RT Posted May 19, 2005 Share Posted May 19, 2005 Ok, I've got a problem. It seems that the power and torque of my engine can't keep the alternator in place. If I fang it hard then it snaps the bracket bolts. First off I had one long bolt holding the bottom.. snapped. So I put two short bolts in...snapped. So I got some high tensile steel bolts and nylocks and... snapped. It also bends the top bolt too on the tensioner bracket. My mate who also has a similar setup & power to me also has the same prob. He's even snapped his alternator bracket in half, snapped the top adjustable bolt and cracked the waterpump where the tensioner bracket bolts to. Both our pintos are making around 230-250hp and around 210-220ft/lbs of torque. ANY IDEAS GUYS??? I wonder what the cosworths do... Quote Link to comment Share on other sites More sharing options...
Muzzie Posted May 19, 2005 Share Posted May 19, 2005 Weld the f**kers Quote Link to comment Share on other sites More sharing options...
esky boi Posted May 19, 2005 Share Posted May 19, 2005 Drill the holes out and fit some thick as bolts maybe?? If the brackets will allow it Quote Link to comment Share on other sites More sharing options...
Jerm Posted May 19, 2005 Share Posted May 19, 2005 it would just snap the bracket then... you might h ave to fabricate a big thick ass bracket... that will accoomodate big as bolts Quote Link to comment Share on other sites More sharing options...
davidian Posted May 19, 2005 Share Posted May 19, 2005 i snapped two escort brackets going hard bro ended up going to the wreckers and getting an old (?) falcon one which was roughly the same shape but X2 as thick. just had to mod it slightly and its held up ever since... (even color coded the sucker ) Quote Link to comment Share on other sites More sharing options...
CaMpylobacter Posted May 19, 2005 Share Posted May 19, 2005 larger alternator pulley maybe??? that'll make it spins slower, therefore making the torque to drive it less, therefore less stress on teh bracketry Quote Link to comment Share on other sites More sharing options...
SYKOV6 Posted May 19, 2005 Share Posted May 19, 2005 have seen a alt set up on the drive shaft for that reason too many revs /torque bustin the accessories off the front of the motor. the drive shaft is more stable and able to have a short belt[no whip]. cleans up the engine bay too . have ya tried underdriving the alt? putting a larger pully on the alt slows it down decreasing the load on it this also works good on the water pump slowing it down helps it cool better by stopping it cavitating at high revs dave Quote Link to comment Share on other sites More sharing options...
craigt Posted May 19, 2005 Share Posted May 19, 2005 How bout gilmer type belt drive? Sounds like you need to change pulley sizes, smaller crank pulley would do the trick. But if you are going to get custom pulleys made, why not go to a gilmer belt drive, they are a lot more forgiving. They are self aligning, they require less belt tension making it easier on bearings. And the best reason..... they look f%^&ing cool! Quote Link to comment Share on other sites More sharing options...
RT Posted May 19, 2005 Author Share Posted May 19, 2005 yeah lots of good ideas there fellas cheers. I have thought of a glimer belt but of course... kinda wanted an easy option I suppose Quote Link to comment Share on other sites More sharing options...
Guest Eddie W Posted May 19, 2005 Share Posted May 19, 2005 The old rally BDAs used to have problems and they rubber mounted the brackets and also geared down the alt with a larger pulley. Eddie Quote Link to comment Share on other sites More sharing options...
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