balancer off, 2nd Id check mounts and last crank. Good luck and there is my $.02

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  #3  
Old November 30th, 2012, 10:42 PM
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NO! Do NOT pulled the harmonic balancer off and run the engine, VERY bad idea. 302s are not internally balanced, so your main bearing would be ripped to shreds, on top of that, the crank gear is held in position by the balancer, on top of that, you would leak oil all over the place. If the balancer is wobbling at all, then it should be replaced. Both were in pretty bad shape when we droped the motor in, so it's not all that surprising. Be careful with the fron seal when you are putting the new one on.


89 F-150 5.0l AOD 2x4, 3.55 LS(+4), Converted to HO Roller, 3g Alt, GT40Ps, Y-pipe, Rerouted PCV, Dual Taurus E-fans, Explorer Injectors, Remote ICM, DIY Cold air, Rubber Vacuum System, Tranny cooler, Remote Tranny filter, Saginaw P\S swap, F350 Brakes, more.


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Old December 1st, 2012, 12:12 AM
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Thanks Booba. I looked around and actually found that Napa has the cheapest OE replacement Balancer. AZ was $62.99 for the same Dorman balancer Napa has for $58.95. O'Reilly's wants $59.99 for theirs.



1994 F150 XLT ExCab SB 306, 4R70w, 8.8 3.55 open, MSD StreetFire coil, Taylor Siro Pro wires, MSD cap and rotor, 1.72 Roller Rockers, 2º cam advance w/ Cloyes Street True Roller timing set, Flat top Hyperutectic pistons, Flowtech Long Tube headers, Xpipe, High flow Magnaflow converters, Spintech XL Sportsman DIDO muffler.

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Old December 1st, 2012, 11:07 AM
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the rubber inside them cracks and rots


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Old December 1st, 2012, 02:13 PM
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And thats EXACTLY why Im a "diesel mechanic" and not an auto mechanic! I woulda never thought that! Thanks for the save Booba.....Ill have to remember that! YAY.....I learned something today!

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Old December 1st, 2012, 04:19 PM
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The Napa website said my local store had one available........... it was wrong. So i go to O'R's and picked up theirs for $59.99. So much for saving a buck. I thought i was buying a Dorman but got this instead.




I have never heard of the brand before nor have i ever bought an Austrailian made part before. Everything has been Chinese, Japanese, or American.

The install proved to be a bit more than i thought. Mainly in getting the old balancer off. I really was hoping i could do it without taking out the radiator. No such luck. I had to pull it in order to get the electric impact in there to get the balancer off. But everything else went smoothly.



1994 F150 XLT ExCab SB 306, 4R70w, 8.8 3.55 open, MSD StreetFire coil, Taylor Siro Pro wires, MSD cap and rotor, 1.72 Roller Rockers, 2º cam advance w/ Cloyes Street True Roller timing set, Flat top Hyperutectic pistons, Flowtech Long Tube headers, Xpipe, High flow Magnaflow converters, Spintech XL Sportsman DIDO muffler.

  #8  
Old December 1st, 2012, 06:02 PM
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Lazy! You can pull the cover over the torque converter and stick a screw driver or ratchet extension threw the fly wheel to keep the motor from turning. The use a wrench to pull the balancer off. Either way works though, lol. Did it fix your wobbling?


89 F-150 5.0l AOD 2x4, 3.55 LS(+4), Converted to HO Roller, 3g Alt, GT40Ps, Y-pipe, Rerouted PCV, Dual Taurus E-fans, Explorer Injectors, Remote ICM, DIY Cold air, Rubber Vacuum System, Tranny cooler, Remote Tranny filter, Saginaw P\S swap, F350 Brakes, more.


  #9  
Old December 1st, 2012, 07:18 PM
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Got to be WAY better than Chinese and Japanese parts! Probably better than mexican parts as well.
  #10  
Old December 1st, 2012, 07:47 PM
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Mexican = a lot of FORD parts


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