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Pulling to the left on hard braking...
#1

Never had this before until they replaced the head gasket and rod bearings. The shop swears they marked everything before pulling it apart.



Brake hard, pulls slightly to the left. <img src="/forum/images/smilies/968/ohmy.gif" class="smilie" alt="" />



Any ideas on the cause?



I'll probably bring it in for them to look at...



Just wanted you'alls opinion first! <img src="/forum/images/smilies/968/biggrin.gif" class="smilie" alt="" />
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#2

They must have pulled the lower crossmember off to do this work, and in doing so you have to disconnect parts of the front suspension. Alignment would be the fix. A scribe mark on things is not close enough.
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#3

[quote name='Greimann' date='Oct 13 2005, 12:47 PM']  Alignment would be the fix. A scribe mark on things is not close enough.

[right][post="11172"]<{POST_SNAPBACK}>[/post][/right][/quote]



It probably needs an alignment, but check the tire pressure first. Glad you've got the car back on the road.
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#4

Did rod bearings on the 944 twice, got lucky enough with "scribing" only one of those times. Assuming all else is normal, you get to buy a fresh alignment. Sorry...
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#5

Tire pressures are all 36 psi...



Alignment is what I thought! Thanks for the advice...



The shop already said they would align it for free...so that's no biggy.
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#6

alignment is probably not it if it only pulls under braking - it should pull all the time if it's alignment, but could get worse under braking because you are applying more weight to those wheels



otherwise, i would look to see if they had to disconnect the caliper or brake line - a bit of air in there and you could have this problem - it could be as simple as a caliper hanging up due to old seals and sitting in the shop for a while



check your brake temps after a drive - they should be even left to right - if not, you ahve found your problem
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#7

I agree that it would be weird that it only does it under braking (however I find the alignment likely).



Since the master cylinder is a dual chambered system, front and back, would a bubble in one side not decrease the pressure and effectiveness on both sides equally? Path of lease resistance being the side with the bubble, decreasing the effective braking on both sides, so to pull to one side, would have to be mechanical?
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#8

depends on where the bubble is - if it's stuck near the caliper, no



i would find out exactly what they did first, before poking around blindly (costing you money in the process), and then start looking for answers



could be alignment, but it really should pull all the time, especially if it was the castor block they disconnected
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#9

Get yerself a power bleeder or better yet build one yerself. <$18

Bleed your front brakes u]and[/u] clutch slave cylinder. That is a cheap test and a new tool gets added to your pile. I have had a small pebble caught between the rotor and pad cause the car to pull to one side while braking, try backing up and hitting the brakes several >6 times. Sometimes you hear the grinding.....sometimes not.

Renron
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#10

Thanks for all the inputs -



Since I originally posted this, the problem got better a little each day. It doesn't do it at all anymore!



I'm pretty sure that the cause is that the front stabilizer bushing that's near the power steering pump was soaked in oil from the leaking oil pan gasket. Now that the leaks are all plugged up, the bushing gradually lost it's slipperiness.
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#11

That's an odd one. Well, glad it healed itself.



I suggest you buy two new bushings and replace them. Once swollen from oil, they are shot. Can be done with car on ramps (safer) and a little soap to get those suckers to slide on.



Also, take a close look at your castor block and any other rubber bushings on the A-arm/balljoint on that side. If they are soaked/swollen, you may need to attend to them at some point.



The PO on my car had let PS fluid leak out for a long time. It ran all the way down the rail to the back of the bloody car! This had pretty much trashed the items mentioned above for me.
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#12

I just replaced them two months ago. I'll take a look at them closely this weekend and see if they need replacing.
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